mcp-cli: Instructions file for Claude Code

CLAUDE.md

mcp-cli CLAUDE.md is an instructions file for Claude Code from madeye/mcp-cli. It costs 1,978 tokens per session, scanned A, original, MIT.

Repository instructions for working on the madeye/mcp-cli Rust project, including commands, architecture notes, and known constraints.

In plain words
What is it for?
Running formatting, linting, tests, builds, the daemon, and the standard input/output bridge during development.
Why use it?
They give a coding agent the project-specific rules and checks needed to make safe, consistent changes.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions Codex.

This is madeye/mcp-cli's own configuration. It tells Claude Code how to work on mcp-cli itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp-cli configures →

Reuse

Borrowing it

Nothing to install: this file belongs to madeye/mcp-cli. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/madeye/mcp-cli/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/madeye/mcp-cli

Made for: Claude Code.

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Per session 1,978 This file is loaded in full into every session.
When invoked 1,978 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01978 $0.01978
Opus 5.5 $0.00791 $0.00791
Sonnet 5.5 $0.00396 $0.00396
Haiku 4.5 $0.00198 $0.00198

Measured 2mo ago against content hash 0507ab079d76, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-cli 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 2mo 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.

CLAUDE.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 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.

Commands

CI gates (must pass before pushing — see user global rules):

cargo fmt --all -- --check
cargo clippy --workspace --all-targets -- -D warnings
cargo test --workspace --all-targets

Other common commands:

cargo build --release                                   # build both binaries
cargo run -p daemon -- --root /path/to/project          # run daemon (default socket: /tmp/mcp-cli.sock)
cargo run -p mcp-bridge                                 # run stdio bridge
cargo test -p daemon changelog::tests::push_advances_version   # single test by path
cargo test -p daemon -- --nocapture                     # see tracing output from tests
RUST_LOG=debug cargo run -p daemon                      # bump log level (daemon defaults to info, bridge to warn)

Daemon flags worth knowing: --socket, --root, --changelog-capacity (ring size, default 4096), --search-cache-capacity (LRU size, default 64; 0 disables), --parse-cache-capacity (tree-sitter parse LRU, default 256; 0 disables), --no-prewarm (skip startup page-cache walk — useful in tests/benchmarks).

Architecture

Three-crate Cargo workspace implementing a sidecar daemon + thin MCP bridge pattern. The point is to amortize kernel overhead: agents make hundreds of small fs.read / git.status / search.grep calls, and each one hits a long-lived in-process daemon instead of forking cat/git/rg.

MCP client (Claude Code / Codex) ──stdio──> mcp-cli-bridge ──UDS──> mcp-cli-daemon
                                            (crates/mcp-bridge)      (crates/daemon)
                                                                     ↑ owns project state:
                                                                       mmap, libgit2, grep-searcher,
                                                                       notify-rs watcher + ChangeLog

Crates

Read the full file on GitHub · 99 lines

Changes

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.

  1. 2mo ago First seen · 99 lines · 1,978 tokens per session scan A 0507ab079d76

Subscribe to this mod's changes

mcp-cli CLAUDE.md is an instructions file published in the GitHub repository madeye/mcp-cli (117 stars, last pushed 6mo ago), licensed MIT. It adds 1,978 tokens to every session, about $0.0079 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.

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