What is stata-mcp CLAUDE.md?

Project instructions for stata-mcp, including how its server runs, how to restart it safely, and how to build its VSIX extension package. VSIX is the installable file format used by Visual Studio Code extensions.

Use them after modifying the Python server, when checking its health, or when compiling and packaging the extension.

They prevent unsafe server restarts and help ensure changed Python files are included and tested correctly.

How hanlulong/stata-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to hanlulong/stata-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.

Copy the file

curl -O https://raw.githubusercontent.com/hanlulong/stata-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/hanlulong/stata-mcp

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/hanlulong/stata-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/hanlulong/stata-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/hanlulong/stata-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/hanlulong/stata-mcp/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/hanlulong/stata-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/hanlulong/stata-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 475 This file is loaded in full into every session.

When invoked 475 The same file — it is already loaded in full.

Security scan B 2 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.

Model	Per session	Once invoked
Fable 5.1	$0.00475	$0.00475
Opus 5	$0.00237	$0.00237
Sonnet 5	$0.00095	$0.00095
Haiku 4.5	$0.00047	$0.00047

Measured 9d ago against content hash 88b2d3a4d235, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

stata-mcp CLAUDE.md scanned grade B with 2 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 9d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

- MCP tools: `curl -s -X POST http://localhost:4000/v1/tools -H "Content-Type: application/json" -d '{"tool": "stata_run_selection", "parameters": {"selection": "display 1+1"}}'`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

2. Test the server: `curl -s http://localhost:4000/health`

CLAUDE.md · 52 lines

What it actually says

Project Rules for stata-mcp

Server Restart Protocol

CRITICAL: Never use pkill -f stata_mcp_server.py directly!

The MCP server runs on port 4000. Killing the server process incorrectly can terminate the current Claude Code session since Claude Code also connects to port 4000.

To restart the MCP server:

Always use the restart script:

./scripts/restart_server.sh

This script:

Auto-detects VS Code, Cursor, or Antigravity extension directory
Copies updated source files to the installed extension
Sends graceful SIGTERM (not SIGKILL) to stop the server
Starts the server with correct settings
Verifies the server is running

After modifying Python source files:

Run the restart script: ./scripts/restart_server.sh
Test the server: curl -s http://localhost:4000/health
Recompile VSIX if needed: npm run compile && vsce package

Package Building

When building the VSIX package:

Ensure all new Python modules are listed in .vscodeignore whitelist:
- !src/stata_mcp_server.py
- !src/session_manager.py
- !src/stata_worker.py
- !src/api_models.py
- !src/output_filter.py
- !src/utils.py
Run npm run compile to build TypeScript
Run vsce package to create the VSIX
Verify contents with unzip -l stata-mcp-*.vsix | grep src/

Testing

Unit tests: python3 -m pytest tests/test_compact_filter.py -v
Server health: curl -s http://localhost:4000/health
MCP tools: curl -s -X POST http://localhost:4000/v1/tools -H "Content-Type: application/json" -d '{"tool": "stata_run_selection", "parameters": {"selection": "display 1+1"}}'

IDE Compatibility

The extension works with VS Code, Cursor, and Antigravity IDE. The restart script auto-detects which one is installed.

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.

9d ago First seen · 52 lines · 475 tokens per session scan B 88b2d3a4d235

Subscribe to this mod's changes

stata-mcp CLAUDE.md is an instructions file published in the GitHub repository hanlulong/stata-mcp (495 stars, last pushed 2mo ago), licensed MIT. It adds 475 tokens to every session, about $0.0024 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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stata-mcp: Instructions file for Claude Code