[cao-githubnext-gh-aw-cao-write]

Dependency Release Train Summary

What changed

• Package/ecosystem: npm — yaml
• Manifest(s): package.json + package-lock.json (root), dashboard/site/package.json + dashboard/site/package-lock.json
• Old version: 2.9.0 (both manifests declared ^2.9.0, lockfiles resolved 2.9.0)
• New version: 2.9.1 (declared ^2.9.1, lockfiles resolved 2.9.1)
• Update type: patch

Why now

• Routine freshness: npm-check-updates flagged yaml as the only patch-level update available across both manifests during this run's dependency scan. No security advisory is currently open for this package or repo (0 open Dependabot alerts confirmed via list_dependabot_alerts).

Risk assessment

• Runtime/dev/build/CI scope: runtime dependency at root (used by docs/lib/catalog.ts, scripts/package-lifecycle-matrix.mjs), dev dependency in dashboard/site (used by dashboard/site/src/validator.js and test files).
• Direct/transitive: direct dependency in both manifests.
• Reachability: confirmed direct imports (from "yaml") in docs/lib/catalog.ts, scripts/package-lifecycle-matrix.mjs, dashboard/site/src/validator.js, and two test files — not lockfile-only.
• Atomicity: both manifests bumped together in one PR since they independently pin the same package to the same target version; no shared lockfile or workspace link between root and dashboard/site, so this is two small independent bumps bundled for reviewer convenience, not a single dependency graph.
• Toolchain used: Node v22.23.2, npm 10.9.8 (matches repository's available toolchain; no engines/packageManager field pins a different version).
• Registry preflight: npm view yaml versions and npm install yaml@2.9.1 --package-lock-only both succeeded against the public npm registry — no private registry or credential issues.
• Breaking changes/migrations: none — this is a patch release (bug fixes only per semver).
• Risk: low
• Confidence: high

Validation

• Commands run: npm install yaml@2.9.1 --package-lock-only (both manifests), npm install (full root install to materialize node_modules), node --test tests/unit/*.test.mjs, node --test tests/unit/workflow-contract.test.mjs tests/unit/dashboard-site-build.test.mjs, npm run compile.
• Result: unit test suite passes with the same 5 pre-existing failures present both with and without this change (verified via git stash/git stash pop A-B comparison) — all 5 are unrelated to this dependency (sandbox target/ checkout artifacts and a stale local gh aw CLI binary causing npm run compile to fail identically before and after this change). No new failures introduced by the yaml bump.
• Remaining gaps: npm run compile fails in this sandbox due to a pre-installed gh aw CLI version (v0.88.7) being older than the repo's declared min-version (v0.89.7) in aw.yml — this is a sandbox tooling gap unrelated to the dependency change and reproduces identically on unmodified main.

Control Plane

• Correlation ID: 34675536783-1240
• Central repo: githubnext/gh-aw-cao
• Run URL: https://github.com/githubnext/gh-aw-cao/actions/runs/34675536783

Smart-Dependabot-Merge-Candidate: yes

Reviewer checklist

• CI passes
• CODEOWNERS or service owners reviewed
• Security-sensitive areas approved, if applicable
• Deployment/canary owner confirms runtime health, if needed

Rollback guidance

• Revert this PR, or pin yaml back to ^2.9.0 in both package.json files and regenerate lockfiles with npm install --package-lock-only.
• Revert package.json and package-lock.json together in each of the two locations (root and dashboard/site) — they are independent bumps but each pair must stay in sync.

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[github-actions]

Dashboard view assessment

No dashboard views were potentially impacted by this pull request.

The assessment was blocked before every view could be checked.

View	Result	DOM nodes	Findings
View the workflow run.

[cao-githubnext-gh-aw-cao-write]

Duplicate dependency PR detected. This PR and #10189 both bump yaml 2.9.0 → 2.9.1 in the same manifests (package.json + package-lock.json at root and in dashboard/site/), opened from separate release-train runs a few hours apart.

• Root cause: two runs of the release-train worker each independently found the same routine patch update available and opened separate PRs before either merged.
• Status: neither PR has merged yet (target manifests on main still show yaml": "^2.9.0"), so there's no conflict risk from merging — but only one should land.
• Suggested fix: keep whichever of [dependabot-agent] Bump yaml to 2.9.1 (patch) #10189 / [dependabot-agent] Bump yaml from 2.9.0 to 2.9.1 (patch) #10228 has the cleaner CI/validation history, close the other as duplicate. No code changes needed to either PR's diff.
• Note: Prevent duplicate Dependabot release-train work #10314 (merged just now) adds work-identity/cooldown deduplication to the release-train workflow specifically to prevent this class of duplicate in future runs.

No further dependency-update PR is being opened for yaml this run to avoid a third duplicate.

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[cao-githubnext-gh-aw-cao-write]

Duplicate detected. This PR bumps yaml from 2.9.0 to 2.9.1 in the same root and dashboard/site manifests as PR #10419 (opened later, still open, same scope, same target version). Since both changes are functionally identical and the manifests currently still pin 2.9.0, only one of these should land.

Recommendation: Close this PR in favor of #10419 (or #10189, whichever the maintainer prefers to keep) to avoid redundant review/merge churn. No further dependency-bump action is needed here — the underlying update is already tracked by the other open PR(s).

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[cao-githubnext-gh-aw-cao-write]

Duplicate dependency bump detected.

This PR (yaml 2.9.0 → 2.9.1) duplicates the same change already open in #10419 (dependabot-agent/yaml-2.9.1-patch-20260912203536), which is the most recent and has clean mergeable state against current main.

Root cause: three separate dependabot-release-train-updater runs (2026-09-12 05:34, 2026-09-12 01:09, and 2026-09-12 20:39) each independently proposed the identical yaml patch bump because none of the prior branches had been merged or closed yet, so each run's duplicate-PR search found no matching open PR at scan time.

Recommendation: close this PR and #10189 in favor of #10419, then delete the now-stale branch dependabot-agent/yaml-patch-20260912 (and the other stale dependabot-agent/yaml-* branches) to stop future runs from re-detecting them as candidates.

No further action needed from this bot on this PR.

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[cao-githubnext-gh-aw-cao-write]

Duplicate detected: This PR bumps yaml from 2.9.0 to 2.9.1 — the exact same change is already proposed in #10419 (created later, same manifests, same version bump, currently clean/mergeable). This appears to be a duplicate produced by an earlier run of the Dependabot Release Train workflow before it correctly detected the prior duplicate.

Recommendation: Merge or keep only one of #10189 / #10228 / #10419 (all three are functionally identical yaml 2.9.0→2.9.1 bumps across the same two manifest pairs). Close this one and #10189 in favor of #10419, or pick whichever has the freshest CI run.

No further code change needed here — this is a bookkeeping/triage note only.

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[cao-githubnext-gh-aw-cao-write]

Root cause: This PR duplicates the currently-open #10189 (created earlier, 2026-09-12 01:09 UTC vs this PR's 2026-09-12 05:34 UTC) — both bump yaml 2.9.0 → 2.9.1 in package.json/package-lock.json (root and dashboard/site) with a byte-identical diff, confirmed via git diff comparison this run.

Status: Safe update, but redundant with #10189.

Recommendation: Close this PR as a duplicate once #10189 merges. No further action needed on this branch.

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[cao-githubnext-gh-aw-cao-write]

Root cause: this PR duplicates two other open dependency-agent PRs making the identical yaml 2.9.0 → 2.9.1 patch bump to the same manifests (package.json/package-lock.json at root and in dashboard/site/): #10419 and #10189.

Status: blocked — closing as duplicate is recommended rather than merging.

Recommendation: keep #10189 (oldest, most thorough validation: typecheck + full test suites in both root and dashboard/site) as the canonical PR, and close this one (#10228) and #10419 to avoid triple-merging the same change.

Next step: a maintainer should close this PR in favor of #10189, then rebase #10189 onto current main before merging.

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