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/noahlz/claude-plugins/claude-mdgit clone --depth 1 https://github.com/noahlz/claude-pluginsWrote 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/noahlz/claude-plugins/claude-md)<a href="https://agentmods.dev/instructions/noahlz/claude-plugins/claude-md"><img src="https://agentmods.dev/badge/instructions/noahlz/claude-plugins/claude-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 | $0.00316 | $0.00316 |
| Opus 5 | $0.00158 | $0.00158 |
| Sonnet 5 | $0.00063 | $0.00063 |
| Haiku 4.5 | $0.00032 | $0.00032 |
Grade A, and why
claude-plugins CLAUDE.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.
What it actually says
Claude Code Plugins
A collection of Claude Code plugins for developer workflow, productivity, and writing — with standard directory conventions and an extensive test suite.
Development Rules for Skills, Agents and Hooks
- After creating or updating any agent, skill or reference file: use the
dev-workflow:tighten-for-llmsskill to make it concise, imperative, and LLM-friendly. - Write scripts, not ad-hoc Bash commands. Keep shared scripts in
plugins/dev-workflow/lib/. - Minimize external dependencies. Use pure Node.js/JavaScript. Do NOT add npm packages without user approval.
- Do NOT preserve backwards compatibility when enhancing or refactoring.
- Write tests for all changes and then use the
dev-workflow:run-testsskill to verify your work. See test/CLAUDE.md.
ccusage
Be aware: the dev-workflow commit skills (commit-with-costs, view-cost-metrics) use ccusage to extract Claude Code session cost data for commit trailers.
Versioning
release-it handles version bumps. Do NOT edit version numbers in marketplace.json.
Examples
examples/<plugin>/<skill>/ contains sample inputs for manual skill testing. When updating a skill, check for fixtures and test with the appropriate invocation (e.g. /de-llm <file>).
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 · 25 lines · 316 tokens per session scan A 07344907ed2c
claude-plugins CLAUDE.md is an instructions file published in the GitHub repository noahlz/claude-plugins (5 stars, last pushed 2d ago), licensed MIT. It adds 316 tokens to every session, about $0.0016 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
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
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.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-release stance: foundation over blast radius, repository layout, commands and host sandbox failures.