Borrowing it
Nothing to install: this file belongs to mgiovani/cc-arsenal. 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/mgiovani/cc-arsenal/main/AGENTS.mdgit clone --depth 1 https://github.com/mgiovani/cc-arsenalWrote 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/mgiovani/cc-arsenal/agents-md)<a href="https://agentmods.dev/instructions/mgiovani/cc-arsenal/agents-md"><img src="https://agentmods.dev/badge/instructions/mgiovani/cc-arsenal/agents-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/mgiovani/cc-arsenal/agents-md"><img src="https://agentmods.dev/badge/instructions/mgiovani/cc-arsenal/agents-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 | $0.03339 | $0.03339 |
| Opus 5.5 | $0.01336 | $0.01336 |
| Sonnet 5.5 | $0.00668 | $0.00668 |
| Haiku 4.5 | $0.00334 | $0.00334 |
Grade A, and why
cc-arsenal AGENTS.md scanned grade A with 0 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 14d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This is the canonical, tool-agnostic guidance file for cc-arsenal. Any AGENTS.md-aware tool reads it natively, including Codex, Cursor, Copilot, Gemini CLI and OpenCode. Claude Code does not read this file directly; CLAUDE.md imports it via @AGENTS.md and adds Claude-Code-only content on top.
Repository Architecture
cc-arsenal is a collection of 52 Agent Skills (agentskills.io open standard) for development workflow automation. skills/ is the single canonical tier: every skill lives there once, written tool-neutral, and any tool that speaks the Agent Skills format can load it directly.
Core Components
- Skills (
skills/): 52 skills covering development, code review, documentation, git/GitHub, jira, browser automation, project planning, product specs, multi-agent orchestration, open-source launch prep, and skill discovery/creation/improvement - Scripts (
scripts/): Python utilities for installation and configuration, plus code generation (Claude-Code-specific; seeCLAUDE.md) - Integrations (
integrations/): agent-CLI-specific tooling that doesn't fit the tool-agnosticskills/tier, one subdirectory per agent CLI. Today that'sintegrations/claude-code/, holding the statusline and theclaude-hisession scheduler; future agent CLIs (Codex, Gemini CLI, ...) get sibling directories alongside it as their own tooling needs arise.
Install in any agent
# Any Agent-Skills-compatible tool (Codex, Cursor, Gemini CLI, OpenCode, ...)
npx skills add mgiovani/cc-arsenal
npx skills is the skills.sh CLI: it copies each skill into the target tool's own skills directory, no plugin system required.
Using Claude Code? See CLAUDE.md for the plugin marketplace install and plugin variants, plus other Claude-Code-only extras.
Portability convention
Skills in this repo are written tool-neutral first:
- Only
nameanddescriptionfrontmatter are required for a skill to work anywhere. - Claude-Code-only frontmatter keys (
disable-model-invocation,hooks,context,agent) are enhancement layers. Other tools ignore unknown frontmatter keys safely: a skill's correctness must never depend on them being honored. - No skill declares
allowed-tools: in Claude Code it only pre-approves tools for the turn that invokes the skill and restricts nothing, so it adds a permission grant users must vet without making anything safer. Users who want fewer prompts add allow rules to their own settings. - Orchestration skills (those that spawn subagents/parallel tasks in Claude Code) degrade gracefully to sequential inline execution when no subagent/task tool exists. The instructions describe the sequential fallback explicitly rather than assuming Task/Agent tools are always present.
- Paths and shell commands referenced inside a skill must be real, tool-independent commands (e.g.
git,gh,make): never a Claude-Code-only tool name used as if it were a shell command.
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.
- 14d ago Changed · +2 lines · +95 tokens per session d362ae7a5230
- 18d ago Changed · +1 lines · +39 tokens per session a6ff20dea4f8
- 19d ago Changed · +1 lines · +30 tokens per session c0c33951bebe
- 24d ago Changed · +1 lines · -27 tokens per session fc1af465e409
- 25d ago Changed · -6 lines · -146 tokens per session cc6714a04798
- 1mo ago Changed · -683 tokens per session 27b1704db45f
- 1mo ago Changed · +2 lines · +60 tokens per session 67db84a238e3
- 1mo ago First seen · 241 lines · 3,971 tokens per session scan A 98e8e1d6235a
cc-arsenal AGENTS.md is an instructions file published in the GitHub repository mgiovani/cc-arsenal (8 stars, last pushed 12d ago), licensed MIT. It adds 3,339 tokens to every session, about $0.0134 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.