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 merlinhu1/codex-game-studio --skill cgs-perf-profilegit clone --depth 1 https://github.com/merlinhu1/codex-game-studioWrote 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/merlinhu1/codex-game-studio/cgs-perf-profile)<a href="https://agentmods.dev/skills/merlinhu1/codex-game-studio/cgs-perf-profile"><img src="https://agentmods.dev/badge/skills/merlinhu1/codex-game-studio/cgs-perf-profile/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/merlinhu1/codex-game-studio/cgs-perf-profile"><img src="https://agentmods.dev/badge/skills/merlinhu1/codex-game-studio/cgs-perf-profile.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 | $0.00044 | $0.00582 |
| Opus 5 | $0.00022 | $0.00291 |
| Sonnet 5 | $0.00009 | $0.00116 |
| Haiku 4.5 | $0.00004 | $0.00058 |
Grade A, and why
cgs-perf-profile 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 11d 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.
What it actually says
Codex Game Studio Performance Profile
Use this skill for performance profile work in Template Game.
Objective
Profile frame time, memory, loading, assets, rendering, scripting, and platform constraints.
Inputs
- AGENTS.md
- .codex/studio.json
- task-relevant files named by the user or task record
- production/timeline.md
- docs/market-overview.md
- tests/
- .codex/workflows/perf-profile.md
Arguments
- Objective or user request.
- Target files, scenes, assets, or docs.
- Constraints, deadlines, acceptance criteria, and verification command when known.
Procedure
- Clarify the requested profile frame time, memory, loading, assets, rendering, scripting, and platform constraints. and identify the current project stage.
- Collect evidence for Metric, Budget, Bottleneck.
- Separate blockers from warnings and include rollback or deferral options.
- Produce the requested artifact or review with clear file paths and verification evidence.
Write Targets
- production/
- docs/
Output Contract
- Summary
- Metric
- Budget
- Bottleneck
- Optimization
- Blocking issues
- Changed files or proposed files
- Verification evidence
- Next owner or decision
Quality Gates
- Metric
- Budget
- Bottleneck
- Optimization
- Scope remains bounded to the current task and project stage.
- Report labels unverified assumptions separately from evidence.
Decision Gates
- Continue only when the expected output can be verified or clearly labeled as a plan.
- Escalate to producer or qa-playtester when scope, ownership, or acceptance evidence is ambiguous.
- Stop before broad rewrites, generated prompt mirrors, or hidden lifecycle behavior.
Handoff
Report changed files, verification evidence, remaining risks, and the next owner or decision. Do not imply hidden hooks or autonomous background work.
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.
- 11d ago First seen · 81 lines · 44 tokens per session scan A 64282050f0ec
cgs-perf-profile is a skill published in the GitHub repository merlinhu1/codex-game-studio (54 stars, last pushed 1mo ago), licensed MIT. It adds 44 tokens to every session and 582 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 2026-08-30.
Other skills, from other repositories
godot-optimization
Use when optimizing Godot games — profiler, draw calls, physics tuning, memory management, and common bottlenecks.
qa-plan
Generate a QA test plan for a sprint or feature. Reads GDDs and story files, classifies stories by test type (Logic/Integration/Visual/UI), and produces a structured test plan covering automated tests required, manual test cases, smoke test scope, and playtest sign-off requirements. Run before sprint begins or when…
asset-audit
Audits game assets for compliance with naming conventions, file size budgets, format standards, and pipeline requirements. Identifies orphaned assets, missing references, and standard violations.
balance-check
Analyzes game balance data files, formulas, and configuration to identify outliers, broken progressions, degenerate strategies, and economy imbalances. Use after modifying any balance-related data or design. Use when user says 'balance report', 'check game balance', 'run a balance check'.
hybrid-prototype
Fast-lane prototype skill for the hybrid workflow. Builds a playable prototype in 2-3 days with minimal process overhead. Designed for discovery phase.
generated-raster-asset-pipeline
Define acceptance, validation, and runtime integration rules for raster assets generated with image models before they become real project content.