What is copilot-money-mcp CLAUDE.md?

Project instructions for a server that lets AI read and manage Copilot Money personal-finance data. MCP is a standard way for AI tools to connect to external data and actions.

Use it when developing, testing, building, or checking this Copilot Money MCP server.

It explains the server’s architecture, commands, testing, and the difference between read-only access and enabled write operations.

How ignaciohermosillacornejo/copilot-money-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to ignaciohermosillacornejo/copilot-money-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/ignaciohermosillacornejo/copilot-money-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/ignaciohermosillacornejo/copilot-money-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/ignaciohermosillacornejo/copilot-money-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/ignaciohermosillacornejo/copilot-money-mcp/claude-md)

Your own site

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

Per session 3,210 This file is loaded in full into every session.

When invoked 3,210 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	$0.03210	$0.03210
Opus 5	$0.01605	$0.01605
Sonnet 5	$0.00642	$0.00642
Haiku 4.5	$0.00321	$0.00321

Measured 12d ago against content hash efc7037b57a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

copilot-money-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 12d 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 · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copilot Money MCP Server

MCP (Model Context Protocol) server that enables AI-powered queries and management of Copilot Money personal finance data. Reads come from the locally cached Firestore database (LevelDB + Protocol Buffers); writes go through Copilot's GraphQL API at app.copilot.money/api/graphql. 33 base tools (14 read + 19 write); --live-reads swaps 6 cache reads for 17 live tools (25 read tools in live mode). Counting convention: "base" = cache-mode read tools (createToolSchemas()) + write tools (createWriteToolSchemas()); live-mode _live variants are counted separately. Read-only by default, write tools opt-in via --write flag.

Quick Reference

bun install          # Install dependencies
bun test             # Run tests
bun run build        # Build for production
bun run pack:mcpb    # Create .mcpb bundle for Claude Desktop
bun run check        # typecheck + lint + format:check + check:version-sync + check:server-json + check:deps-pinned + bun test --bail
bun run fix          # Run lint:fix + format

bun run check does NOT run check:skills (the skills/ linter). Run bun run check:skills separately when touching anything under skills/. It shells out to scripts/dump-tool-names.ts under bun to get the real tool list, so it needs bun on PATH and a completed bun install.

Architecture

Defending against Copilot API drift: the conformance ledger, live smokes, PR rituals, and weekly drift check are explained as one system in docs/CONFORMANCE_ARCHITECTURE.md. Read it before touching the GraphQL surface, adding a tool, or fixing a boundary bug.

Data Flow

Copilot Money stores data in local LevelDB/Firestore cache
src/core/decoder.ts reads .ldb files and parses Protocol Buffers
src/core/database.ts provides cached, filtered access to all collections
src/tools/tools.ts exposes MCP tools via Model Context Protocol
src/server.ts handles MCP protocol communication

Read the full file on GitHub · 138 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.

12d ago First seen · 138 lines · 3,210 tokens per session scan A efc7037b57a5

Subscribe to this mod's changes

copilot-money-mcp CLAUDE.md is an instructions file published in the GitHub repository ignaciohermosillacornejo/copilot-money-mcp (79 stars, last pushed 4d ago), licensed MIT. It adds 3,210 tokens to every session, about $0.0161 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 2026-08-30.

Building agents Finance and fintech TypeScript bun copilot-money leveldb mcp personal-finance

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

copilot-money-mcp: Instructions file for Claude Code