What is todoist-mcp-server CLAUDE.md?

A CLAUDE.md project guide for a Python server that connects Claude to Todoist, a task-management service. It documents the project structure, tools, APIs, testing, formatting, and development commands.

Use it when developing, testing, formatting, or reviewing this Todoist integration.

It gives Claude Code the repository context needed to work consistently with the project's setup and conventions.

How stevesimpson418/todoist-mcp-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to stevesimpson418/todoist-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.

Copy the file

curl -O https://raw.githubusercontent.com/stevesimpson418/todoist-mcp-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/stevesimpson418/todoist-mcp-server

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/stevesimpson418/todoist-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/stevesimpson418/todoist-mcp-server/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/stevesimpson418/todoist-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/stevesimpson418/todoist-mcp-server/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/stevesimpson418/todoist-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/stevesimpson418/todoist-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 889 This file is loaded in full into every session.

When invoked 889 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.

Model	Per session	Once invoked
Fable 5.1	$0.00889	$0.00889
Opus 5	$0.00445	$0.00445
Sonnet 5	$0.00178	$0.00178
Haiku 4.5	$0.00089	$0.00089

Measured 9d ago against content hash 5e0bc6596c2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

todoist-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 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 · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — Project Intelligence

Project Overview

Todoist MCP server built with FastMCP. Wraps both the Todoist REST v2 and Sync API v1 for comprehensive task management through Claude. Runs locally via stdio transport — API token stays on the user's machine.

Tech Stack

Language: Python 3.12+
Package manager: uv (never use pip directly)
MCP framework: FastMCP 2.0+
Todoist APIs: todoist-api-python (REST v2), httpx (Sync API v1 batch ops)
Linting/formatting: Ruff (config in ruff.toml)
Testing: pytest + pytest-cov + pytest-asyncio
Git hooks: Lefthook (ruff, markdownlint, shellcheck, shfmt, commitlint)
CI: GitHub Actions (lint + test matrix)

Project Structure

src/todoist_mcp_server/       # Source code (src layout)
  server.py                   # Entry point — FastMCP init + tool registration
  tools.py                    # MCP tool definitions (register_todoist_tools)
  client.py                   # Todoist API client (REST v2 + Sync v1 batch)
  exceptions.py               # Custom exception classes
tests/                        # Pytest test suite
  conftest.py                 # Shared fixtures
  test_tools.py               # Tool registration and delegation tests
  test_client.py              # REST v2 client tests
  test_batch.py               # Sync API batch operation tests

Key Commands

uv sync --dev                                                    # Install all deps
uv run pytest -v                                                 # Run tests
uv run pytest --cov=todoist_mcp_server --cov-report=term-missing # Coverage
uv run ruff check src/ tests/                                    # Lint
uv run ruff format src/ tests/                                   # Format
lefthook install                                                 # Install git hooks

Conventions

Commits: Conventional Commits format — type(scope): description
Line length: 100 characters
Quotes: Double quotes (enforced by ruff)
Imports: Sorted by isort via ruff, first-party package declared in ruff.toml
Tests: Mirror source structure, use fixtures in conftest.py
Entry point: server.py:main() — registered as console script in pyproject.toml

Read the full file on GitHub · 82 lines

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 · 82 lines · 889 tokens per session scan A 5e0bc6596c2b

Subscribe to this mod's changes

todoist-mcp-server CLAUDE.md is an instructions file published in the GitHub repository stevesimpson418/todoist-mcp-server (1 stars, last pushed 1mo ago), licensed MIT. It adds 889 tokens to every session, about $0.0044 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.

Project management claude fastmcp mcp mcp-server model-context-protocol

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todoist-mcp-server: Instructions file for Claude Code