Seed collaboration showcase fixtures

[HamptonMakes]

Why

The development seed stopped short of the features that landed over the last few weeks: nothing demonstrated agent attribution (#178/#181), comment threads in any state, citation back matter (#177), folder descriptions or the library audit trail (#176). Demos, screenshots, and manual testing all required hand-crafted one-off scripts — the "Claude (via Hampton)" screenshot for this week's #coplan update was staged exactly that way.

What

• New collab-showcase document ("Search latency: cutting p95 with a two-tier cache") exercising the reference system end-to-end: footnote citations with source links, explicit [§3](#section-3) numbered-section links, a tagged code fence, and prose the comment fixtures anchor to
• Agent-attributed v2 edit through Plans::ReplaceContent — history renders "Claude (via …)" with full api_token provenance, backed by a seeded root token carrying harness metadata
• Comment threads in every reviewer-facing state: open, accepted (todo), resolved, overlapping anchors (open nested inside resolved), an agent comment, an unanchored general remark, and one on the code-walkthrough doc
• References showcase: two extracted link citations, an internal plan reference with a resolved target_plan, and one explicit curated repository reference
• Folder descriptions on four folders, plus an agent-attributed bulk organize run (three cross-library placements sharing a run_id, each audit event carrying agent name and token provenance)
• Seed spec now locks idempotency across all new record types (versions, threads, comments, references, library events, tokens) and asserts the showcase shapes

Risk Assessment

Low — development/test seed data only; no production code paths change. Fixtures follow the existing deterministic, never-clobber-local-edits pattern: anchors that no longer match after local edits skip with a warning instead of failing the seed.

References

• Seeded twice on a fresh MySQL database: identical counts both runs
• Full suite: 1486 examples, 0 failures
• Verified rendering in the browser: citation hover previews, References back matter, "Claude (via …)" history, comment highlights and TOC badges

Generated with Claude Code

Screenshots

The showcase document — citation superscripts, section links, comment highlights, TOC badges

Citation hover preview with source identity

References back matter — extracted citations, a resolved plan reference, and a curated repository

History with agent attribution