agent-guardrails SKILL.md skillC
agent-guardrails from milad-ahmd/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add milad-ahmd/agent-skills/agent-guardrails@git:20261101.0c5f460Pins git:20261101.0c5f460 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 15 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- milad-ahmd/agent-skills
- Path
skills/agent-guardrails/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261101.0c5f460, committed Nov 1, 2026
- Size
- 5,932 bytes
- Repository stars
- 5
- License
- MIT
Installs and tests guardrails that stop a coding agent from running destructive or leaking shell commands. Adds a Claude Code PreToolUse hook on Bash that denies or asks before force pushes to main/master, pushes and commits on main, git reset --hard and git clean -fdx, rm -rf of /, ~, .. or paths outside the project, reading .env files, SSH keys and cloud credentials, curl or wget piped to bash, DROP TABLE and TRUNCATE through psql/mysql/sqlite3, chmod -R 777, and --no-verify. Parses chains…
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
# Agent Guardrails A seatbelt for coding agents: a hook that reads each shell command before it runs and denies or asks on the handful of commands that cause real damage. It reads command text only, so it is not a sandbox. Treat it as one layer next to permission rules, branch protection and backups. ## 1. Show the rules and run the self-test ```bash python3 scripts/guardrails.py rules # id, decision (deny or ask), what it blocks, why python3 scripts/guardrails.py test # ~60 sample commands, dangerous ones and harmless look-alikes python3 scripts/guardrails.py check "git push -f origin main" # one command: exit 0 allow, 3 ask, 4 deny ``` `deny` blocks the call and the reason goes to the agent. `ask` shows the user a permission prompt with the reason. Harmless commands get no output, so Claude Code's normal permission flow still applies (the hook never auto-approves anything). Tell the user which rules will be on, and ask about the ones that may be noisy for them: `commit-protected` asks on every commit while on main, which suits teams but annoys solo repos; `rm-outside-project` denies `rm -rf ../sibling-repo`. ## 2. Install (Claude Code) …
Read the whole file at its exact version.
How to install
mdr add milad-ahmd/agent-skills/agent-guardrails@sha256:1692bdbde2634dd0The line at the top of this page pins the label git:20261101.0c5f460, 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_fawwyjttc2xrqbc3)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Nov 1, 2026.
Audit of the latest version
- fail: No recursive delete of root, home or parent (matched: rm -rf ../)
- fail: No instruction to read or print local credentials (matched: Read tool can still open `.env)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5932 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 base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
milad-ahmd/agent-skills · 5 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fawwyjttc2xrqbc3 GET https://markdownregistry.com/api/v1/resolve?ref=milad-ahmd/agent-skills/agent-guardrails GET https://markdownregistry.com/api/v1/blob/1692bdbde2634dd0392dd8b1b7a3eec951d952950c37591dfd11f1e67107fe26
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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