Skill v1.0.0

version: "1.0.0" name: "ci-validation-gates" description: "Defensive CI/CD patterns: semver validation, token checks, retry logic, draft detection — earned from v0.8.22" domain: "ci-cd" confidence: "high" source: "extracted from Drucker and Trejo charters — earned knowledge from v0.8.22 release incident"

Context

CI workflows must be defensive. These patterns were learned from the v0.8.22 release disaster where invalid semver, wrong token types, missing retry logic, and draft releases caused a multi-hour outage. Both Drucker (CI/CD) and Trejo (Release Manager) carried this knowledge in their charters — now centralized here.

Patterns

Semver Validation Gate

Every publish workflow MUST validate version format before npm publish. 4-part versions (e.g., 0.8.21.4) are NOT valid semver — npm mangles them.

- name: Validate semver
  run: |
    VERSION="${{ github.event.release.tag_name }}"
    VERSION="${VERSION#v}"
    if ! npx semver "$VERSION" > /dev/null 2>&1; then
      echo "❌ Invalid semver: $VERSION"
      echo "Only 3-part versions (X.Y.Z) or prerelease (X.Y.Z-tag.N) are valid."
      exit 1
    fi
    echo "✅ Valid semver: $VERSION"

NPM Token Type Verification

NPM_TOKEN MUST be an Automation token, not a User token with 2FA:

• User tokens require OTP — CI can't provide it → EOTP error
• Create Automation tokens at npmjs.com → Settings → Access Tokens → Automation
• Verify before first publish in any workflow

Retry Logic for npm Registry Propagation

npm registry uses eventual consistency. After npm publish succeeds, the package may not be immediately queryable.

• Propagation: typically 5-30s, up to 2min in rare cases
• All verify steps: 5 attempts, 15-second intervals
• Log each attempt: "Attempt 1/5: Checking package..."
• Exit loop on success, fail after max attempts

- name: Verify package (with retry)
  run: |
    MAX_ATTEMPTS=5
    WAIT_SECONDS=15
    for attempt in $(seq 1 $MAX_ATTEMPTS); do
      echo "Attempt $attempt/$MAX_ATTEMPTS: Checking $PACKAGE@$VERSION..."
      if npm view "$PACKAGE@$VERSION" version > /dev/null 2>&1; then
        echo "✅ Package verified"
        exit 0
      fi
      [ $attempt -lt $MAX_ATTEMPTS ] && sleep $WAIT_SECONDS
    done
    echo "❌ Failed to verify after $MAX_ATTEMPTS attempts"
    exit 1

Draft Release Detection

Draft releases don't emit release: published event. Workflows MUST:

• Trigger on release: published (NOT created)
• If using workflow_dispatch: verify release is published via GitHub API before proceeding

Build Script Protection

Set SKIP_BUILD_BUMP=1 (or $env:SKIP_BUILD_BUMP = "1" on Windows) before ANY release build. bump-build.mjs is for dev builds ONLY — it silently mutates versions.

Known Failure Modes (v0.8.22 Incident)

Anti-Patterns

• ❌ Publishing without semver validation gate
• ❌ Single-shot verification without retry
• ❌ Hard-coded secrets in workflows
• ❌ Silent CI failures — every error needs actionable output with remediation
• ❌ Assuming npm publish is instantly queryable