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fix: collect finalized Relay trajectories in Harbor - #376
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rapids-bot[bot] merged 2 commits intoOct 8, 2026
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Signed-off-by: Ajay Thorve <athorve@nvidia.com>
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WalkthroughWhen a Fabric runtime stops, Harbor telemetry validation can discover finalized local Relay ATIF files, validate them, and promote valid trajectories. The Harbor runner passes the stopped-runtime flag. Tests and documentation cover collection behavior and rejection cases. ChangesHarbor Relay telemetry
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Sequence Diagram(s)sequenceDiagram
participant Runner as Harbor runner
participant Publisher as publish_telemetry_evidence
participant Validator as validate_telemetry
participant RelayFiles as Local Relay artifact files
participant Harbor as Harbor trajectory output
Runner->>Publisher: Publish telemetry with runtime_stopped=true
Publisher->>Validator: Validate telemetry
Validator->>RelayFiles: Discover and read finalized ATIF files
Validator-->>Publisher: Return validated artifact paths
Publisher->>Harbor: Promote valid trajectory artifact
Merge Risk: ⚪ Minimal · up to Harbor telemetry now collects finalized local Relay trajectories after runtime shutdown, with path confinement and rejection tests in place. No concrete merge-blocking risk was found; confirm the full Python test run on the final head before merging. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Fern docs preview: https://nvidia-preview-pull-request-376.docs.buildwithfern.com/nemo/fabric |
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Actionable comments posted: 4
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at
@sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/telemetry.py:
- Around line 127-129: Update the relay_runtime handling in
publish_telemetry_evidence to check that relay_runtime is a dict before
accessing plugin_config_path; use None when output or relay_runtime has an
unexpected shape so telemetry parsing does not raise AttributeError.
- Around line 138-150: Validate the parsed TOML structure in
publish_telemetry_evidence before iterating components or accessing component
config and atif values; require each expected value to be a table and components
to be a list. Convert malformed-structure failures to TelemetryValidationError
so they follow the existing telemetry failure path.
- Around line 174-178: Update the filename pattern construction for
filename_template to collapse each consecutive run of placeholders into a single
non-slash quantifier whose minimum length equals the number of placeholders,
while preserving literal text and matching behavior for other templates.
Review comments at @tests/integrations/test_harbor_telemetry.py:
- Around line 123-149: Extend
test_finalized_relay_atif_rejects_unsafe_or_invalid_artifacts with rejection
cases for a symlinked plugin_config_path, malformed plugin TOML, and a
filename_template containing “/”; update the parameterized setup to modify the
fixture’s plugins.toml for these cases and assert telemetry publication raises
TelemetryValidationError. Do not add a missing-relay_runtime case.
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sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/README.mdsdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/runner.pysdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/telemetry.pytests/integrations/test_harbor_telemetry.py
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🧰 Additional context used
📚 Code guidelines (2)
.agents/skills/validate-change/SKILL.md — configured
README.md — auto-discovered
📓 Path-based instructions (5)
Review Python SDK changes for typed API consistency, import-time dependency neutrality, async/session behavior, and parity with the native extension.
⚙️ CodeRabbit configuration file
Files:
sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/runner.pysdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/README.mdsdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/telemetry.py
Enforce the product name in user-facing prose: use "NVIDIA NeMo Fabric" on first use and "NeMo Fabric" thereafter.
⚙️ CodeRabbit configuration file
Files:
sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/README.md
Tests should cover the behavior promised by the changed API surface, including error paths, lifecycle cleanup, and SDK/native parity where relevant.
⚙️ CodeRabbit configuration file
Files:
tests/integrations/test_harbor_telemetry.py
Source excerpt: If Python code or a Python-facing adapter changed, run `just test-python`.
📄 CodeRabbit inference engine (.agents/skills/validate-change/SKILL.md)
Files:
sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/runner.pytests/integrations/test_harbor_telemetry.pysdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/telemetry.py
Source excerpt: NeMo Fabric includes adapters for the following harnesses and execution targets.
📄 CodeRabbit inference engine (README.md)
Files:
sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/README.md
🪛 ast-grep (0.45.3)
tests/integrations/test_harbor_telemetry.py
[info] 57-64: use jsonify instead of json.dumps for JSON output
Context: json.dumps(
{
"schema_version": "ATIF-v1.7",
"session_id": "relay-session",
"agent": {"name": "pi", "version": "1.0"},
"steps": [{"step_id": 1, "source": "agent", "message": "done"}],
}
)
Note: [CWE-116] Improper Encoding or Escaping of Output.
(use-jsonify)
sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/telemetry.py
[warning] 178-178: Regex pattern passed to re is built from a non-literal (variable, call, concatenation, or f-string) value. If that value is attacker-controlled it can introduce a malicious pattern with catastrophic backtracking (ReDoS). Use a hardcoded literal pattern, or validate/escape untrusted input with re.escape() and bound the regex complexity before compiling.
Context: re.fullmatch(pattern, path.name)
Note: [CWE-1333] Inefficient Regular Expression Complexity.
(redos-non-literal-regex-python)
🔇 Additional comments (2)
sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/runner.py (1)
81-81: LGTM!sdk/python/nemo-fabric-runtime/src/nemo_fabric/integrations/harbor/README.md (1)
58-61: LGTM!
Signed-off-by: Ajay Thorve <athorve@nvidia.com>
Contributor
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Overview
Collect Relay trajectories finalized during runtime shutdown in Harbor's one-shot task runner. A real Terminal-Bench 2.1 Pi run completed successfully but its valid ATIF trajectory was missing from Harbor's canonical artifact because Pi finalizes it only when the runtime stops.
No breaking changes, dependency changes, or adapter invocation/multi-turn changes. This is a follow-up to merged #374; the fix is not in v0.5.0-beta.2.
Details
agent/trajectory.json. Reject escaping paths and symlinks; do not scan unrelated runs.Validation
1cd0400c: full Python 1,894 passed, 97 skipped; 105 focused telemetry/runner/capability tests passed, including eight reproduced malformed-input failures now handled safely, symlink/TOML/nested-template rejection, and adjacent-placeholder filename matching. Ruff and diff hygiene passed. Exact-head GitHub CI passed across supported Python platforms, Rust, TypeScript, wheels, and docs. A serialized additional local TypeScript/Rust pass is running.87c622a5: full Python 1,881 passed, 97 skipped, full Rust 160 passed, and full TypeScript checks/package consumer installs passed. These are baselines after the review fixes, not exact-new-head qualification. The first Rust attempt collided with npm installation; the serialized retry passed.regex-log: reward 1.0, zero exceptions, automatically promoted valid five-step ATIF. Actual Harbortraces exportproduced four rows, using the matching local Fabric build and Harbor exporter fix in feat: add NeMo Fabric agent harbor-framework/harbor#3528.Where should the reviewer start?
Start with
runner.py's post-shutdown call, then_finalized_relay_atif_pathsintelemetry.pyand the regression cases intest_harbor_telemetry.py. The important invariant is that invocation-time collection remains unchanged; finalized collection is scoped to the stopped runtime's configured local artifacts.Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)
Relates to feat: derive Harbor admission from adapter metadata #374 and feat: add NeMo Fabric agent harbor-framework/harbor#3528.
I confirm this contribution is my own work, or I have the right to submit it under this project's license.
I searched existing issues and open pull requests, and this does not duplicate existing work.