Borrowing it
Nothing to install: this file belongs to zhousiyao03-cyber/repolayer. 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/zhousiyao03-cyber/repolayer/master/CLAUDE.mdgit clone --depth 1 https://github.com/zhousiyao03-cyber/repolayerWrote 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/zhousiyao03-cyber/repolayer/claude-md)<a href="https://agentmods.dev/instructions/zhousiyao03-cyber/repolayer/claude-md"><img src="https://agentmods.dev/badge/instructions/zhousiyao03-cyber/repolayer/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/zhousiyao03-cyber/repolayer/claude-md"><img src="https://agentmods.dev/badge/instructions/zhousiyao03-cyber/repolayer/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 | $0.02826 | $0.02826 |
| Opus 5 | $0.01413 | $0.01413 |
| Sonnet 5 | $0.00565 | $0.00565 |
| Haiku 4.5 | $0.00283 | $0.00283 |
Grade A, and why
repolayer 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 10d 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 — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project
repolayer is a Rust CLI + MCP server that pre-computes 4 SQLite-backed indices (graph, per-file outline, file-level deps, hybrid search) across one or more repos and serves them to AI agents via MCP. Single static binary, ast-grep-core parsing for source languages, bare tree-sitter for IDL (protobuf/thrift). No runtime deps for end users.
Status: v0.3.0. Repositioned as the cross-repo + IDL extension of aeroxy/ast-outline — see NOTICE for adopted components.
Common commands
# Build / test
cargo build # debug build
cargo build --release # release (LTO, stripped, ~47 MB)
cargo test # run all 290+ integration tests
cargo test --test cli_build # run a single integration test file
cargo test adapter_ # all adapter tests by name prefix
cargo test -- --nocapture # show test stdout/stderr
cargo clippy --all-targets -- -D warnings # lint (must be clean)
cargo fmt # format
# End-to-end usage
cargo run -- init # creates repolayer.yml in CWD
cargo run -- build # full index → 4 SQLite files in .repolayer/
cargo run -- update # incremental re-index via `git diff`
cargo run -- serve # start MCP stdio server (logs to stderr)
cargo run -- install --mcp claude-code # write claude_desktop_config.json
cargo run -- prompt # output agent-steering snippet
serve uses stdio for MCP — stdout is reserved for the protocol, all tracing output goes to stderr (configured in src/main.rs). Don't add println! to anything reachable from the serve path.
Architecture
Pipeline (build): config → walk repos in parallel via rayon → ast-grep parse (or bare tree-sitter for IDL) → mpsc-channel-style serial write to 4 SQLite stores → cross-repo gluing → search index → optional LLM summary.
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.
- 10d ago First seen · 110 lines · 2,826 tokens per session scan A c6f4bef5c535
repolayer CLAUDE.md is an instructions file published in the GitHub repository zhousiyao03-cyber/repolayer (5 stars, last pushed 3mo ago), licensed MIT. It adds 2,826 tokens to every session, about $0.0141 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
repobrain copilot-instructions.md
Copilot instructions for study8677/repobrain, covering github copilot bootstrap instructions and hard rule — query the repobrain hub first.
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.
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 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.
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).