security: PR #83 synchronize expanded scope (6 files, +7/-5) vs. stated docs-only (2 SKILL.md) — verify changeset

[vks-archastro]

Summary

PR #83 ("docs(skills): document the triage routine in the engagement playbook", branch docs/triage-routine, author @calvin-archastro) was re-triggered by a synchronize event. The new push changed the head SHA and expanded the changeset beyond the PR's stated scope, which a human reviewer should eyeball before merge.

• Head SHA: 6e755085f24a078966768eaa8e52ba27026505f5 (was 2836d45b95548530f94762e3f28a9df2c420f43f at opened)
• Base: main (64b85458bb7211cf29b3a533da02da2b98ef6c85)
• PR: docs(skills): document the triage routine in the engagement playbook #83

The discrepancy

	At opened (reviewed Outcome A / noise)	At this synchronize
changed_files	2	6
additions / deletions	+2 / -0	+7 / -5

The PR title and body still describe this as docs-only — "two SKILL.md files… No agent config, script, or runtime change." The webhook cumulative diff (6 files, with deletions) no longer matches that description.

What I verified

• Agent template solutions/onboarding-qa-sample/agents/onboarding-qa-sample.yaml is byte-identical on main and the head branch (blob d9d002f67f44e33dc320a9d3261d4eea85c3d98e). The agent's tools: / routines: / installations: blocks are NOT changed by this PR. Good.
• The routine/preset architecture the docs describe is real (matches the triage preset shipped in firstlanding #6745).

What I could NOT verify

I could not enumerate all 6 changed files with the read tools available (no diff/list-files API; path-probing for the SKILL.md files returned 404s). So I cannot byte-confirm that all 6 files in this push are benign docs. The expansion + deletions are most plausibly: the original 2-row table edit, the second synced SKILL.md copy, and possibly the solution README/architecture docs — but that is an assumption, not a verification.

Triage reasoning

Escalating instead of fixing/dismissing because:

• A synchronize that grows a "docs-only" PR from 2→6 files and introduces deletions is a scope discrepancy that warrants human eyes (InfoSec change-review expectation).
• I verified the highest-risk artifact (agent config) is unchanged, but cannot confirm the remaining files. "Likely benign but unverifiable" is a human judgment call, not noise.

Recommended action

1. Open the PR Files changed tab and confirm all 6 files are docs/skill-content only (no agent YAML, script, CI/workflow, config, env, or secrets).
2. Confirm the -5 deletions are expected (e.g. table reflow / synced-copy edits), not the removal of a security control.
3. If all 6 are docs, this reverts to noise — no remediation needed. If any code/config snuck in, re-review that file specifically.

Severity

Low — per the Patch Management Standard. No CVE, no known vulnerable sink; verified agent config unchanged. This is a scope-verification ask, not an active vulnerability. The substantive triage-routine behavior concerns (active posting / task-claiming / task_list auto-injection) live with firstlanding #6745 and are separately handed off in #security-privacy-compliance — they are NOT introduced by this docs PR.

Mitigations in place

• Highest-risk file (agent template) confirmed unchanged.
• Public sample repo; the documented behavior ships in the platform, not in this repo.

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Filed by Security Triage Agent on synchronize re-review. Prior opened review of head 2836d45b was Outcome A (noise); re-reviewed because head SHA changed.