Phase 3: canvas smoke-test evidence and weekly review metrics (#4184) (#4191)

* Phase 3: canvas smoke-test evidence, safe auto-merge, and weekly review metrics (#4184)

Adds the canvas-smoke-test check with review evidence, a config-gated safe auto-merge workflow (disabled by default), and a weekly review operating metrics workflow, plus maintainer docs.

Refs github/awesome-copilot#4184

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Trigger safe auto-merge sweep after Submission Gate Writer completes

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Rename thirdParty identifier to satisfy codespell

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Address Copilot review on canvas smoke test, auto-merge, and metrics

- Bind canvas report writer to the triggering workflow_run PR (base/head repo, ref, SHA)
- Bound PNG inflation by IHDR-derived size and a decoded-bytes budget
- Classify file: URLs as unsafe manifest paths
- Follow CommonJS require() and literal dynamic imports; error on missing
  reachable targets and devDependency-only runtime imports
- Validate removed extension paths and orphaned plugins instead of skipping
- Warn on .py/.rb/.pl scripts
- Auto-merge: support CODEOWNERS teams (fail closed), front matter authors,
  list PRs by head SHA, only fall back to direct merge on clean status,
  drop ineffective check_run trigger
- Metrics: ignore reviews before the PR was ready for review

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Docs: note microsoft/azure-dev-tools as a portable marketplace for the review model

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Auto-merge: only trust submission-gate runs from the Submission Gate Writer

Adds trusted_checks (default submission-gate -> external_id
submission-gate-writer). Any other check run or status with that name on the
head SHA blocks arming, so a PR-defined job cannot satisfy the gate.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Harden canvas smoke-test checker

- String-, template-, and regex-aware comment stripping so literals containing // cannot hide imports
- Never follow symlinks or read non-regular files; bounded, contained reads
- Validate plugins whose plugin.json was deleted
- Reject unsafe extension IDs in plugin manifests before materialization

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Phase 3: remove auto-merge, isolate canvas smoke test, harden checker

- Remove safe auto-merge (config, workflow, script, tests, labels) per
  maintainer review; documented as deferred pending a security review.
- Restore validate-canvas-extensions.yml to main and move the smoke test
  to its own canvas-smoke-test.yml workflow scoped to extensions/**.
- Reject duplicate IHDR chunks in preview PNGs.
- Mask string/template/regex literal contents before extracting dynamic
  import() and require() specifiers.
- Resolve package.json imports aliases through the same classifier and
  module graph; fail closed on alias shapes that cannot be analyzed.
- Rename docs to canvas-evidence-and-metrics.md and update references.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Fix canvas smoke and review metrics findings

- Trigger canvas smoke tests for plugin changes while skipping expensive setup when target detection finds no canvas coverage.
- Fail reachable data: imports while preserving warnings for unreachable module data: imports.
- Use base plugin manifests for deleted bundle plugin detection and fail closed when base manifests cannot be read.
- Paginate GraphQL PR review pages before computing weekly review metrics.
- Report workflow run API collection errors as incomplete automation health instead of not found.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Address follow-up canvas review findings

Fail closed on non-literal runtime imports, require canonical PNG termination, restrict comment updates to github-actions[bot], and paginate external-plugin label events.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Aaron Powell <me@aaron-powell.com>
This commit is contained in:
James Montemagno
2026-10-07 16:36:13 +11:00
committed by GitHub
co-authored by Copilot App Aaron Powell
parent b30b12e40e
commit d82df27473
12 changed files with 4142 additions and 0 deletions
+61
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# Weekly review operating metrics (github/awesome-copilot#4184, phase 3).
#
# Read by eng/review-metrics.mjs, which .github/workflows/review-metrics.yml
# runs every Monday. See docs/maintainers/canvas-evidence-and-metrics.md.
# Days of activity summarized in each report.
window_days: 7
# Review targets, in business days (weekends are skipped).
targets_business_days: [2, 4]
# Base branch for contribution PRs.
base_branch: main
# State labels (maintained by the submission gate). Open PRs without any of
# these are reported as "unlabeled".
state_labels:
- awaiting-automation
- requires-submitter-fixes
- ready-for-review
- review-in-progress
- approved
# Risk tier labels. Open PRs without any of these are "unclassified".
risk_labels:
- merge-risk:low
- merge-risk:medium
- merge-risk:high
# External plugin submission issues are tracked alongside PRs.
external_plugin_label: external-plugin
external_plugin_state_labels:
- awaiting-review
- requires-submitter-fixes
- ready-for-review
- awaiting-approval
# Review-automation workflows whose failed/errored runs count toward the
# automation failure rate. Files that do not exist yet are reported as
# "not found" and skipped, so later phases can be listed ahead of time.
automation_workflows:
- submission-gate.yml
- submission-gate-writer.yml
- review-routing.yml
- canvas-smoke-test.yml
- canvas-smoke-test-comment.yml
- pr-risk-scan.yml
- pr-risk-scan-comment.yml
- label-pr-intent.yml
- label-pr-intent-writer.yml
- check-plugin-structure.yml
- external-plugin-intake.yml
- external-plugin-quality-gates.yml
- external-plugin-pr-quality-gates.yml
- external-plugin-pr-quality-gates-writer.yml
- external-plugin-command-router.yml
# Tracking issue that receives the weekly report.
tracking_issue:
title: Review operating metrics
label: review-metrics
@@ -0,0 +1,157 @@
name: Canvas Smoke Test — Comment
# Writer half of the canvas-smoke-test reader/writer split. The reader
# (canvas-smoke-test.yml) runs on untrusted PR code with a read-only
# token; this workflow only reads its artifact and never checks out PR code.
on:
workflow_run:
workflows: ["Canvas Smoke Test"]
types: [completed]
permissions:
actions: read
issues: write
pull-requests: write
jobs:
comment:
runs-on: ubuntu-latest
if: github.event.workflow_run.event == 'pull_request'
steps:
- name: Download review artifact
id: download
continue-on-error: true
uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
with:
name: canvas-smoke-test-results
run-id: ${{ github.event.workflow_run.id }}
github-token: ${{ github.token }}
- name: Upsert PR comment
uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
with:
script: |
const fs = require('fs');
const marker = '<!-- canvas-smoke-test -->';
if (!fs.existsSync('report.md')) {
core.info('No canvas smoke test report artifact found. Skipping.');
return;
}
let status = 'unknown';
try {
status = JSON.parse(fs.readFileSync('results.json', 'utf8')).status || 'unknown';
} catch {
core.warning('results.json is missing or invalid.');
}
const workflowRun = context.payload.workflow_run;
const artifactPr = fs.existsSync('pr-number.txt') ? fs.readFileSync('pr-number.txt', 'utf8').trim() : '';
const prNumber = /^[1-9][0-9]*$/.test(artifactPr) ? Number(artifactPr) : workflowRun.pull_requests?.[0]?.number;
if (!prNumber) {
core.warning('Could not determine PR number. Skipping.');
return;
}
// The artifact is untrusted: bind the target PR to the triggering run
// (base repo, head repo/ref/SHA, and a unique association) before writing.
const { data: pr } = await github.rest.pulls.get({
owner: context.repo.owner,
repo: context.repo.repo,
pull_number: prNumber,
});
if (pr.state !== 'open') {
core.info(`Skipping non-open PR #${prNumber}.`);
return;
}
const expectedBaseRepository = `${context.repo.owner}/${context.repo.repo}`.toLowerCase();
const runHeadRepository = String(workflowRun.head_repository?.full_name || '');
const runHeadRepositoryParts = runHeadRepository.split('/');
const runHeadRef = String(workflowRun.head_branch || '');
if (String(pr.base?.repo?.full_name || '').toLowerCase() !== expectedBaseRepository) {
core.setFailed(`PR #${prNumber} does not target this repository.`);
return;
}
if (pr.head.sha !== workflowRun.head_sha) {
core.info(`PR #${prNumber} head ${pr.head.sha} does not match run head ${workflowRun.head_sha}. Skipping stale or mismatched report.`);
return;
}
if (
runHeadRepositoryParts.length !== 2 ||
!runHeadRepositoryParts[0] ||
!runHeadRepositoryParts[1] ||
!runHeadRef ||
String(pr.head?.repo?.full_name || '').toLowerCase() !== runHeadRepository.toLowerCase() ||
String(pr.head?.ref || '') !== runHeadRef
) {
core.setFailed(`PR #${prNumber} head repository/ref did not match workflow_run.`);
return;
}
const workflowRunPullRequests = Array.isArray(workflowRun.pull_requests) ? workflowRun.pull_requests : [];
if (workflowRunPullRequests.length > 0) {
if (!workflowRunPullRequests.some((pullRequest) => pullRequest.number === prNumber)) {
core.setFailed(`PR #${prNumber} was not present in workflow_run.pull_requests.`);
return;
}
} else {
const candidatePullRequests = await github.paginate(github.rest.pulls.list, {
owner: context.repo.owner,
repo: context.repo.repo,
state: 'open',
head: `${runHeadRepositoryParts[0]}:${runHeadRef}`,
per_page: 100,
});
const trustedMatches = candidatePullRequests.filter((candidate) =>
candidate.head?.sha === workflowRun.head_sha &&
String(candidate.head?.ref || '') === runHeadRef &&
String(candidate.head?.repo?.full_name || '').toLowerCase() === runHeadRepository.toLowerCase() &&
String(candidate.base?.repo?.full_name || '').toLowerCase() === expectedBaseRepository
);
if (trustedMatches.length !== 1 || trustedMatches[0].number !== prNumber) {
core.setFailed(`PR #${prNumber} could not be uniquely associated with workflow_run.`);
return;
}
}
let body = fs.readFileSync('report.md', 'utf8').replace(/@/g, '@\u200b');
const maxLength = 65000;
if (body.length > maxLength) {
body = `${body.slice(0, maxLength)}\n\n_...(truncated)..._`;
}
if (!body.includes(marker)) {
body = `${marker}\n${body}`;
}
const comments = await github.paginate(github.rest.issues.listComments, {
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: prNumber,
per_page: 100,
});
const existing = comments.find((comment) =>
comment.user?.login === 'github-actions[bot]' && comment.body?.includes(marker));
if (status === 'skipped' && !existing) {
core.info('No canvas changes and no previous comment. Nothing to post.');
return;
}
if (existing) {
await github.rest.issues.updateComment({
owner: context.repo.owner,
repo: context.repo.repo,
comment_id: existing.id,
body,
});
core.info(`Updated canvas smoke test comment ${existing.id}`);
} else {
await github.rest.issues.createComment({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: prNumber,
body,
});
core.info('Created canvas smoke test comment');
}
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name: Canvas Smoke Test
# Reader half of the canvas-smoke-test reader/writer split. Runs untrusted PR
# content with a read-only token and no secrets; extension code is parsed and
# compiled but never executed. canvas-smoke-test-comment.yml posts the report.
on:
pull_request:
branches: [main]
types: [opened, synchronize, reopened]
paths:
- "extensions/**"
- "plugins/**"
- ".github/workflows/canvas-smoke-test.yml"
- "eng/canvas-smoke-test.mjs"
permissions:
contents: read
concurrency:
group: canvas-smoke-test-${{ github.event.pull_request.number }}
cancel-in-progress: true
jobs:
canvas-smoke-test:
name: canvas-smoke-test
runs-on: ubuntu-latest
env:
PR_NUMBER: ${{ github.event.pull_request.number }}
HEAD_SHA: ${{ github.event.pull_request.head.sha }}
HEAD_REPO: ${{ github.event.pull_request.head.repo.full_name }}
BASE_SHA: ${{ github.event.pull_request.base.sha }}
CANVAS_PREVIEW_MIN_WIDTH: ${{ vars.CANVAS_PREVIEW_MIN_WIDTH }}
CANVAS_PREVIEW_MIN_HEIGHT: ${{ vars.CANVAS_PREVIEW_MIN_HEIGHT }}
CANVAS_RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
steps:
- name: Checkout
uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
with:
fetch-depth: 0
persist-credentials: false
- name: Setup Node.js
uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
with:
node-version: "22"
cache: "npm"
- name: Detect canvas targets
id: detect
run: |
set -euo pipefail
git diff --name-only "${BASE_SHA}...HEAD" > "${RUNNER_TEMP}/changed-files.txt"
node ./eng/canvas-smoke-test.mjs \
--changed-files "${RUNNER_TEMP}/changed-files.txt" \
--base-ref "${BASE_SHA}" \
--detect-only
- name: Write skipped report
if: steps.detect.outputs.canvas != 'true'
run: |
set -euo pipefail
mkdir -p canvas-smoke-results
printf '<!-- canvas-smoke-test -->\n## 🧩 Canvas smoke test\n\n⏭️ **Skipped** — no canvas extension or extension-bearing plugin paths changed.\n' > canvas-smoke-results/report.md
printf '{"schema_version":"canvas-smoke-test/v1","status":"skipped"}\n' > canvas-smoke-results/results.json
echo "${PR_NUMBER}" > canvas-smoke-results/pr-number.txt
echo "${HEAD_SHA}" > canvas-smoke-results/head-sha.txt
cat canvas-smoke-results/report.md >> "$GITHUB_STEP_SUMMARY"
- name: Install dependencies
if: steps.detect.outputs.canvas == 'true'
run: npm ci --ignore-scripts
- name: Install GitHub Copilot CLI
if: steps.detect.outputs.canvas == 'true'
continue-on-error: true
run: npm install -g @github/copilot
- name: Run canvas smoke test
if: steps.detect.outputs.canvas == 'true'
run: |
set -uo pipefail
export CANVAS_PREVIEW_BASE_URL="https://raw.githubusercontent.com/${HEAD_REPO}/${HEAD_SHA}/"
node ./eng/canvas-smoke-test.mjs \
--changed-files "${RUNNER_TEMP}/changed-files.txt" \
--base-ref "${BASE_SHA}" \
--install require \
--output-dir canvas-smoke-results > /dev/null
exit_code=$?
if [ ! -f canvas-smoke-results/report.md ]; then
mkdir -p canvas-smoke-results
printf '<!-- canvas-smoke-test -->\n## 🧩 Canvas smoke test\n\n⚠️ **Infrastructure error** — the checker crashed. See the workflow logs.\n' > canvas-smoke-results/report.md
echo '{"schema_version":"canvas-smoke-test/v1","status":"infra_error"}' > canvas-smoke-results/results.json
fi
echo "${PR_NUMBER}" > canvas-smoke-results/pr-number.txt
echo "${HEAD_SHA}" > canvas-smoke-results/head-sha.txt
cat canvas-smoke-results/report.md >> "$GITHUB_STEP_SUMMARY"
case "$exit_code" in
0) ;;
1) echo "::error::Canvas smoke test found contribution issues. See the job summary." ;;
*) echo "::error::Canvas smoke test hit an infrastructure error (not a contribution failure)." ;;
esac
exit "$exit_code"
- name: Upload review artifact
if: always() && hashFiles('canvas-smoke-results/report.md') != ''
uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
with:
name: canvas-smoke-test-results
path: canvas-smoke-results/
retention-days: 7
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name: Review Operating Metrics
# Publishes weekly review operating metrics (#4184) to a pinned tracking
# issue labeled `review-metrics`. Reads repository data only; the sole write is
# the tracking issue. Definitions: docs/maintainers/canvas-evidence-and-metrics.md
on:
schedule:
# Mondays 14:00 UTC, covering the previous seven days.
- cron: "0 14 * * 1"
workflow_dispatch:
inputs:
window_days:
description: "Days of activity to summarize"
required: false
default: "7"
type: string
dry_run:
description: "Only write the job summary; do not update the tracking issue"
required: false
default: false
type: boolean
permissions:
contents: read
concurrency:
group: review-metrics
cancel-in-progress: false
jobs:
metrics:
name: review-metrics
if: github.repository_owner == 'github' || github.event_name == 'workflow_dispatch'
runs-on: ubuntu-latest
timeout-minutes: 15
permissions:
contents: read
issues: write
pull-requests: read
actions: read
steps:
- name: Checkout repository
uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
with:
persist-credentials: false
- name: Setup Node.js
uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
with:
node-version: "22"
cache: npm
- name: Install dependencies
run: npm ci --ignore-scripts
- name: Compute and publish metrics
env:
GITHUB_TOKEN: ${{ github.token }}
METRICS_RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
WINDOW_DAYS: ${{ inputs.window_days || '7' }}
DRY_RUN: ${{ inputs.dry_run && 'true' || 'false' }}
run: |
set -euo pipefail
args=(--repo "$GITHUB_REPOSITORY" --window-days "$WINDOW_DAYS" --output-dir "$RUNNER_TEMP/review-metrics")
if [ "$DRY_RUN" = "true" ]; then args+=(--dry-run); fi
node ./eng/review-metrics.mjs "${args[@]}"
- name: Upload metrics
if: always()
uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
with:
name: review-metrics
path: ${{ runner.temp }}/review-metrics
if-no-files-found: ignore
retention-days: 90
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@@ -90,6 +90,11 @@ jobs:
color: 'FBCA04',
description: 'External plugin awaiting maintainer approval'
},
// Review metrics tracking label (see docs/maintainers/canvas-evidence-and-metrics.md)
'review-metrics': {
color: 'C5DEF5',
description: 'Weekly review operating metrics tracking issue'
},
// Submission gate labels (docs/maintainers/submission-gate.md).
// ready-for-review, requires-submitter-fixes, and approved are shared with intake above.
'awaiting-automation': {