diff --git a/fp-plugins/mastodon/Function-Organigram.md b/fp-plugins/mastodon/Function-Organigram.md
index 015d5baa..8b694a62 100644
--- a/fp-plugins/mastodon/Function-Organigram.md
+++ b/fp-plugins/mastodon/Function-Organigram.md
@@ -13,11 +13,12 @@ The layout is intentionally hierarchical so responsibilities, call paths, and im
 - Recently added FlatPress configuration reuse, centralized plugin-state detection, FlatPress I/O helpers, explicit `FILE_PERMISSIONS` handling for Mastodon runtime files, APCu-backed last-known-good state fallback, and file-backed synchronization cooldown guards are reflected explicitly.
 - The companion-plugin diagnostics for BBCode, PhotoSwipe, AudioVideo, Tag, and Emoticons are covered.
 - The admin-side Mastodon instance-information snapshot, manual refresh button, exact-version display, and reuse of cached instance capabilities for later sync runs are covered.
-- Mastodon instance-dependent URL budgeting, bounded PHP execution-budget refreshes, central per-run Mastodon API rate-limit guards with request/media-upload/delete budgets, persistent cross-run media-upload/delete/account-status-page windows, OAuth scope discovery with a strict `profile`-scope preference and an older-instance fallback to `read:accounts`, media-type-aware asynchronous media-upload readiness polling for longer AudioVideo processing, AudioVideo optional endtag descriptions for local export and remote import, scheduled-run recent-content windows, dirty queues for changed older mapped content, optional rotating old-thread reply checks, best-effort cleanup of unattached uploaded Mastodon media before a failed final posting finishes, follow-up deletion synchronization, the admin toggle that can disable deletion synchronization, comment tombstones that block stale re-imports of deleted remote replies, early protection of locally deleted exported FlatPress comments before the next content sync, local reattachment of surviving descendant replies to the synchronized entry status during deletion follow-up, targeted descendant-recheck queues with a dedicated `comment_rechecks` follow-up scope, 5-minute scheduled-sync cooldown guards, state-write failure reporting, and the separate persistence of content-sync and deletion-sync counters are reflected explicitly.
+- Mastodon instance-dependent URL budgeting, bounded PHP execution-budget refreshes, central per-run Mastodon API rate-limit guards with request/media-upload/delete budgets, persistent cross-run media-upload/delete/account-status-page windows, OAuth scope discovery with a strict `profile`-scope preference and an older-instance fallback to `read:accounts`, media-type-aware asynchronous media-upload readiness polling for longer AudioVideo processing, AudioVideo optional endtag descriptions for local export and remote import, scheduled-run recent-content windows, dirty queues for changed older mapped content, optional rotating known-thread reply checks, best-effort cleanup of unattached uploaded Mastodon media before a failed final posting finishes, follow-up deletion synchronization with scheduled-window-limited remote existence lookups and progress cursors for large mapping sets, the admin toggle that can disable deletion synchronization, comment tombstones that block stale re-imports of deleted remote replies, early protection of locally deleted exported FlatPress comments before the next content sync, local reattachment of surviving descendant replies to the synchronized entry status during deletion follow-up, targeted descendant-recheck queues with a dedicated `comment_rechecks` follow-up scope, 5-minute scheduled-sync cooldown guards, state-write failure reporting, and the separate persistence of content-sync and deletion-sync counters are reflected explicitly.
 - FlatPress timeoffset-aware remote import timestamps for Mastodon statuses and replies are reflected explicitly.
 - FlatPress-local admin time display for the daily synchronization time, last content sync, and last deletion sync is reflected explicitly while keeping the stored synchronization time in UTC.
 - Friendly deletion-sync guards for normalized comment mapping metadata are reflected explicitly.
 - The default-enabled option to quote the replied-to Mastodon comment during comment import, including the replied-to user label, is reflected explicitly.
+- The admin text for the known-thread reply-check option now explains that enabling it imports replies on already synchronized threads at the cost of additional Mastodon API requests.
 - Export-side conversion of active Emoticons plugin shortcodes to standard Unicode emoji for FlatPress entry titles, entry bodies, comment author labels, and comment bodies is reflected explicitly.
 - All plugin functions and admin panel methods currently present in the file are covered.
 - Function summaries are derived from the current source file PHPDoc and verified against the function names and their location in the file.
@@ -77,7 +78,7 @@ The plugin file currently contains **311** callable functions/methods documented
   Non-forced scheduled runs are gated by `plugin_mastodon_sync_guard_active()` and mark a 5-minute `content` cooldown through `plugin_mastodon_sync_guard_mark()` before network work starts. After acquiring the sync lock, the function starts a per-run Mastodon API guard through `plugin_mastodon_rate_limit_guard_start()`, so general requests, media uploads, status deletes, persistent cross-run media/delete windows, persistent account-status paging windows, and Mastodon `X-RateLimit-*` headers can stop the run cleanly. If both directions finish successfully, the function marks a follow-up deletion pass as pending for a later web request and stores a `deletions_not_before` timestamp at least 5 minutes after the completed content sync. A completed sync is reported as failed if `plugin_mastodon_state_write()` cannot persist the updated state; the updated state is still placed in the short APCu fallback cache when APCu is available.
 
 - `plugin_mastodon_run_deletion_sync()`  
-  Runs the real deletion synchronization in a separate follow-up request. It first checks `plugin_mastodon_should_run_deletion_sync()` so the user-controlled admin toggle can disable the delete pass, then checks `plugin_mastodon_deletion_sync_due()` so the delete pass cannot start before the persisted 5-minute separation window has passed. It applies the same 5-minute cooldown guard with the `deletion` kind for non-forced scheduled runs, starts the per-run Mastodon API guard after acquiring the sync lock, and every remote status delete must pass both the per-run delete budget and the persistent cross-run delete window. It resets only `deletion_stats` while preserving `content_stats` from the last content sync, gates mapped items through `plugin_mastodon_mapping_matches_sync_start()` so the delete pass stays inside the configured sync-start window, then either runs the full reconciliation pass or a targeted `comment_rechecks` follow-up scope via `plugin_mastodon_state_has_comment_recheck_scope()`. Direct descendants of newly deleted replies are queued with `plugin_mastodon_queue_comment_descendant_remote_rechecks()`, surviving direct child replies can be reattached to the synchronized entry status through `plugin_mastodon_reattach_local_comment_to_entry_status()`, and pending deep-thread cleanup is processed breadth-first through `plugin_mastodon_process_pending_comment_remote_rechecks()`. A successful delete pass is reported as failed if the resulting state cannot be persisted.
+  Runs the real deletion synchronization in a separate follow-up request. It first checks `plugin_mastodon_should_run_deletion_sync()` so the user-controlled admin toggle can disable the delete pass, then checks `plugin_mastodon_deletion_sync_due()` so the delete pass cannot start before the persisted 5-minute separation window has passed. It applies the same 5-minute cooldown guard with the `deletion` kind for non-forced scheduled runs, starts the per-run Mastodon API guard after acquiring the sync lock, and every remote status delete must pass both the per-run delete budget and the persistent cross-run delete window. It resets only `deletion_stats` while preserving `content_stats` from the last content sync, gates all mapped items through `plugin_mastodon_mapping_matches_sync_start()` so the delete pass stays inside the manual sync-start window, and uses `plugin_mastodon_mapping_matches_deletion_lookup_window()` to limit only remote existence lookups for still-existing local items to the automatic scheduled 7/14/30-day window. Local deletions are still propagated to Mastodon when they are inside the manual sync-start range, even if they are outside the automatic scheduled window. Large full delete passes advance through `deletion_cursor_entries` and `deletion_cursor_comments` via `plugin_mastodon_mapping_keys_after_cursor()`, so later runs continue after the last successfully checked mapping instead of repeating the first batch. The function then either runs the full reconciliation pass or a targeted `comment_rechecks` follow-up scope via `plugin_mastodon_state_has_comment_recheck_scope()`. Direct descendants of newly deleted replies are queued with `plugin_mastodon_queue_comment_descendant_remote_rechecks()`, surviving direct child replies can be reattached to the synchronized entry status through `plugin_mastodon_reattach_local_comment_to_entry_status()`, and pending deep-thread cleanup is processed breadth-first through `plugin_mastodon_process_pending_comment_remote_rechecks()`. A successful delete pass is reported as failed if the resulting state cannot be persisted.
 
 ### Local → remote export path
 
@@ -126,7 +127,7 @@ The plugin file currently contains **311** callable functions/methods documented
 
 ### Admin panel flow
 
-- `plugin_mastodon_admin_assign()` assigns the plugin data for the Smarty view, including companion-plugin diagnostics, the scheduled-window radio choices, the old-thread reply-check toggle, cached Mastodon instance-information rows, and cache-state/error metadata.
+- `plugin_mastodon_admin_assign()` assigns the plugin data for the Smarty view, including companion-plugin diagnostics, the scheduled-window radio choices, the known-thread reply-check toggle, cached Mastodon instance-information rows, and cache-state/error metadata.
 - `setup()` registers the admin template and delegates to `plugin_mastodon_admin_assign()`.
 - `main()` keeps the FlatPress admin lifecycle stable.
 - `onsubmit()` handles:
@@ -139,336 +140,339 @@ The plugin file currently contains **311** callable functions/methods documented
 
 ## A. Entry points and admin integration
 
-- `plugin_mastodon_head()` — line 2110 — Print Mastodon profile metadata into the HTML head.
-- `plugin_mastodon_maybe_sync()` — line 9086 — Run the scheduled synchronization when the current request is due.
-- `plugin_mastodon_run_sync()` — line 9006 — Run a full synchronization cycle.
-- `plugin_mastodon_run_deletion_sync()` — line 8759 — Run the deferred deletion synchronization in a follow-up request after content sync completed.
-- `plugin_mastodon_sync_due()` — line 8984 — Determine whether the scheduled synchronization is currently due.
-- `plugin_mastodon_admin_assign()` — line 9248 — Assign plugin data to Smarty for the admin panel, including cached instance-information rows.
-- `setup()` — line 9296 — Register the Mastodon admin panel template and assign plugin data to Smarty.
-- `main()` — line 9301 — Keep the admin panel lifecycle compatible with FlatPress without extra processing.
-- `onsubmit()` — line 9305 — Process configuration saves, OAuth actions, authorization-code exchange, manual instance-information refreshes, and the manual synchronization trigger.
+- `plugin_mastodon_head()` — line 2106 — Print Mastodon profile metadata into the HTML head.
+- `plugin_mastodon_maybe_sync()` — line 9239 — Run the scheduled synchronization when the current request is due.
+- `plugin_mastodon_run_sync()` — line 9159 — Run a full synchronization cycle.
+- `plugin_mastodon_run_deletion_sync()` — line 8847 — Run the deferred deletion synchronization in a follow-up request after content sync completed, with scheduled-window-limited remote existence lookups and progress cursors.
+- `plugin_mastodon_sync_due()` — line 9137 — Determine whether the scheduled synchronization is currently due.
+- `plugin_mastodon_admin_assign()` — line 9401 — Assign plugin data to Smarty for the admin panel, including cached instance-information rows.
+- `setup()` — line 9453 — Register the Mastodon admin panel template and assign plugin data to Smarty.
+- `main()` — line 9458 — Keep the admin panel lifecycle compatible with FlatPress without extra processing.
+- `onsubmit()` — line 9462 — Process configuration saves, OAuth actions, authorization-code exchange, manual instance-information refreshes, and the manual synchronization trigger.
 
 ## B. Defaults, configuration, secrets, and centralized FlatPress feature toggles
 
 - `plugin_mastodon_default_options()` — line 101 — Return the default plugin option values.
-- `plugin_mastodon_clear_saved_instance_info()` — line 128 — Remove persisted instance-information snapshots and related admin refresh errors from an option array.
-- `plugin_mastodon_compact_instance_document()` — line 147 — Reduce `/api/v2/instance` responses to the stable subset reused by the plugin and admin table.
-- `plugin_mastodon_saved_instance_document()` — line 352 — Decode the persisted compact instance snapshot from the saved plugin configuration.
-- `plugin_mastodon_store_instance_document()` — line 397 — Persist a compact instance-information snapshot in the FlatPress plugin configuration and warm request/APCu caches.
-- `plugin_mastodon_store_instance_error()` — line 443 — Persist the latest instance-information refresh failure for the admin diagnostics view.
-- `plugin_mastodon_refresh_instance_information()` — line 459 — Force a live `/api/v2/instance` refresh, compact the response, and store it for later requests.
-- `plugin_mastodon_default_content_stats()` — line 479 — Return the default counters for the last content synchronization.
-- `plugin_mastodon_default_deletion_stats()` — line 496 — Return the default counters for the last deletion synchronization.
-- `plugin_mastodon_default_state()` — line 514 — Return the default runtime state structure, including the targeted deletion-follow-up scope marker.
-- `plugin_mastodon_oauth_legacy_scopes()` — line 534 — Return the legacy OAuth scope string used before scope discovery was added.
-- `plugin_mastodon_oauth_profile_scopes()` — line 542 — Return the stricter OAuth scope string that uses `profile` for `verify_credentials`.
-- `plugin_mastodon_oauth_server_metadata()` — line 551 — Discover and cache OAuth authorization-server metadata from `/.well-known/oauth-authorization-server`.
-- `plugin_mastodon_oauth_supported_scopes()` — line 570 — Parse the discoverable OAuth scopes supported by the configured Mastodon instance.
-- `plugin_mastodon_oauth_scope_supported()` — line 607 — Check whether the configured Mastodon instance advertises support for a specific OAuth scope.
-- `plugin_mastodon_oauth_preferred_scopes()` — line 628 — Prefer the narrow `profile` scope on current instances and fall back to `read:accounts` on older ones.
-- `plugin_mastodon_oauth_scopes()` — line 645 — Return the OAuth scopes that the currently registered app may safely request.
-- `plugin_mastodon_fp_config()` — line 722 — Return the FlatPress configuration, preferring the early-loaded core cache.
-- `plugin_mastodon_fp_config_value()` — line 758 — Read a nested FlatPress configuration value.
-- `plugin_mastodon_fp_timeoffset_seconds()` — line 774 — Return the configured FlatPress time offset in seconds for exact local admin-time conversion.
-- `plugin_mastodon_fp_timeoffset_label()` — line 794 — Format the configured FlatPress time offset as a UTC label for admin users.
-- `plugin_mastodon_sync_time_to_minutes()` — line 824 — Convert a normalized `HH:MM` sync-time value into minutes after midnight.
-- `plugin_mastodon_minutes_to_sync_time()` — line 835 — Convert minutes after midnight back into a normalized `HH:MM` sync-time value.
-- `plugin_mastodon_sync_time_utc_to_local()` — line 851 — Convert the stored UTC synchronization time to the FlatPress-local admin time.
-- `plugin_mastodon_sync_time_local_to_utc()` — line 862 — Convert the FlatPress-local admin synchronization time back to stored UTC.
-- `plugin_mastodon_format_admin_datetime()` — line 873 — Format stored UTC timestamps for the admin panel using FlatPress `timeoffset`, date format, and time format.
-- `plugin_mastodon_fp_timeoffset_hours()` — line 786 — Return the configured FlatPress time offset in whole hours.
-- `plugin_mastodon_get_options()` — line 1752 — Load the saved plugin options and merge them with defaults.
-- `plugin_mastodon_save_options()` — line 1811 — Persist plugin options, invalidate mismatching instance snapshots on URL changes, and keep matching refreshed snapshots.
-- `plugin_mastodon_secret_key()` — line 1888 — Build the encryption key used for stored secrets.
-- `plugin_mastodon_secret_encode()` — line 1905 — Encode a secret value before storing it in the configuration.
-- `plugin_mastodon_secret_decode()` — line 1928 — Decode a previously stored secret value.
-- `plugin_mastodon_normalize_instance_url()` — line 1959 — Normalize the configured Mastodon instance URL.
-- `plugin_mastodon_normalize_head_username()` — line 1992 — Normalize the configured Mastodon username for HTML head metadata.
-- `plugin_mastodon_instance_authority()` — line 2031 — Return the Mastodon instance authority used in fediverse creator metadata.
-- `plugin_mastodon_profile_url()` — line 2061 — Build the public Mastodon profile URL used for the rel-me link.
-- `plugin_mastodon_fediverse_creator_value()` — line 2077 — Build the fediverse creator meta value.
-- `plugin_mastodon_normalize_status_language()` — line 2135 — Normalize a FlatPress locale string to a Mastodon-compatible ISO 639-1 code.
-- `plugin_mastodon_configured_status_language()` — line 2157 — Read the configured FlatPress locale and return the Mastodon language code.
-- `plugin_mastodon_normalize_sync_time()` — line 2177 — Normalize the configured daily sync time.
-- `plugin_mastodon_normalize_sync_start_date()` — line 2194 — Normalize the configured sync start date.
-- `plugin_mastodon_normalize_scheduled_window_days()` — line 2235 — Normalize the configured 7/14/30-day automatic window for scheduled runs.
-- `plugin_mastodon_scheduled_window_choices()` — line 2247 — Return the localized admin radio choices for the scheduled synchronization window.
-- `plugin_mastodon_normalize_boolean_option()` — line 2220 — Normalize a boolean-like option value to the stored string representation.
-- `plugin_mastodon_normalize_update_local_from_remote()` — line 2236 — Normalize the toggle that controls whether existing local content may be updated from remote Mastodon data.
-- `plugin_mastodon_should_update_local_from_remote()` — line 2245 — Check whether remote Mastodon updates may overwrite already existing local FlatPress content.
-- `plugin_mastodon_normalize_import_synced_comments_as_entries()` — line 2254 — Normalize the toggle that allows importing already synchronized local comments as entries.
-- `plugin_mastodon_should_import_synced_comments_as_entries()` — line 2263 — Check whether a remote Mastodon status that is already mapped to a local FlatPress comment may also be imported as an entry.
-- `plugin_mastodon_normalize_quote_imported_reply_parent()` — line 2272 — Normalize the toggle that controls whether imported Mastodon replies should quote the replied-to comment.
-- `plugin_mastodon_should_quote_imported_reply_parent()` — line 2281 — Check whether imported Mastodon replies should include a quote of the replied-to comment.
-- `plugin_mastodon_normalize_old_thread_reply_check()` — line 2330 — Normalize the toggle that enables rotating context checks for old synchronized Mastodon threads.
-- `plugin_mastodon_should_check_old_thread_replies()` — line 2339 — Check whether old synchronized Mastodon threads should be checked for replies in rotating batches.
-- `plugin_mastodon_normalize_delete_sync_enabled()` — line 2290 — Normalize the toggle that enables or disables the follow-up deletion synchronization.
-- `plugin_mastodon_should_run_deletion_sync()` — line 2299 — Check whether the follow-up deletion synchronization is enabled.
-- `plugin_mastodon_enabled_plugin_state()` — line 3681 — Determine whether a FlatPress plugin is enabled in the centralized plugin configuration.
-- `plugin_mastodon_tag_plugin_active()` — line 3746 — Determine whether the Tag plugin is active for the current FlatPress request.
-- `plugin_mastodon_bbcode_plugin_active()` — line 3763 — Determine whether the BBCode plugin is active for the current FlatPress request.
-- `plugin_mastodon_photoswipe_plugin_active()` — line 3780 — Determine whether the PhotoSwipe plugin is active for the current FlatPress request.
-- `plugin_mastodon_audiovideo_plugin_active()` — line 3797 — Determine whether the AudioVideo plugin is active for the current FlatPress request.
-- `plugin_mastodon_emoticons_plugin_active()` — line 3814 — Determine whether the Emoticons plugin is active for the current FlatPress request.
-- `plugin_mastodon_companion_plugins_status()` — line 3829 — Return the status of companion FlatPress plugins used for the full Mastodon feature set.
+- `plugin_mastodon_clear_saved_instance_info()` — line 133 — Remove persisted instance-information snapshots and related admin refresh errors from an option array.
+- `plugin_mastodon_compact_instance_document()` — line 152 — Reduce `/api/v2/instance` responses to the stable subset reused by the plugin and admin table.
+- `plugin_mastodon_saved_instance_document()` — line 357 — Decode the persisted compact instance snapshot from the saved plugin configuration.
+- `plugin_mastodon_store_instance_document()` — line 402 — Persist a compact instance-information snapshot in the FlatPress plugin configuration and warm request/APCu caches.
+- `plugin_mastodon_store_instance_error()` — line 448 — Persist the latest instance-information refresh failure for the admin diagnostics view.
+- `plugin_mastodon_refresh_instance_information()` — line 464 — Force a live `/api/v2/instance` refresh, compact the response, and store it for later requests.
+- `plugin_mastodon_default_content_stats()` — line 484 — Return the default counters for the last content synchronization.
+- `plugin_mastodon_default_deletion_stats()` — line 501 — Return the default counters for the last deletion synchronization.
+- `plugin_mastodon_default_state()` — line 514 — Return the default runtime state structure, including the targeted deletion-follow-up scope marker and deletion progress cursors.
+- `plugin_mastodon_oauth_legacy_scopes()` — line 542 — Return the legacy OAuth scope string used before scope discovery was added.
+- `plugin_mastodon_oauth_profile_scopes()` — line 550 — Return the stricter OAuth scope string that uses `profile` for `verify_credentials`.
+- `plugin_mastodon_oauth_server_metadata()` — line 559 — Discover and cache OAuth authorization-server metadata from `/.well-known/oauth-authorization-server`.
+- `plugin_mastodon_oauth_supported_scopes()` — line 578 — Parse the discoverable OAuth scopes supported by the configured Mastodon instance.
+- `plugin_mastodon_oauth_scope_supported()` — line 615 — Check whether the configured Mastodon instance advertises support for a specific OAuth scope.
+- `plugin_mastodon_oauth_preferred_scopes()` — line 636 — Prefer the narrow `profile` scope on current instances and fall back to `read:accounts` on older ones.
+- `plugin_mastodon_oauth_scopes()` — line 653 — Return the OAuth scopes that the currently registered app may safely request.
+- `plugin_mastodon_fp_config()` — line 730 — Return the FlatPress configuration, preferring the early-loaded core cache.
+- `plugin_mastodon_fp_config_value()` — line 766 — Read a nested FlatPress configuration value.
+- `plugin_mastodon_fp_timeoffset_seconds()` — line 782 — Return the configured FlatPress time offset in seconds for exact local admin-time conversion.
+- `plugin_mastodon_fp_timeoffset_label()` — line 802 — Format the configured FlatPress time offset as a UTC label for admin users.
+- `plugin_mastodon_sync_time_to_minutes()` — line 832 — Convert a normalized `HH:MM` sync-time value into minutes after midnight.
+- `plugin_mastodon_minutes_to_sync_time()` — line 843 — Convert minutes after midnight back into a normalized `HH:MM` sync-time value.
+- `plugin_mastodon_sync_time_utc_to_local()` — line 859 — Convert the stored UTC synchronization time to the FlatPress-local admin time.
+- `plugin_mastodon_sync_time_local_to_utc()` — line 870 — Convert the FlatPress-local admin synchronization time back to stored UTC.
+- `plugin_mastodon_format_admin_datetime()` — line 881 — Format stored UTC timestamps for the admin panel using FlatPress `timeoffset`, date format, and time format.
+- `plugin_mastodon_fp_timeoffset_hours()` — line 794 — Return the configured FlatPress time offset in whole hours.
+- `plugin_mastodon_get_options()` — line 1748 — Load the saved plugin options and merge them with defaults.
+- `plugin_mastodon_save_options()` — line 1807 — Persist plugin options, invalidate mismatching instance snapshots on URL changes, and keep matching refreshed snapshots.
+- `plugin_mastodon_secret_key()` — line 1899 — Build the encryption key used for stored secrets.
+- `plugin_mastodon_secret_encode()` — line 1916 — Encode a secret value before storing it in the configuration.
+- `plugin_mastodon_secret_decode()` — line 1939 — Decode a previously stored secret value.
+- `plugin_mastodon_normalize_instance_url()` — line 1970 — Normalize the configured Mastodon instance URL.
+- `plugin_mastodon_normalize_head_username()` — line 2003 — Normalize the configured Mastodon username for HTML head metadata.
+- `plugin_mastodon_instance_authority()` — line 2042 — Return the Mastodon instance authority used in fediverse creator metadata.
+- `plugin_mastodon_profile_url()` — line 2072 — Build the public Mastodon profile URL used for the rel-me link.
+- `plugin_mastodon_fediverse_creator_value()` — line 2088 — Build the fediverse creator meta value.
+- `plugin_mastodon_normalize_status_language()` — line 2146 — Normalize a FlatPress locale string to a Mastodon-compatible ISO 639-1 code.
+- `plugin_mastodon_configured_status_language()` — line 2168 — Read the configured FlatPress locale and return the Mastodon language code.
+- `plugin_mastodon_normalize_sync_time()` — line 2188 — Normalize the configured daily sync time.
+- `plugin_mastodon_normalize_sync_start_date()` — line 2205 — Normalize the configured sync start date.
+- `plugin_mastodon_normalize_scheduled_window_days()` — line 2231 — Normalize the configured 7/14/30-day automatic window for scheduled runs.
+- `plugin_mastodon_scheduled_window_choices()` — line 2243 — Return the localized admin radio choices for the scheduled synchronization window.
+- `plugin_mastodon_normalize_boolean_option()` — line 2256 — Normalize a boolean-like option value to the stored string representation.
+- `plugin_mastodon_normalize_update_local_from_remote()` — line 2272 — Normalize the toggle that controls whether existing local content may be updated from remote Mastodon data.
+- `plugin_mastodon_should_update_local_from_remote()` — line 2281 — Check whether remote Mastodon updates may overwrite already existing local FlatPress content.
+- `plugin_mastodon_normalize_import_synced_comments_as_entries()` — line 2290 — Normalize the toggle that allows importing already synchronized local comments as entries.
+- `plugin_mastodon_should_import_synced_comments_as_entries()` — line 2299 — Check whether a remote Mastodon status that is already mapped to a local FlatPress comment may also be imported as an entry.
+- `plugin_mastodon_normalize_quote_imported_reply_parent()` — line 2308 — Normalize the toggle that controls whether imported Mastodon replies should quote the replied-to comment.
+- `plugin_mastodon_should_quote_imported_reply_parent()` — line 2317 — Check whether imported Mastodon replies should include a quote of the replied-to comment.
+- `plugin_mastodon_normalize_old_thread_reply_check()` — line 2326 — Normalize the toggle that enables rotating context checks for known synchronized Mastodon threads.
+- `plugin_mastodon_should_check_old_thread_replies()` — line 2335 — Check whether known synchronized Mastodon threads should be checked for replies in rotating batches.
+- `plugin_mastodon_normalize_delete_sync_enabled()` — line 2344 — Normalize the toggle that enables or disables the follow-up deletion synchronization.
+- `plugin_mastodon_should_run_deletion_sync()` — line 2353 — Check whether the follow-up deletion synchronization is enabled.
+- `plugin_mastodon_enabled_plugin_state()` — line 3898 — Determine whether a FlatPress plugin is enabled in the centralized plugin configuration.
+- `plugin_mastodon_tag_plugin_active()` — line 3963 — Determine whether the Tag plugin is active for the current FlatPress request.
+- `plugin_mastodon_bbcode_plugin_active()` — line 3980 — Determine whether the BBCode plugin is active for the current FlatPress request.
+- `plugin_mastodon_photoswipe_plugin_active()` — line 3997 — Determine whether the PhotoSwipe plugin is active for the current FlatPress request.
+- `plugin_mastodon_audiovideo_plugin_active()` — line 4014 — Determine whether the AudioVideo plugin is active for the current FlatPress request.
+- `plugin_mastodon_emoticons_plugin_active()` — line 4031 — Determine whether the Emoticons plugin is active for the current FlatPress request.
+- `plugin_mastodon_companion_plugins_status()` — line 4046 — Return the status of companion FlatPress plugins used for the full Mastodon feature set.
 
 ## C. Caching, filesystem helpers, logging, and persisted state
 
-- `plugin_mastodon_runtime_cache_get()` — line 665 — Return a value from the request-local plugin cache.
-- `plugin_mastodon_runtime_cache_set()` — line 689 — Store a value in the request-local plugin cache.
-- `plugin_mastodon_runtime_cache_clear()` — line 707 — Clear one request-local plugin cache bucket or the complete cache.
-- `plugin_mastodon_io_read_file()` — line 907 — Read a file through the FlatPress I/O layer when available.
-- `plugin_mastodon_io_read_file_uncached()` — line 920 — Read a file without FlatPress request-local caches.
-- `plugin_mastodon_file_permissions_mode()` — line 935 — Return the FlatPress `FILE_PERMISSIONS` mode used for plugin runtime files.
-- `plugin_mastodon_apply_file_permissions()` — line 944 — Apply FlatPress `FILE_PERMISSIONS` to a plugin runtime file.
-- `plugin_mastodon_io_write_file()` — line 957 — Write a file through the FlatPress I/O layer when available and enforce `FILE_PERMISSIONS` after successful writes.
-- `plugin_mastodon_io_append_file()` — line 978 — Append to a file via the FlatPress I/O layer.
-- `plugin_mastodon_apcu_enabled()` — line 994 — Check whether shared APCu caching is available for the plugin.
-- `plugin_mastodon_apcu_cache_key()` — line 1003 — Build the namespaced APCu key used by this plugin.
-- `plugin_mastodon_apcu_fetch()` — line 1017 — Fetch a value from APCu through the FlatPress namespace helper.
-- `plugin_mastodon_apcu_store()` — line 1032 — Store a value in APCu through the FlatPress namespace helper.
-- `plugin_mastodon_apcu_delete()` — line 1045 — Delete a value from APCu using the FlatPress namespace key builder.
-- `plugin_mastodon_state_fallback_key()` — line 1057 — Return the APCu key used for the short-lived last-known-good state fallback.
-- `plugin_mastodon_state_fallback_store()` — line 1066 — Store a normalized runtime state in APCu for a 5-minute emergency fallback window.
-- `plugin_mastodon_state_fallback_read()` — line 1078 — Fetch the short-lived last-known-good state fallback from APCu.
-- `plugin_mastodon_sync_guard_kind()` — line 1096 — Normalize the cooldown guard kind.
-- `plugin_mastodon_sync_guard_apcu_key()` — line 1106 — Return the APCu key used for one sync cooldown guard.
-- `plugin_mastodon_sync_guard_entry_active()` — line 1116 — Check whether one cooldown guard entry is still active.
-- `plugin_mastodon_sync_guard_apcu_store()` — line 1127 — Store one cooldown guard in APCu.
-- `plugin_mastodon_sync_guard_file_read()` — line 1140 — Read and prune the file-backed cooldown guard.
-- `plugin_mastodon_sync_guard_file_write()` — line 1167 — Write the file-backed cooldown guard.
-- `plugin_mastodon_sync_guard_active()` — line 1188 — Check whether a recent scheduled content/deletion pass is still cooling down.
-- `plugin_mastodon_sync_guard_mark()` — line 1213 — Mark a 5-minute cooldown guard for a scheduled sync/deletion pass.
-- `plugin_mastodon_sync_guard_clear()` — line 1234 — Clear one sync cooldown guard.
-- `plugin_mastodon_rate_limit_default_budgets()` — line 1249 — Return conservative per-run Mastodon API budgets.
-- `plugin_mastodon_rate_limit_window_budgets()` — line 1273 — Return persistent cross-run Mastodon API window budgets.
-- `plugin_mastodon_rate_limit_window_config()` — line 1300 — Return the persistent window key, budget, TTL, and block reason for one request kind.
-- `plugin_mastodon_rate_limit_window_entry()` — line 1320 — Normalize one persistent rate-limit window entry and drop expired values.
-- `plugin_mastodon_rate_limit_window_read()` — line 1340 — Read and prune the persistent cross-run rate-limit windows.
-- `plugin_mastodon_rate_limit_window_write()` — line 1372 — Persist cross-run rate-limit windows with FlatPress file permissions.
-- `plugin_mastodon_rate_limit_window_acquire()` — line 1397 — Reserve one media-upload/delete/account-status-page slot from the persistent cross-run window.
-- `plugin_mastodon_rate_limit_window_clear()` — line 1446 — Clear persistent rate-limit windows for tests or recovery tooling.
-- `plugin_mastodon_rate_limit_guard_start()` — line 1458 — Start the per-run Mastodon API rate-limit guard.
-- `plugin_mastodon_rate_limit_guard_stop()` — line 1484 — Stop the per-run Mastodon API rate-limit guard while keeping its summary inspectable.
-- `plugin_mastodon_rate_limit_guard_active()` — line 1495 — Check whether the per-run Mastodon API guard is active.
-- `plugin_mastodon_rate_limit_guard_summary()` — line 1503 — Return the current per-run rate-limit guard summary.
-- `plugin_mastodon_rate_limit_headers()` — line 1512 — Normalize response headers for rate-limit checks.
-- `plugin_mastodon_rate_limit_request_kind()` — line 1533 — Classify Mastodon API requests as general, media upload, status deletion, or account-status paging.
-- `plugin_mastodon_rate_limit_block()` — line 1558 — Mark the current run as blocked by a rate-limit budget, persistent window, or Mastodon response and log the stop reason with budget counters once per run.
-- `plugin_mastodon_rate_limit_acquire()` — line 1602 — Reserve per-run and persistent window budget before a Mastodon API request proceeds.
-- `plugin_mastodon_rate_limit_observe_response()` — line 1651 — Update the guard from `X-RateLimit-*` headers and `429` responses.
-- `plugin_mastodon_rate_limit_blocked_reason()` — line 1675 — Return the current rate-limit block reason.
-- `plugin_mastodon_rate_limit_blocked_response()` — line 1687 — Build the synthetic `429` response used for locally blocked requests.
-- `plugin_mastodon_rate_limit_state_error()` — line 1703 — Return the rate-limit reason that should be written to synchronization state.
-- `plugin_mastodon_file_prestat()` — line 1713 — Read a cheap file metadata snapshot for cache validation.
-- `plugin_mastodon_file_prestat_signature()` — line 1733 — Convert a file metadata snapshot into a stable cache signature.
-- `plugin_mastodon_ensure_state_dir()` — line 2472 — Ensure that the plugin runtime directory exists.
-- `plugin_mastodon_log()` — line 2481 — Append a line to the plugin sync log.
-- `plugin_mastodon_state_read()` — line 2491 — Load the persisted runtime state from disk and fall back to the short-lived APCu state if the file is temporarily missing, empty, or invalid.
-- `plugin_mastodon_state_write()` — line 2545 — Persist the runtime state to disk and always refresh the short-lived APCu last-known-good state when possible.
-- `plugin_mastodon_normalize_deletions_pending_scope()` — line 2570 — Normalize the targeted deletion-follow-up scope marker.
-- `plugin_mastodon_state_normalize()` — line 2583 — Normalize a runtime state array and fill in missing keys.
-- `plugin_mastodon_state_comment_key()` — line 2631 — Build the compound state key used for comment mappings.
-- `plugin_mastodon_state_set_entry_mapping()` — line 2646 — Store the mapping between a local entry and a remote status.
-- `plugin_mastodon_state_set_comment_mapping()` — line 2684 — Store the mapping between a local comment and a remote status.
-- `plugin_mastodon_state_remove_entry_mapping()` — line 2719 — Remove the mapping between a local entry and a remote status.
-- `plugin_mastodon_state_remove_comment_mapping()` — line 2738 — Remove the mapping between a local comment and a remote status.
-- `plugin_mastodon_state_set_dirty_entry()` — line 2886 — Add an older changed entry to the persistent dirty queue.
-- `plugin_mastodon_state_remove_dirty_entry()` — line 2906 — Remove an entry from the dirty queue after successful synchronization or cleanup.
-- `plugin_mastodon_state_has_dirty_entry()` — line 2919 — Check whether an entry is queued for synchronization outside the scheduled window.
-- `plugin_mastodon_state_set_dirty_comment()` — line 2932 — Add an older changed comment to the persistent dirty queue.
-- `plugin_mastodon_state_remove_dirty_comment()` — line 2955 — Remove a comment from the dirty queue after successful synchronization or cleanup.
-- `plugin_mastodon_state_has_dirty_comment()` — line 2969 — Check whether a comment is queued for synchronization outside the scheduled window.
-- `plugin_mastodon_state_get_entry_meta()` — line 2759 — Return mapping metadata for a local entry.
-- `plugin_mastodon_state_set_entry_media_meta()` — line 2773 — Persist cached remote media IDs plus local attachment/description signatures for a synchronized entry.
-- `plugin_mastodon_state_get_comment_meta()` — line 2854 — Return mapping metadata for a local comment.
-- `plugin_mastodon_state_set_comment_tombstone()` — line 2868 — Store a tombstone that blocks stale re-imports of one deleted remote comment.
-- `plugin_mastodon_state_has_comment_tombstone()` — line 2888 — Check whether one remote Mastodon comment status was tombstoned locally.
-- `plugin_mastodon_protect_locally_deleted_exported_comments()` — line 2899 — Tombstone locally deleted exported FlatPress comment mappings before the next content sync can stale-reimport them from Mastodon thread context.
-- `plugin_mastodon_reattach_local_comment_to_entry_status()` — line 2945 — Remove a local imported reply parent link and reattach the surviving reply to the synchronized entry status after its remote parent reply disappeared.
-- `plugin_mastodon_state_remove_pending_comment_remote_recheck()` — line 3005 — Remove one pending descendant recheck marker.
-- `plugin_mastodon_state_get_pending_comment_remote_recheck()` — line 3019 — Return one pending descendant recheck marker.
-- `plugin_mastodon_state_set_pending_comment_remote_recheck()` — line 3034 — Mark one local comment for follow-up verification after an ancestor disappeared remotely.
-- `plugin_mastodon_state_set_deletions_pending()` — line 3060 — Persist whether another deletion follow-up request is pending, which scope it should run, and when it may start.
-- `plugin_mastodon_deletion_sync_due()` — line 3074 — Check whether the pending deletion synchronization may start after its persisted not-before timestamp.
-- `plugin_mastodon_state_has_comment_recheck_scope()` — line 3102 — Check whether the next deletion follow-up request should run only the targeted descendant recheck scope.
-- `plugin_mastodon_build_comment_remote_child_index()` — line 3111 — Build a direct-child index for mapped remote reply trees.
-- `plugin_mastodon_queue_comment_descendant_remote_rechecks()` — line 3139 — Queue only the direct mapped local children of one deleted remote comment for additional verification passes.
-- `plugin_mastodon_process_pending_comment_remote_rechecks()` — line 3178 — Process pending descendant rechecks breadth-first so deeper reply chains can converge within the same targeted follow-up request.
+- `plugin_mastodon_runtime_cache_get()` — line 673 — Return a value from the request-local plugin cache.
+- `plugin_mastodon_runtime_cache_set()` — line 697 — Store a value in the request-local plugin cache.
+- `plugin_mastodon_runtime_cache_clear()` — line 715 — Clear one request-local plugin cache bucket or the complete cache.
+- `plugin_mastodon_io_read_file()` — line 915 — Read a file through the FlatPress I/O layer when available.
+- `plugin_mastodon_io_read_file_uncached()` — line 928 — Read a file without FlatPress request-local caches.
+- `plugin_mastodon_file_permissions_mode()` — line 943 — Return the FlatPress `FILE_PERMISSIONS` mode used for plugin runtime files.
+- `plugin_mastodon_apply_file_permissions()` — line 952 — Apply FlatPress `FILE_PERMISSIONS` to a plugin runtime file.
+- `plugin_mastodon_io_write_file()` — line 965 — Write a file through the FlatPress I/O layer when available and enforce `FILE_PERMISSIONS` after successful writes.
+- `plugin_mastodon_io_append_file()` — line 986 — Append to a file via the FlatPress I/O layer.
+- `plugin_mastodon_apcu_enabled()` — line 1002 — Check whether shared APCu caching is available for the plugin.
+- `plugin_mastodon_apcu_cache_key()` — line 1011 — Build the namespaced APCu key used by this plugin.
+- `plugin_mastodon_apcu_fetch()` — line 1025 — Fetch a value from APCu through the FlatPress namespace helper.
+- `plugin_mastodon_apcu_store()` — line 1040 — Store a value in APCu through the FlatPress namespace helper.
+- `plugin_mastodon_apcu_delete()` — line 1053 — Delete a value from APCu using the FlatPress namespace key builder.
+- `plugin_mastodon_state_fallback_key()` — line 1065 — Return the APCu key used for the short-lived last-known-good state fallback.
+- `plugin_mastodon_state_fallback_store()` — line 1074 — Store a normalized runtime state in APCu for a 5-minute emergency fallback window.
+- `plugin_mastodon_state_fallback_read()` — line 1086 — Fetch the short-lived last-known-good state fallback from APCu.
+- `plugin_mastodon_sync_guard_kind()` — line 1104 — Normalize the cooldown guard kind.
+- `plugin_mastodon_sync_guard_apcu_key()` — line 1114 — Return the APCu key used for one sync cooldown guard.
+- `plugin_mastodon_sync_guard_entry_active()` — line 1124 — Check whether one cooldown guard entry is still active.
+- `plugin_mastodon_sync_guard_apcu_store()` — line 1135 — Store one cooldown guard in APCu.
+- `plugin_mastodon_sync_guard_file_read()` — line 1148 — Read and prune the file-backed cooldown guard.
+- `plugin_mastodon_sync_guard_file_write()` — line 1175 — Write the file-backed cooldown guard.
+- `plugin_mastodon_sync_guard_active()` — line 1196 — Check whether a recent scheduled content/deletion pass is still cooling down.
+- `plugin_mastodon_sync_guard_mark()` — line 1221 — Mark a 5-minute cooldown guard for a scheduled sync/deletion pass.
+- `plugin_mastodon_sync_guard_clear()` — line 1242 — Clear one sync cooldown guard.
+- `plugin_mastodon_rate_limit_default_budgets()` — line 1257 — Return conservative per-run Mastodon API budgets.
+- `plugin_mastodon_rate_limit_window_budgets()` — line 1281 — Return persistent cross-run Mastodon API window budgets.
+- `plugin_mastodon_rate_limit_window_config()` — line 1308 — Return the persistent window key, budget, TTL, and block reason for one request kind.
+- `plugin_mastodon_rate_limit_window_entry()` — line 1328 — Normalize one persistent rate-limit window entry and drop expired values.
+- `plugin_mastodon_rate_limit_window_read()` — line 1348 — Read and prune the persistent cross-run rate-limit windows.
+- `plugin_mastodon_rate_limit_window_write()` — line 1380 — Persist cross-run rate-limit windows with FlatPress file permissions.
+- `plugin_mastodon_rate_limit_window_acquire()` — line 1405 — Reserve one media-upload/delete/account-status-page slot from the persistent cross-run window.
+- `plugin_mastodon_rate_limit_window_clear()` — line 1454 — Clear persistent rate-limit windows for tests or recovery tooling.
+- `plugin_mastodon_rate_limit_guard_start()` — line 1466 — Start the per-run Mastodon API rate-limit guard.
+- `plugin_mastodon_rate_limit_guard_stop()` — line 1492 — Stop the per-run Mastodon API rate-limit guard while keeping its summary inspectable.
+- `plugin_mastodon_rate_limit_guard_active()` — line 1503 — Check whether the per-run Mastodon API guard is active.
+- `plugin_mastodon_rate_limit_guard_summary()` — line 1511 — Return the current per-run rate-limit guard summary.
+- `plugin_mastodon_rate_limit_headers()` — line 1520 — Normalize response headers for rate-limit checks.
+- `plugin_mastodon_rate_limit_request_kind()` — line 1541 — Classify Mastodon API requests as general, media upload, status deletion, or account-status paging.
+- `plugin_mastodon_rate_limit_block()` — line 1566 — Mark the current run as blocked by a rate-limit budget, persistent window, or Mastodon response and log the stop reason with budget counters once per run.
+- `plugin_mastodon_rate_limit_acquire()` — line 1610 — Reserve per-run and persistent window budget before a Mastodon API request proceeds.
+- `plugin_mastodon_rate_limit_observe_response()` — line 1655 — Update the guard from `X-RateLimit-*` headers and `429` responses.
+- `plugin_mastodon_rate_limit_blocked_reason()` — line 1679 — Return the current rate-limit block reason.
+- `plugin_mastodon_rate_limit_blocked_response()` — line 1691 — Build the synthetic `429` response used for locally blocked requests.
+- `plugin_mastodon_rate_limit_state_error()` — line 1707 — Return the rate-limit reason that should be written to synchronization state.
+- `plugin_mastodon_file_prestat()` — line 1717 — Read a cheap file metadata snapshot for cache validation.
+- `plugin_mastodon_file_prestat_signature()` — line 1737 — Convert a file metadata snapshot into a stable cache signature.
+- `plugin_mastodon_ensure_state_dir()` — line 2587 — Ensure that the plugin runtime directory exists.
+- `plugin_mastodon_log()` — line 2596 — Append a line to the plugin sync log.
+- `plugin_mastodon_state_read()` — line 2606 — Load the persisted runtime state from disk and fall back to the short-lived APCu state if the file is temporarily missing, empty, or invalid.
+- `plugin_mastodon_state_write()` — line 2660 — Persist the runtime state to disk and always refresh the short-lived APCu last-known-good state when possible.
+- `plugin_mastodon_normalize_deletions_pending_scope()` — line 2685 — Normalize the targeted deletion-follow-up scope marker.
+- `plugin_mastodon_state_normalize()` — line 2698 — Normalize a runtime state array and fill in missing keys.
+- `plugin_mastodon_state_comment_key()` — line 2747 — Build the compound state key used for comment mappings.
+- `plugin_mastodon_state_set_entry_mapping()` — line 2762 — Store the mapping between a local entry and a remote status.
+- `plugin_mastodon_state_set_comment_mapping()` — line 2800 — Store the mapping between a local comment and a remote status.
+- `plugin_mastodon_state_remove_entry_mapping()` — line 2835 — Remove the mapping between a local entry and a remote status.
+- `plugin_mastodon_state_remove_comment_mapping()` — line 2857 — Remove the mapping between a local comment and a remote status.
+- `plugin_mastodon_state_set_dirty_entry()` — line 2882 — Add an older changed entry to the persistent dirty queue.
+- `plugin_mastodon_state_remove_dirty_entry()` — line 2902 — Remove an entry from the dirty queue after successful synchronization or cleanup.
+- `plugin_mastodon_state_has_dirty_entry()` — line 2915 — Check whether an entry is queued for synchronization outside the scheduled window.
+- `plugin_mastodon_state_set_dirty_comment()` — line 2928 — Add an older changed comment to the persistent dirty queue.
+- `plugin_mastodon_state_remove_dirty_comment()` — line 2951 — Remove a comment from the dirty queue after successful synchronization or cleanup.
+- `plugin_mastodon_state_has_dirty_comment()` — line 2965 — Check whether a comment is queued for synchronization outside the scheduled window.
+- `plugin_mastodon_state_get_entry_meta()` — line 2976 — Return mapping metadata for a local entry.
+- `plugin_mastodon_state_set_entry_media_meta()` — line 2990 — Persist cached remote media IDs plus local attachment/description signatures for a synchronized entry.
+- `plugin_mastodon_state_get_comment_meta()` — line 3071 — Return mapping metadata for a local comment.
+- `plugin_mastodon_state_set_comment_tombstone()` — line 3085 — Store a tombstone that blocks stale re-imports of one deleted remote comment.
+- `plugin_mastodon_state_has_comment_tombstone()` — line 3105 — Check whether one remote Mastodon comment status was tombstoned locally.
+- `plugin_mastodon_protect_locally_deleted_exported_comments()` — line 3116 — Tombstone locally deleted exported FlatPress comment mappings before the next content sync can stale-reimport them from Mastodon thread context.
+- `plugin_mastodon_reattach_local_comment_to_entry_status()` — line 3162 — Remove a local imported reply parent link and reattach the surviving reply to the synchronized entry status after its remote parent reply disappeared.
+- `plugin_mastodon_state_remove_pending_comment_remote_recheck()` — line 3222 — Remove one pending descendant recheck marker.
+- `plugin_mastodon_state_get_pending_comment_remote_recheck()` — line 3236 — Return one pending descendant recheck marker.
+- `plugin_mastodon_state_set_pending_comment_remote_recheck()` — line 3251 — Mark one local comment for follow-up verification after an ancestor disappeared remotely.
+- `plugin_mastodon_state_set_deletions_pending()` — line 3277 — Persist whether another deletion follow-up request is pending, which scope it should run, and when it may start.
+- `plugin_mastodon_deletion_sync_due()` — line 3291 — Check whether the pending deletion synchronization may start after its persisted not-before timestamp.
+- `plugin_mastodon_state_has_comment_recheck_scope()` — line 3319 — Check whether the next deletion follow-up request should run only the targeted descendant recheck scope.
+- `plugin_mastodon_build_comment_remote_child_index()` — line 3328 — Build a direct-child index for mapped remote reply trees.
+- `plugin_mastodon_queue_comment_descendant_remote_rechecks()` — line 3356 — Queue only the direct mapped local children of one deleted remote comment for additional verification passes.
+- `plugin_mastodon_process_pending_comment_remote_rechecks()` — line 3395 — Process pending descendant rechecks breadth-first so deeper reply chains can converge within the same targeted follow-up request.
 
 ## D. Date, timestamp, visibility, and threading helpers
 
-- `plugin_mastodon_timestamp_to_flatpress_time()` — line 808 — Convert a real Unix timestamp into FlatPress's offset-adjusted timestamp model.
-- `plugin_mastodon_timestamp_date_key()` — line 2308 — Convert a FlatPress-adjusted timestamp into a stable date key.
-- `plugin_mastodon_local_item_date_key()` — line 2322 — Determine the date key of a local FlatPress entry or comment.
-- `plugin_mastodon_remote_status_date_key()` — line 2342 — Determine the date key of a remote Mastodon status.
-- `plugin_mastodon_datetime_date_key()` — line 2368 — Normalize a stored date/datetime string to the sync-start date-key format.
-- `plugin_mastodon_date_matches_sync_start()` — line 2392 — Determine whether a content date passes the configured sync start date.
-- `plugin_mastodon_scheduled_window_start_date()` — line 2468 — Return the FlatPress-local date key that starts the automatic scheduled sync window.
-- `plugin_mastodon_date_matches_content_window()` — line 2483 — Combine the durable sync-start lower bound with the scheduled-run recent-content window.
-- `plugin_mastodon_local_item_matches_sync_start()` — line 2411 — Determine whether a local FlatPress item should be synchronized.
-- `plugin_mastodon_local_item_matches_content_window()` — line 2510 — Determine whether a local FlatPress item is inside the active content synchronization window.
-- `plugin_mastodon_remote_status_matches_sync_start()` — line 2421 — Determine whether a remote Mastodon status should be synchronized.
-- `plugin_mastodon_remote_status_matches_content_window()` — line 2525 — Determine whether a remote Mastodon status is inside the active content synchronization window.
-- `plugin_mastodon_mapping_matches_sync_start()` — line 2432 — Determine whether a stored synchronization mapping still belongs to the active sync-start window.
-- `plugin_mastodon_parse_iso_datetime()` — line 3283 — Parse an ISO date/time string into FlatPress date format.
-- `plugin_mastodon_parse_iso_timestamp()` — line 3301 — Parse an ISO date/time value into a Unix timestamp.
-- `plugin_mastodon_remote_status_timestamp()` — line 3323 — Resolve the best FlatPress-adjusted timestamp for a remote Mastodon status.
-- `plugin_mastodon_remote_status_visibility()` — line 3342 — Return the normalized visibility of a remote Mastodon status.
-- `plugin_mastodon_remote_status_is_importable()` — line 3355 — Determine whether a remote Mastodon status may be imported.
-- `plugin_mastodon_comment_parent_fields()` — line 3367 — Return the comment fields that may contain a parent reference.
-- `plugin_mastodon_normalize_boolean_option()` — line 2220 — Normalize a boolean-like option value to the stored string representation.
-- `plugin_mastodon_normalize_comment_parent_id()` — line 3376 — Normalize a stored local comment parent identifier.
-- `plugin_mastodon_detect_local_comment_parent_id()` — line 3393 — Detect the local parent comment identifier from comment data.
-- `plugin_mastodon_resolve_comment_reply_target()` — line 3415 — Resolve the remote reply target for a local comment export.
-- `plugin_mastodon_list_local_comment_ids()` — line 3468 — Scan the FlatPress comment directory directly so local reply export is not blocked by stale comment-list caches.
+- `plugin_mastodon_timestamp_to_flatpress_time()` — line 816 — Convert a real Unix timestamp into FlatPress's offset-adjusted timestamp model.
+- `plugin_mastodon_timestamp_date_key()` — line 2362 — Convert a FlatPress-adjusted timestamp into a stable date key.
+- `plugin_mastodon_local_item_date_key()` — line 2376 — Determine the date key of a local FlatPress entry or comment.
+- `plugin_mastodon_remote_status_date_key()` — line 2396 — Determine the date key of a remote Mastodon status.
+- `plugin_mastodon_datetime_date_key()` — line 2422 — Normalize a stored date/datetime string to the sync-start date-key format.
+- `plugin_mastodon_date_matches_sync_start()` — line 2446 — Determine whether a content date passes the configured sync start date.
+- `plugin_mastodon_scheduled_window_start_date()` — line 2464 — Return the FlatPress-local date key that starts the automatic scheduled sync window.
+- `plugin_mastodon_date_matches_content_window()` — line 2481 — Combine the durable sync-start lower bound with the scheduled-run recent-content window.
+- `plugin_mastodon_local_item_matches_sync_start()` — line 2503 — Determine whether a local FlatPress item should be synchronized.
+- `plugin_mastodon_local_item_matches_content_window()` — line 2515 — Determine whether a local FlatPress item is inside the active content synchronization window.
+- `plugin_mastodon_remote_status_matches_sync_start()` — line 2525 — Determine whether a remote Mastodon status should be synchronized.
+- `plugin_mastodon_mapping_effective_date_key()` — line 2597 — Resolve the best date key available for a synchronized mapping.
+- `plugin_mastodon_mapping_matches_deletion_lookup_window()` — line 2638 — Decide whether an existing local mapping should receive a remote deletion lookup in the current scheduled or forced delete pass.
+- `plugin_mastodon_mapping_keys_after_cursor()` — line 2659 — Return sorted mapping keys after a saved deletion cursor so large delete passes can continue across runs.
+- `plugin_mastodon_remote_status_matches_content_window()` — line 2536 — Determine whether a remote Mastodon status is inside the active content synchronization window.
+- `plugin_mastodon_mapping_matches_sync_start()` — line 2547 — Determine whether a stored synchronization mapping still belongs to the active sync-start window.
+- `plugin_mastodon_parse_iso_datetime()` — line 3500 — Parse an ISO date/time string into FlatPress date format.
+- `plugin_mastodon_parse_iso_timestamp()` — line 3518 — Parse an ISO date/time value into a Unix timestamp.
+- `plugin_mastodon_remote_status_timestamp()` — line 3540 — Resolve the best FlatPress-adjusted timestamp for a remote Mastodon status.
+- `plugin_mastodon_remote_status_visibility()` — line 3559 — Return the normalized visibility of a remote Mastodon status.
+- `plugin_mastodon_remote_status_is_importable()` — line 3572 — Determine whether a remote Mastodon status may be imported.
+- `plugin_mastodon_comment_parent_fields()` — line 3584 — Return the comment fields that may contain a parent reference.
+- `plugin_mastodon_normalize_boolean_option()` — line 2256 — Normalize a boolean-like option value to the stored string representation.
+- `plugin_mastodon_normalize_comment_parent_id()` — line 3593 — Normalize a stored local comment parent identifier.
+- `plugin_mastodon_detect_local_comment_parent_id()` — line 3610 — Detect the local parent comment identifier from comment data.
+- `plugin_mastodon_resolve_comment_reply_target()` — line 3632 — Resolve the remote reply target for a local comment export.
+- `plugin_mastodon_list_local_comment_ids()` — line 3685 — Scan the FlatPress comment directory directly so local reply export is not blocked by stale comment-list caches.
 
 ## E. Text, URLs, language strings, tags, emojis, and BBCode/HTML conversion
 
-- `plugin_mastodon_guess_subject()` — line 3505 — Guess a subject line from imported plain text.
-- `plugin_mastodon_html_entity_decode()` — line 3547 — Decode HTML entities using the plugin defaults.
-- `plugin_mastodon_blog_base_url()` — line 3556 — Return the absolute base URL of the current FlatPress installation.
-- `plugin_mastodon_extract_url_token()` — line 3592 — Extract the URL token from a BBCode or attribute fragment.
-- `plugin_mastodon_absolute_url()` — line 3609 — Convert a URL or path into an absolute URL when possible.
-- `plugin_mastodon_lang_string()` — line 3651 — Return a localized plugin string or a provided fallback.
-- `plugin_mastodon_normalize_tag_list()` — line 3877 — Normalize a list of tag labels.
-- `plugin_mastodon_extend_time_limit()` — line 6105 — Refresh or raise the PHP execution time budget for long-running Mastodon work without lowering an existing higher or unlimited limit.
-- `plugin_mastodon_extract_flatpress_tags()` — line 3908 — Extract FlatPress Tag plugin labels from an entry body.
-- `plugin_mastodon_strip_flatpress_tag_bbcode()` — line 3933 — Remove Tag plugin BBCode blocks from entry content.
-- `plugin_mastodon_mastodon_hashtag_footer()` — line 3950 — Convert FlatPress tag labels into a Mastodon hashtag footer line.
-- `plugin_mastodon_remote_status_tags()` — line 3971 — Collect remote Mastodon tags from a status entity.
-- `plugin_mastodon_strip_trailing_mastodon_hashtag_footer()` — line 3998 — Remove a trailing Mastodon hashtag footer from imported plain text.
-- `plugin_mastodon_build_flatpress_tag_bbcode()` — line 4061 — Build Tag plugin BBCode from a list of remote Mastodon tags.
-- `plugin_mastodon_emoticon_entity_to_unicode()` — line 4074 — Convert an emoticon HTML entity into a Unicode character.
-- `plugin_mastodon_emoticon_map()` — line 4087 — Return the FlatPress emoticon-to-Unicode lookup map.
-- `plugin_mastodon_replace_emoticon_shortcodes_with_unicode()` — line 4141 — Replace FlatPress emoticon shortcodes with Unicode glyphs.
-- `plugin_mastodon_prepare_emoticons_for_mastodon()` — line 4156 — Convert active FlatPress emoticon shortcodes to standard Unicode emoji before Mastodon export.
-- `plugin_mastodon_replace_unicode_emoticons_with_shortcodes()` — line 4169 — Replace Unicode emoticons with FlatPress shortcodes.
-- `plugin_mastodon_is_public_host()` — line 4191 — Determine whether a host name resolves to a public endpoint.
-- `plugin_mastodon_public_url_for_mastodon()` — line 4214 — Return a Mastodon-safe public URL or an empty string.
-- `plugin_mastodon_plain_text_from_bbcode()` — line 4233 — Convert FlatPress BBCode into plain text for Mastodon export, removing complete AudioVideo player tags including optional description endtag content.
-- `plugin_mastodon_subject_line_is_noise()` — line 4277 — Determine whether an extracted line should be ignored as a subject.
-- `plugin_mastodon_domains_match()` — line 4305 — Determine whether two host names belong to the same domain family.
-- `plugin_mastodon_cleanup_imported_text()` — line 4319 — Clean imported text before saving it to FlatPress.
-- `plugin_mastodon_dom_children_to_flatpress()` — line 4373 — Convert DOM child nodes into FlatPress BBCode text.
-- `plugin_mastodon_dom_node_to_flatpress()` — line 4391 — Convert a single DOM node into FlatPress BBCode text.
-- `plugin_mastodon_public_entry_url()` — line 4500 — Return the public URL for a FlatPress entry.
-- `plugin_mastodon_public_comments_url()` — line 4527 — Return the public comments URL for a FlatPress entry.
-- `plugin_mastodon_public_comment_url()` — line 4555 — Return the public URL for a specific FlatPress comment.
-- `plugin_mastodon_mastodon_html_to_flatpress()` — line 4570 — Convert Mastodon HTML content into FlatPress BBCode.
-- `plugin_mastodon_flatpress_to_mastodon()` — line 4672 — Convert FlatPress content into Mastodon-ready plain text.
-- `plugin_mastodon_limit_text()` — line 4789 — Limit text to a maximum number of characters.
+- `plugin_mastodon_guess_subject()` — line 3722 — Guess a subject line from imported plain text.
+- `plugin_mastodon_html_entity_decode()` — line 3764 — Decode HTML entities using the plugin defaults.
+- `plugin_mastodon_blog_base_url()` — line 3773 — Return the absolute base URL of the current FlatPress installation.
+- `plugin_mastodon_extract_url_token()` — line 3809 — Extract the URL token from a BBCode or attribute fragment.
+- `plugin_mastodon_absolute_url()` — line 3826 — Convert a URL or path into an absolute URL when possible.
+- `plugin_mastodon_lang_string()` — line 3868 — Return a localized plugin string or a provided fallback.
+- `plugin_mastodon_normalize_tag_list()` — line 4094 — Normalize a list of tag labels.
+- `plugin_mastodon_extend_time_limit()` — line 6322 — Refresh or raise the PHP execution time budget for long-running Mastodon work without lowering an existing higher or unlimited limit.
+- `plugin_mastodon_extract_flatpress_tags()` — line 4125 — Extract FlatPress Tag plugin labels from an entry body.
+- `plugin_mastodon_strip_flatpress_tag_bbcode()` — line 4150 — Remove Tag plugin BBCode blocks from entry content.
+- `plugin_mastodon_mastodon_hashtag_footer()` — line 4167 — Convert FlatPress tag labels into a Mastodon hashtag footer line.
+- `plugin_mastodon_remote_status_tags()` — line 4188 — Collect remote Mastodon tags from a status entity.
+- `plugin_mastodon_strip_trailing_mastodon_hashtag_footer()` — line 4215 — Remove a trailing Mastodon hashtag footer from imported plain text.
+- `plugin_mastodon_build_flatpress_tag_bbcode()` — line 4278 — Build Tag plugin BBCode from a list of remote Mastodon tags.
+- `plugin_mastodon_emoticon_entity_to_unicode()` — line 4291 — Convert an emoticon HTML entity into a Unicode character.
+- `plugin_mastodon_emoticon_map()` — line 4304 — Return the FlatPress emoticon-to-Unicode lookup map.
+- `plugin_mastodon_replace_emoticon_shortcodes_with_unicode()` — line 4358 — Replace FlatPress emoticon shortcodes with Unicode glyphs.
+- `plugin_mastodon_prepare_emoticons_for_mastodon()` — line 4373 — Convert active FlatPress emoticon shortcodes to standard Unicode emoji before Mastodon export.
+- `plugin_mastodon_replace_unicode_emoticons_with_shortcodes()` — line 4386 — Replace Unicode emoticons with FlatPress shortcodes.
+- `plugin_mastodon_is_public_host()` — line 4408 — Determine whether a host name resolves to a public endpoint.
+- `plugin_mastodon_public_url_for_mastodon()` — line 4431 — Return a Mastodon-safe public URL or an empty string.
+- `plugin_mastodon_plain_text_from_bbcode()` — line 4450 — Convert FlatPress BBCode into plain text for Mastodon export, removing complete AudioVideo player tags including optional description endtag content.
+- `plugin_mastodon_subject_line_is_noise()` — line 4494 — Determine whether an extracted line should be ignored as a subject.
+- `plugin_mastodon_domains_match()` — line 4522 — Determine whether two host names belong to the same domain family.
+- `plugin_mastodon_cleanup_imported_text()` — line 4536 — Clean imported text before saving it to FlatPress.
+- `plugin_mastodon_dom_children_to_flatpress()` — line 4590 — Convert DOM child nodes into FlatPress BBCode text.
+- `plugin_mastodon_dom_node_to_flatpress()` — line 4608 — Convert a single DOM node into FlatPress BBCode text.
+- `plugin_mastodon_public_entry_url()` — line 4717 — Return the public URL for a FlatPress entry.
+- `plugin_mastodon_public_comments_url()` — line 4744 — Return the public comments URL for a FlatPress entry.
+- `plugin_mastodon_public_comment_url()` — line 4772 — Return the public URL for a specific FlatPress comment.
+- `plugin_mastodon_mastodon_html_to_flatpress()` — line 4787 — Convert Mastodon HTML content into FlatPress BBCode.
+- `plugin_mastodon_flatpress_to_mastodon()` — line 4889 — Convert FlatPress content into Mastodon-ready plain text.
+- `plugin_mastodon_limit_text()` — line 5006 — Limit text to a maximum number of characters.
 
 ## F. Local content access, media processing, hashing, and export ordering
 
-- `plugin_mastodon_entry_hash()` — line 4811 — Build a change-detection hash for a FlatPress entry.
-- `plugin_mastodon_comment_hash()` — line 4823 — Build a change-detection hash for a FlatPress comment.
-- `plugin_mastodon_remote_status_author_label()` — line 7815 — Build a readable author label for quoted Mastodon replies.
-- `plugin_mastodon_strip_leading_quote_block()` — line 7848 — Remove one leading BBCode quote block so imported reply quotes do not compound indefinitely.
-- `plugin_mastodon_imported_reply_quote_payload()` — line 7881 — Resolve the author and body that should be quoted for an imported Mastodon reply.
-- `plugin_mastodon_build_imported_reply_quote()` — line 7924 — Build the optional BBCode quote block for an imported Mastodon reply.
-- `plugin_mastodon_safe_path_component()` — line 4841 — Sanitize a string so it can be used as a path component.
-- `plugin_mastodon_safe_filename()` — line 4856 — Sanitize a file name for local storage.
-- `plugin_mastodon_media_relative_to_absolute()` — line 4892 — Resolve a FlatPress media path to an absolute file path.
-- `plugin_mastodon_media_prepare_directory()` — line 4905 — Ensure that a media directory exists.
-- `plugin_mastodon_media_delete_tree()` — line 4921 — Delete a directory tree used for imported media.
-- `plugin_mastodon_media_copy_tree()` — line 4948 — Copy a directory tree used for media synchronization.
-- `plugin_mastodon_bbcode_attr_escape()` — line 4986 — Escape a value for safe BBCode attribute usage.
-- `plugin_mastodon_bbcode_text_escape()` — line 4998 — Escape plain text embedded between BBCode tags, used for imported AudioVideo media descriptions.
-- `plugin_mastodon_media_guess_mime_type()` — line 5020 — Guess the MIME type of a local media file.
-- `plugin_mastodon_media_parse_tag_attributes()` — line 5242 — Parse key/value attributes from a FlatPress media tag.
-- `plugin_mastodon_media_description_from_bbcode_content()` — line 5273 — Normalize optional AudioVideo BBCode content into a Mastodon media description.
-- `plugin_mastodon_instance_supported_media_mime_types()` — line 5168 — Return the MIME types advertised by the configured Mastodon instance.
-- `plugin_mastodon_instance_media_size_limit()` — line 5188 — Return the configured byte-size limit for an image, video/GIFV, or audio upload.
-- `plugin_mastodon_validate_local_media_item()` — line 5215 — Validate one local media file against available instance MIME and byte-size limits before upload.
-- `plugin_mastodon_media_extract_default_path()` — line 5299 — Extract the default path parameter from FlatPress media BBCode such as `[img=...]`, `[gallery=...]`, `[audioplayer="..."]`, and `[videoplayer="..."]`.
-- `plugin_mastodon_add_local_media_item()` — line 5328 — Add one normalized local media item while deduplicating and enforcing an expected media family.
-- `plugin_mastodon_collect_local_entry_media()` — line 5377 — Collect local images, galleries, audio, video, optional AudioVideo endtag descriptions, and video poster thumbnails referenced by an entry.
-- `plugin_mastodon_prepare_entry_media_items()` — line 5515 — Normalize collected local media items into reusable path/description tuples.
-- `plugin_mastodon_entry_media_attachment_signature_from_items()` — line 5546 — Hash only the attachment identity of normalized media items.
-- `plugin_mastodon_entry_media_description_signature_from_items()` — line 5569 — Hash only the alt-text portion of normalized media items.
-- `plugin_mastodon_entry_media_signature()` — line 5588 — Build a combined attachment+description signature for media references contained in entry content.
-- `plugin_mastodon_remote_media_attachment_type()` — line 5605 — Normalize a Mastodon attachment type, including extension-based fallbacks for older or incomplete payloads.
-- `plugin_mastodon_remote_status_media_attachments()` — line 5632 — Extract supported image, audio, video, and GIFV attachments from a remote Mastodon status.
-- `plugin_mastodon_remote_status_image_attachments()` — line 5662 — Extract image attachments from a remote Mastodon status.
-- `plugin_mastodon_remote_media_source_url()` — line 5671 — Resolve the best downloadable source URL for a remote attachment.
-- `plugin_mastodon_remote_media_source_urls()` — line 5689 — Resolve direct-download fallback candidates for a remote attachment; audio/video/GIFV avoid `preview_url` as a file-source fallback, while images may use it.
-- `plugin_mastodon_remote_media_description()` — line 5711 — Resolve the best description for a remote attachment.
-- `plugin_mastodon_remote_media_focus()` — line 5725 — Normalize a Mastodon media focus string when present.
-- `plugin_mastodon_remote_media_descriptors_from_status()` — line 5742 — Extract reusable media descriptors (`id`, `description`, `focus`) from a Mastodon status payload.
-- `plugin_mastodon_remote_media_descriptors_from_media_ids()` — line 5773 — Build fallback reusable media descriptors from already-known IDs and local media items.
-- `plugin_mastodon_media_download()` — line 5840 — Download a remote media asset with an extended media-transfer timeout.
-- `plugin_mastodon_remote_download_basename()` — line 5854 — Build a safe local basename for a downloaded remote image, audio, video, GIFV, or poster.
-- `plugin_mastodon_store_remote_media_url()` — line 5884 — Download and persist one remote media URL.
-- `plugin_mastodon_build_imported_media_bbcode()` — line 5906 — Build FlatPress BBCode for imported remote media attachments: images become `[img]`/`[gallery]`, audio becomes `[audioplayer]`, and video/GIFV becomes `[videoplayer]` with imported optional description endtag text and an imported poster when available; alternate direct media URLs are retried before an attachment is skipped.
-- `plugin_mastodon_collect_entry_files()` — line 6873 — Collect entry files recursively from the FlatPress content tree.
-- `plugin_mastodon_local_item_timestamp()` — line 6900 — Resolve the best timestamp for a local FlatPress item.
-- `plugin_mastodon_compare_local_entries_for_export()` — line 6926 — Compare local FlatPress entries for Mastodon export order.
-- `plugin_mastodon_list_local_entries()` — line 6944 — List local FlatPress entry identifiers.
+- `plugin_mastodon_entry_hash()` — line 5028 — Build a change-detection hash for a FlatPress entry.
+- `plugin_mastodon_comment_hash()` — line 5040 — Build a change-detection hash for a FlatPress comment.
+- `plugin_mastodon_remote_status_author_label()` — line 8032 — Build a readable author label for quoted Mastodon replies.
+- `plugin_mastodon_strip_leading_quote_block()` — line 8065 — Remove one leading BBCode quote block so imported reply quotes do not compound indefinitely.
+- `plugin_mastodon_imported_reply_quote_payload()` — line 8098 — Resolve the author and body that should be quoted for an imported Mastodon reply.
+- `plugin_mastodon_build_imported_reply_quote()` — line 8141 — Build the optional BBCode quote block for an imported Mastodon reply.
+- `plugin_mastodon_safe_path_component()` — line 5058 — Sanitize a string so it can be used as a path component.
+- `plugin_mastodon_safe_filename()` — line 5073 — Sanitize a file name for local storage.
+- `plugin_mastodon_media_relative_to_absolute()` — line 5109 — Resolve a FlatPress media path to an absolute file path.
+- `plugin_mastodon_media_prepare_directory()` — line 5122 — Ensure that a media directory exists.
+- `plugin_mastodon_media_delete_tree()` — line 5138 — Delete a directory tree used for imported media.
+- `plugin_mastodon_media_copy_tree()` — line 5165 — Copy a directory tree used for media synchronization.
+- `plugin_mastodon_bbcode_attr_escape()` — line 5203 — Escape a value for safe BBCode attribute usage.
+- `plugin_mastodon_bbcode_text_escape()` — line 5215 — Escape plain text embedded between BBCode tags, used for imported AudioVideo media descriptions.
+- `plugin_mastodon_media_guess_mime_type()` — line 5237 — Guess the MIME type of a local media file.
+- `plugin_mastodon_media_parse_tag_attributes()` — line 5459 — Parse key/value attributes from a FlatPress media tag.
+- `plugin_mastodon_media_description_from_bbcode_content()` — line 5490 — Normalize optional AudioVideo BBCode content into a Mastodon media description.
+- `plugin_mastodon_instance_supported_media_mime_types()` — line 5385 — Return the MIME types advertised by the configured Mastodon instance.
+- `plugin_mastodon_instance_media_size_limit()` — line 5405 — Return the configured byte-size limit for an image, video/GIFV, or audio upload.
+- `plugin_mastodon_validate_local_media_item()` — line 5432 — Validate one local media file against available instance MIME and byte-size limits before upload.
+- `plugin_mastodon_media_extract_default_path()` — line 5516 — Extract the default path parameter from FlatPress media BBCode such as `[img=...]`, `[gallery=...]`, `[audioplayer="..."]`, and `[videoplayer="..."]`.
+- `plugin_mastodon_add_local_media_item()` — line 5545 — Add one normalized local media item while deduplicating and enforcing an expected media family.
+- `plugin_mastodon_collect_local_entry_media()` — line 5594 — Collect local images, galleries, audio, video, optional AudioVideo endtag descriptions, and video poster thumbnails referenced by an entry.
+- `plugin_mastodon_prepare_entry_media_items()` — line 5732 — Normalize collected local media items into reusable path/description tuples.
+- `plugin_mastodon_entry_media_attachment_signature_from_items()` — line 5763 — Hash only the attachment identity of normalized media items.
+- `plugin_mastodon_entry_media_description_signature_from_items()` — line 5786 — Hash only the alt-text portion of normalized media items.
+- `plugin_mastodon_entry_media_signature()` — line 5805 — Build a combined attachment+description signature for media references contained in entry content.
+- `plugin_mastodon_remote_media_attachment_type()` — line 5822 — Normalize a Mastodon attachment type, including extension-based fallbacks for older or incomplete payloads.
+- `plugin_mastodon_remote_status_media_attachments()` — line 5849 — Extract supported image, audio, video, and GIFV attachments from a remote Mastodon status.
+- `plugin_mastodon_remote_status_image_attachments()` — line 5879 — Extract image attachments from a remote Mastodon status.
+- `plugin_mastodon_remote_media_source_url()` — line 5888 — Resolve the best downloadable source URL for a remote attachment.
+- `plugin_mastodon_remote_media_source_urls()` — line 5906 — Resolve direct-download fallback candidates for a remote attachment; audio/video/GIFV avoid `preview_url` as a file-source fallback, while images may use it.
+- `plugin_mastodon_remote_media_description()` — line 5928 — Resolve the best description for a remote attachment.
+- `plugin_mastodon_remote_media_focus()` — line 5942 — Normalize a Mastodon media focus string when present.
+- `plugin_mastodon_remote_media_descriptors_from_status()` — line 5959 — Extract reusable media descriptors (`id`, `description`, `focus`) from a Mastodon status payload.
+- `plugin_mastodon_remote_media_descriptors_from_media_ids()` — line 5990 — Build fallback reusable media descriptors from already-known IDs and local media items.
+- `plugin_mastodon_media_download()` — line 6057 — Download a remote media asset with an extended media-transfer timeout.
+- `plugin_mastodon_remote_download_basename()` — line 6071 — Build a safe local basename for a downloaded remote image, audio, video, GIFV, or poster.
+- `plugin_mastodon_store_remote_media_url()` — line 6101 — Download and persist one remote media URL.
+- `plugin_mastodon_build_imported_media_bbcode()` — line 6123 — Build FlatPress BBCode for imported remote media attachments: images become `[img]`/`[gallery]`, audio becomes `[audioplayer]`, and video/GIFV becomes `[videoplayer]` with imported optional description endtag text and an imported poster when available; alternate direct media URLs are retried before an attachment is skipped.
+- `plugin_mastodon_collect_entry_files()` — line 7090 — Collect entry files recursively from the FlatPress content tree.
+- `plugin_mastodon_local_item_timestamp()` — line 7117 — Resolve the best timestamp for a local FlatPress item.
+- `plugin_mastodon_compare_local_entries_for_export()` — line 7143 — Compare local FlatPress entries for Mastodon export order.
+- `plugin_mastodon_list_local_entries()` — line 7161 — List local FlatPress entry identifiers.
 
 ## G. HTTP transport, PHP timeout budgeting, instance capability lookup, status-length budgeting, OAuth, Mastodon API calls, and media upload
 
-- `plugin_mastodon_extend_time_limit()` — line 6105 — Refresh or raise the PHP execution time budget for long-running Mastodon work without lowering an existing higher or unlimited limit.
-- `plugin_mastodon_instance_document()` — line 6136 — Load and cache the compact Mastodon instance document, preferring the saved FlatPress snapshot before APCu and live network fetches.
-- `plugin_mastodon_instance_version()` — line 6180 — Extract the human-readable Mastodon server version from the cached instance document.
-- `plugin_mastodon_instance_supports_status_media_attributes()` — line 6198 — Decide whether `PUT /api/v1/statuses/:id` may safely use `media_attributes` for in-place alt-text edits.
-- `plugin_mastodon_instance_configuration()` — line 6215 — Return the normalized `configuration` subtree from the cached Mastodon instance document.
-- `plugin_mastodon_instance_media_limit()` — line 6225 — Return the media attachment limit of the configured instance.
-- `plugin_mastodon_instance_media_description_limit()` — line 6238 — Return the media description length limit of the configured instance.
-- `plugin_mastodon_instance_url_reserved_length()` — line 6251 — Return the reserved Mastodon character budget used for each URL.
-- `plugin_mastodon_instance_registration_summary()` — line 8851 — Summarize the cached registration policy advertised by the instance for the admin diagnostics table.
-- `plugin_mastodon_admin_instance_info_rows()` — line 8877 — Build the localized admin-table rows from the cached instance-information snapshot without forcing another live request.
-- `plugin_mastodon_status_text_length()` — line 6265 — Calculate the Mastodon-visible status length with instance URL budgeting.
-- `plugin_mastodon_limit_status_text()` — line 6297 — Truncate status text using Mastodon URL-budget rules.
-- `plugin_mastodon_http_request_multipart()` — line 6376 — Perform a multipart HTTP request.
-- `plugin_mastodon_fetch_media_attachment()` — line 6509 — Fetch a single Mastodon media attachment by ID.
-- `plugin_mastodon_media_processing_attempts()` — line 6574 — Calculate media-type- and size-aware polling attempts for asynchronous Mastodon media processing.
-- `plugin_mastodon_media_transfer_timeout()` — line 6598 — Calculate longer upload transfer timeouts for audio/video/GIFV while keeping image uploads lighter.
-- `plugin_mastodon_wait_for_media_attachment()` — line 6618 — Poll an asynchronously processed Mastodon media attachment until it is ready or times out, including pending audio/video responses without `preview_url`.
-- `plugin_mastodon_upload_media_items()` — line 6667 — Upload local media items to Mastodon and collect the created media IDs; AudioVideo posters are sent as Mastodon `thumbnail` multipart fields for video uploads.
-- `plugin_mastodon_parse_http_response_headers()` — line 6981 — Parse raw HTTP response headers.
-- `plugin_mastodon_stream_context_request()` — line 7011 — Perform an HTTP request through a stream context fallback.
-- `plugin_mastodon_status_media_attributes()` — line 5807 — Build the `media_attributes` array used for in-place status edits of already attached media.
-- `plugin_mastodon_prepare_entry_media_sync_plan()` — line 6784 — Decide whether an entry should upload fresh media, reuse stored IDs, or reuse IDs plus `media_attributes`.
-- `plugin_mastodon_array_is_list()` — line 7051 — Detect whether a PHP array is a zero-based list that should use `[]` form-field notation.
-- `plugin_mastodon_array_contains_only_form_scalars()` — line 7071 — Detect whether a list can be serialized as repeated scalar `[]` fields.
-- `plugin_mastodon_http_build_query()` — line 7089 — Build an application/x-www-form-urlencoded query string, emitting Rack-compatible Mastodon array fields such as `media_ids[]` and nested `media_attributes[][description]`.
-- `plugin_mastodon_http_request()` — line 7145 — Perform an HTTP request using cURL or the stream fallback.
-- `plugin_mastodon_mastodon_api()` — line 7263 — Call the Mastodon API and return the raw HTTP response.
-- `plugin_mastodon_mastodon_json()` — line 7312 — Call the Mastodon API and decode a JSON response.
-- `plugin_mastodon_response_error_message()` — line 7327 — Extract the most useful error message from an API response.
-- `plugin_mastodon_oauth_legacy_scopes()` — line 534 — Return the legacy OAuth scope string used by older registrations.
-- `plugin_mastodon_oauth_profile_scopes()` — line 542 — Return the stricter scope string that uses `profile` for `verify_credentials`.
-- `plugin_mastodon_oauth_server_metadata()` — line 551 — Discover OAuth server metadata from `/.well-known/oauth-authorization-server`.
-- `plugin_mastodon_oauth_supported_scopes()` — line 570 — Extract the discoverable scope list from OAuth server metadata.
-- `plugin_mastodon_oauth_scope_supported()` — line 607 — Check whether the configured Mastodon instance supports a given OAuth scope.
-- `plugin_mastodon_oauth_preferred_scopes()` — line 628 — Prefer `profile` on current instances and fall back to `read:accounts` on older ones.
-- `plugin_mastodon_register_app()` — line 7356 — Register the FlatPress application on the configured Mastodon instance with the preferred discoverable scope set.
-- `plugin_mastodon_build_authorize_url()` — line 7379 — Build the OAuth authorization URL using the scopes that the registered app may safely request.
-- `plugin_mastodon_exchange_code_for_token()` — line 7399 — Exchange an OAuth authorization code for an access token using the same negotiated scope string.
-- `plugin_mastodon_verify_credentials()` — line 7429 — Verify the currently configured access token.
-- `plugin_mastodon_instance_character_limit()` — line 7446 — Return the status character limit of the configured instance.
-- `plugin_mastodon_fetch_account_statuses()` — line 7461 — Fetch statuses for the authenticated Mastodon account.
-- `plugin_mastodon_fetch_status_context()` — line 7508 — Fetch the conversation context for a Mastodon status.
-- `plugin_mastodon_fetch_status()` — line 7519 — Fetch a single Mastodon status.
-- `plugin_mastodon_delete_status()` — line 7530 — Delete a Mastodon status, including media when requested.
-- `plugin_mastodon_status_missing_response()` — line 7543 — Check whether an API response means that the referenced Mastodon status no longer exists.
-- `plugin_mastodon_create_status()` — line 7556 — Create a Mastodon status.
-- `plugin_mastodon_update_status()` — line 7583 — Update an existing Mastodon status.
+- `plugin_mastodon_extend_time_limit()` — line 6322 — Refresh or raise the PHP execution time budget for long-running Mastodon work without lowering an existing higher or unlimited limit.
+- `plugin_mastodon_instance_document()` — line 6353 — Load and cache the compact Mastodon instance document, preferring the saved FlatPress snapshot before APCu and live network fetches.
+- `plugin_mastodon_instance_version()` — line 6397 — Extract the human-readable Mastodon server version from the cached instance document.
+- `plugin_mastodon_instance_supports_status_media_attributes()` — line 6415 — Decide whether `PUT /api/v1/statuses/:id` may safely use `media_attributes` for in-place alt-text edits.
+- `plugin_mastodon_instance_configuration()` — line 6432 — Return the normalized `configuration` subtree from the cached Mastodon instance document.
+- `plugin_mastodon_instance_media_limit()` — line 6442 — Return the media attachment limit of the configured instance.
+- `plugin_mastodon_instance_media_description_limit()` — line 6455 — Return the media description length limit of the configured instance.
+- `plugin_mastodon_instance_url_reserved_length()` — line 6468 — Return the reserved Mastodon character budget used for each URL.
+- `plugin_mastodon_instance_registration_summary()` — line 9146 — Summarize the cached registration policy advertised by the instance for the admin diagnostics table.
+- `plugin_mastodon_admin_instance_info_rows()` — line 9172 — Build the localized admin-table rows from the cached instance-information snapshot without forcing another live request.
+- `plugin_mastodon_status_text_length()` — line 6482 — Calculate the Mastodon-visible status length with instance URL budgeting.
+- `plugin_mastodon_limit_status_text()` — line 6514 — Truncate status text using Mastodon URL-budget rules.
+- `plugin_mastodon_http_request_multipart()` — line 6593 — Perform a multipart HTTP request.
+- `plugin_mastodon_fetch_media_attachment()` — line 6726 — Fetch a single Mastodon media attachment by ID.
+- `plugin_mastodon_media_processing_attempts()` — line 6791 — Calculate media-type- and size-aware polling attempts for asynchronous Mastodon media processing.
+- `plugin_mastodon_media_transfer_timeout()` — line 6815 — Calculate longer upload transfer timeouts for audio/video/GIFV while keeping image uploads lighter.
+- `plugin_mastodon_wait_for_media_attachment()` — line 6835 — Poll an asynchronously processed Mastodon media attachment until it is ready or times out, including pending audio/video responses without `preview_url`.
+- `plugin_mastodon_upload_media_items()` — line 6884 — Upload local media items to Mastodon and collect the created media IDs; AudioVideo posters are sent as Mastodon `thumbnail` multipart fields for video uploads.
+- `plugin_mastodon_parse_http_response_headers()` — line 7198 — Parse raw HTTP response headers.
+- `plugin_mastodon_stream_context_request()` — line 7228 — Perform an HTTP request through a stream context fallback.
+- `plugin_mastodon_status_media_attributes()` — line 6024 — Build the `media_attributes` array used for in-place status edits of already attached media.
+- `plugin_mastodon_prepare_entry_media_sync_plan()` — line 7001 — Decide whether an entry should upload fresh media, reuse stored IDs, or reuse IDs plus `media_attributes`.
+- `plugin_mastodon_array_is_list()` — line 7268 — Detect whether a PHP array is a zero-based list that should use `[]` form-field notation.
+- `plugin_mastodon_array_contains_only_form_scalars()` — line 7288 — Detect whether a list can be serialized as repeated scalar `[]` fields.
+- `plugin_mastodon_http_build_query()` — line 7306 — Build an application/x-www-form-urlencoded query string, emitting Rack-compatible Mastodon array fields such as `media_ids[]` and nested `media_attributes[][description]`.
+- `plugin_mastodon_http_request()` — line 7362 — Perform an HTTP request using cURL or the stream fallback.
+- `plugin_mastodon_mastodon_api()` — line 7480 — Call the Mastodon API and return the raw HTTP response.
+- `plugin_mastodon_mastodon_json()` — line 7529 — Call the Mastodon API and decode a JSON response.
+- `plugin_mastodon_response_error_message()` — line 7544 — Extract the most useful error message from an API response.
+- `plugin_mastodon_oauth_legacy_scopes()` — line 542 — Return the legacy OAuth scope string used by older registrations.
+- `plugin_mastodon_oauth_profile_scopes()` — line 550 — Return the stricter scope string that uses `profile` for `verify_credentials`.
+- `plugin_mastodon_oauth_server_metadata()` — line 559 — Discover OAuth server metadata from `/.well-known/oauth-authorization-server`.
+- `plugin_mastodon_oauth_supported_scopes()` — line 578 — Extract the discoverable scope list from OAuth server metadata.
+- `plugin_mastodon_oauth_scope_supported()` — line 615 — Check whether the configured Mastodon instance supports a given OAuth scope.
+- `plugin_mastodon_oauth_preferred_scopes()` — line 636 — Prefer `profile` on current instances and fall back to `read:accounts` on older ones.
+- `plugin_mastodon_register_app()` — line 7573 — Register the FlatPress application on the configured Mastodon instance with the preferred discoverable scope set.
+- `plugin_mastodon_build_authorize_url()` — line 7596 — Build the OAuth authorization URL using the scopes that the registered app may safely request.
+- `plugin_mastodon_exchange_code_for_token()` — line 7616 — Exchange an OAuth authorization code for an access token using the same negotiated scope string.
+- `plugin_mastodon_verify_credentials()` — line 7646 — Verify the currently configured access token.
+- `plugin_mastodon_instance_character_limit()` — line 7663 — Return the status character limit of the configured instance.
+- `plugin_mastodon_fetch_account_statuses()` — line 7678 — Fetch statuses for the authenticated Mastodon account.
+- `plugin_mastodon_fetch_status_context()` — line 7725 — Fetch the conversation context for a Mastodon status.
+- `plugin_mastodon_fetch_status()` — line 7736 — Fetch a single Mastodon status.
+- `plugin_mastodon_delete_status()` — line 7747 — Delete a Mastodon status, including media when requested.
+- `plugin_mastodon_status_missing_response()` — line 7760 — Check whether an API response means that the referenced Mastodon status no longer exists.
+- `plugin_mastodon_create_status()` — line 7773 — Create a Mastodon status.
+- `plugin_mastodon_update_status()` — line 7800 — Update an existing Mastodon status.
 
 ## H. Import/export builders and synchronization orchestration
 
-- `plugin_mastodon_build_entry_status_text()` — line 7609 — Build the status body used when exporting a FlatPress entry.
-- `plugin_mastodon_build_comment_status_text()` — line 7677 — Build the status body used when exporting a FlatPress comment.
-- `plugin_mastodon_import_remote_entry()` — line 7715 — Import a remote Mastodon status into FlatPress as an entry.
-- `plugin_mastodon_import_remote_comment()` — line 7966 — Import a remote Mastodon reply into FlatPress as a comment while respecting comment tombstones, including early tombstones for locally deleted exported comments.
-- `plugin_mastodon_import_remote_context_descendants()` — line 8050 — Import remote Mastodon replies from a fetched thread context while blocking tombstoned parent/child replies.
-- `plugin_mastodon_old_thread_context_rotation_limit()` — line 8372 — Return the maximum number of older known threads checked for replies per content sync run.
-- `plugin_mastodon_collect_known_entry_context_targets()` — line 8388 — Collect known synchronized entry threads for optional rotating reply-context refreshes while respecting the synchronization start-date window.
-- `plugin_mastodon_sync_remote_to_local()` — line 8461 — Synchronize remote Mastodon content into FlatPress with the durable start-date lower bound, scheduled-run window, and optional old-thread rotation.
-- `plugin_mastodon_sync_local_to_remote()` — line 8528 — Synchronize local FlatPress content to Mastodon, including remote-sourced entry comment export, scheduled-run window filtering, dirty-queue processing, media-plan reuse of stored `media_ids`, and version-aware in-place alt-text updates.
-- `plugin_mastodon_run_deletion_sync()` — line 8460 — Reconcile mapped deletions between FlatPress and Mastodon in a separate follow-up request.
+- `plugin_mastodon_build_entry_status_text()` — line 7826 — Build the status body used when exporting a FlatPress entry.
+- `plugin_mastodon_build_comment_status_text()` — line 7894 — Build the status body used when exporting a FlatPress comment.
+- `plugin_mastodon_import_remote_entry()` — line 7932 — Import a remote Mastodon status into FlatPress as an entry.
+- `plugin_mastodon_import_remote_comment()` — line 8183 — Import a remote Mastodon reply into FlatPress as a comment while respecting comment tombstones, including early tombstones for locally deleted exported comments.
+- `plugin_mastodon_import_remote_context_descendants()` — line 8267 — Import remote Mastodon replies from a fetched thread context while blocking tombstoned parent/child replies.
+- `plugin_mastodon_old_thread_context_rotation_limit()` — line 8368 — Return the maximum number of known synchronized threads checked for replies per content sync run.
+- `plugin_mastodon_collect_known_entry_context_targets()` — line 8384 — Collect known synchronized entry threads for optional rotating reply-context refreshes while respecting the synchronization start-date window.
+- `plugin_mastodon_sync_remote_to_local()` — line 8457 — Synchronize remote Mastodon content into FlatPress with the durable start-date lower bound, scheduled-run window, and optional known-thread reply rotation.
+- `plugin_mastodon_sync_local_to_remote()` — line 8524 — Synchronize local FlatPress content to Mastodon, including remote-sourced entry comment export, scheduled-run window filtering, dirty-queue processing, media-plan reuse of stored `media_ids`, and version-aware in-place alt-text updates.
+- `plugin_mastodon_run_deletion_sync()` — line 8847 — Reconcile mapped deletions between FlatPress and Mastodon in a separate follow-up request, limiting scheduled remote existence lookups to the active window while cursoring large mapping sets.
 
 ## Recommended reading order for new developers
 
@@ -504,7 +508,7 @@ The current plugin version includes dedicated function groups for:
 - encrypted storage of sensitive configuration values
 - sync start date filtering plus a configurable 7/14/30-day automatic window for scheduled runs
 - persistent dirty queues that still synchronize changed older mapped entries and comments outside the scheduled window
-- optional rotating reply checks for older synchronized Mastodon threads
+- optional rotating reply checks for known synchronized Mastodon threads
 - status language export derived from the FlatPress locale configuration
 - optional remote overwrite of existing local content
 - optional import of already synchronized comments as entries
@@ -521,7 +525,7 @@ The current plugin version includes dedicated function groups for:
 - bounded PHP execution-budget refresh for long-running shared FlatPress requests
 - asynchronous media-upload readiness polling for `/api/v2/media`
 - deferred deletion synchronization in a follow-up web request
-- old-thread reply refresh during remote import
+- known-thread reply refresh during remote import
 - explicit export ordering so older local entries are posted before newer ones
 
 ## Maintenance notes
@@ -540,261 +544,261 @@ A change in one of these areas often requires corresponding updates in the simul
 ## Alphabetical appendix
 - `main()` — line 8999 — Keep the admin panel lifecycle compatible with FlatPress without extra processing.
 - `onsubmit()` — line 9003 — Process configuration saves, OAuth actions, including app registration and authorization-code exchange, and the manual synchronization trigger.
-- `plugin_mastodon_absolute_url()` — line 3609 — Convert a URL or path into an absolute URL when possible.
-- `plugin_mastodon_admin_assign()` — line 8949 — Assign plugin data to Smarty for the admin panel.
-- `plugin_mastodon_apcu_cache_key()` — line 1003 — Build the namespaced APCu key used by this plugin.
-- `plugin_mastodon_apcu_delete()` — line 1045 — Delete a value from APCu using the FlatPress namespace key builder.
-- `plugin_mastodon_apcu_enabled()` — line 994 — Check whether shared APCu caching is available for the plugin.
-- `plugin_mastodon_apcu_fetch()` — line 1017 — Fetch a value from APCu through the FlatPress namespace helper.
-- `plugin_mastodon_apcu_store()` — line 1032 — Store a value in APCu through the FlatPress namespace helper.
-- `plugin_mastodon_state_fallback_key()` — line 1057 — Return the APCu key used for the short-lived last-known-good state fallback.
-- `plugin_mastodon_state_fallback_store()` — line 1066 — Store a normalized runtime state in APCu for a 5-minute emergency fallback window.
-- `plugin_mastodon_state_fallback_read()` — line 1078 — Fetch the short-lived last-known-good state fallback from APCu.
-- `plugin_mastodon_sync_guard_kind()` — line 1096 — Normalize the cooldown guard kind.
-- `plugin_mastodon_sync_guard_apcu_key()` — line 1106 — Return the APCu key used for one sync cooldown guard.
-- `plugin_mastodon_sync_guard_entry_active()` — line 1116 — Check whether one cooldown guard entry is still active.
-- `plugin_mastodon_sync_guard_apcu_store()` — line 1127 — Store one cooldown guard in APCu.
-- `plugin_mastodon_sync_guard_file_read()` — line 1140 — Read and prune the file-backed cooldown guard.
-- `plugin_mastodon_sync_guard_file_write()` — line 1167 — Write the file-backed cooldown guard.
-- `plugin_mastodon_sync_guard_active()` — line 1188 — Check whether a recent scheduled content/deletion pass is still cooling down.
-- `plugin_mastodon_sync_guard_mark()` — line 1213 — Mark a 5-minute cooldown guard for a scheduled sync/deletion pass.
-- `plugin_mastodon_sync_guard_clear()` — line 1234 — Clear one sync cooldown guard.
-- `plugin_mastodon_rate_limit_default_budgets()` — line 1249 — Return conservative per-run Mastodon API budgets.
-- `plugin_mastodon_rate_limit_window_budgets()` — line 1273 — Return persistent cross-run Mastodon API window budgets.
-- `plugin_mastodon_rate_limit_window_config()` — line 1300 — Return the persistent window key, budget, TTL, and block reason for one request kind.
-- `plugin_mastodon_rate_limit_window_entry()` — line 1320 — Normalize one persistent rate-limit window entry and drop expired values.
-- `plugin_mastodon_rate_limit_window_read()` — line 1340 — Read and prune the persistent cross-run rate-limit windows.
-- `plugin_mastodon_rate_limit_window_write()` — line 1372 — Persist cross-run rate-limit windows with FlatPress file permissions.
-- `plugin_mastodon_rate_limit_window_acquire()` — line 1397 — Reserve one media-upload/delete/account-status-page slot from the persistent cross-run window.
-- `plugin_mastodon_rate_limit_window_clear()` — line 1446 — Clear persistent rate-limit windows for tests or recovery tooling.
-- `plugin_mastodon_rate_limit_guard_start()` — line 1458 — Start the per-run Mastodon API rate-limit guard.
-- `plugin_mastodon_rate_limit_guard_stop()` — line 1484 — Stop the per-run Mastodon API rate-limit guard while keeping its summary inspectable.
-- `plugin_mastodon_rate_limit_guard_active()` — line 1495 — Check whether the per-run Mastodon API guard is active.
-- `plugin_mastodon_rate_limit_guard_summary()` — line 1503 — Return the current per-run rate-limit guard summary.
-- `plugin_mastodon_rate_limit_headers()` — line 1512 — Normalize response headers for rate-limit checks.
-- `plugin_mastodon_rate_limit_request_kind()` — line 1533 — Classify Mastodon API requests as general, media upload, status deletion, or account-status paging.
-- `plugin_mastodon_rate_limit_block()` — line 1558 — Mark the current run as blocked by a rate-limit budget, persistent window, or Mastodon response and log the stop reason with budget counters once per run.
-- `plugin_mastodon_rate_limit_acquire()` — line 1602 — Reserve per-run and persistent window budget before a Mastodon API request proceeds.
-- `plugin_mastodon_rate_limit_observe_response()` — line 1651 — Update the guard from `X-RateLimit-*` headers and `429` responses.
-- `plugin_mastodon_rate_limit_blocked_reason()` — line 1675 — Return the current rate-limit block reason.
-- `plugin_mastodon_rate_limit_blocked_response()` — line 1687 — Build the synthetic `429` response used for locally blocked requests.
-- `plugin_mastodon_rate_limit_state_error()` — line 1703 — Return the rate-limit reason that should be written to synchronization state.
-- `plugin_mastodon_bbcode_attr_escape()` — line 4986 — Escape a value for safe BBCode attribute usage.
-- `plugin_mastodon_bbcode_text_escape()` — line 4998 — Escape plain text embedded between BBCode tags.
-- `plugin_mastodon_bbcode_plugin_active()` — line 3763 — Determine whether the BBCode plugin is active for the current FlatPress request.
-- `plugin_mastodon_blog_base_url()` — line 3556 — Return the absolute base URL of the current FlatPress installation.
-- `plugin_mastodon_build_authorize_url()` — line 7379 — Build the OAuth authorization URL using the scopes that the registered app may safely request.
-- `plugin_mastodon_build_comment_status_text()` — line 7677 — Build the status body used when exporting a FlatPress comment.
-- `plugin_mastodon_build_entry_status_text()` — line 7609 — Build the status body used when exporting a FlatPress entry.
-- `plugin_mastodon_build_flatpress_tag_bbcode()` — line 4061 — Build Tag plugin BBCode from a list of remote Mastodon tags.
-- `plugin_mastodon_build_imported_media_bbcode()` — line 5906 — Build FlatPress BBCode for imported remote media attachments, including AudioVideo optional description endtag text.
-- `plugin_mastodon_cleanup_imported_text()` — line 4319 — Clean imported text before saving it to FlatPress.
-- `plugin_mastodon_cleanup_uploaded_media()` — line 6538 — Best-effort cleanup for uploaded Mastodon media that never reached a final status request.
-- `plugin_mastodon_collect_entry_files()` — line 6873 — Collect entry files recursively from the FlatPress content tree.
-- `plugin_mastodon_collect_known_entry_context_targets()` — line 8154 — Collect known synchronized entry threads that should have their Mastodon reply context refreshed while respecting the synchronization start-date window.
-- `plugin_mastodon_collect_local_entry_media()` — line 5377 — Collect local images, galleries, AudioVideo media, optional AudioVideo endtag descriptions, and video poster thumbnails referenced by an entry.
-- `plugin_mastodon_comment_hash()` — line 4823 — Build a change-detection hash for a FlatPress comment.
-- `plugin_mastodon_comment_parent_fields()` — line 3367 — Return the comment fields that may contain a parent reference.
-- `plugin_mastodon_companion_plugins_status()` — line 3829 — Return the status of companion FlatPress plugins used for the full Mastodon feature set.
-- `plugin_mastodon_compare_local_entries_for_export()` — line 6926 — Compare local FlatPress entries for Mastodon export order.
-- `plugin_mastodon_configured_status_language()` — line 2157 — Read the configured FlatPress locale and return the Mastodon language code.
-- `plugin_mastodon_create_status()` — line 7556 — Create a Mastodon status.
-- `plugin_mastodon_date_matches_content_window()` — line 2485 — Combine the durable sync-start lower bound with the scheduled-run recent-content window.
-- `plugin_mastodon_date_matches_sync_start()` — line 2392 — Determine whether a content date passes the configured sync start date.
-- `plugin_mastodon_datetime_date_key()` — line 2368 — Normalize a stored date/datetime string to the sync-start date-key format.
-- `plugin_mastodon_default_content_stats()` — line 479 — Return the default counters for the last content synchronization.
-- `plugin_mastodon_default_deletion_stats()` — line 496 — Return the default counters for the last deletion synchronization.
-- `plugin_mastodon_default_options()` — line 98 — Return the default plugin option values.
-- `plugin_mastodon_default_state()` — line 509 — Return the default runtime state structure, including the targeted deletion-follow-up scope marker.
-- `plugin_mastodon_delete_media_attachment()` — line 6519 — Delete an uploaded Mastodon media attachment before it is attached to a final status.
-- `plugin_mastodon_delete_status()` — line 7530 — Delete a Mastodon status, including media when requested.
-- `plugin_mastodon_detect_local_comment_parent_id()` — line 3393 — Detect the local parent comment identifier from comment data.
-- `plugin_mastodon_dom_children_to_flatpress()` — line 4373 — Convert DOM child nodes into FlatPress BBCode text.
-- `plugin_mastodon_dom_node_to_flatpress()` — line 4391 — Convert a single DOM node into FlatPress BBCode text.
-- `plugin_mastodon_domains_match()` — line 4305 — Determine whether two host names belong to the same domain family.
-- `plugin_mastodon_emoticon_entity_to_unicode()` — line 4074 — Convert an emoticon HTML entity into a Unicode character.
-- `plugin_mastodon_emoticon_map()` — line 4087 — Return the FlatPress emoticon-to-Unicode lookup map.
-- `plugin_mastodon_emoticons_plugin_active()` — line 3814 — Determine whether the Emoticons plugin is active for the current FlatPress request.
-- `plugin_mastodon_enabled_plugin_state()` — line 3681 — Determine whether a FlatPress plugin is enabled in the centralized plugin configuration.
-- `plugin_mastodon_ensure_state_dir()` — line 2472 — Ensure that the plugin runtime directory exists.
-- `plugin_mastodon_entry_hash()` — line 4811 — Build a change-detection hash for a FlatPress entry.
-- `plugin_mastodon_entry_media_signature()` — line 5588 — Build a signature for media references contained in entry content.
-- `plugin_mastodon_exchange_code_for_token()` — line 7399 — Exchange an OAuth authorization code for an access token using the same negotiated scope string.
-- `plugin_mastodon_extend_time_limit()` — line 6105 — Refresh or raise the PHP execution time budget for long-running Mastodon work without lowering an existing higher or unlimited limit.
-- `plugin_mastodon_extract_flatpress_tags()` — line 3908 — Extract FlatPress Tag plugin labels from an entry body.
-- `plugin_mastodon_extract_url_token()` — line 3592 — Extract the URL token from a BBCode or attribute fragment.
-- `plugin_mastodon_fediverse_creator_value()` — line 2077 — Build the fediverse creator meta value.
-- `plugin_mastodon_fetch_account_statuses()` — line 7461 — Fetch statuses for the authenticated Mastodon account.
-- `plugin_mastodon_fetch_media_attachment()` — line 6509 — Fetch a single Mastodon media attachment by ID.
-- `plugin_mastodon_fetch_status()` — line 7519 — Fetch a single Mastodon status.
-- `plugin_mastodon_fetch_status_context()` — line 7508 — Fetch the conversation context for a Mastodon status.
-- `plugin_mastodon_file_prestat()` — line 1713 — Read a cheap file metadata snapshot for cache validation.
-- `plugin_mastodon_file_prestat_signature()` — line 1733 — Convert a file metadata snapshot into a stable cache signature.
-- `plugin_mastodon_flatpress_to_mastodon()` — line 4672 — Convert FlatPress content into Mastodon-ready plain text.
-- `plugin_mastodon_fp_config()` — line 722 — Return the FlatPress configuration, preferring the early-loaded core cache.
-- `plugin_mastodon_fp_config_value()` — line 758 — Read a nested FlatPress configuration value.
-- `plugin_mastodon_fp_timeoffset_seconds()` — line 774 — Return the configured FlatPress time offset in seconds for exact local admin-time conversion.
-- `plugin_mastodon_fp_timeoffset_label()` — line 794 — Format the configured FlatPress time offset as a UTC label for admin users.
-- `plugin_mastodon_sync_time_to_minutes()` — line 824 — Convert a normalized `HH:MM` sync-time value into minutes after midnight.
-- `plugin_mastodon_minutes_to_sync_time()` — line 835 — Convert minutes after midnight back into a normalized `HH:MM` sync-time value.
-- `plugin_mastodon_sync_time_utc_to_local()` — line 851 — Convert the stored UTC synchronization time to the FlatPress-local admin time.
-- `plugin_mastodon_sync_time_local_to_utc()` — line 862 — Convert the FlatPress-local admin synchronization time back to stored UTC.
-- `plugin_mastodon_format_admin_datetime()` — line 873 — Format stored UTC timestamps for the admin panel using FlatPress `timeoffset`, date format, and time format.
-- `plugin_mastodon_get_options()` — line 1744 — Load the saved plugin options and merge them with defaults.
-- `plugin_mastodon_guess_subject()` — line 3505 — Guess a subject line from imported plain text.
-- `plugin_mastodon_head()` — line 2095 — Print Mastodon profile metadata into the HTML head.
-- `plugin_mastodon_html_entity_decode()` — line 3547 — Decode HTML entities using the plugin defaults.
-- `plugin_mastodon_http_build_query()` — line 7089 — Build an application/x-www-form-urlencoded query string.
-- `plugin_mastodon_http_request()` — line 7145 — Perform an HTTP request using cURL or the stream fallback.
-- `plugin_mastodon_http_request_multipart()` — line 6376 — Perform a multipart HTTP request.
-- `plugin_mastodon_import_remote_comment()` — line 7966 — Import a remote Mastodon reply into FlatPress as a comment while respecting comment tombstones, including early tombstones for locally deleted exported comments.
-- `plugin_mastodon_import_remote_context_descendants()` — line 8050 — Import remote Mastodon replies from a fetched thread context while blocking tombstoned parent/child replies.
-- `plugin_mastodon_import_remote_entry()` — line 7715 — Import a remote Mastodon status into FlatPress as an entry.
-- `plugin_mastodon_instance_authority()` — line 2031 — Return the Mastodon instance authority used in fediverse creator metadata.
-- `plugin_mastodon_instance_character_limit()` — line 7446 — Return the status character limit of the configured instance.
-- `plugin_mastodon_instance_configuration()` — line 6215 — Load and cache the Mastodon instance configuration document.
-- `plugin_mastodon_instance_media_description_limit()` — line 6238 — Return the media description length limit of the configured instance.
-- `plugin_mastodon_instance_media_limit()` — line 6225 — Return the media attachment limit of the configured instance.
-- `plugin_mastodon_instance_url_reserved_length()` — line 6251 — Return the reserved Mastodon character budget used for each URL.
-- `plugin_mastodon_io_append_file()` — line 978 — Append to a file via the FlatPress I/O layer.
-- `plugin_mastodon_io_read_file()` — line 907 — Read a file through the FlatPress I/O layer when available.
-- `plugin_mastodon_io_read_file_uncached()` — line 920 — Read a file without FlatPress request-local caches.
-- `plugin_mastodon_file_permissions_mode()` — line 935 — Return the FlatPress `FILE_PERMISSIONS` mode used for plugin runtime files.
-- `plugin_mastodon_apply_file_permissions()` — line 944 — Apply FlatPress `FILE_PERMISSIONS` to a plugin runtime file.
-- `plugin_mastodon_io_write_file()` — line 957 — Write a file through the FlatPress I/O layer when available and enforce `FILE_PERMISSIONS` after successful writes.
-- `plugin_mastodon_is_public_host()` — line 4191 — Determine whether a host name resolves to a public endpoint.
-- `plugin_mastodon_lang_string()` — line 3651 — Return a localized plugin string or a provided fallback.
-- `plugin_mastodon_limit_status_text()` — line 6297 — Truncate status text using Mastodon URL-budget rules.
-- `plugin_mastodon_limit_text()` — line 4789 — Limit text to a maximum number of characters.
-- `plugin_mastodon_list_local_entries()` — line 6944 — List local FlatPress entry identifiers.
-- `plugin_mastodon_local_item_date_key()` — line 2322 — Determine the date key of a local FlatPress entry or comment.
-- `plugin_mastodon_local_item_matches_content_window()` — line 2519 — Determine whether a local FlatPress item is inside the active content synchronization window.
-- `plugin_mastodon_local_item_matches_sync_start()` — line 2411 — Determine whether a local FlatPress item should be synchronized.
-- `plugin_mastodon_local_item_timestamp()` — line 6900 — Resolve the best timestamp for a local FlatPress item.
-- `plugin_mastodon_log()` — line 2481 — Append a line to the plugin sync log.
-- `plugin_mastodon_mapping_matches_sync_start()` — line 2432 — Determine whether a stored synchronization mapping still belongs to the active sync-start window.
-- `plugin_mastodon_mastodon_api()` — line 7263 — Call the Mastodon API and return the raw HTTP response.
-- `plugin_mastodon_mastodon_hashtag_footer()` — line 3950 — Convert FlatPress tag labels into a Mastodon hashtag footer line.
-- `plugin_mastodon_mastodon_html_to_flatpress()` — line 4570 — Convert Mastodon HTML content into FlatPress BBCode.
-- `plugin_mastodon_mastodon_json()` — line 7312 — Call the Mastodon API and decode a JSON response.
-- `plugin_mastodon_maybe_sync()` — line 8787 — Run the scheduled synchronization when the current request is due.
-- `plugin_mastodon_media_copy_tree()` — line 4948 — Copy a directory tree used for media synchronization.
-- `plugin_mastodon_media_delete_tree()` — line 4921 — Delete a directory tree used for imported media.
-- `plugin_mastodon_media_download()` — line 5840 — Download a remote media asset.
-- `plugin_mastodon_media_guess_mime_type()` — line 5020 — Guess the MIME type of a local media file.
-- `plugin_mastodon_media_description_from_bbcode_content()` — line 5273 — Normalize optional AudioVideo BBCode content into a Mastodon media description.
-- `plugin_mastodon_media_parse_tag_attributes()` — line 5242 — Parse key/value attributes from a FlatPress media tag.
-- `plugin_mastodon_media_prepare_directory()` — line 4905 — Ensure that a media directory exists.
-- `plugin_mastodon_media_relative_to_absolute()` — line 4892 — Resolve a FlatPress media path to an absolute file path.
-- `plugin_mastodon_media_processing_attempts()` — line 6574 — Calculate media-type- and size-aware polling attempts for asynchronous Mastodon media processing.
-- `plugin_mastodon_media_transfer_timeout()` — line 6598 — Calculate media-type- and size-aware HTTP transfer timeouts for uploads.
-- `plugin_mastodon_normalize_comment_parent_id()` — line 3376 — Normalize a stored local comment parent identifier.
-- `plugin_mastodon_normalize_delete_sync_enabled()` — line 2290 — Normalize the toggle that enables or disables the follow-up deletion synchronization.
-- `plugin_mastodon_normalize_head_username()` — line 1992 — Normalize the configured Mastodon username for HTML head metadata.
-- `plugin_mastodon_normalize_import_synced_comments_as_entries()` — line 2254 — Normalize the toggle that allows importing already synchronized local comments as entries.
-- `plugin_mastodon_normalize_instance_url()` — line 1959 — Normalize the configured Mastodon instance URL.
-- `plugin_mastodon_normalize_old_thread_reply_check()` — line 2330 — Normalize the toggle that enables rotating context checks for old synchronized Mastodon threads.
-- `plugin_mastodon_normalize_scheduled_window_days()` — line 2235 — Normalize the configured 7/14/30-day automatic window for scheduled runs.
-- `plugin_mastodon_normalize_status_language()` — line 2135 — Normalize a FlatPress locale string to a Mastodon-compatible ISO 639-1 code.
-- `plugin_mastodon_normalize_sync_start_date()` — line 2194 — Normalize the configured sync start date.
-- `plugin_mastodon_normalize_sync_time()` — line 2177 — Normalize the configured daily sync time.
-- `plugin_mastodon_normalize_tag_list()` — line 3877 — Normalize a list of tag labels.
-- `plugin_mastodon_normalize_update_local_from_remote()` — line 2236 — Normalize the toggle that controls whether existing local content may be updated from remote Mastodon data.
-- `plugin_mastodon_oauth_legacy_scopes()` — line 534 — Return the legacy OAuth scope string used before scope discovery was added.
-- `plugin_mastodon_oauth_preferred_scopes()` — line 628 — Prefer the narrow `profile` scope on current instances and fall back to `read:accounts` on older ones.
-- `plugin_mastodon_oauth_profile_scopes()` — line 542 — Return the stricter OAuth scope string that uses `profile` for `verify_credentials`.
-- `plugin_mastodon_oauth_scope_supported()` — line 607 — Check whether the configured Mastodon instance advertises support for a specific OAuth scope.
-- `plugin_mastodon_oauth_scopes()` — line 645 — Return the OAuth scopes that the currently registered app may safely request.
-- `plugin_mastodon_oauth_server_metadata()` — line 551 — Discover and cache OAuth authorization-server metadata from `/.well-known/oauth-authorization-server`.
-- `plugin_mastodon_oauth_supported_scopes()` — line 570 — Parse the discoverable OAuth scopes supported by the configured Mastodon instance.
-- `plugin_mastodon_old_thread_context_rotation_limit()` — line 8372 — Return the maximum number of older known threads checked for replies per content sync run.
-- `plugin_mastodon_parse_http_response_headers()` — line 6981 — Parse raw HTTP response headers.
-- `plugin_mastodon_parse_iso_datetime()` — line 3283 — Parse an ISO date/time string into FlatPress date format.
-- `plugin_mastodon_parse_iso_timestamp()` — line 3301 — Parse an ISO date/time value into a Unix timestamp.
-- `plugin_mastodon_photoswipe_plugin_active()` — line 3780 — Determine whether the PhotoSwipe plugin is active for the current FlatPress request.
-- `plugin_mastodon_plain_text_from_bbcode()` — line 4233 — Convert FlatPress BBCode into plain text for Mastodon export, removing complete AudioVideo player tags including optional description content.
-- `plugin_mastodon_profile_url()` — line 2061 — Build the public Mastodon profile URL used for the rel-me link.
-- `plugin_mastodon_public_comment_url()` — line 4555 — Return the public URL for a specific FlatPress comment.
-- `plugin_mastodon_public_comments_url()` — line 4527 — Return the public comments URL for a FlatPress entry.
-- `plugin_mastodon_public_entry_url()` — line 4500 — Return the public URL for a FlatPress entry.
-- `plugin_mastodon_public_url_for_mastodon()` — line 4214 — Return a Mastodon-safe public URL or an empty string.
-- `plugin_mastodon_register_app()` — line 7356 — Register the FlatPress application on the configured Mastodon instance with the preferred discoverable scope set.
-- `plugin_mastodon_remote_media_description()` — line 5711 — Resolve the best description for a remote attachment.
-- `plugin_mastodon_remote_media_source_url()` — line 5671 — Resolve the best downloadable source URL for a remote attachment.
-- `plugin_mastodon_remote_media_source_urls()` — line 5689 — Resolve direct-download fallback candidates for a remote attachment.
-- `plugin_mastodon_remote_status_date_key()` — line 2342 — Determine the date key of a remote Mastodon status.
-- `plugin_mastodon_remote_status_image_attachments()` — line 5662 — Extract image attachments from a remote Mastodon status.
-- `plugin_mastodon_remote_status_is_importable()` — line 3355 — Determine whether a remote Mastodon status may be imported.
-- `plugin_mastodon_remote_status_matches_content_window()` — line 2540 — Determine whether a remote Mastodon status is inside the active content synchronization window.
-- `plugin_mastodon_remote_status_matches_sync_start()` — line 2421 — Determine whether a remote Mastodon status should be synchronized.
-- `plugin_mastodon_remote_status_tags()` — line 3971 — Collect remote Mastodon tags from a status entity.
-- `plugin_mastodon_remote_status_timestamp()` — line 3323 — Resolve the best FlatPress-adjusted timestamp for a remote Mastodon status.
-- `plugin_mastodon_remote_status_visibility()` — line 3342 — Return the normalized visibility of a remote Mastodon status.
-- `plugin_mastodon_replace_emoticon_shortcodes_with_unicode()` — line 4141 — Replace FlatPress emoticon shortcodes with Unicode glyphs.
-- `plugin_mastodon_replace_unicode_emoticons_with_shortcodes()` — line 4169 — Replace Unicode emoticons with FlatPress shortcodes.
-- `plugin_mastodon_resolve_comment_reply_target()` — line 3415 — Resolve the remote reply target for a local comment export.
-- `plugin_mastodon_list_local_comment_ids()` — line 3468 — Scan the FlatPress comment directory directly so local reply export is not blocked by stale comment-list caches.
-- `plugin_mastodon_response_error_message()` — line 7327 — Extract the most useful error message from an API response.
-- `plugin_mastodon_run_deletion_sync()` — line 8460 — Run the deferred deletion synchronization in a follow-up request after content sync completed.
-- `plugin_mastodon_run_sync()` — line 8707 — Run a full synchronization cycle.
-- `plugin_mastodon_runtime_cache_clear()` — line 707 — Clear one request-local plugin cache bucket or the complete cache.
-- `plugin_mastodon_runtime_cache_get()` — line 665 — Return a value from the request-local plugin cache.
-- `plugin_mastodon_runtime_cache_set()` — line 689 — Store a value in the request-local plugin cache.
-- `plugin_mastodon_safe_filename()` — line 4856 — Sanitize a file name for local storage.
-- `plugin_mastodon_safe_path_component()` — line 4841 — Sanitize a string so it can be used as a path component.
-- `plugin_mastodon_save_options()` — line 1799 — Persist plugin options.
-- `plugin_mastodon_scheduled_window_choices()` — line 2247 — Return the localized admin radio choices for the scheduled synchronization window.
-- `plugin_mastodon_scheduled_window_start_date()` — line 2468 — Return the FlatPress-local date key that starts the automatic scheduled sync window.
-- `plugin_mastodon_secret_decode()` — line 1928 — Decode a previously stored secret value.
-- `plugin_mastodon_secret_encode()` — line 1905 — Encode a secret value before storing it in the configuration.
-- `plugin_mastodon_secret_key()` — line 1888 — Build the encryption key used for stored secrets.
-- `plugin_mastodon_should_import_synced_comments_as_entries()` — line 2263 — Check whether a remote Mastodon status that is already mapped to a local FlatPress comment may also be imported as an entry.
-- `plugin_mastodon_should_check_old_thread_replies()` — line 2339 — Check whether old synchronized Mastodon threads should be checked for replies in rotating batches.
-- `plugin_mastodon_should_run_deletion_sync()` — line 2299 — Check whether the follow-up deletion synchronization is enabled.
-- `plugin_mastodon_should_update_local_from_remote()` — line 2245 — Check whether remote Mastodon updates may overwrite already existing local FlatPress content.
-- `plugin_mastodon_state_comment_key()` — line 2631 — Build the compound state key used for comment mappings.
-- `plugin_mastodon_state_get_comment_meta()` — line 2854 — Return mapping metadata for a local comment.
-- `plugin_mastodon_state_has_dirty_comment()` — line 2969 — Check whether a comment is queued for synchronization outside the scheduled window.
-- `plugin_mastodon_state_has_dirty_entry()` — line 2919 — Check whether an entry is queued for synchronization outside the scheduled window.
-- `plugin_mastodon_state_set_comment_tombstone()` — line 2868 — Store a tombstone that blocks stale re-imports of one deleted remote comment.
-- `plugin_mastodon_state_has_comment_tombstone()` — line 2888 — Check whether one remote Mastodon comment status was tombstoned locally.
-- `plugin_mastodon_protect_locally_deleted_exported_comments()` — line 2899 — Tombstone locally deleted exported FlatPress comment mappings before the next content sync can stale-reimport them from Mastodon thread context.
-- `plugin_mastodon_reattach_local_comment_to_entry_status()` — line 2945 — Remove a local imported reply parent link and reattach the surviving reply to the synchronized entry status after its remote parent reply disappeared.
-- `plugin_mastodon_state_remove_pending_comment_remote_recheck()` — line 3005 — Remove one pending descendant recheck marker.
-- `plugin_mastodon_state_get_pending_comment_remote_recheck()` — line 3019 — Return one pending descendant recheck marker.
-- `plugin_mastodon_state_set_pending_comment_remote_recheck()` — line 3034 — Mark one local comment for follow-up verification after an ancestor disappeared remotely.
-- `plugin_mastodon_state_set_deletions_pending()` — line 3060 — Persist whether another deletion follow-up request is pending, which scope it should run, and when it may start.
-- `plugin_mastodon_deletion_sync_due()` — line 3074 — Check whether the pending deletion synchronization may start after its persisted not-before timestamp.
-- `plugin_mastodon_state_has_comment_recheck_scope()` — line 3102 — Check whether the next deletion follow-up request should run only the targeted descendant recheck scope.
-- `plugin_mastodon_build_comment_remote_child_index()` — line 3111 — Build a direct-child index for mapped remote reply trees.
-- `plugin_mastodon_queue_comment_descendant_remote_rechecks()` — line 3139 — Queue only the direct mapped local children of one deleted remote comment for additional verification passes.
-- `plugin_mastodon_process_pending_comment_remote_rechecks()` — line 3178 — Process pending descendant rechecks breadth-first so deeper reply chains can converge within the same targeted follow-up request.
-- `plugin_mastodon_state_get_entry_meta()` — line 2759 — Return mapping metadata for a local entry.
-- `plugin_mastodon_normalize_deletions_pending_scope()` — line 2570 — Normalize the targeted deletion-follow-up scope marker.
-- `plugin_mastodon_state_normalize()` — line 2583 — Normalize a runtime state array and fill in missing keys.
-- `plugin_mastodon_state_read()` — line 2491 — Load the persisted runtime state from disk and fall back to the short-lived APCu state if the file is temporarily missing, empty, or invalid.
-- `plugin_mastodon_state_remove_dirty_comment()` — line 2955 — Remove a comment from the dirty queue.
-- `plugin_mastodon_state_remove_dirty_entry()` — line 2906 — Remove an entry from the dirty queue.
-- `plugin_mastodon_state_remove_comment_mapping()` — line 2738 — Remove the mapping between a local comment and a remote status.
-- `plugin_mastodon_state_remove_entry_mapping()` — line 2719 — Remove the mapping between a local entry and a remote status.
-- `plugin_mastodon_state_set_comment_mapping()` — line 2684 — Store the mapping between a local comment and a remote status.
-- `plugin_mastodon_state_set_dirty_comment()` — line 2932 — Add an older changed comment to the persistent dirty queue.
-- `plugin_mastodon_state_set_dirty_entry()` — line 2886 — Add an older changed entry to the persistent dirty queue.
-- `plugin_mastodon_state_set_entry_mapping()` — line 2646 — Store the mapping between a local entry and a remote status.
-- `plugin_mastodon_state_write()` — line 2545 — Persist the runtime state to disk and always refresh the short-lived APCu last-known-good state when possible.
-- `plugin_mastodon_status_missing_response()` — line 7543 — Check whether an API response means that the referenced Mastodon status no longer exists.
-- `plugin_mastodon_status_text_length()` — line 6265 — Calculate the Mastodon-visible status length with instance URL budgeting.
-- `plugin_mastodon_stream_context_request()` — line 7011 — Perform an HTTP request through a stream context fallback.
-- `plugin_mastodon_strip_flatpress_tag_bbcode()` — line 3933 — Remove Tag plugin BBCode blocks from entry content.
-- `plugin_mastodon_strip_trailing_mastodon_hashtag_footer()` — line 3998 — Remove a trailing Mastodon hashtag footer from imported plain text.
-- `plugin_mastodon_subject_line_is_noise()` — line 4277 — Determine whether an extracted line should be ignored as a subject.
-- `plugin_mastodon_sync_due()` — line 8685 — Determine whether the scheduled synchronization is currently due.
-- `plugin_mastodon_sync_local_to_remote()` — line 8257 — Synchronize local FlatPress content to Mastodon.
-- `plugin_mastodon_sync_remote_to_local()` — line 8192 — Synchronize remote Mastodon content into FlatPress.
-- `plugin_mastodon_tag_plugin_active()` — line 3746 — Determine whether the Tag plugin is active for the current FlatPress request.
-- `plugin_mastodon_timestamp_date_key()` — line 2308 — Convert a FlatPress-adjusted timestamp into a stable date key.
-- `plugin_mastodon_update_status()` — line 7583 — Update an existing Mastodon status.
-- `plugin_mastodon_upload_media_items()` — line 6667 — Upload local media items to Mastodon and collect the created media IDs.
-- `plugin_mastodon_verify_credentials()` — line 7429 — Verify the currently configured access token.
-- `plugin_mastodon_wait_for_media_attachment()` — line 6618 — Poll an asynchronously processed Mastodon media attachment until it is ready or times out.
+- `plugin_mastodon_absolute_url()` — line 3826 — Convert a URL or path into an absolute URL when possible.
+- `plugin_mastodon_admin_assign()` — line 9244 — Assign plugin data to Smarty for the admin panel.
+- `plugin_mastodon_apcu_cache_key()` — line 1011 — Build the namespaced APCu key used by this plugin.
+- `plugin_mastodon_apcu_delete()` — line 1053 — Delete a value from APCu using the FlatPress namespace key builder.
+- `plugin_mastodon_apcu_enabled()` — line 1002 — Check whether shared APCu caching is available for the plugin.
+- `plugin_mastodon_apcu_fetch()` — line 1025 — Fetch a value from APCu through the FlatPress namespace helper.
+- `plugin_mastodon_apcu_store()` — line 1040 — Store a value in APCu through the FlatPress namespace helper.
+- `plugin_mastodon_state_fallback_key()` — line 1065 — Return the APCu key used for the short-lived last-known-good state fallback.
+- `plugin_mastodon_state_fallback_store()` — line 1074 — Store a normalized runtime state in APCu for a 5-minute emergency fallback window.
+- `plugin_mastodon_state_fallback_read()` — line 1086 — Fetch the short-lived last-known-good state fallback from APCu.
+- `plugin_mastodon_sync_guard_kind()` — line 1104 — Normalize the cooldown guard kind.
+- `plugin_mastodon_sync_guard_apcu_key()` — line 1114 — Return the APCu key used for one sync cooldown guard.
+- `plugin_mastodon_sync_guard_entry_active()` — line 1124 — Check whether one cooldown guard entry is still active.
+- `plugin_mastodon_sync_guard_apcu_store()` — line 1135 — Store one cooldown guard in APCu.
+- `plugin_mastodon_sync_guard_file_read()` — line 1148 — Read and prune the file-backed cooldown guard.
+- `plugin_mastodon_sync_guard_file_write()` — line 1175 — Write the file-backed cooldown guard.
+- `plugin_mastodon_sync_guard_active()` — line 1196 — Check whether a recent scheduled content/deletion pass is still cooling down.
+- `plugin_mastodon_sync_guard_mark()` — line 1221 — Mark a 5-minute cooldown guard for a scheduled sync/deletion pass.
+- `plugin_mastodon_sync_guard_clear()` — line 1242 — Clear one sync cooldown guard.
+- `plugin_mastodon_rate_limit_default_budgets()` — line 1257 — Return conservative per-run Mastodon API budgets.
+- `plugin_mastodon_rate_limit_window_budgets()` — line 1281 — Return persistent cross-run Mastodon API window budgets.
+- `plugin_mastodon_rate_limit_window_config()` — line 1308 — Return the persistent window key, budget, TTL, and block reason for one request kind.
+- `plugin_mastodon_rate_limit_window_entry()` — line 1328 — Normalize one persistent rate-limit window entry and drop expired values.
+- `plugin_mastodon_rate_limit_window_read()` — line 1348 — Read and prune the persistent cross-run rate-limit windows.
+- `plugin_mastodon_rate_limit_window_write()` — line 1380 — Persist cross-run rate-limit windows with FlatPress file permissions.
+- `plugin_mastodon_rate_limit_window_acquire()` — line 1405 — Reserve one media-upload/delete/account-status-page slot from the persistent cross-run window.
+- `plugin_mastodon_rate_limit_window_clear()` — line 1454 — Clear persistent rate-limit windows for tests or recovery tooling.
+- `plugin_mastodon_rate_limit_guard_start()` — line 1466 — Start the per-run Mastodon API rate-limit guard.
+- `plugin_mastodon_rate_limit_guard_stop()` — line 1492 — Stop the per-run Mastodon API rate-limit guard while keeping its summary inspectable.
+- `plugin_mastodon_rate_limit_guard_active()` — line 1503 — Check whether the per-run Mastodon API guard is active.
+- `plugin_mastodon_rate_limit_guard_summary()` — line 1511 — Return the current per-run rate-limit guard summary.
+- `plugin_mastodon_rate_limit_headers()` — line 1520 — Normalize response headers for rate-limit checks.
+- `plugin_mastodon_rate_limit_request_kind()` — line 1541 — Classify Mastodon API requests as general, media upload, status deletion, or account-status paging.
+- `plugin_mastodon_rate_limit_block()` — line 1566 — Mark the current run as blocked by a rate-limit budget, persistent window, or Mastodon response and log the stop reason with budget counters once per run.
+- `plugin_mastodon_rate_limit_acquire()` — line 1610 — Reserve per-run and persistent window budget before a Mastodon API request proceeds.
+- `plugin_mastodon_rate_limit_observe_response()` — line 1655 — Update the guard from `X-RateLimit-*` headers and `429` responses.
+- `plugin_mastodon_rate_limit_blocked_reason()` — line 1679 — Return the current rate-limit block reason.
+- `plugin_mastodon_rate_limit_blocked_response()` — line 1691 — Build the synthetic `429` response used for locally blocked requests.
+- `plugin_mastodon_rate_limit_state_error()` — line 1707 — Return the rate-limit reason that should be written to synchronization state.
+- `plugin_mastodon_bbcode_attr_escape()` — line 5203 — Escape a value for safe BBCode attribute usage.
+- `plugin_mastodon_bbcode_text_escape()` — line 5215 — Escape plain text embedded between BBCode tags.
+- `plugin_mastodon_bbcode_plugin_active()` — line 3980 — Determine whether the BBCode plugin is active for the current FlatPress request.
+- `plugin_mastodon_blog_base_url()` — line 3773 — Return the absolute base URL of the current FlatPress installation.
+- `plugin_mastodon_build_authorize_url()` — line 7596 — Build the OAuth authorization URL using the scopes that the registered app may safely request.
+- `plugin_mastodon_build_comment_status_text()` — line 7894 — Build the status body used when exporting a FlatPress comment.
+- `plugin_mastodon_build_entry_status_text()` — line 7826 — Build the status body used when exporting a FlatPress entry.
+- `plugin_mastodon_build_flatpress_tag_bbcode()` — line 4278 — Build Tag plugin BBCode from a list of remote Mastodon tags.
+- `plugin_mastodon_build_imported_media_bbcode()` — line 6123 — Build FlatPress BBCode for imported remote media attachments, including AudioVideo optional description endtag text.
+- `plugin_mastodon_cleanup_imported_text()` — line 4536 — Clean imported text before saving it to FlatPress.
+- `plugin_mastodon_cleanup_uploaded_media()` — line 6755 — Best-effort cleanup for uploaded Mastodon media that never reached a final status request.
+- `plugin_mastodon_collect_entry_files()` — line 7090 — Collect entry files recursively from the FlatPress content tree.
+- `plugin_mastodon_collect_known_entry_context_targets()` — line 8384 — Collect known synchronized entry threads that should have their Mastodon reply context refreshed while respecting the synchronization start-date window.
+- `plugin_mastodon_collect_local_entry_media()` — line 5594 — Collect local images, galleries, AudioVideo media, optional AudioVideo endtag descriptions, and video poster thumbnails referenced by an entry.
+- `plugin_mastodon_comment_hash()` — line 5040 — Build a change-detection hash for a FlatPress comment.
+- `plugin_mastodon_comment_parent_fields()` — line 3584 — Return the comment fields that may contain a parent reference.
+- `plugin_mastodon_companion_plugins_status()` — line 4046 — Return the status of companion FlatPress plugins used for the full Mastodon feature set.
+- `plugin_mastodon_compare_local_entries_for_export()` — line 7143 — Compare local FlatPress entries for Mastodon export order.
+- `plugin_mastodon_configured_status_language()` — line 2168 — Read the configured FlatPress locale and return the Mastodon language code.
+- `plugin_mastodon_create_status()` — line 7773 — Create a Mastodon status.
+- `plugin_mastodon_date_matches_content_window()` — line 2481 — Combine the durable sync-start lower bound with the scheduled-run recent-content window.
+- `plugin_mastodon_date_matches_sync_start()` — line 2446 — Determine whether a content date passes the configured sync start date.
+- `plugin_mastodon_datetime_date_key()` — line 2422 — Normalize a stored date/datetime string to the sync-start date-key format.
+- `plugin_mastodon_default_content_stats()` — line 484 — Return the default counters for the last content synchronization.
+- `plugin_mastodon_default_deletion_stats()` — line 501 — Return the default counters for the last deletion synchronization.
+- `plugin_mastodon_default_options()` — line 101 — Return the default plugin option values.
+- `plugin_mastodon_default_state()` — line 514 — Return the default runtime state structure, including the targeted deletion-follow-up scope marker and deletion progress cursors.
+- `plugin_mastodon_delete_media_attachment()` — line 6736 — Delete an uploaded Mastodon media attachment before it is attached to a final status.
+- `plugin_mastodon_delete_status()` — line 7747 — Delete a Mastodon status, including media when requested.
+- `plugin_mastodon_detect_local_comment_parent_id()` — line 3610 — Detect the local parent comment identifier from comment data.
+- `plugin_mastodon_dom_children_to_flatpress()` — line 4590 — Convert DOM child nodes into FlatPress BBCode text.
+- `plugin_mastodon_dom_node_to_flatpress()` — line 4608 — Convert a single DOM node into FlatPress BBCode text.
+- `plugin_mastodon_domains_match()` — line 4522 — Determine whether two host names belong to the same domain family.
+- `plugin_mastodon_emoticon_entity_to_unicode()` — line 4291 — Convert an emoticon HTML entity into a Unicode character.
+- `plugin_mastodon_emoticon_map()` — line 4304 — Return the FlatPress emoticon-to-Unicode lookup map.
+- `plugin_mastodon_emoticons_plugin_active()` — line 4031 — Determine whether the Emoticons plugin is active for the current FlatPress request.
+- `plugin_mastodon_enabled_plugin_state()` — line 3898 — Determine whether a FlatPress plugin is enabled in the centralized plugin configuration.
+- `plugin_mastodon_ensure_state_dir()` — line 2587 — Ensure that the plugin runtime directory exists.
+- `plugin_mastodon_entry_hash()` — line 5028 — Build a change-detection hash for a FlatPress entry.
+- `plugin_mastodon_entry_media_signature()` — line 5805 — Build a signature for media references contained in entry content.
+- `plugin_mastodon_exchange_code_for_token()` — line 7616 — Exchange an OAuth authorization code for an access token using the same negotiated scope string.
+- `plugin_mastodon_extend_time_limit()` — line 6322 — Refresh or raise the PHP execution time budget for long-running Mastodon work without lowering an existing higher or unlimited limit.
+- `plugin_mastodon_extract_flatpress_tags()` — line 4125 — Extract FlatPress Tag plugin labels from an entry body.
+- `plugin_mastodon_extract_url_token()` — line 3809 — Extract the URL token from a BBCode or attribute fragment.
+- `plugin_mastodon_fediverse_creator_value()` — line 2088 — Build the fediverse creator meta value.
+- `plugin_mastodon_fetch_account_statuses()` — line 7678 — Fetch statuses for the authenticated Mastodon account.
+- `plugin_mastodon_fetch_media_attachment()` — line 6726 — Fetch a single Mastodon media attachment by ID.
+- `plugin_mastodon_fetch_status()` — line 7736 — Fetch a single Mastodon status.
+- `plugin_mastodon_fetch_status_context()` — line 7725 — Fetch the conversation context for a Mastodon status.
+- `plugin_mastodon_file_prestat()` — line 1717 — Read a cheap file metadata snapshot for cache validation.
+- `plugin_mastodon_file_prestat_signature()` — line 1737 — Convert a file metadata snapshot into a stable cache signature.
+- `plugin_mastodon_flatpress_to_mastodon()` — line 4889 — Convert FlatPress content into Mastodon-ready plain text.
+- `plugin_mastodon_fp_config()` — line 730 — Return the FlatPress configuration, preferring the early-loaded core cache.
+- `plugin_mastodon_fp_config_value()` — line 766 — Read a nested FlatPress configuration value.
+- `plugin_mastodon_fp_timeoffset_seconds()` — line 782 — Return the configured FlatPress time offset in seconds for exact local admin-time conversion.
+- `plugin_mastodon_fp_timeoffset_label()` — line 802 — Format the configured FlatPress time offset as a UTC label for admin users.
+- `plugin_mastodon_sync_time_to_minutes()` — line 832 — Convert a normalized `HH:MM` sync-time value into minutes after midnight.
+- `plugin_mastodon_minutes_to_sync_time()` — line 843 — Convert minutes after midnight back into a normalized `HH:MM` sync-time value.
+- `plugin_mastodon_sync_time_utc_to_local()` — line 859 — Convert the stored UTC synchronization time to the FlatPress-local admin time.
+- `plugin_mastodon_sync_time_local_to_utc()` — line 870 — Convert the FlatPress-local admin synchronization time back to stored UTC.
+- `plugin_mastodon_format_admin_datetime()` — line 881 — Format stored UTC timestamps for the admin panel using FlatPress `timeoffset`, date format, and time format.
+- `plugin_mastodon_get_options()` — line 1748 — Load the saved plugin options and merge them with defaults.
+- `plugin_mastodon_guess_subject()` — line 3722 — Guess a subject line from imported plain text.
+- `plugin_mastodon_head()` — line 2106 — Print Mastodon profile metadata into the HTML head.
+- `plugin_mastodon_html_entity_decode()` — line 3764 — Decode HTML entities using the plugin defaults.
+- `plugin_mastodon_http_build_query()` — line 7306 — Build an application/x-www-form-urlencoded query string.
+- `plugin_mastodon_http_request()` — line 7362 — Perform an HTTP request using cURL or the stream fallback.
+- `plugin_mastodon_http_request_multipart()` — line 6593 — Perform a multipart HTTP request.
+- `plugin_mastodon_import_remote_comment()` — line 8183 — Import a remote Mastodon reply into FlatPress as a comment while respecting comment tombstones, including early tombstones for locally deleted exported comments.
+- `plugin_mastodon_import_remote_context_descendants()` — line 8267 — Import remote Mastodon replies from a fetched thread context while blocking tombstoned parent/child replies.
+- `plugin_mastodon_import_remote_entry()` — line 7932 — Import a remote Mastodon status into FlatPress as an entry.
+- `plugin_mastodon_instance_authority()` — line 2042 — Return the Mastodon instance authority used in fediverse creator metadata.
+- `plugin_mastodon_instance_character_limit()` — line 7663 — Return the status character limit of the configured instance.
+- `plugin_mastodon_instance_configuration()` — line 6432 — Load and cache the Mastodon instance configuration document.
+- `plugin_mastodon_instance_media_description_limit()` — line 6455 — Return the media description length limit of the configured instance.
+- `plugin_mastodon_instance_media_limit()` — line 6442 — Return the media attachment limit of the configured instance.
+- `plugin_mastodon_instance_url_reserved_length()` — line 6468 — Return the reserved Mastodon character budget used for each URL.
+- `plugin_mastodon_io_append_file()` — line 986 — Append to a file via the FlatPress I/O layer.
+- `plugin_mastodon_io_read_file()` — line 915 — Read a file through the FlatPress I/O layer when available.
+- `plugin_mastodon_io_read_file_uncached()` — line 928 — Read a file without FlatPress request-local caches.
+- `plugin_mastodon_file_permissions_mode()` — line 943 — Return the FlatPress `FILE_PERMISSIONS` mode used for plugin runtime files.
+- `plugin_mastodon_apply_file_permissions()` — line 952 — Apply FlatPress `FILE_PERMISSIONS` to a plugin runtime file.
+- `plugin_mastodon_io_write_file()` — line 965 — Write a file through the FlatPress I/O layer when available and enforce `FILE_PERMISSIONS` after successful writes.
+- `plugin_mastodon_is_public_host()` — line 4408 — Determine whether a host name resolves to a public endpoint.
+- `plugin_mastodon_lang_string()` — line 3868 — Return a localized plugin string or a provided fallback.
+- `plugin_mastodon_limit_status_text()` — line 6514 — Truncate status text using Mastodon URL-budget rules.
+- `plugin_mastodon_limit_text()` — line 5006 — Limit text to a maximum number of characters.
+- `plugin_mastodon_list_local_entries()` — line 7161 — List local FlatPress entry identifiers.
+- `plugin_mastodon_local_item_date_key()` — line 2376 — Determine the date key of a local FlatPress entry or comment.
+- `plugin_mastodon_local_item_matches_content_window()` — line 2515 — Determine whether a local FlatPress item is inside the active content synchronization window.
+- `plugin_mastodon_local_item_matches_sync_start()` — line 2503 — Determine whether a local FlatPress item should be synchronized.
+- `plugin_mastodon_local_item_timestamp()` — line 7117 — Resolve the best timestamp for a local FlatPress item.
+- `plugin_mastodon_log()` — line 2596 — Append a line to the plugin sync log.
+- `plugin_mastodon_mapping_matches_sync_start()` — line 2547 — Determine whether a stored synchronization mapping still belongs to the active sync-start window.
+- `plugin_mastodon_mastodon_api()` — line 7480 — Call the Mastodon API and return the raw HTTP response.
+- `plugin_mastodon_mastodon_hashtag_footer()` — line 4167 — Convert FlatPress tag labels into a Mastodon hashtag footer line.
+- `plugin_mastodon_mastodon_html_to_flatpress()` — line 4787 — Convert Mastodon HTML content into FlatPress BBCode.
+- `plugin_mastodon_mastodon_json()` — line 7529 — Call the Mastodon API and decode a JSON response.
+- `plugin_mastodon_maybe_sync()` — line 9239 — Run the scheduled synchronization when the current request is due.
+- `plugin_mastodon_media_copy_tree()` — line 5165 — Copy a directory tree used for media synchronization.
+- `plugin_mastodon_media_delete_tree()` — line 5138 — Delete a directory tree used for imported media.
+- `plugin_mastodon_media_download()` — line 6057 — Download a remote media asset.
+- `plugin_mastodon_media_guess_mime_type()` — line 5237 — Guess the MIME type of a local media file.
+- `plugin_mastodon_media_description_from_bbcode_content()` — line 5490 — Normalize optional AudioVideo BBCode content into a Mastodon media description.
+- `plugin_mastodon_media_parse_tag_attributes()` — line 5459 — Parse key/value attributes from a FlatPress media tag.
+- `plugin_mastodon_media_prepare_directory()` — line 5122 — Ensure that a media directory exists.
+- `plugin_mastodon_media_relative_to_absolute()` — line 5109 — Resolve a FlatPress media path to an absolute file path.
+- `plugin_mastodon_media_processing_attempts()` — line 6791 — Calculate media-type- and size-aware polling attempts for asynchronous Mastodon media processing.
+- `plugin_mastodon_media_transfer_timeout()` — line 6815 — Calculate media-type- and size-aware HTTP transfer timeouts for uploads.
+- `plugin_mastodon_normalize_comment_parent_id()` — line 3593 — Normalize a stored local comment parent identifier.
+- `plugin_mastodon_normalize_delete_sync_enabled()` — line 2344 — Normalize the toggle that enables or disables the follow-up deletion synchronization.
+- `plugin_mastodon_normalize_head_username()` — line 2003 — Normalize the configured Mastodon username for HTML head metadata.
+- `plugin_mastodon_normalize_import_synced_comments_as_entries()` — line 2290 — Normalize the toggle that allows importing already synchronized local comments as entries.
+- `plugin_mastodon_normalize_instance_url()` — line 1970 — Normalize the configured Mastodon instance URL.
+- `plugin_mastodon_normalize_old_thread_reply_check()` — line 2326 — Normalize the toggle that enables rotating context checks for known synchronized Mastodon threads.
+- `plugin_mastodon_normalize_scheduled_window_days()` — line 2231 — Normalize the configured 7/14/30-day automatic window for scheduled runs.
+- `plugin_mastodon_normalize_status_language()` — line 2146 — Normalize a FlatPress locale string to a Mastodon-compatible ISO 639-1 code.
+- `plugin_mastodon_normalize_sync_start_date()` — line 2205 — Normalize the configured sync start date.
+- `plugin_mastodon_normalize_sync_time()` — line 2188 — Normalize the configured daily sync time.
+- `plugin_mastodon_normalize_tag_list()` — line 4094 — Normalize a list of tag labels.
+- `plugin_mastodon_normalize_update_local_from_remote()` — line 2272 — Normalize the toggle that controls whether existing local content may be updated from remote Mastodon data.
+- `plugin_mastodon_oauth_legacy_scopes()` — line 542 — Return the legacy OAuth scope string used before scope discovery was added.
+- `plugin_mastodon_oauth_preferred_scopes()` — line 636 — Prefer the narrow `profile` scope on current instances and fall back to `read:accounts` on older ones.
+- `plugin_mastodon_oauth_profile_scopes()` — line 550 — Return the stricter OAuth scope string that uses `profile` for `verify_credentials`.
+- `plugin_mastodon_oauth_scope_supported()` — line 615 — Check whether the configured Mastodon instance advertises support for a specific OAuth scope.
+- `plugin_mastodon_oauth_scopes()` — line 653 — Return the OAuth scopes that the currently registered app may safely request.
+- `plugin_mastodon_oauth_server_metadata()` — line 559 — Discover and cache OAuth authorization-server metadata from `/.well-known/oauth-authorization-server`.
+- `plugin_mastodon_oauth_supported_scopes()` — line 578 — Parse the discoverable OAuth scopes supported by the configured Mastodon instance.
+- `plugin_mastodon_old_thread_context_rotation_limit()` — line 8368 — Return the maximum number of known synchronized threads checked for replies per content sync run.
+- `plugin_mastodon_parse_http_response_headers()` — line 7198 — Parse raw HTTP response headers.
+- `plugin_mastodon_parse_iso_datetime()` — line 3500 — Parse an ISO date/time string into FlatPress date format.
+- `plugin_mastodon_parse_iso_timestamp()` — line 3518 — Parse an ISO date/time value into a Unix timestamp.
+- `plugin_mastodon_photoswipe_plugin_active()` — line 3997 — Determine whether the PhotoSwipe plugin is active for the current FlatPress request.
+- `plugin_mastodon_plain_text_from_bbcode()` — line 4450 — Convert FlatPress BBCode into plain text for Mastodon export, removing complete AudioVideo player tags including optional description content.
+- `plugin_mastodon_profile_url()` — line 2072 — Build the public Mastodon profile URL used for the rel-me link.
+- `plugin_mastodon_public_comment_url()` — line 4772 — Return the public URL for a specific FlatPress comment.
+- `plugin_mastodon_public_comments_url()` — line 4744 — Return the public comments URL for a FlatPress entry.
+- `plugin_mastodon_public_entry_url()` — line 4717 — Return the public URL for a FlatPress entry.
+- `plugin_mastodon_public_url_for_mastodon()` — line 4431 — Return a Mastodon-safe public URL or an empty string.
+- `plugin_mastodon_register_app()` — line 7573 — Register the FlatPress application on the configured Mastodon instance with the preferred discoverable scope set.
+- `plugin_mastodon_remote_media_description()` — line 5928 — Resolve the best description for a remote attachment.
+- `plugin_mastodon_remote_media_source_url()` — line 5888 — Resolve the best downloadable source URL for a remote attachment.
+- `plugin_mastodon_remote_media_source_urls()` — line 5906 — Resolve direct-download fallback candidates for a remote attachment.
+- `plugin_mastodon_remote_status_date_key()` — line 2396 — Determine the date key of a remote Mastodon status.
+- `plugin_mastodon_remote_status_image_attachments()` — line 5879 — Extract image attachments from a remote Mastodon status.
+- `plugin_mastodon_remote_status_is_importable()` — line 3572 — Determine whether a remote Mastodon status may be imported.
+- `plugin_mastodon_remote_status_matches_content_window()` — line 2536 — Determine whether a remote Mastodon status is inside the active content synchronization window.
+- `plugin_mastodon_remote_status_matches_sync_start()` — line 2525 — Determine whether a remote Mastodon status should be synchronized.
+- `plugin_mastodon_remote_status_tags()` — line 4188 — Collect remote Mastodon tags from a status entity.
+- `plugin_mastodon_remote_status_timestamp()` — line 3540 — Resolve the best FlatPress-adjusted timestamp for a remote Mastodon status.
+- `plugin_mastodon_remote_status_visibility()` — line 3559 — Return the normalized visibility of a remote Mastodon status.
+- `plugin_mastodon_replace_emoticon_shortcodes_with_unicode()` — line 4358 — Replace FlatPress emoticon shortcodes with Unicode glyphs.
+- `plugin_mastodon_replace_unicode_emoticons_with_shortcodes()` — line 4386 — Replace Unicode emoticons with FlatPress shortcodes.
+- `plugin_mastodon_resolve_comment_reply_target()` — line 3632 — Resolve the remote reply target for a local comment export.
+- `plugin_mastodon_list_local_comment_ids()` — line 3685 — Scan the FlatPress comment directory directly so local reply export is not blocked by stale comment-list caches.
+- `plugin_mastodon_response_error_message()` — line 7544 — Extract the most useful error message from an API response.
+- `plugin_mastodon_run_deletion_sync()` — line 8847 — Run the deferred deletion synchronization in a follow-up request after content sync completed, with scheduled-window-limited remote existence lookups and progress cursors.
+- `plugin_mastodon_run_sync()` — line 9159 — Run a full synchronization cycle.
+- `plugin_mastodon_runtime_cache_clear()` — line 715 — Clear one request-local plugin cache bucket or the complete cache.
+- `plugin_mastodon_runtime_cache_get()` — line 673 — Return a value from the request-local plugin cache.
+- `plugin_mastodon_runtime_cache_set()` — line 697 — Store a value in the request-local plugin cache.
+- `plugin_mastodon_safe_filename()` — line 5073 — Sanitize a file name for local storage.
+- `plugin_mastodon_safe_path_component()` — line 5058 — Sanitize a string so it can be used as a path component.
+- `plugin_mastodon_save_options()` — line 1807 — Persist plugin options.
+- `plugin_mastodon_scheduled_window_choices()` — line 2243 — Return the localized admin radio choices for the scheduled synchronization window.
+- `plugin_mastodon_scheduled_window_start_date()` — line 2464 — Return the FlatPress-local date key that starts the automatic scheduled sync window.
+- `plugin_mastodon_secret_decode()` — line 1939 — Decode a previously stored secret value.
+- `plugin_mastodon_secret_encode()` — line 1916 — Encode a secret value before storing it in the configuration.
+- `plugin_mastodon_secret_key()` — line 1899 — Build the encryption key used for stored secrets.
+- `plugin_mastodon_should_import_synced_comments_as_entries()` — line 2299 — Check whether a remote Mastodon status that is already mapped to a local FlatPress comment may also be imported as an entry.
+- `plugin_mastodon_should_check_old_thread_replies()` — line 2335 — Check whether known synchronized Mastodon threads should be checked for replies in rotating batches.
+- `plugin_mastodon_should_run_deletion_sync()` — line 2353 — Check whether the follow-up deletion synchronization is enabled.
+- `plugin_mastodon_should_update_local_from_remote()` — line 2281 — Check whether remote Mastodon updates may overwrite already existing local FlatPress content.
+- `plugin_mastodon_state_comment_key()` — line 2747 — Build the compound state key used for comment mappings.
+- `plugin_mastodon_state_get_comment_meta()` — line 3071 — Return mapping metadata for a local comment.
+- `plugin_mastodon_state_has_dirty_comment()` — line 2965 — Check whether a comment is queued for synchronization outside the scheduled window.
+- `plugin_mastodon_state_has_dirty_entry()` — line 2915 — Check whether an entry is queued for synchronization outside the scheduled window.
+- `plugin_mastodon_state_set_comment_tombstone()` — line 3085 — Store a tombstone that blocks stale re-imports of one deleted remote comment.
+- `plugin_mastodon_state_has_comment_tombstone()` — line 3105 — Check whether one remote Mastodon comment status was tombstoned locally.
+- `plugin_mastodon_protect_locally_deleted_exported_comments()` — line 3116 — Tombstone locally deleted exported FlatPress comment mappings before the next content sync can stale-reimport them from Mastodon thread context.
+- `plugin_mastodon_reattach_local_comment_to_entry_status()` — line 3162 — Remove a local imported reply parent link and reattach the surviving reply to the synchronized entry status after its remote parent reply disappeared.
+- `plugin_mastodon_state_remove_pending_comment_remote_recheck()` — line 3222 — Remove one pending descendant recheck marker.
+- `plugin_mastodon_state_get_pending_comment_remote_recheck()` — line 3236 — Return one pending descendant recheck marker.
+- `plugin_mastodon_state_set_pending_comment_remote_recheck()` — line 3251 — Mark one local comment for follow-up verification after an ancestor disappeared remotely.
+- `plugin_mastodon_state_set_deletions_pending()` — line 3277 — Persist whether another deletion follow-up request is pending, which scope it should run, and when it may start.
+- `plugin_mastodon_deletion_sync_due()` — line 3291 — Check whether the pending deletion synchronization may start after its persisted not-before timestamp.
+- `plugin_mastodon_state_has_comment_recheck_scope()` — line 3319 — Check whether the next deletion follow-up request should run only the targeted descendant recheck scope.
+- `plugin_mastodon_build_comment_remote_child_index()` — line 3328 — Build a direct-child index for mapped remote reply trees.
+- `plugin_mastodon_queue_comment_descendant_remote_rechecks()` — line 3356 — Queue only the direct mapped local children of one deleted remote comment for additional verification passes.
+- `plugin_mastodon_process_pending_comment_remote_rechecks()` — line 3395 — Process pending descendant rechecks breadth-first so deeper reply chains can converge within the same targeted follow-up request.
+- `plugin_mastodon_state_get_entry_meta()` — line 2976 — Return mapping metadata for a local entry.
+- `plugin_mastodon_normalize_deletions_pending_scope()` — line 2685 — Normalize the targeted deletion-follow-up scope marker.
+- `plugin_mastodon_state_normalize()` — line 2698 — Normalize a runtime state array and fill in missing keys.
+- `plugin_mastodon_state_read()` — line 2606 — Load the persisted runtime state from disk and fall back to the short-lived APCu state if the file is temporarily missing, empty, or invalid.
+- `plugin_mastodon_state_remove_dirty_comment()` — line 2951 — Remove a comment from the dirty queue.
+- `plugin_mastodon_state_remove_dirty_entry()` — line 2902 — Remove an entry from the dirty queue.
+- `plugin_mastodon_state_remove_comment_mapping()` — line 2857 — Remove the mapping between a local comment and a remote status.
+- `plugin_mastodon_state_remove_entry_mapping()` — line 2835 — Remove the mapping between a local entry and a remote status.
+- `plugin_mastodon_state_set_comment_mapping()` — line 2800 — Store the mapping between a local comment and a remote status.
+- `plugin_mastodon_state_set_dirty_comment()` — line 2928 — Add an older changed comment to the persistent dirty queue.
+- `plugin_mastodon_state_set_dirty_entry()` — line 2882 — Add an older changed entry to the persistent dirty queue.
+- `plugin_mastodon_state_set_entry_mapping()` — line 2762 — Store the mapping between a local entry and a remote status.
+- `plugin_mastodon_state_write()` — line 2660 — Persist the runtime state to disk and always refresh the short-lived APCu last-known-good state when possible.
+- `plugin_mastodon_status_missing_response()` — line 7760 — Check whether an API response means that the referenced Mastodon status no longer exists.
+- `plugin_mastodon_status_text_length()` — line 6482 — Calculate the Mastodon-visible status length with instance URL budgeting.
+- `plugin_mastodon_stream_context_request()` — line 7228 — Perform an HTTP request through a stream context fallback.
+- `plugin_mastodon_strip_flatpress_tag_bbcode()` — line 4150 — Remove Tag plugin BBCode blocks from entry content.
+- `plugin_mastodon_strip_trailing_mastodon_hashtag_footer()` — line 4215 — Remove a trailing Mastodon hashtag footer from imported plain text.
+- `plugin_mastodon_subject_line_is_noise()` — line 4494 — Determine whether an extracted line should be ignored as a subject.
+- `plugin_mastodon_sync_due()` — line 9137 — Determine whether the scheduled synchronization is currently due.
+- `plugin_mastodon_sync_local_to_remote()` — line 8524 — Synchronize local FlatPress content to Mastodon.
+- `plugin_mastodon_sync_remote_to_local()` — line 8457 — Synchronize remote Mastodon content into FlatPress.
+- `plugin_mastodon_tag_plugin_active()` — line 3963 — Determine whether the Tag plugin is active for the current FlatPress request.
+- `plugin_mastodon_timestamp_date_key()` — line 2362 — Convert a FlatPress-adjusted timestamp into a stable date key.
+- `plugin_mastodon_update_status()` — line 7800 — Update an existing Mastodon status.
+- `plugin_mastodon_upload_media_items()` — line 6884 — Upload local media items to Mastodon and collect the created media IDs.
+- `plugin_mastodon_verify_credentials()` — line 7646 — Verify the currently configured access token.
+- `plugin_mastodon_wait_for_media_attachment()` — line 6835 — Poll an asynchronously processed Mastodon media attachment until it is ready or times out.
 - `setup()` — line 8994 — Register the Mastodon admin panel template and assign plugin data to Smarty.
diff --git a/fp-plugins/mastodon/plugin.mastodon.php b/fp-plugins/mastodon/plugin.mastodon.php
index d5b678b8..3e3ebd66 100644
--- a/fp-plugins/mastodon/plugin.mastodon.php
+++ b/fp-plugins/mastodon/plugin.mastodon.php
@@ -3,7 +3,7 @@
  * Plugin Name: Mastodon
  * Plugin URI: https://www.flatpress.org
  * Description: Synchronizes FlatPress entries and comments with Mastodon. <a href="./fp-plugins/mastodon/doc_mastodon.txt" title="Instructions" target="_blank">[Instructions]</a>
- * Version: 2.2.2
+ * Version: 2.3.0
  * Author: FlatPress
  * Author URI: https://www.flatpress.org
  */
@@ -530,6 +530,8 @@ function plugin_mastodon_default_state() {
 		'comment_tombstones' => array(),
 		'pending_comment_remote_rechecks' => array(),
 		'old_thread_context_cursor' => '',
+		'deletion_cursor_entries' => '',
+		'deletion_cursor_comments' => '',
 		'content_stats' => plugin_mastodon_default_content_stats(),
 		'deletion_stats' => plugin_mastodon_default_deletion_stats()
 	);
@@ -2319,7 +2321,7 @@ function plugin_mastodon_should_quote_imported_reply_parent($options) {
 }
 
 /**
- * Normalize the toggle that enables rotating context checks for old synchronized Mastodon threads.
+ * Normalize the toggle that enables rotating context checks for known synchronized Mastodon threads.
  * @param mixed $value
  * @return string
  */
@@ -2328,7 +2330,7 @@ function plugin_mastodon_normalize_old_thread_reply_check($value) {
 }
 
 /**
- * Check whether old synchronized Mastodon threads should be checked for replies in rotating batches.
+ * Check whether known synchronized Mastodon threads should be checked for replies in rotating batches.
  * @param array<string, string> $options
  * @return bool
  */
@@ -2580,6 +2582,94 @@ function plugin_mastodon_mapping_matches_sync_start($options, $meta, $localFallb
 	return false;
 }
 
+/**
+ * Return the most stable date key available for a synchronized mapping.
+ *
+ * The deletion sync uses this for the automatic scheduled window only when the
+ * local object still exists and the run is not forced. Local deletions still
+ * remain governed by the manual sync start date, so older local deletions do
+ * not leave orphaned Mastodon statuses behind.
+ *
+ * @param array<string, mixed> $meta
+ * @param string $localFallbackId
+ * @return string
+ */
+function plugin_mastodon_mapping_effective_date_key($meta, $localFallbackId = '') {
+	$meta = is_array($meta) ? $meta : array();
+	$source = isset($meta ['source']) ? strtolower(trim((string) $meta ['source'])) : '';
+	$localDateKey = '';
+	if (!empty($meta ['local_date_key'])) {
+		$localDateKey = plugin_mastodon_normalize_sync_start_date((string) $meta ['local_date_key']);
+	}
+	if ($localDateKey === '') {
+		$localDateKey = plugin_mastodon_local_item_date_key(array(), $localFallbackId);
+	}
+	$remoteDateKey = '';
+	if (!empty($meta ['remote_date_key'])) {
+		$remoteDateKey = plugin_mastodon_normalize_sync_start_date((string) $meta ['remote_date_key']);
+	}
+	if ($remoteDateKey === '') {
+		$remoteDateKey = plugin_mastodon_datetime_date_key(isset($meta ['remote_updated_at']) ? (string) $meta ['remote_updated_at'] : '');
+	}
+	if ($source === 'remote' && $remoteDateKey !== '') {
+		return $remoteDateKey;
+	}
+	if ($source === 'local' && $localDateKey !== '') {
+		return $localDateKey;
+	}
+	if ($localDateKey !== '') {
+		return $localDateKey;
+	}
+	if ($remoteDateKey !== '') {
+		return $remoteDateKey;
+	}
+	return '';
+}
+
+/**
+ * Determine whether an existing local mapping should be remotely checked for deletion in this run.
+ *
+ * @param array<string, string> $options
+ * @param array<string, mixed> $meta
+ * @param string $localFallbackId
+ * @param bool $force
+ * @return bool
+ */
+function plugin_mastodon_mapping_matches_deletion_lookup_window($options, $meta, $localFallbackId, $force) {
+	if (!plugin_mastodon_mapping_matches_sync_start($options, $meta, $localFallbackId)) {
+		return false;
+	}
+	if ($force) {
+		return true;
+	}
+	$dateKey = plugin_mastodon_mapping_effective_date_key($meta, $localFallbackId);
+	if ($dateKey === '') {
+		return true;
+	}
+	return plugin_mastodon_date_matches_content_window($options, $dateKey, false);
+}
+
+/**
+ * Return mapping keys ordered after a saved deletion cursor.
+ *
+ * @param array<int, string> $keys
+ * @param string $cursor
+ * @return array<int, string>
+ */
+function plugin_mastodon_mapping_keys_after_cursor($keys, $cursor) {
+	$keys = is_array($keys) ? array_values(array_map('strval', $keys)) : array();
+	sort($keys, SORT_STRING);
+	$cursor = (string) $cursor;
+	if ($cursor === '' || empty($keys)) {
+		return $keys;
+	}
+	$position = array_search($cursor, $keys, true);
+	if ($position === false) {
+		return $keys;
+	}
+	return array_slice($keys, ((int) $position) + 1);
+}
+
 /**
  * Ensure that the plugin runtime directory exists.
  * @return bool
@@ -2716,6 +2806,8 @@ function plugin_mastodon_state_normalize($state) {
 	$state ['last_error'] = isset($state ['last_error']) ? (string) $state ['last_error'] : '';
 	$state ['last_remote_status_id'] = isset($state ['last_remote_status_id']) ? (string) $state ['last_remote_status_id'] : '';
 	$state ['old_thread_context_cursor'] = isset($state ['old_thread_context_cursor']) ? (string) $state ['old_thread_context_cursor'] : '';
+	$state ['deletion_cursor_entries'] = isset($state ['deletion_cursor_entries']) ? (string) $state ['deletion_cursor_entries'] : '';
+	$state ['deletion_cursor_comments'] = isset($state ['deletion_cursor_comments']) ? (string) $state ['deletion_cursor_comments'] : '';
 	$legacyContentStats = array();
 	foreach (array_keys($defaults ['content_stats']) as $key) {
 		if (isset($legacyStats [$key])) {
@@ -8362,7 +8454,7 @@ function plugin_mastodon_import_remote_context_descendants(&$options, &$state, $
 }
 
 /**
- * Return the maximum number of older known threads checked for replies per content sync run.
+ * Return the maximum number of known synchronized threads checked for replies per content sync run.
  * @return int
  */
 function plugin_mastodon_old_thread_context_rotation_limit() {
@@ -8770,6 +8862,8 @@ function plugin_mastodon_run_deletion_sync($force) {
 	if (!plugin_mastodon_should_run_deletion_sync($options)) {
 		plugin_mastodon_state_set_deletions_pending($state, false, 'full');
 		$state ['pending_comment_remote_rechecks'] = array();
+		$state ['deletion_cursor_entries'] = '';
+		$state ['deletion_cursor_comments'] = '';
 		$state ['last_error'] = '';
 		plugin_mastodon_state_write($state);
 		return array('ok' => true, 'state' => $state, 'message' => 'deletion_sync_disabled');
@@ -8796,6 +8890,7 @@ function plugin_mastodon_run_deletion_sync($force) {
 	}
 	plugin_mastodon_apply_file_permissions(PLUGIN_MASTODON_LOCK_FILE);
 	if (!@flock($lockHandle, LOCK_EX | LOCK_NB)) {
+		@fclose($lockHandle);
 		return array('ok' => true, 'state' => $state, 'message' => 'sync_locked');
 	}
 
@@ -8803,14 +8898,25 @@ function plugin_mastodon_run_deletion_sync($force) {
 	$state ['last_error'] = '';
 	$state ['deletion_stats'] = plugin_mastodon_default_state() ['deletion_stats'];
 	$hadFailure = false;
+	$deletionInterrupted = false;
 	$childIndex = plugin_mastodon_build_comment_remote_child_index($state);
 	$commentRecheckOnly = plugin_mastodon_state_has_comment_recheck_scope($state) && !empty($state ['pending_comment_remote_rechecks']);
 
 	if (!$commentRecheckOnly) {
-		$entryMappings = isset($state ['entries']) && is_array($state ['entries']) ? array_keys($state ['entries']) : array();
+		$entryMappingKeys = isset($state ['entries']) && is_array($state ['entries']) ? array_keys($state ['entries']) : array();
+		$entryMappings = plugin_mastodon_mapping_keys_after_cursor($entryMappingKeys, isset($state ['deletion_cursor_entries']) ? (string) $state ['deletion_cursor_entries'] : '');
+		$processedEntryMappings = 0;
+
 		foreach ($entryMappings as $localEntryId) {
+			if (plugin_mastodon_rate_limit_state_error() !== '') {
+				$deletionInterrupted = true;
+				break;
+			}
 			plugin_mastodon_extend_time_limit(120);
 			$localEntryId = (string) $localEntryId;
+			$entryCursorBefore = isset($state ['deletion_cursor_entries']) ? (string) $state ['deletion_cursor_entries'] : '';
+			$state ['deletion_cursor_entries'] = $localEntryId;
+			$processedEntryMappings++;
 			$meta = plugin_mastodon_state_get_entry_meta($state, $localEntryId);
 			if (empty($meta ['remote_id'])) {
 				plugin_mastodon_state_remove_entry_mapping($state, $localEntryId);
@@ -8832,6 +8938,16 @@ function plugin_mastodon_run_deletion_sync($force) {
 				$hadFailure = true;
 				$state ['last_error'] = 'entry_remote_delete_failed: ' . $localEntryId . ' (' . plugin_mastodon_response_error_message($deleted) . ')';
 				plugin_mastodon_log('Deletion sync failed to delete remote status for local entry ' . $localEntryId . ': ' . plugin_mastodon_response_error_message($deleted));
+				if (plugin_mastodon_rate_limit_state_error() !== '') {
+					$state ['deletion_cursor_entries'] = $entryCursorBefore;
+					$deletionInterrupted = true;
+					break;
+				}
+				continue;
+			}
+
+			if (!plugin_mastodon_mapping_matches_deletion_lookup_window($options, $meta, $localEntryId, $force)) {
+				plugin_mastodon_log('Skipping remote deletion lookup for entry ' . $localEntryId . ' because it is outside the scheduled deletion lookup window');
 				continue;
 			}
 
@@ -8848,76 +8964,116 @@ function plugin_mastodon_run_deletion_sync($force) {
 				$hadFailure = true;
 				$state ['last_error'] = 'entry_remote_lookup_failed: ' . $localEntryId . ' (' . plugin_mastodon_response_error_message($remote) . ')';
 				plugin_mastodon_log('Deletion sync failed to fetch remote status for local entry ' . $localEntryId . ': ' . plugin_mastodon_response_error_message($remote));
+				if (plugin_mastodon_rate_limit_state_error() !== '') {
+					$state ['deletion_cursor_entries'] = $entryCursorBefore;
+					$deletionInterrupted = true;
+					break;
+				}
 			}
 		}
 
-		$commentMappings = isset($state ['comments']) && is_array($state ['comments']) ? array_keys($state ['comments']) : array();
-		foreach ($commentMappings as $commentKey) {
-			plugin_mastodon_extend_time_limit(120);
-			$commentKey = (string) $commentKey;
-			$meta = isset($state ['comments'] [$commentKey]) && is_array($state ['comments'] [$commentKey]) ? $state ['comments'] [$commentKey] : array();
-			if (empty($meta ['entry_id']) || empty($meta ['comment_id'])) {
-				if ($commentKey !== '' && isset($state ['pending_comment_remote_rechecks'] [$commentKey])) {
-					unset($state ['pending_comment_remote_rechecks'] [$commentKey]);
+		if (!$deletionInterrupted && $processedEntryMappings >= count($entryMappings)) {
+			$state ['deletion_cursor_entries'] = '';
+		}
+
+		if (!$deletionInterrupted) {
+			$commentMappingKeys = isset($state ['comments']) && is_array($state ['comments']) ? array_keys($state ['comments']) : array();
+			$commentMappings = plugin_mastodon_mapping_keys_after_cursor($commentMappingKeys, isset($state ['deletion_cursor_comments']) ? (string) $state ['deletion_cursor_comments'] : '');
+			$processedCommentMappings = 0;
+
+			foreach ($commentMappings as $commentKey) {
+				if (plugin_mastodon_rate_limit_state_error() !== '') {
+					$deletionInterrupted = true;
+					break;
 				}
-				continue;
-			}
-			$entryId = (string) $meta ['entry_id'];
-			$commentId = (string) $meta ['comment_id'];
-			$commentMeta = plugin_mastodon_state_get_comment_meta($state, $entryId, $commentId);
-			if (empty($commentMeta ['remote_id'])) {
-				plugin_mastodon_state_remove_pending_comment_remote_recheck($state, $entryId, $commentId);
-				plugin_mastodon_state_remove_comment_mapping($state, $entryId, $commentId);
-				continue;
-			}
-			if (!plugin_mastodon_mapping_matches_sync_start($options, $commentMeta, $commentId)) {
-				plugin_mastodon_log('Skipping deletion sync for comment ' . $entryId . '/' . $commentId . ' because it is older than the configured sync start date');
-				plugin_mastodon_state_remove_pending_comment_remote_recheck($state, $entryId, $commentId);
-				continue;
-			}
-			if (plugin_mastodon_state_get_pending_comment_remote_recheck($state, $entryId, $commentId) !== array()) {
-				continue;
-			}
-			$remoteId = (string) $commentMeta ['remote_id'];
-			$localExists = (bool) comment_exists($entryId, $commentId);
-			if (!$localExists) {
-				$deleted = plugin_mastodon_delete_status($options, $remoteId, true);
-				if (!empty($deleted ['ok']) || plugin_mastodon_status_missing_response($deleted)) {
-					$queuedDescendants = plugin_mastodon_queue_comment_descendant_remote_rechecks($state, $childIndex, $remoteId);
-					plugin_mastodon_state_set_comment_tombstone($state, $remoteId, $entryId, $commentId, 'local_deleted_remote_deleted');
+				plugin_mastodon_extend_time_limit(120);
+				$commentKey = (string) $commentKey;
+				$commentCursorBefore = isset($state ['deletion_cursor_comments']) ? (string) $state ['deletion_cursor_comments'] : '';
+				$state ['deletion_cursor_comments'] = $commentKey;
+				$processedCommentMappings++;
+				$meta = isset($state ['comments'] [$commentKey]) && is_array($state ['comments'] [$commentKey]) ? $state ['comments'] [$commentKey] : array();
+				if (empty($meta ['entry_id']) || empty($meta ['comment_id'])) {
+					if ($commentKey !== '' && isset($state ['pending_comment_remote_rechecks'] [$commentKey])) {
+						unset($state ['pending_comment_remote_rechecks'] [$commentKey]);
+					}
+					continue;
+				}
+				$entryId = (string) $meta ['entry_id'];
+				$commentId = (string) $meta ['comment_id'];
+				$commentMeta = plugin_mastodon_state_get_comment_meta($state, $entryId, $commentId);
+				if (empty($commentMeta ['remote_id'])) {
 					plugin_mastodon_state_remove_pending_comment_remote_recheck($state, $entryId, $commentId);
 					plugin_mastodon_state_remove_comment_mapping($state, $entryId, $commentId);
-					$state ['deletion_stats'] ['deleted_remote_comments']++;
-					if ($queuedDescendants > 0) {
-						plugin_mastodon_log('Queued ' . $queuedDescendants . ' direct local descendant comment(s) for follow-up verification after deleting remote comment ' . $remoteId);
+					continue;
+				}
+				if (!plugin_mastodon_mapping_matches_sync_start($options, $commentMeta, $commentId)) {
+					plugin_mastodon_log('Skipping deletion sync for comment ' . $entryId . '/' . $commentId . ' because it is older than the configured sync start date');
+					plugin_mastodon_state_remove_pending_comment_remote_recheck($state, $entryId, $commentId);
+					continue;
+				}
+				if (plugin_mastodon_state_get_pending_comment_remote_recheck($state, $entryId, $commentId) !== array()) {
+					continue;
+				}
+				$remoteId = (string) $commentMeta ['remote_id'];
+				$localExists = (bool) comment_exists($entryId, $commentId);
+				if (!$localExists) {
+					$deleted = plugin_mastodon_delete_status($options, $remoteId, true);
+					if (!empty($deleted ['ok']) || plugin_mastodon_status_missing_response($deleted)) {
+						$queuedDescendants = plugin_mastodon_queue_comment_descendant_remote_rechecks($state, $childIndex, $remoteId);
+						plugin_mastodon_state_set_comment_tombstone($state, $remoteId, $entryId, $commentId, 'local_deleted_remote_deleted');
+						plugin_mastodon_state_remove_pending_comment_remote_recheck($state, $entryId, $commentId);
+						plugin_mastodon_state_remove_comment_mapping($state, $entryId, $commentId);
+						$state ['deletion_stats'] ['deleted_remote_comments']++;
+						if ($queuedDescendants > 0) {
+							plugin_mastodon_log('Queued ' . $queuedDescendants . ' direct local descendant comment(s) for follow-up verification after deleting remote comment ' . $remoteId);
+						}
+						continue;
+					}
+					$hadFailure = true;
+					$state ['last_error'] = 'comment_remote_delete_failed: ' . $entryId . '/' . $commentId . ' (' . plugin_mastodon_response_error_message($deleted) . ')';
+					plugin_mastodon_log('Deletion sync failed to delete remote status for local comment ' . $entryId . '/' . $commentId . ': ' . plugin_mastodon_response_error_message($deleted));
+					if (plugin_mastodon_rate_limit_state_error() !== '') {
+						$state ['deletion_cursor_comments'] = $commentCursorBefore;
+						$deletionInterrupted = true;
+						break;
 					}
 					continue;
 				}
-				$hadFailure = true;
-				$state ['last_error'] = 'comment_remote_delete_failed: ' . $entryId . '/' . $commentId . ' (' . plugin_mastodon_response_error_message($deleted) . ')';
-				plugin_mastodon_log('Deletion sync failed to delete remote status for local comment ' . $entryId . '/' . $commentId . ': ' . plugin_mastodon_response_error_message($deleted));
-				continue;
-			}
 
-			$remote = plugin_mastodon_fetch_status($options, $remoteId);
-			if (plugin_mastodon_status_missing_response($remote)) {
-				$queuedDescendants = plugin_mastodon_queue_comment_descendant_remote_rechecks($state, $childIndex, $remoteId);
-				if (comment_exists($entryId, $commentId)) {
-					comment_delete($entryId, $commentId);
+				if (!plugin_mastodon_mapping_matches_deletion_lookup_window($options, $commentMeta, $commentId, $force)) {
+					plugin_mastodon_log('Skipping remote deletion lookup for comment ' . $entryId . '/' . $commentId . ' because it is outside the scheduled deletion lookup window');
+					continue;
 				}
-				plugin_mastodon_state_set_comment_tombstone($state, $remoteId, $entryId, $commentId, 'remote_missing_local_deleted');
-				plugin_mastodon_state_remove_pending_comment_remote_recheck($state, $entryId, $commentId);
-				plugin_mastodon_state_remove_comment_mapping($state, $entryId, $commentId);
-				$state ['deletion_stats'] ['deleted_local_comments']++;
-				if ($queuedDescendants > 0) {
-					plugin_mastodon_log('Queued ' . $queuedDescendants . ' direct local descendant comment(s) for follow-up verification after remote comment ' . $remoteId . ' disappeared');
+
+				$remote = plugin_mastodon_fetch_status($options, $remoteId);
+				if (plugin_mastodon_status_missing_response($remote)) {
+					$queuedDescendants = plugin_mastodon_queue_comment_descendant_remote_rechecks($state, $childIndex, $remoteId);
+					if (comment_exists($entryId, $commentId)) {
+						comment_delete($entryId, $commentId);
+					}
+					plugin_mastodon_state_set_comment_tombstone($state, $remoteId, $entryId, $commentId, 'remote_missing_local_deleted');
+					plugin_mastodon_state_remove_pending_comment_remote_recheck($state, $entryId, $commentId);
+					plugin_mastodon_state_remove_comment_mapping($state, $entryId, $commentId);
+					$state ['deletion_stats'] ['deleted_local_comments']++;
+					if ($queuedDescendants > 0) {
+						plugin_mastodon_log('Queued ' . $queuedDescendants . ' direct local descendant comment(s) for follow-up verification after remote comment ' . $remoteId . ' disappeared');
+					}
+					continue;
+				}
+				if (empty($remote ['ok'])) {
+					$hadFailure = true;
+					$state ['last_error'] = 'comment_remote_lookup_failed: ' . $entryId . '/' . $commentId . ' (' . plugin_mastodon_response_error_message($remote) . ')';
+					plugin_mastodon_log('Deletion sync failed to fetch remote status for local comment ' . $entryId . '/' . $commentId . ': ' . plugin_mastodon_response_error_message($remote));
+					if (plugin_mastodon_rate_limit_state_error() !== '') {
+						$state ['deletion_cursor_comments'] = $commentCursorBefore;
+						$deletionInterrupted = true;
+						break;
+					}
 				}
-				continue;
 			}
-			if (empty($remote ['ok'])) {
-				$hadFailure = true;
-				$state ['last_error'] = 'comment_remote_lookup_failed: ' . $entryId . '/' . $commentId . ' (' . plugin_mastodon_response_error_message($remote) . ')';
-				plugin_mastodon_log('Deletion sync failed to fetch remote status for local comment ' . $entryId . '/' . $commentId . ': ' . plugin_mastodon_response_error_message($remote));
+
+			if (!$deletionInterrupted && $processedCommentMappings >= count($commentMappings)) {
+				$state ['deletion_cursor_comments'] = '';
 			}
 		}
 	} else {
@@ -8928,14 +9084,14 @@ function plugin_mastodon_run_deletion_sync($force) {
 	$rateLimitError = plugin_mastodon_rate_limit_state_error();
 	if ($rateLimitError !== '') {
 		$hadFailure = true;
-		if ($state ['last_error'] === '') {
-			$state ['last_error'] = $rateLimitError;
-		}
+		$state ['last_error'] = $rateLimitError;
 	}
 
 	if (!$hadFailure) {
 		$deletionCompletionTimestamp = time();
 		$state ['last_deletion_run'] = date('Y-m-d H:i:s', $deletionCompletionTimestamp);
+		$state ['deletion_cursor_entries'] = '';
+		$state ['deletion_cursor_comments'] = '';
 		plugin_mastodon_state_set_deletions_pending($state, $pendingCommentRechecksRemaining, $pendingCommentRechecksRemaining ? 'comment_rechecks' : 'full', date('Y-m-d H:i:s', $deletionCompletionTimestamp + PLUGIN_MASTODON_COOLDOWN_TTL));
 		$state ['last_error'] = '';
 		if ($pendingCommentRechecksRemaining) {
@@ -8969,6 +9125,7 @@ function plugin_mastodon_run_deletion_sync($force) {
 	return array('ok' => (!$hadFailure && $stateWriteOk), 'state' => $state, 'message' => $state ['last_error'] === '' ? 'ok' : $state ['last_error']);
 }
 
+
 /**
  * Determine whether the scheduled synchronization is currently due.
  *