security-hardening SKILL.md skillA
security-hardening from swyxio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add swyxio/skills/security-hardening@git:20260824.0a89658Pins git:20260824.0a89658 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- swyxio/skills
- Path
security-hardening/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260824.0a89658, committed Aug 24, 2026
- First version recorded
- May 22, 2026
- Size
- 3,846 bytes
- Repository stars
- 194
- License
- MIT
Audit or harden a defined application-security attack surface when the user explicitly requests a security audit, vulnerability investigation, or scoped security-hardening pass. Do not trigger for routine authentication changes, role design, scoped permissions, ordinary authorization bugs, dependency updates, generic production readiness, or feature implementation with incidental security implications.
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
# Security Hardening Use this skill for pragmatic appsec work that produces prioritized fixes and residual-risk notes. Do not turn it into a compliance theater exercise. ## Counterweight: threat before control - Start with assets, trust boundaries, attacker capability, exposure, and plausible abuse paths. Do not apply the checklist uniformly. - Add or change a control only for a concrete reachable risk. Record when framework or provider defaults already cover it. - Prefer removing exposure, privilege, data, or code over adding middleware, policy layers, scanners, and monitoring. - Do not add rate limits, CORS/CSRF machinery, headers, runtime schemas, encryption, secret rotation, or dependency upgrades where the threat model does not require them. - Preserve one authorization source of truth; do not duplicate permission checks across artificial layers. - Avoid speculative findings based only on pattern matches. Confirm actual callers, deployment topology, and runtime behavior. - Keep fixes focused. Do not turn one vulnerability into a repo-wide security program, compliance project, dependency refresh, or release ceremony. …
Read the whole file at its exact version.
How to install
mdr add swyxio/skills/security-hardening@sha256:6e95eb2db0cd1e89The line at the top of this page pins the label git:20260824.0a89658, 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_aya2aencxqa2hajt)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 22, 2026 and Aug 24, 2026, about one every 47 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260824.0a89658 latest | 2026-08-24 | 0a89658 | 3,846 B | A | view · diff |
| git:20260809.02acf6b | 2026-08-09 | 02acf6b | 3,951 B | A | view · diff |
| git:20260522.ba97b05 | 2026-05-22 | ba97b05 | 2,548 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 (3846 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
swyxio/skills · 194 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_aya2aencxqa2hajt GET https://markdownregistry.com/api/v1/resolve?ref=swyxio/skills/security-hardening GET https://markdownregistry.com/api/v1/blob/6e95eb2db0cd1e890182160f2f31356fd8f4a1cc3aca5ee7a5ff2b977c89ab78
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.