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qwen-code/.github
Shaojin WenandQwen-Coder cf29f90062 fix(ci): route the review/resolve permission gate to the ECS pool (#16482)
* fix(ci): route the review/resolve permission gate to the ECS pool

The authorize job gates every @qwen-code /review and /resolve command, but its
ECS routing required github.event.pull_request, which issue_comment and
workflow_dispatch payloads do not carry. Every command therefore fell through
to ubuntu-latest, and the gate sat in the hosted queue for hours (PR #15286:
3h10m for a 4-second job) while the ECS pool was idle.

Route issue_comment and workflow_dispatch to the persistent ECS pool, matching
qwen-autofix.yml's route/review-scan pattern for PAT-bearing API-only steps.
authorize runs no agent, checks out nothing, and processes no PR content, so
this does not widen the fork attack surface. PR-payload events keep the
same-repo fork guard; the hosted fallback and ECS kill switch are unchanged.

resolve-pr and publish-resolution stay on hosted by design (ephemerality); this
removes the gate wait only.

* fix(ci): harden the authorize ECS-routing pins and risk docs

Address review feedback on the gate routing change:
- Pin the checkout-free invariant the ECS routing depends on: a uses: step on
  authorize would execute contributor-authored files on the persistent pool
  with CI_BOT_PAT in the step env while the expression pin stayed green (R1-1).
  Scoped to authorize; mutation-witnessed (adding actions/checkout reds it).
- Record the trigger-set widening in the design-doc Risks (both languages):
  issue_comment makes the gate fireable by any GitHub user on a fork PR, and
  the should_review authorization fact is now produced on the shared host and
  consumed downstream without re-deriving (R1-2).
- Correct the precedent wording: route loads only the read-only github.token;
  review-scan is the job that loads CI_DEV_BOT_PAT on the pool.

* fix(ci): harden the shared-pool authorize gate against gh config reroute

Address the round-2 CHANGES_REQUESTED review (R2-1 Critical, R2-2):

R2-1: routing the gate to the persistent ecs-qwen pool moved its CI_BOT_PAT
gh api call onto a host with a shared, writable ~/.config/gh. A co-resident
survivor could plant http_unix_socket there, receive the PAT, and forge the
permission response downstream consumes as should_review. Prepend the same
pins as qwen-autofix.yml's route/review-scan — export GH_HOST=github.com plus
a private, guarded GH_CONFIG_DIR (a failed mktemp exits 1; the gate fails
closed). No `unset GH_TOKEN`: it is this step's only credential. Witnessed
with real gh 2.103.0: the as-written step leaks the PAT to a planted socket
and approves a stranger; the hardened step denies with the socket untouched.

R2-2: extend the checkout-free guard to the run: half — pin the step
inventory to the single permission step and forbid `${{` spliced into any run
body (event values must arrive via env:). Mutation-witnessed: removing the
preamble and adding a run-only second step each red the test.

Also correct the design-doc parity claim (both languages): the exposure
matches review-scan only WITH these gh pins; document the hardening.

* fix(ci): extend the ECS gate routing to triage and harden the gate pins

Two batches, verified together before push:

1. Extend the command-gate routing to qwen-triage.yml's authorize (the
   /triage, /tmux, /verify sibling blind spot): the same issue_comment /
   workflow_dispatch disjuncts, and — because that job has three steps that
   spend CI_BOT_PAT on gh — the same self-contained GH_HOST + guarded
   GH_CONFIG_DIR preamble on each, per the repo's per-step convention. Raise
   the recorded workflow size baseline to match the added hardening.

2. Address round-3 review (R2-2 fix-induced, R3-1): the gate pins tested
   substring presence only. Now evaluate the comment-stripped live lines and
   pin the guarded mktemp form + fail-closed shape, require GH_HOST /
   GH_CONFIG_DIR exported before the first gh api, and forbid executing
   repository code via relative paths or interpreters (the pool cwd is the
   reused $GITHUB_WORKSPACE). Applied to both the review and triage gate
   tests. Mutation-witnessed: an unguarded one-liner, a relocated preamble,
   and an appended `node ./…` line each red the tests.

Tests: qwen-pr-review-workflow.test.js 271, qwen-triage-workflow.test.mjs 131,
ci-runner-routing.test.mjs 103 — all pass; prettier + ESLint clean.

* fix(ci): supply RUNNER_TEMP to the triage gate replay tests; harden the gate pins

R4-1 (Critical): the new ${RUNNER_TEMP} gh-config preamble is the first
RUNNER_TEMP reference in the triage permission step, and three replay
harnesses in scripts/tests/qwen-triage-workflow.test.js execute that body
verbatim without setting RUNNER_TEMP — off-CI (npm run test:scripts) the
fail-closed guard exits 1 before writing should_run. Set RUNNER_TEMP to each
harness's existing mkdtempSync dir (the :1773 precedent); the workflow's
fail-closed guard is unchanged. Verified: the file is red under
`env -u RUNNER_TEMP` before and 203/203 green after; dropping the line reds it
again. (The review named two harnesses; running the full file surfaced a third.)

Also clear the round-4 deferred notes:
- R4-2: the /verify ack comment no longer promises a receipt "even when the
  sandbox lane is backed up" — the gate now also queues with the pool.
- R4-3/R4-4: the triage routing pin is now an exact expression equality, the
  step inventory is pinned, and PAT-bearing steps are identified by env
  GH_TOKEN rather than gh subcommand spelling.
- R3-1: tighten the no-repository-code deny-list (quote boundaries +
  interpreter as a word) so `bash -c './x.sh'` no longer slips past;
  mutation-witnessed in both the review and triage gate tests.

Tests: triage vitest 203 (off-CI), triage .mjs 131, review vitest 271,
ci-runner-routing 103 — all pass; prettier + ESLint clean; size gate green.

* fix(ci): correct the gate-routing narrative; close the round-5 verify gaps

R5-1 / F1 (narrative): the motivating incident is a /resolve, whose
end-to-end latency this PR does not change — resolve-pr stays on
ubuntu-latest, so only the gate wait is removed. State this in both
design-doc languages and the pinning test comment; the saving lands on
/review, /triage, /tmux, /verify (pool-routed downstream). Correct the
"cancelled without ever running" sentence to the run's timeline (resolve-pr
started when the gate finished and was cancelled ~29m36s later).

S1: the no-repository-code deny-list missed absolute-path interpreters
(/usr/bin/node x.js) and versioned Python (python3.11 x.py); widen the regex
(optional path prefix + python[0-9.]*) in both gate tests. Mutation-witnessed:
both previously-surviving mutants now red, clean tree green.

S2: each hardened gh step minted a $RUNNER_TEMP/*gh-config.* dir that nothing
removed; add trap 'rm -rf "$GH_CONFIG_DIR"' EXIT to all four steps (RUNNER_TEMP
survives between jobs on the pool).

S3: record the exact final workflow sizes in .size-baseline.

Tests: triage vitest 203 (off-CI, RUNNER_TEMP unset), review vitest 271,
triage .mjs 131, ci-runner-routing 103 — all pass; prettier + ESLint clean;
size gate green.

* fix(ci): pin the no-repository-code invariant on every triage gate step

The triage gate meta-test applied the relative-path/interpreter denylist only to PAT-bearing steps, so a repository-code execution line added to the credential-free budget step survived the suite (witnessed by mutation). The no-repository-code invariant is a job-wide safety premise of the ECS routing: even a credential-free step that runs a planted file leaves a survivor on the persistent host. Pin it on every step's comment-stripped live lines, and align both design-doc versions with the widened coverage and the witnessed mutation set.

Co-authored-by: Qwen-Coder <[email protected]>

* docs(ci): correct the routing-matrix coverage claim for the triage gate

The validation plan said the triage gate is pinned by the triage meta-test AND the ci-runner-routing matrix, but the matrix never reads either authorize job (it pins the sibling pool jobs). State the actual coverage in both language versions.

Co-authored-by: Qwen-Coder <[email protected]>

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Co-authored-by: Qwen-Coder <[email protected]>
2026-11-07 13:47:42 +00:00
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