actual-budget-mcp-es: Instructions file for Claude Code

CLAUDE.md

actual-budget-mcp-es CLAUDE.md is an instructions file for Claude Code from marcoaperez/actual-budget-mcp-es. It costs 2,154 tokens per session, scanned A, original, MIT.

Project instructions for Actual-MCP, an MCP server that connects AI tools to Actual Budget, a self-hosted app for household budgeting and finances. The described version reads budget data and analyzes spending and net worth.

In plain words
What is it for?
Use them when working on features that inspect expenses, budgets, transactions, or net worth in Actual Budget.
Why use it?
They provide project-specific guidance for connecting to the budget, synchronizing data, and avoiding stale results.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is marcoaperez/actual-budget-mcp-es's own configuration. It tells Claude Code how to work on actual-budget-mcp-es 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 actual-budget-mcp-es configures →

Reuse

Borrowing it

Nothing to install: this file belongs to marcoaperez/actual-budget-mcp-es. 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/marcoaperez/actual-budget-mcp-es/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/marcoaperez/actual-budget-mcp-es

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 2,154 This file is loaded in full into every session.
When invoked 2,154 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 $0.02154 $0.02154
Opus 5 $0.01077 $0.01077
Sonnet 5 $0.00431 $0.00431
Haiku 4.5 $0.00215 $0.00215

Measured 11d ago against content hash 53757b5253fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

actual-budget-mcp-es 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 11d 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 · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Contexto del proyecto: Actual-MCP

Descripción

Servidor MCP que conecta Claude con Actual Budget (finanzas familiares del usuario). Permite analizar gastos, seguir el presupuesto, ver el patrimonio y —en la v2 en diseño— escribir: categorizar movimientos, separar transacciones (splits reales), registrar repetitivos y preparar el presupuesto mensual.

Tipo de proyecto

Tipo D (Servidor MCP) — ver skill Claude-Code-Proyectos-Personales en Obsidian-Personal.

Stack

  • v1 actual: JavaScript ES Modules, @actual-app/api 26.3, MCP SDK 1.27, stdio.
  • v2 (en diseño): TypeScript 6.x + Zod 4.x único + MCP SDK 1.29.x + @actual-app/api 26.7+. Arquitectura src/core/ + src/tools/, transporte agnóstico (stdio por defecto, HTTP opcional).

Fuente de datos

  • Actual Budget self-hosted, vía @actual-app/api (descarga copia local del presupuesto y sincroniza).
  • Regla v2: api.sync() antes de consultar — la v1 solo descargaba al arrancar y servía datos obsoletos.

Variables de entorno relevantes

  • ACTUAL_SERVER_URL — URL del servidor Actual
  • ACTUAL_SERVER_PASSWORD — contraseña del servidor
  • ACTUAL_SYNC_ID — Sync ID del presupuesto (Settings → Advanced → Sync ID)

Convenciones específicas de este proyecto

  • stdout es sagrado: el canal MCP va por stdout; todo log a stderr (ver redirección en src/index.js).
  • Importes: Actual trabaja en céntimos; las tools devuelven SIEMPRE unidades ya convertidas (÷100). Nunca delegar la conversión al LLM.
  • Semántica financiera: excluir transferencias (transfer_id) de los resúmenes de gasto; el patrimonio incluye cuentas off-budget (pensiones, fondos, hipoteca).
  • Vocación de publicación: si se publica en GitHub → README bilingüe (EN + README.es.md), idioma/moneda configurables, instalable con npx, sin credenciales en el historial.
  • Nombres de tools con guion_bajo (exigencia Anthropic: ^[a-zA-Z0-9_-]{1,64}$).

Metodología de desarrollo — Superpowers

Proceso completo (brainstorm → plan → verificación → review) si la tarea toca ≥2 tools nuevas, cambia el esquema de datos, añade una integración externa nueva o crea una feature nueva. TDD obligatorio (Tipo D). Specs en docs/superpowers/specs/ de este repo; digest humano y decisiones en el vault personal (Proyectos/Actual-MCP/). Detalle: nota Integracion-Superpowers-Personal en Obsidian-Personal.

Read the full file on GitHub · 104 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.

  1. 11d ago First seen · 104 lines · 2,154 tokens per session scan A 53757b5253fc

Subscribe to this mod's changes

actual-budget-mcp-es CLAUDE.md is an instructions file published in the GitHub repository marcoaperez/actual-budget-mcp-es (3 stars, last pushed 1mo ago), licensed MIT. It adds 2,154 tokens to every session, about $0.0108 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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