What is anki-mcp-server CLAUDE.md?

A project instruction file for an Anki integration server. Anki is a flashcard application, and the server lets AI assistants work with it through AnkiConnect, Anki’s connection interface.

Building and running the server, starting its development modes, and running unit, workflow, end-to-end, and coverage tests.

It gives coding agents a shared reference for the project’s structure, commands, user documentation, and tests.

How ankimcp/anki-mcp-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to ankimcp/anki-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/ankimcp/anki-mcp-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/ankimcp/anki-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/ankimcp/anki-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/ankimcp/anki-mcp-server/claude-md)

Your own site

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

Per session 6,150 This file is loaded in full into every session.

When invoked 6,150 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	$0.06150	$0.06150
Opus 5.5	$0.02460	$0.02460
Sonnet 5.5	$0.01230	$0.01230
Haiku 4.5	$0.00615	$0.00615

Measured 1mo ago against content hash c16bfe52e098, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

anki-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 1mo 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 · 319 lines

How it starts

The opening of the file, as written. The whole thing — 319 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 server enabling AI assistants to interact with Anki via AnkiConnect. Built with NestJS and @rekog/mcp-nest.

Package: @ankimcp/anki-mcp-server (npm)
License: MIT
Status: Beta (0.x.x) - breaking changes allowed
User-facing docs: README.md covers installation, client setup (Claude Desktop/MCPB, HTTP, tunnel), and the full tool catalog — consult it for anything user-facing rather than reconstructing it here.

Quick Reference

# Build & Run
npm run build                    # Build → dist/ (all three entry points)
npm run start:dev:stdio          # STDIO mode with watch
npm run start:dev:http           # HTTP mode with watch

npm run start:dev:tunnel         # Tunnel mode with watch + debug

# Testing
npm test                         # All tests
npm test -- path/to/file.spec.ts # Single test file
npm run test:tools               # Tool unit tests only
npm run test:workflows           # Multi-tool workflow scenarios (mocked)
npm run test:cov                 # With coverage (70% threshold)
npm run e2e:full:local           # One-shot E2E: up → test → down
npm run smoke:pack               # Pack + install from tarball (no lockfile), verify initialize/tools-list

# Quality
npm run lint && npm run type-check   # Pre-push checks (also runs via Husky)

# Debugging
npm run inspector:stdio          # MCP Inspector UI for testing tools
npm run inspector:stdio:debug    # With debugger on port 9229
npm run inspector:http           # Inspector against HTTP transport

Architecture

Entry Points

Three entry points compiled in a single build:

Mode	Entry	Use Case	Logging
STDIO	`dist/main-stdio.js`	Claude Desktop, MCP clients	stderr
HTTP	`dist/main-http.js`	Web-based AI (ChatGPT, claude.ai)	stdout
Tunnel	`dist/main-tunnel.js`	Remote access via WebSocket tunnel	stderr

Read the full file on GitHub · 319 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.

1mo ago Changed · +2 lines · +677 tokens per session c16bfe52e098
1mo ago Changed · +3 lines · +204 tokens per session 823ed8962fe0
2mo ago Changed · +230 tokens per session 2f453d83cfc0
2mo ago First seen · 314 lines · 5,039 tokens per session scan A 78769ebb6e1e

Subscribe to this mod's changes

anki-mcp-server CLAUDE.md is an instructions file published in the GitHub repository ankimcp/anki-mcp-server (546 stars, last pushed 15d ago), licensed MIT. It adds 6,150 tokens to every session, about $0.0246 per session on Opus 5.5. 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 2026-08-30.

Learning and teaching ai ai-learning-tool ai-tutor anki anki-addon anki-flashcards

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anki-mcp-server: Instructions file for Claude Code