actions-security SKILL.md skillA
actions-security from bitwise-media-group/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bitwise-media-group/skills/actions-security@git:20260816.3aca11fPins git:20260816.3aca11f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bitwise-media-group/skills
- Path
plugins/actions/skills/actions-security/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260816.3aca11f, committed Aug 16, 2026
- First version recorded
- Jul 1, 2026
- Size
- 5,161 bytes
- Repository stars
- 3
- License
- MIT
Security hardening for GitHub Actions workflows with a least-privilege posture — default-deny permissions ({} then minimal per-job scopes), SHA-pinning every third-party action, avoiding pull_request_target (and the safe trusted-event allowlist pattern when an elevated trigger is unavoidable), preventing expression/script injection via env indirection, explicit secrets (no inherit), and OIDC over long-lived keys. Use when writing or reviewing GitHub Actions workflows for security, locking down…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# GitHub Actions security posture
A reusable workflow cannot constrain how a consumer wires its trigger, and a CI workflow runs on
code a stranger proposed. Treat every workflow as reachable by an untrusted contributor and apply
least privilege. These rules are enforced mechanically by the `actions-validate` skill (actionlint +
zizmor) and CodeQL; the authoring conventions they assume live in `actions-style`. For attack
anatomy and extended examples, see [reference.md](reference.md).
## 1. Default-deny permissions
Declare `permissions: {}` at the top level and grant each job only the scopes it needs. Never use
`permissions: write-all`, and never rely on the repository default token (it can be broad).
```yaml
permissions: {} # deny everything by default
jobs:
build:
permissions:
contents: read # the minimum: check out the repo
```
A job that uploads code-scanning results adds `security-events: write`; one that comments on a PR
adds `pull-requests: write`. Grant at the job level so a compromised step holds only that job's
token. A reusable workflow's jobs can never exceed the **caller's** grant — keep that ceiling tight.
…Read the whole file at its exact version.
How to install
mdr add bitwise-media-group/skills/actions-security@sha256:cdcded4e69a775e0The line at the top of this page pins the label git:20260816.3aca11f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_kxvp3w3atwa6xllz)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 1, 2026 and Aug 16, 2026, about one every 47 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260816.3aca11f latest | 2026-08-16 | 3aca11f | 5,161 B | A | view · diff |
| git:20260701.6f09c20 | 2026-07-01 | 6f09c20 | 5,227 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5161 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
bitwise-media-group/skills · 3 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_kxvp3w3atwa6xllz GET https://markdownregistry.com/api/v1/resolve?ref=bitwise-media-group/skills/actions-security GET https://markdownregistry.com/api/v1/blob/cdcded4e69a775e0e2fc46fd81287af7c8ede194e475551e31f105692f694318
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.