GitHub Actions Workflow Hardening Audit

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name: github-actions-workflow-hardening-audit description: Audit GitHub Actions workflow files for hardening gaps (missing timeouts/permissions/concurrency and floating action refs). version: 1.1.0 metadata: {"openclaw":{"requires":{"bins":["bash","python3"]}}}

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GitHub Actions Workflow Hardening Audit

Use this skill to statically audit .github/workflows/*.yml files before risky defaults leak into production CI.

What this skill does

Scans workflow YAML files and scores hardening risk per file

Flags jobs missing timeout-minutes

Flags missing permissions declarations (workflow-level or job-level)

Optionally flags missing concurrency controls

Flags floating uses: refs (@main, @master, @latest, major-only tags like @v4)

Supports file/event regex filtering for targeted triage in large monorepos

Raises severity (ok / warn / critical) and can fail CI gates

Inputs

Optional:

WORKFLOW_GLOB (default: .github/workflows/*.y*ml)

TOP_N (default: 20)

OUTPUT_FORMAT (text or json, default: text)

WARN_SCORE (default: 3)

CRITICAL_SCORE (default: 7)

REQUIRE_TIMEOUT (0/1, default: 1)

REQUIRE_PERMISSIONS (0/1, default: 1)

REQUIRE_CONCURRENCY (0/1, default: 0)

FLAG_FLOATING_REFS (0/1, default: 1)

ALLOW_REF_REGEX (regex whitelist for approved refs, optional)

WORKFLOW_FILE_MATCH (regex include filter on file path, optional)

WORKFLOW_FILE_EXCLUDE (regex exclude filter on file path, optional)

EVENT_MATCH (regex include filter on parsed on: triggers, optional)

EVENT_EXCLUDE (regex exclude filter on parsed on: triggers, optional)

FAIL_ON_CRITICAL (0 or 1, default: 0)

Run

Text report:

WORKFLOW_GLOB='.github/workflows/*.y*ml' \
bash skills/github-actions-workflow-hardening-audit/scripts/workflow-hardening-audit.sh

JSON output + fail gate:

WORKFLOW_GLOB='.github/workflows/*.y*ml' \
OUTPUT_FORMAT=json \
REQUIRE_CONCURRENCY=1 \
FAIL_ON_CRITICAL=1 \
bash skills/github-actions-workflow-hardening-audit/scripts/workflow-hardening-audit.sh

Filter to only PR-target workflows:

WORKFLOW_GLOB='.github/workflows/*.y*ml' \
EVENT_MATCH='pull_request_target' \
FAIL_ON_CRITICAL=1 \
bash skills/github-actions-workflow-hardening-audit/scripts/workflow-hardening-audit.sh

Run against bundled fixtures:

WORKFLOW_GLOB='skills/github-actions-workflow-hardening-audit/fixtures/*.y*ml' \
bash skills/github-actions-workflow-hardening-audit/scripts/workflow-hardening-audit.sh

Output contract

Exit 0 in report mode (default)

Exit 1 when FAIL_ON_CRITICAL=1 and one or more workflows are critical

Text mode prints summary + ranked workflow risks

JSON mode prints summary + ranked workflows + critical workflows