audit-core-loop

audit-core-loop is a skill for Claude Code from GoogilyBoogily/googilyboogily-claude-power-tools. It costs 40 tokens per session (1,637 once invoked), scanned A, original, MIT.

A review tool for the core loop section of a game design bible. The core loop is the repeated set of actions players perform during play; this tool checks whether it is complete, testable, and connected to the game’s design goals.

In plain words
What is it for?
It is for reviewing the main gameplay cycle, prototype requirements, player-session structure, and coverage of the game’s design pillars.
Why use it?
It helps reveal missing steps, unclear player actions, weak session structure, and prototypes that are not specific enough to test.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; names the AskUserQuestion tool.

Part of the game-design-bible plugin — 28 skills, 1 agent shipped together

Good fit It is for reviewing the main gameplay cycle, prototype requirements, player-session structure, and coverage of the game’s design pillars.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/googilyboogily/googilyboogily-claude-power-tools/audit-core-loop
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.

Any agent
npx skills add GoogilyBoogily/googilyboogily-claude-power-tools --skill audit-core-loop
Clone the repo
git clone --depth 1 https://github.com/GoogilyBoogily/googilyboogily-claude-power-tools

Made for: Claude Code.

Or install game-design-bible, the plugin that ships this one along with the rest of its 28 skills, 1 agent.

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 audit-core-loop

README.md
[![agentmods](https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/audit-core-loop/github.svg)](https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/audit-core-loop)
Your own site
<a href="https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/audit-core-loop"><img src="https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/audit-core-loop/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 audit-core-loop

Your own site · 80×15
<a href="https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/audit-core-loop"><img src="https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/audit-core-loop.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,637 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 $0.00040 $0.01637
Opus 5 $0.00020 $0.00818
Sonnet 5 $0.00008 $0.00327
Haiku 4.5 $0.00004 $0.00164

Measured 9d ago against content hash beba951bb4b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

audit-core-loop 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 9d 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.

plugins/game-design-bible/skills/audit-core-loop/SKILL.md · 206 lines

How it starts

The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Core Loop Audit

Audit the Core Loop phase (Phase 1) of a Game Design Bible for quality, completeness, and correctness. Each issue is presented to the user one at a time with multiple resolution options, always including a research option that forks parallel web research agents.

Input

$ARGUMENTS

Parse Arguments

Extract from $ARGUMENTS:

  • Bible Directory: First non-flag argument (default: docs/game-design-bible/)
  • Context File Path: --context <path> (optional, enables context fidelity checks)

Process

Phase 1: Load Documents

  1. Read <bible-dir>/01-core-loop/core-loop.md.
  2. Read <bible-dir>/01-core-loop/prototype-spec.md.
  3. Read <bible-dir>/DESIGN-PILLARS.md — extract all pillar names.
  4. If --context provided, read the context file.
  5. Read the audit checklist at ${CLAUDE_SKILL_DIR}/references/checklist.md.

If core-loop.md does not exist, inform the user: "No core loop documents found at <bible-dir>/01-core-loop/. Generate them first with /game-design-bible:core-loop-generate." — then STOP.

Phase 2: Run All Checks

Run every check from the checklist against the core loop documents. For each check, record:

  • Check name and category
  • Status: PASS, WARN, or FAIL
  • Details: What was found (or not found)
  • Severity: 🔴 CRITICAL, 🟡 WARNING, or 🔵 INFO
  • Suggested fix: How to resolve

Also scan for open questions: TODO, TBD, FIXME, [ASSUMPTION], vague/placeholder text, or any unresolved items.

Build a prioritized issue queue ordered:

  1. 🔴 CRITICAL issues first
  2. 🟡 WARNING issues next
  3. 🔵 INFO issues last
  4. ❓ Open Questions last

Phase 3: Present Summary

Show the user the full breakdown before diving in:

## Core Loop Audit Summary: [Game Name]

**Bible Directory:** [bible-dir]
**Context file:** [path or "not provided"]

Found **N issues** and **M open questions**:
- 🔴 CRITICAL: [count] — must fix before proceeding
- 🟡 WARNING: [count] — should fix
- 🔵 INFO: [count] — optional improvements
- ❓ Open Questions: [count]

Starting sequential resolution...

Read the full file on GitHub · 206 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 206 lines · 40 tokens per session scan A beba951bb4b6

Subscribe to this mod's changes

audit-core-loop is a skill published in the GitHub repository GoogilyBoogily/googilyboogily-claude-power-tools (2 stars, last pushed 4mo ago), licensed MIT. It adds 40 tokens to every session and 1,637 once invoked, about $0.0002 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 2026-09-03.

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