Borrowing it
Nothing to install: this file belongs to gvkhosla/compound-engineering-pi. 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/gvkhosla/compound-engineering-pi/main/CLAUDE.mdgit clone --depth 1 https://github.com/gvkhosla/compound-engineering-piWrote 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/gvkhosla/compound-engineering-pi/claude-md)<a href="https://agentmods.dev/instructions/gvkhosla/compound-engineering-pi/claude-md"><img src="https://agentmods.dev/badge/instructions/gvkhosla/compound-engineering-pi/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/gvkhosla/compound-engineering-pi/claude-md"><img src="https://agentmods.dev/badge/instructions/gvkhosla/compound-engineering-pi/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 | $0.02735 | $0.02735 |
| Opus 5.5 | $0.01094 | $0.01094 |
| Sonnet 5.5 | $0.00547 | $0.00547 |
| Haiku 4.5 | $0.00274 | $0.00274 |
Grade A, and why
compound-engineering-pi 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 1mo 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- compound-engineering-plugin CLAUDE.md — 92% identical, 20 lines differ
How it starts
The opening of the file, as written. The whole thing — 381 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Every Marketplace - Claude Code Plugin Marketplace
This repository is a Claude Code plugin marketplace that distributes the compound-engineering plugin to developers building with AI-powered tools.
Repository Structure
every-marketplace/
├── .claude-plugin/
│ └── marketplace.json # Marketplace catalog (lists available plugins)
├── docs/ # Documentation site (GitHub Pages)
│ ├── index.html # Landing page
│ ├── css/ # Stylesheets
│ ├── js/ # JavaScript
│ └── pages/ # Reference pages
└── plugins/
└── compound-engineering/ # The actual plugin
├── .claude-plugin/
│ └── plugin.json # Plugin metadata
├── agents/ # 24 specialized AI agents
├── commands/ # 13 slash commands
├── skills/ # 11 skills
├── mcp-servers/ # 2 MCP servers (playwright, context7)
├── README.md # Plugin documentation
└── CHANGELOG.md # Version history
Philosophy: Compounding Engineering
Each unit of engineering work should make subsequent units of work easier—not harder.
When working on this repository, follow the compounding engineering process:
- Plan → Understand the change needed and its impact
- Delegate → Use AI tools to help with implementation
- Assess → Verify changes work as expected
- Codify → Update this CLAUDE.md with learnings
Working with This Repository
Adding a New Plugin
- Create plugin directory:
plugins/new-plugin-name/ - Add plugin structure:
plugins/new-plugin-name/ ├── .claude-plugin/plugin.json ├── agents/ ├── commands/ └── README.md - Update
.claude-plugin/marketplace.jsonto include the new plugin - Test locally before committing
Updating the Compounding Engineering Plugin
When agents, commands, or skills are added/removed, follow this checklist:
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.
- 1mo ago First seen · 381 lines · 2,735 tokens per session scan A a203d3be8c2c
compound-engineering-pi CLAUDE.md is an instructions file published in the GitHub repository gvkhosla/compound-engineering-pi (51 stars, last pushed 24d ago), licensed MIT. It adds 2,735 tokens to every session, about $0.0109 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 2026-08-30.
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.