Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/mgiovani/cc-arsenal/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.svg" alt="Measured on agentmods" 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 | $0.03971 | $0.03971 |
| Opus 5 | $0.01985 | $0.01985 |
| Sonnet 5 | $0.00794 | $0.00794 |
| Haiku 4.5 | $0.00397 | $0.00397 |
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 4d 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 — 241 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, read natively by Codex, Cursor, Copilot, Gemini CLI, OpenCode, and any other AGENTS.md-aware tool. 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 53 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/): 53 skills covering development, code review, documentation, git/GitHub, jira, teams, browser automation, project planning, product specs, multi-agent orchestration, open-source launch prep, and skill discovery/creation/improvement - Scripts (
scripts/): Python utilities for installation, configuration, and 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, plugin variants, and 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 (
allowed-tools,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. - 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.
- 4d 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 (7 stars, last pushed 4d ago), licensed MIT. It adds 3,971 tokens to every session, about $0.0199 per session on Opus 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
agent-skills AGENTS.md
AGENTS.md instructions for magnus919/agent-skills, covering agents.md — agent guide for agent-skills, format compliance, readme format, required sections and style guidance.
gangsta AGENTS.md
Instructions for kucherenko/gangsta, covering contributing to gangsta, what this is, what will not be accepted, skill changes and the laws apply to contributors too.
shisan-xinuo-workflow AGENTS.md
AGENTS.md instructions for zxc663/shisan-xinuo-workflow, covering 项目级 agent 规则 · shisan-xinuo-workflow（本仓库）, 工作流在场（本仓库会话）, 维护纪律（本 skill 正文 vs 史料——开发本 skill 时的写作规范）, 项目承载（已就绪） and 本仓库底线（区别于通用纪律）.
gangsta GEMINI.md
Instructions for kucherenko/gangsta, a project described as: AI agentic skills framework for spec-driven development, built on the organizational model of mafia.
agent-skills AGENTS.md
AGENTS.md instructions for racastellanosm/agent-skills, covering agents.md, 1. vision & architectural invariants, 2. repository architecture & layout, 3. harness support & installation paths and 4. scripting & tooling guardrails.
claude-thai-skills AGENTS.md
Instructions for Boom-Vitt/claude-thai-skills, covering agents.md, what this repository is / รีโปนี้คืออะไร, how to run the test suite / วิธีรันเทสต์, how to add a new skill / วิธีเพิ่ม skill ใหม่ and tone for contributions / น้ำเสียงในการ contribute.