# Architecture Updater > Keep high-level architecture specs/diagrams aligned with the evolving codebase. Use when this capability is needed. - Skill: `tomevault-io/architecture-updater` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/architecture-updater` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/architecture-updater/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/architecture-updater --- 1) Read `spec/architecture.md` (if present), `spec/index.md`, and recent ADRs under `spec/decisions/`. 2) Update/create `spec/architecture.md` with: - Components (bulleted) - Data flow (steps) - External dependencies - Key interfaces/contracts (links) - “What changed recently” (short changelog) 3) If useful, add/update a diagram under `spec/diagrams/` (e.g., Mermaid). 4) Ensure `spec/index.md` links to architecture and the latest ADRs. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/rafaie) — claim your Tome and manage your conversions.