GitHub Actions Failure Phase Audit

Use this skill to identify which CI/CD phase is burning the most minutes when jobs fail.

What this skill does

• Reads one or more GitHub Actions run JSON exports (gh run view --json ...)
• Detects the first non-success step per failed/cancelled/timed-out job
• Maps failures to phases: setup, build, test, lint, deploy, security, other
• Aggregates failures by repo + workflow + phase + failed step
• Ranks hotspots by impacted minutes and failure count

Inputs

Optional:

• RUN_GLOB (default: artifacts/github-actions/*.json)
• TOP_N (default: 20)
• OUTPUT_FORMAT (text or json, default: text)
• WARN_MINUTES (default: 20)
• CRITICAL_MINUTES (default: 45)
• FAIL_ON_CRITICAL (0 or 1, default: 0)
• WORKFLOW_MATCH, WORKFLOW_EXCLUDE (regex, optional)
• REPO_MATCH, REPO_EXCLUDE (regex, optional)
• BRANCH_MATCH, BRANCH_EXCLUDE (regex, optional)
• PHASE_MATCH, PHASE_EXCLUDE (regex, optional)

Collect run JSON

gh run view <run-id> --json databaseId,workflowName,headBranch,headSha,url,repository,jobs \
  > artifacts/github-actions/run-<run-id>.json

Run

Text report:

RUN_GLOB='artifacts/github-actions/*.json' \
WARN_MINUTES=15 \
CRITICAL_MINUTES=35 \
bash skills/github-actions-failure-phase-audit/scripts/failure-phase-audit.sh

JSON output + fail gate:

RUN_GLOB='artifacts/github-actions/*.json' \
OUTPUT_FORMAT=json \
FAIL_ON_CRITICAL=1 \
bash skills/github-actions-failure-phase-audit/scripts/failure-phase-audit.sh

Phase filtered report:

RUN_GLOB='artifacts/github-actions/*.json' \
PHASE_MATCH='^(test|deploy)$' \
bash skills/github-actions-failure-phase-audit/scripts/failure-phase-audit.sh

Run with bundled fixtures:

RUN_GLOB='skills/github-actions-failure-phase-audit/fixtures/*.json' \
bash skills/github-actions-failure-phase-audit/scripts/failure-phase-audit.sh

Output contract

• Exit 0 in reporting mode
• Exit 1 when FAIL_ON_CRITICAL=1 and critical hotspots exist
• Text output includes totals and ranked phase hotspots
• JSON output includes summary, hotspots, and critical_hotspots