harden SKILL.md skillA

harden from gonimar/claude-web-studio is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add gonimar/claude-web-studio/harden@git:20260927.d019450

Pins git:20260927.d019450 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
gonimar/claude-web-studio
Path
skills/harden/SKILL.md
Versions recorded
9
Latest version
git:20260927.d019450, committed Sep 27, 2026
First version recorded
Sep 10, 2026
Size
7,248 bytes
Repository stars
5
License
MIT

Hardens the runtime and perimeter — security headers/CSP, TLS/HSTS, reverse-proxy config, rate/body limits, WebSocket protections, container and network hardening, CI permissions, supply chain (update bot, SHA-pinned Actions, lockfile policy, SBOM and signing jobs), secrets hygiene — verified with live curl/scanner output; `--apply` writes the changes; docs/security/hardening-checklist.md. Use before release or after /security-audit, for 'CSP headers', 'harden the server'.

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

# Harden

Reply in the project conversation language (CLAUDE.md → Language); code, identifiers, paths and commit messages stay in English.

References: `stack-reference/security-standards.md`, `stack-reference/supply-chain.md` (checklist `SC-01…SC-12`), `security-baseline.md` (headers, network), rules `rules/ci-docker.md`, `rules/security-sensitive.md`. In the commands below, `<hooks>` is `.claude/hooks/` in copy mode and `${CLAUDE_PLUGIN_ROOT}/hooks/` in plugin mode.

**Mode** (argument, default `full`): `full` runs every checklist group of Phase 2; `headers`, `tls`, `proxy`, `docker`, `ci`, `supply-chain` narrow it to that group; `secrets` runs the rotation checklist instead. `--apply` goes on to Phase 3 without a separate "apply?" question; every file write still has its own "May I write?".

## Phase 1: Inventory
1. **Where the config lives.** Proxy configs in this repository, or in the **Infra repo / Proxy config** from `technical-preferences.md` (Infrastructure) when the proxy lives elsewhere. Also compose/Dockerfile, workflows, and where TLS terminates.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add gonimar/claude-web-studio/harden@sha256:64b9b1a8042dc48f

The line at the top of this page pins the label git:20260927.d019450, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_yocormupcsey6q3m.svg)](https://markdownregistry.com/a/art_yocormupcsey6q3m)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 9 versions of this file, between Sep 10, 2026 and Sep 27, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
git:20260927.d019450 latest2026-09-27 d019450 7,248 BA view · diff
git:20260927.cb944052026-09-27 cb94405 7,146 BA view · diff
git:20260927.be1f3bd2026-09-27 be1f3bd 7,003 BA view · diff
git:20260927.f32d8052026-09-27 f32d805 6,147 BA view · diff
git:20260926.85fc6e62026-09-26 85fc6e6 6,194 BA view · diff
git:20260926.dbae8f92026-09-26 dbae8f9 6,085 BA view · diff
git:20260926.0df99da2026-09-26 0df99da 5,794 BA view · diff
git:20260926.e6ad7932026-09-26 e6ad793 4,635 BA view · diff
git:20260910.a1cd0622026-09-10 a1cd062 3,491 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7248 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

GitHub

gonimar/claude-web-studio · 5 stars · license MIT · pushed 2026-09-27 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_yocormupcsey6q3m
GET https://markdownregistry.com/api/v1/resolve?ref=gonimar/claude-web-studio/harden
GET https://markdownregistry.com/api/v1/blob/64b9b1a8042dc48fba1a05ce1710856f8095840e8ed8630c6c6310991bb773d5

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.

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backlog SKILL.md skill
gonimar/claude-web-studio · skills/backlog/SKILL.md · Records an idea, wish or suggestion that nobody has decided to act on as one line in production/backlog.md and stops —…
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changelog SKILL.md skill
gonimar/claude-web-studio · skills/changelog/SKILL.md · Generates or updates CHANGELOG.md from Conventional Commits since the last tag (Keep a Changelog format, SemVer bump…
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gonimar/claude-web-studio · skills/code-review/SKILL.md · Reviews the branch's diff (`--diff`, the PR's changes) or given files for correctness, standards, ADR adherence, OWASP…
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