Borrowing it
Nothing to install: this file belongs to kahflane/whatsapp-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/kahflane/whatsapp-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/kahflane/whatsapp-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/kahflane/whatsapp-mcp/claude-md)<a href="https://agentmods.dev/instructions/kahflane/whatsapp-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/kahflane/whatsapp-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.
<a href="https://agentmods.dev/instructions/kahflane/whatsapp-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/kahflane/whatsapp-mcp/claude-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 | $0.02220 | $0.02220 |
| Opus 5 | $0.01110 | $0.01110 |
| Sonnet 5 | $0.00444 | $0.00444 |
| Haiku 4.5 | $0.00222 | $0.00222 |
Grade A, and why
whatsapp-mcp 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 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.
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 — 68 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.
What this is
A WhatsApp MCP (Model Context Protocol) server. One process — Node or Bun — is simultaneously the MCP stdio server and a live WhatsApp client (via the @innovatorssoft/baileys fork). It exposes ~87 tools (wa_*) for reading, searching, sending, scheduling, templating, auto-replying, and posting status. State persists to SQLite via a cross-runtime adapter (src/store/sqlite.ts): node-sqlite3-wasm (pure WASM, no native build) on Node, bun:sqlite on Bun.
Account-ban risk: Baileys is unofficial automation that violates WhatsApp ToS. Use a burner number.
WA_DAILY_CAP+ jittered send pacing are mitigations, not guarantees.
Commands
bun install # deps
bun run start # run the MCP server (stdio)
bun run dev # run with --watch (auto-restart on file change)
bun run typecheck # tsc --noEmit — type gate (must exit 0)
bun run build # tsup -> dist/index.js — the single bundle the npm package ships
There is no test runner and no lint config. The verification gates are bun run typecheck and bun run build (both must exit 0). Pair it with a runtime smoke test: spawn src/index.ts, speak JSON-RPC over stdin (initialize → notifications/initialized → tools/list / tools/call), and assert stdout is pure JSON-RPC. Use an absolute bun path (e.g. ~/.bun/bin/bun) in spawned scripts; bun may not be on PATH in spawned envs.
Logic that only needs the DB or pure functions can be tested by importing modules directly under bun -e '...' with WA_DB_PATH/WA_MEDIA_DIR pointed at /tmp. Note: zsh globs like rm /tmp/x* fail with "no matches" when absent — list exact filenames.
Running as an MCP server
.mcp.json (project-scoped; committed variant is .mcp.json.example) registers the server with absolute paths to both bun and src/index.ts, and sets all WA_* env vars to absolute project paths. After editing source, the user must restart Claude Code to respawn the server — there is no hot reload through the MCP client.
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 · 68 lines · 2,220 tokens per session scan A 36a95c7c159c
whatsapp-mcp CLAUDE.md is an instructions file published in the GitHub repository kahflane/whatsapp-mcp (6 stars, last pushed 3mo ago), licensed MIT. It adds 2,220 tokens to every session, about $0.0111 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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