Borrowing it
Nothing to install: this file belongs to mumez/smalltalk-validator-mcp-server. 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/mumez/smalltalk-validator-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/mumez/smalltalk-validator-mcp-serverWrote 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/mumez/smalltalk-validator-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/mumez/smalltalk-validator-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/mumez/smalltalk-validator-mcp-server/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 5.1 | $0.00633 | $0.00633 |
| Opus 5 | $0.00316 | $0.00316 |
| Sonnet 5 | $0.00127 | $0.00127 |
| Haiku 4.5 | $0.00063 | $0.00063 |
Grade A, and why
smalltalk-validator-mcp-server 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 6d 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 — 62 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 Overview
This is an MCP (Model Context Protocol) server project for validating Tonel formatted Smalltalk source code using tree-sitter-tonel-smalltalk. The purpose is to validate AI-generated tonel files and Smalltalk method definitions before loading them into a real Smalltalk environment.
Architecture
The project implements five main tools:
Validation Tools
validate_tonel_smalltalk_from_file(file_path, options)- Validate Tonel formatted Smalltalk source code from a filevalidate_tonel_smalltalk(file_content, options)- Validate Tonel formatted Smalltalk source code from content stringvalidate_smalltalk_method_body(method_body_content)- Validate a Smalltalk method body for syntax correctness
Linting Tools
lint_tonel_smalltalk_from_file(file_path)- Lint Tonel formatted Smalltalk source code from a filelint_tonel_smalltalk(file_content)- Lint Tonel formatted Smalltalk source code from content string
Validation Options
without-method-body: true- Only validates tonel structure (for testing)
Common Commands
uv sync- Install dependencies and sync virtual environmentuv run pytest- Run all testsuv run pytest tests/test_server.py- Run server tests onlyuv run pytest -v- Run tests with verbose outputuv run ruff check- Lint code with ruffuv run ruff format- Format code with ruffuv run ruff check --fix- Auto-fix linting issuesuv run mdformat --check .- Check markdown formattinguv run mdformat .- Format markdown filesuv run pre-commit install- Install pre-commit hooks (run once after clone)uv run pre-commit run --all-files- Run all pre-commit hooks manuallyuv run python -m smalltalk_validator_mcp_server- Run the MCP server
Pre-commit Hooks
Pre-commit hooks automatically run before each commit to ensure code quality:
- Basic file checks (trailing whitespace, file endings, YAML syntax)
- Ruff linting and formatting for Python code
- Mdformat for markdown files
- Pytest to ensure tests pass
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.
- 6d ago First seen · 62 lines · 633 tokens per session scan A 838594ad07c7
smalltalk-validator-mcp-server CLAUDE.md is an instructions file published in the GitHub repository mumez/smalltalk-validator-mcp-server (2 stars, last pushed 19d ago), licensed MIT. It adds 633 tokens to every session, about $0.0032 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
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).
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.
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 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).
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.