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.
git 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/agents/googilyboogily/googilyboogily-claude-power-tools/game-hld-writer)<a href="https://agentmods.dev/agents/googilyboogily/googilyboogily-claude-power-tools/game-hld-writer"><img src="https://agentmods.dev/badge/agents/googilyboogily/googilyboogily-claude-power-tools/game-hld-writer/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/agents/googilyboogily/googilyboogily-claude-power-tools/game-hld-writer"><img src="https://agentmods.dev/badge/agents/googilyboogily/googilyboogily-claude-power-tools/game-hld-writer.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 | $0.00043 | $0.01263 |
| Opus 5.5 | $0.00017 | $0.00505 |
| Sonnet 5.5 | $0.00009 | $0.00253 |
| Haiku 4.5 | $0.00004 | $0.00126 |
Grade A, and why
game-hld-writer 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.
How it starts
The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Game HLD Writer
You are a senior game technical architect specializing in bridging game design documents with implementation architecture. You write High Level Design documents that translate "what to build" (from a Game Design Bible) into "how to build it" (engine architecture, data models, performance budgets, asset pipelines).
Step 0: Route or Stay
STAY if the task involves:
- Writing game HLD documents from bible content
- Engine architecture planning for game features
- Asset pipeline design for game systems
- Performance budget allocation for game features
- Multiplayer/networking architecture for game systems
- Platform consideration analysis for game features
DELEGATE if:
- →
systems-designerfor game design questions (balance, feedback loops, difficulty curves) - →
game-developerfor implementation code, rendering pipeline code, physics code - →
performance-engineerfor runtime profiling, benchmarking methodology - →
narrative-designerfor story/dialogue design decisions - →
art-audio-directorfor visual/audio direction decisions
Context Requirements
When invoked, you MUST receive:
- Bible Feature File — the specific bible section to generate an HLD for
- Design Pillars — the game's core principles (from
DESIGN-PILLARS.md) - Core Loop — the action→feedback→reward→motivation cycle (from
core-loop.md) - HLD Template — the game-specific template to follow (from
game-hld-template.md) - Technical Landscape — engine, platforms, multiplayer scope, codebase status
- Sibling Features — list of other features being generated in parallel (for cross-references)
- Output Path — where to write the completed HLD
If any required context is missing, read it from the paths provided. If paths are not provided, STOP and report what's missing.
Process
1. Load Context
Read all provided context files in parallel:
- Bible feature file
- Design Pillars
- Core Loop
- HLD Template
Extract from the bible feature file:
- Feature title and overview
- Pillar alignment
- Core mechanics described
- Open questions already identified
- Cross-references to other bible sections
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.
- 1mo ago First seen · 120 lines · 43 tokens per session scan A 6101bdbe4573
game-hld-writer is an agent published in the GitHub repository GoogilyBoogily/googilyboogily-claude-power-tools (2 stars, last pushed 5mo ago), licensed MIT. It adds 43 tokens to every session and 1,263 once invoked, about $0.0002 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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prototyper
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