Borrowing it
Nothing to install: this file belongs to lawwu/mcp-lightcast. 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/lawwu/mcp-lightcast/main/CLAUDE.mdgit clone --depth 1 https://github.com/lawwu/mcp-lightcastWrote 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/lawwu/mcp-lightcast/claude-md)<a href="https://agentmods.dev/instructions/lawwu/mcp-lightcast/claude-md"><img src="https://agentmods.dev/badge/instructions/lawwu/mcp-lightcast/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 | $0.01635 | $0.01635 |
| Opus 5 | $0.00817 | $0.00817 |
| Sonnet 5 | $0.00327 | $0.00327 |
| Haiku 4.5 | $0.00163 | $0.00163 |
Grade A, and why
mcp-lightcast 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 8d 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 — 178 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
MCP Lightcast is a Model Context Protocol (MCP) server that provides FastMCP-based integration with Lightcast APIs for job titles, skills analysis, and career data. The project is built using Python 3.12+ and follows modern Python development practices.
Current Status: v0.2.0 - Production ready with 11/18 API endpoints working (61% coverage)
Essential Commands
Development Setup
make setup # Initial project setup (installs deps, creates .env)
make install-dev # Install all dependencies including dev
uv sync --all-groups # Sync all dependencies from lockfile
Running the Server
make run # Run MCP server (streamable-http, port 3000)
make run-stdio # Run with stdio transport (for Claude Desktop)
make dev-server # Run with debug logging
make validate-config # Validate configuration and test auth
Code Quality & Testing
make check # Run all checks (lint + type-check + test)
make lint # Run ruff linting
make type-check # Run mypy type checking
make format # Format with black and ruff
make test # Run pytest tests
make test-coverage # Run tests with coverage report
make test-apis-manual # Test with real API calls (requires credentials)
Environment Configuration
make test-env-check # Check if API credentials are configured
make claude-config # Show Claude Desktop integration config
Architecture Overview
Core Components
Entry Points:
src/mcp_lightcast/__init__.py- Main CLI entry point with Click frameworksrc/mcp_lightcast/__main__.py- Module execution entry pointsrc/mcp_lightcast/server.py- FastMCP server instance and tool registration
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.
- 8d ago First seen · 178 lines · 1,635 tokens per session scan A feaba31d45fb
mcp-lightcast CLAUDE.md is an instructions file published in the GitHub repository lawwu/mcp-lightcast (5 stars, last pushed 1y ago), licensed MIT. It adds 1,635 tokens to every session, about $0.0082 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.
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