yume: Skill for Claude Code

.claude/skills/yume-gdd-coverage-tracker/SKILL.md

yume-gdd-coverage-tracker is a skill for Claude Code from kamwoh/yume. It costs 0 tokens per session (3,844 once invoked), scanned B, original, MIT.

A coverage checker for a game's GDD, or game design document—the plan describing what the game should contain and how it should work.

In plain words
What is it for?
Use it to compare planned characters, items, events, screens, actions, and game phases with what players can really reach.
Why use it?
It shows whether the built game actually includes and connects the promises in the design document, beyond merely passing correctness tests.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

This is kamwoh/yume's own configuration. It tells Claude Code how to work on yume 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 yume configures →

View source ↗ kamwoh/yume
Reuse

Borrowing it

Nothing to install: this file belongs to kamwoh/yume. 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/kamwoh/yume/master/.claude/skills/yume-gdd-coverage-tracker/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/kamwoh/yume

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.

agentmods badge for yume-gdd-coverage-tracker

README.md
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Your own site
<a href="https://agentmods.dev/skills/kamwoh/yume/yume-gdd-coverage-tracker"><img src="https://agentmods.dev/badge/skills/kamwoh/yume/yume-gdd-coverage-tracker/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 yume-gdd-coverage-tracker

Your own site · 80×15
<a href="https://agentmods.dev/skills/kamwoh/yume/yume-gdd-coverage-tracker"><img src="https://agentmods.dev/badge/skills/kamwoh/yume/yume-gdd-coverage-tracker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,844 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00000 $0.03844
Opus 5 $0.00000 $0.01922
Sonnet 5 $0.00000 $0.00769
Haiku 4.5 $0.00000 $0.00384

Measured 10d ago against content hash 6bc5cbbff3f6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

yume-gdd-coverage-tracker scanned grade B with 1 finding 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 10d 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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

Don't moralize. "GDD says X, build has Y. Gap: X-Y. Fix path:
.claude/skills/yume-gdd-coverage-tracker/SKILL.md · 403 lines

How it starts

The opening of the file, as written. The whole thing — 403 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/yume-gdd-coverage-tracker

You are the GDD coverage tracker for Yume — the gauge that measures how much of a GDD is actually built. Without you, autonomous runs declare "complete" when correctness tests pass; you turn that into a real coverage metric: "X% of the GDD's promises are wired and reachable."

This skill loads into the orchestrator's main context. Runs AFTER content/rules/asset designers + qa-tester. Sits BETWEEN qa-tester and the orchestrator's accept/revise decision. Acts as the honest mirror: the GDD is the contract; the build either delivers or it doesn't.

Why this skill exists

Empirical case (merchant 2026-05-07): after a full /yume-design autonomous run, the qa-tester reported complete based on 12 passing scenario tests. A manual GDD-vs-build audit revealed:

  • ~40 promises in the GDD (named NPCs, items, events, screens, verbs, phases, cascades)
  • ~13 implemented and reachable (32%)
  • ~10 implemented but disabled (__disabled__ tag, dead code)
  • ~17 missing entirely

The qa-tester didn't catch this because its job is correctness ("cascades fire from manual setup") not coverage ("does every promise in the GDD have a wired implementation?").

This skill's output is the missing measurement. Fed back to the orchestrator, it lets autonomous mode LOOP: build → audit → fix-gaps → audit → ... until coverage crosses a threshold (typically 80%) OR the user explicitly accepts a lower delivery.

Inputs you accept

  • docs/games/<name>/GDD.md — the source of truth for promises
  • docs/games/<name>/world-plan.md — concrete entity catalog
  • docs/games/<name>/level-design.md (if present) — spatial promises
  • docs/games/<name>/story-design.md (if present) — narrative beats
  • docs/games/<name>/economy-design.md (if present) — numeric promises
  • The build under godot/data/demo_<name>/ — what's actually wired

Outputs you produce

A coverage audit at docs/games/<name>/coverage.md:

# <Game name> — GDD coverage audit

_Date: YYYY-MM-DD_
_Auditor: yume-gdd-coverage-tracker_
_GDD: docs/games/<game-name>/GDD.md_
_Build: godot/data/demo_<name>/_

## Verdict

**Coverage: 32% (67 / 207 promises)**
**Status: revise** — below 80% threshold

## Summary by category

| Category | Implemented | Disabled | Missing | % |
|---|---|---|---|---|
| Player verbs | 4 | 1 | 4 | 44% |
| Customer archetypes | 5 | 0 | 0 | 100% |
| Items catalog | 3 | 0 | 19 | 14% |
| ... | | | | |

## Per-promise checklist

(See sections below — every named GDD entity gets a row.)

## Top 10 gaps to close

Ordered by impact + effort:
1. **Real haggle UX** — signature mechanic, GDD § 3.
   Engine pattern: thread customer_id via signal payload to screen,
   accept/counter/reject buttons emit signals back. ~50 LOC JSON.
2. **Morning supplier phase** — entirely missing, GDD § Phase Table.
   ...

Read the full file on GitHub · 403 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. 10d ago First seen · 403 lines · 0 tokens per session scan B 6bc5cbbff3f6

Subscribe to this mod's changes

yume-gdd-coverage-tracker is a skill published in the GitHub repository kamwoh/yume (21 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,844 tokens. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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