todocko-mcp: Instructions file for Claude Code

CLAUDE.md

todocko-mcp CLAUDE.md is an instructions file for Claude Code from brnt-cz/todocko-mcp. It costs 382 tokens per session, scanned A, original, MIT.

A set of Claude Code instructions for working with the Todocko MCP server, including rules for protecting a recovery phrase. MCP is a standard connection between an AI agent and external tools or data.

In plain words
What is it for?
Use it when developing or safely testing the Todocko MCP server. It explains how to pass the recovery phrase through an environment variable and avoid unsafe handling.
Why use it?
It prevents the configured private recovery phrase from being exposed in logs, commands, files, or network requests. This protects access to Todocko data.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions Claude Code.

This is brnt-cz/todocko-mcp's own configuration. It tells Claude Code how to work on todocko-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything todocko-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to brnt-cz/todocko-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/brnt-cz/todocko-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/brnt-cz/todocko-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 382 This file is loaded in full into every session.
When invoked 382 The same file — it is already loaded in full.
Security scan A 0 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00382 $0.00382
Opus 5 $0.00191 $0.00191
Sonnet 5 $0.00076 $0.00076
Haiku 4.5 $0.00038 $0.00038

Measured 9d ago against content hash 04f35b52cf77, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

todocko-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.

CLAUDE.md · 53 lines

What it actually says

Claude Code Guidelines for Todocko MCP Server

Security - CRITICAL

Mnemonic Handling

The TODOCKO_MNEMONIC environment variable contains a BIP39 mnemonic phrase that:

  • Is the private key to all user's Todocko data
  • Allows decryption of all tasks, projects, and other data
  • Should be treated with the same care as a password or private key

NEVER:

  • Print or log the mnemonic value
  • Include the mnemonic in command line arguments (visible in ps, shell history)
  • Write the mnemonic to files (except secure config files)
  • Send the mnemonic over network or to external services
  • Include the mnemonic in error messages or debug output

ALWAYS:

  • Use environment variables to pass the mnemonic
  • If testing, use export TODOCKO_MNEMONIC=... && command (single line, not in history if using space prefix)
  • Refer to the mnemonic as "the configured mnemonic" without showing its value

Safe Testing Example

# Set in current session only (not in command args)
export TODOCKO_MNEMONIC="..."
node dist/index.js

# Or read from secure file
export TODOCKO_MNEMONIC=$(cat ~/.todocko-mnemonic)
node dist/index.js

Project Structure

  • src/evolu.ts - Evolu database integration with sync
  • src/tools/ - MCP tool implementations
  • src/index.ts - MCP server entry point

Development

pnpm install
pnpm run build
pnpm run dev  # watch mode

Testing

The MCP server connects to Todocko relay servers and syncs data encrypted with the mnemonic-derived keys. Ensure you have a valid mnemonic configured before testing.

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.

  1. 9d ago First seen · 53 lines · 382 tokens per session scan A 04f35b52cf77

Subscribe to this mod's changes

todocko-mcp CLAUDE.md is an instructions file published in the GitHub repository brnt-cz/todocko-mcp (0 stars, last pushed yesterday), licensed MIT. It adds 382 tokens to every session, about $0.0019 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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