Borrowing it
Nothing to install: this file belongs to cl-ai-project/cl-mcp. 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/cl-ai-project/cl-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/cl-ai-project/cl-mcpWrote 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/cl-ai-project/cl-mcp/agents-md)<a href="https://agentmods.dev/instructions/cl-ai-project/cl-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/cl-ai-project/cl-mcp/agents-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/cl-ai-project/cl-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/cl-ai-project/cl-mcp/agents-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 | $0.01115 | $0.01115 |
| Opus 5.5 | $0.00446 | $0.00446 |
| Sonnet 5.5 | $0.00223 | $0.00223 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade B, and why
cl-mcp AGENTS.md scanned grade B with 1 finding 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 26d 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.
Unrestricted tool accessmediumExcessive agency
A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.
Treat the REPL tool as trusted input only; untrusted callers can execute arbitrary code. Prefer `:tcp` during development and secure the port when exposing beyond localhost. When adjusting logging, ensure secrets are red How it starts
The opening of the file, as written. The whole thing — 32 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
@prompts/repl-driven-development.md @prompts/common-lisp-expert.md @prompts/cl-spec-driven-development.md
Project Structure & Module Organization
The core system lives under src/, grouped by responsibility (protocol, transports, tools, the worker pool; see the Architecture table in CLAUDE.md). cl-mcp.asd is a package-inferred-system: each file defines package cl-mcp/src/<path> and is loaded because another loaded file :import-froms it, so the .asd needs no edit. A new tool module is registered in src/tools/all.lisp (and, if it runs in the worker, in register-all-handlers in src/worker/handlers.lisp); public API is re-exported from main.lisp. Tests reside in tests/ with mirrored filenames (*-test.lisp) for Rove. Helper clients and bridges are in scripts/. Keep assets such as sample transcripts or captures under tests/fixtures/ if introduced.
Build, Test, and Development Commands
Use cl-mcp REPL, invoke individual suites with run-tests so tests run inside the agent without shelling out.
Temporary Debug Logging
- When cl-mcp shows unintended behavior or hits errors that are hard to diagnose, record each occurrence to a temp file immediately.
- Use a per-session temp log (for example,
/tmp/cl-mcp-debug-<timestamp>.log) and append entries instead of overwriting. - For every entry, include at least: timestamp, command/tool invocation, relevant inputs, observed error/output, and stack trace or restart information when available.
- Redact secrets before writing logs, and reference the temp log in follow-up debugging notes, issues, or PRs.
Coding Style & Naming Conventions
Follow the Google Common Lisp Style Guide: 2-space indent, ≤100 columns, blank line between top-level forms. Each *.lisp begins with (in-package ...) then module-specific declaim. Use lower-case lisp-case for functions, -p predicates, +constants+, and *specials*. Avoid runtime eval and dynamic symbol interning; prefer restarts over signal. Public functions and classes require docstrings; document conditions and restarts in situ.
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.
- 26d ago Changed · +221 tokens per session 1332e1eb6ae3
- 1mo ago Changed · +14 tokens per session e2d005998a83
- 1mo ago Changed · +157 tokens per session 3600b3f38d7e
- 1mo ago Changed · +3 lines · +104 tokens per session 473f0479558f
- 2mo ago First seen · 29 lines · 619 tokens per session scan B 2f46dcf2c7bb
cl-mcp AGENTS.md is an instructions file published in the GitHub repository cl-ai-project/cl-mcp (90 stars, last pushed 9d ago), licensed MIT. It adds 1,115 tokens to every session, about $0.0045 per session on Opus 5.5. A static security scan graded it B with 1 finding (unrestricted tool access). 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).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.