update-codemaps

update-codemaps is a command for coding agents from sangrokjung/claude-forge. It costs 13 tokens per session (186 once invoked), scanned A, original, MIT.

A command that maps the structure of a codebase into short architecture documents. It examines files, imports, exports, dependencies, backend and frontend areas, and data models.

In plain words
What is it for?
For generating or updating architecture, backend, frontend, and data documentation in `codemaps/`, with freshness timestamps and a change report.
Why use it?
It gives developers a current overview of how the project is organised without requiring them to read every implementation file. It also reports how much the map changed and asks for approval when the change is large.

Command

Part of the claude-forge plugin — 33 skills, 39 commands, 17 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/sangrokjung/claude-forge/update-codemaps
Clone the repo
git clone --depth 1 https://github.com/sangrokjung/claude-forge

Or install claude-forge, the plugin that ships this one along with the rest of its 33 skills, 39 commands, 17 agents.

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.

agentmods badge for update-codemaps

README.md
[![agentmods](https://agentmods.dev/badge/commands/sangrokjung/claude-forge/update-codemaps.svg)](https://agentmods.dev/commands/sangrokjung/claude-forge/update-codemaps)
Your own site
<a href="https://agentmods.dev/commands/sangrokjung/claude-forge/update-codemaps"><img src="https://agentmods.dev/badge/commands/sangrokjung/claude-forge/update-codemaps.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 186 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00013 $0.00186
Opus 5 $0.00006 $0.00093
Sonnet 5 $0.00003 $0.00037
Haiku 4.5 $0.00001 $0.00019

Measured 5d ago against content hash 58d6617c55ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

update-codemaps 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 5d 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.

Origin

Copies of this mod

3 near-identical copies found in the catalogue:

commands/update-codemaps.md · 23 lines

What it actually says

Update Codemaps

Analyze the codebase structure and update architecture documentation:

  1. Scan all source files for imports, exports, and dependencies

  2. Generate token-lean codemaps in the following format:

    • codemaps/architecture.md - Overall architecture
    • codemaps/backend.md - Backend structure
    • codemaps/frontend.md - Frontend structure
    • codemaps/data.md - Data models and schemas
  3. Calculate diff percentage from previous version

  4. If changes > 30%, request user approval before updating

  5. Add freshness timestamp to each codemap

  6. Save reports to .reports/codemap-diff.txt

Use TypeScript/Node.js for analysis. Focus on high-level structure, not implementation details.

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. 5d ago First seen · 23 lines · 13 tokens per session scan A 58d6617c55ec

Subscribe to this mod's changes

update-codemaps is a command published in the GitHub repository sangrokjung/claude-forge (822 stars, last pushed yesterday), licensed MIT. It adds 13 tokens to every session and 186 once invoked, about $0.0001 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.