Borrowing it
Nothing to install: this file belongs to SumonMSelim/agentguard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/SumonMSelim/agentguard/main/CLAUDE.mdgit clone --depth 1 https://github.com/SumonMSelim/agentguardWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/sumonmselim/agentguard/claude-md)<a href="https://agentmods.dev/instructions/sumonmselim/agentguard/claude-md"><img src="https://agentmods.dev/badge/instructions/sumonmselim/agentguard/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/sumonmselim/agentguard/claude-md"><img src="https://agentmods.dev/badge/instructions/sumonmselim/agentguard/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.04774 | $0.04774 |
| Opus 5.5 | $0.01910 | $0.01910 |
| Sonnet 5.5 | $0.00955 | $0.00955 |
| Haiku 4.5 | $0.00477 | $0.00477 |
Grade D, and why
agentguard CLAUDE.md scanned grade D with 3 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 18d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
| `block-destructive-ops.sh` | `rm` on `/`, `~` or `$HOME`; recursive `rm` of `.`, `..`, `.git`, `*` or a system dir; `find / -delete`; recursive `chmod`/`chown` on root or home; `mkfs`/`dd`/raw disk writes; overwriting Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
agentguard installs security guardrails for AI coding agents (Claude Code, Kiro, Cursor, Codex, Grok, Gemini CLI, GitHub Copilot CLI, Windsurf, Google Antigravity CLI). Enforces rules at shell hook level — not just instr Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| `block-destructive-ops.sh` | `rm` on `/`, `~` or `$HOME`; recursive `rm` of `.`, `..`, `.git`, `*` or a system dir; `find / -delete`; recursive `chmod`/`chown` on root or home; `mkfs`/`dd`/raw disk writes; overwriting How it starts
The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Guidance for Claude Code (claude.ai/code) working in this repo.
What this repo is
agentguard installs security guardrails for AI coding agents (Claude Code, Kiro, Cursor, Codex, Grok, Gemini CLI, GitHub Copilot CLI, Windsurf, Google Antigravity CLI). Enforces rules at shell hook level — not just instructions. Install target: user home (~/.claude/, ~/.kiro/, ~/.codex/, ~/.grok/, ~/.gemini/, ~/.copilot/, ~/.codeium/windsurf/, ~/.gemini/config/) or project dir (.cursor/), not this repo.
Commands
Preferred: Use the agentguard command (installed by the wrapper or packages).
# Install / manage guardrails
agentguard claude # Claude Code (global)
agentguard kiro # Kiro (global)
agentguard codex # Codex (global, ~/.codex)
agentguard grok # Grok
agentguard gemini # Gemini CLI (global, ~/.gemini)
agentguard copilot # GitHub Copilot CLI (global, ~/.copilot)
agentguard windsurf # Windsurf Cascade (global, ~/.codeium/windsurf)
agentguard antigravity # Google Antigravity CLI (global, ~/.gemini/config + ~/.gemini/AGENTS.md)
agentguard cursor # Cursor (project-local, run from CWD)
agentguard cursor --user # Cursor user-level hooks (~/.cursor, all projects)
agentguard all # All agents
agentguard claude --dry-run # Preview without writing
agentguard claude --skills go,aws # With specific skill packs
agentguard cursor --skills go,aws # Cursor full install + skills
agentguard claude --project --skills go # Append skills to CWD only (no hooks)
# Uninstall / check
agentguard uninstall claude
agentguard uninstall claude --dry-run
agentguard check claude
agentguard check all
# Audit log (reads audit.log.1 + audit.log; default agent all, --tail 50)
agentguard log
agentguard log claude --blocked --since 2h --tail 20
# Doctor (install check + agent binary + activation hints + audit activity; default: tracked agents)
agentguard doctor
agentguard doctor codex
# Bootstrap (one time only, from a fresh clone — this installs the `agentguard` CLI wrapper)
# ./install.sh claude # after this, use `agentguard claude` etc. for everything
# Tests
bash tests/run_all.sh # All suites
bash tests/claude.sh # Hook logic + Claude install check
bash tests/claude.sh hooks # Hook logic only
bash tests/claude.sh install # Install check only
bash tests/check-sync.sh # Assert instruction files are in sync
bash tests/install.sh # Install / merge edge cases
bash tests/bypass.sh # Bypass regression suite
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 18d ago Changed · +10 lines · +193 tokens per session c376f14af403
- 19d ago Changed · +30 lines · +3,092 tokens per session scan F → D 4b828f6a2cf3
- 1mo ago First seen · 101 lines · 1,489 tokens per session scan F 9ba6d3a5eef1
agentguard CLAUDE.md is an instructions file published in the GitHub repository SumonMSelim/agentguard (54 stars, last pushed 14d ago), licensed MIT. It adds 4,774 tokens to every session, about $0.0191 per session on Opus 5.5. A static security scan graded it D with 3 findings (downloads and executes remote code, reads agent configuration directories, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.