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.
npx skills add GoogilyBoogily/googilyboogily-claude-power-tools --skill systems-gathergit clone --depth 1 https://github.com/GoogilyBoogily/googilyboogily-claude-power-toolsWrote 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.
[](https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/systems-gather)<a href="https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/systems-gather"><img src="https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/systems-gather/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.
<a href="https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/systems-gather"><img src="https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/systems-gather.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00045 | $0.02118 |
| Opus 5 | $0.00023 | $0.01059 |
| Sonnet 5 | $0.00009 | $0.00424 |
| Haiku 4.5 | $0.00005 | $0.00212 |
Grade A, and why
systems-gather 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.
How it starts
The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Systems Phase — Context Gathering
Gather all context needed to design game systems (Phase 2 of the Game Design Bible). This skill interactively selects which systems to design, asks targeted questions per system, dispatches parallel web research, and compiles a structured context file for the systems-generate skill.
Input
$ARGUMENTS — optionally --bible-dir <path> to specify the bible location.
Parse Arguments
Extract from $ARGUMENTS:
- Bible Directory:
--bible-dir <path>(default:docs/game-design-bible/)
Source Integrity Rules
Every factual claim in the context file must be traceable to research performed in this session.
- Cite your work. Reference specific file paths from Read or Grep results.
- Never reference prior Claude sessions or Claude memory.
- Assumptions are labeled, not hidden. Unresearched claims go in Open Questions.
Process
Human-in-the-loop: Never proceed past a decision point without user approval.
Phase 1: Load Foundation Context
-
Use Glob to check for
<bible-dir>/INDEX.md. If it does not exist:- Inform the user: "No Game Design Bible found at
<bible-dir>. Create one first with/game-design-bible:bible:create." - STOP
- Inform the user: "No Game Design Bible found at
-
Read
<bible-dir>/INDEX.mdand check phase statuses:- Phase 0 (Concept) must be
✅ Complete - Phase 1 (Core Loop) must be
✅ Complete - If either is incomplete, warn: "Phase 0 and Phase 1 must be complete before designing systems. Current status: [status]. Run
/game-design-bible:bible:continueto complete them first." - STOP unless the user explicitly overrides
- Phase 0 (Concept) must be
-
Read these foundation files:
<bible-dir>/DESIGN-PILLARS.md— the supreme court for all design decisions<bible-dir>/01-core-loop/core-loop.md— the fundamental gameplay loop
-
Extract and retain:
- All pillar names and their "What This Rules Out" lists
- The core loop's Action → Feedback → Reward → Motivation cycle
- Genre, scope, and platform from
<bible-dir>/00-concept/vision.md
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.
- 9d ago First seen · 226 lines · 45 tokens per session scan A 7ab67a393e84
systems-gather is a skill published in the GitHub repository GoogilyBoogily/googilyboogily-claude-power-tools (2 stars, last pushed 4mo ago), licensed MIT. It adds 45 tokens to every session and 2,118 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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