doc-updater

doc-updater is an agent for Claude Code from MRCalderon3D/everything-game-dev-code. It costs 22 tokens per session (244 once invoked), scanned A, original, MIT.

A documentation specialist that keeps Game Design Documents, Technical Design Documents, runbooks, and operational notes aligned with the current project. A runbook is a practical guide for carrying out recurring operational tasks.

In plain words
What is it for?
Use it to update project documents, record decisions, correct ownership and source-of-truth issues, and prepare handoff or archival notes.
Why use it?
It prevents stale or conflicting documentation from causing mistakes and makes the current source of truth clear.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the everything-game-dev-code plugin — 74 skills, 67 commands, 42 agents, 3 hooks, 6 MCP servers shipped together

Good fit Use it to update project documents, record decisions, correct ownership and source-of-truth issues, and prepare handoff or archival notes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/mrcalderon3d/everything-game-dev-code/doc-updater
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.

Clone the repo
git clone --depth 1 https://github.com/MRCalderon3D/everything-game-dev-code

Made for: Claude Code.

Or install everything-game-dev-code, the plugin that ships this one along with the rest of its 74 skills, 67 commands, 42 agents, 3 hooks, 6 MCP servers.

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 doc-updater

README.md
[![agentmods](https://agentmods.dev/badge/agents/mrcalderon3d/everything-game-dev-code/doc-updater/github.svg)](https://agentmods.dev/agents/mrcalderon3d/everything-game-dev-code/doc-updater)
Your own site
<a href="https://agentmods.dev/agents/mrcalderon3d/everything-game-dev-code/doc-updater"><img src="https://agentmods.dev/badge/agents/mrcalderon3d/everything-game-dev-code/doc-updater/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.

agentmods 80×15 button for doc-updater

Your own site · 80×15
<a href="https://agentmods.dev/agents/mrcalderon3d/everything-game-dev-code/doc-updater"><img src="https://agentmods.dev/badge/agents/mrcalderon3d/everything-game-dev-code/doc-updater.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 244 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00022 $0.00244
Opus 5.5 $0.00009 $0.00098
Sonnet 5.5 $0.00004 $0.00049
Haiku 4.5 $0.00002 $0.00024

Measured 1mo ago against content hash 1c25c2544844, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

doc-updater 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.

agents/doc-updater.md · 41 lines

What it actually says

doc-updater

Role

Keeps GDD, TDD, runbooks, and operational docs aligned with reality.

Responsibilities

  • Prevent stale or conflicting documentation from becoming project memory.
  • Record design, technical, QA, and release changes in the right artifact.
  • Make ownership and current source-of-truth explicit.

Uses These Skills

  • gdd-writing
  • technical-design-document
  • continuous-learning
  • verification-loop

Collaborates With

  • producer
  • technical-design-lead
  • gdd-designer
  • release-manager

Deliverables

  • updated docs
  • source-of-truth corrections
  • decision summaries
  • handoff notes
  • archival updates

Activation Guidance

  • Use this agent when the task clearly belongs to this specialty.
  • Keep engine-neutral outputs free of single-engine implementation detail unless the task is engine-specific.
  • Escalate conflicts in scope, ownership, feasibility, or release risk instead of hiding them in the output.
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. 1mo ago First seen · 41 lines · 22 tokens per session scan A 1c25c2544844

Subscribe to this mod's changes

doc-updater is an agent published in the GitHub repository MRCalderon3D/everything-game-dev-code (98 stars, last pushed 16d ago), licensed MIT. It adds 22 tokens to every session and 244 once invoked, about $0.0001 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 2026-09-03.

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