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 cwklurks/ship-score --skill performancegit clone --depth 1 https://github.com/cwklurks/ship-scoreWrote 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/cwklurks/ship-score/performance)<a href="https://agentmods.dev/skills/cwklurks/ship-score/performance"><img src="https://agentmods.dev/badge/skills/cwklurks/ship-score/performance/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/cwklurks/ship-score/performance"><img src="https://agentmods.dev/badge/skills/cwklurks/ship-score/performance.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 | $0.00000 | $0.07544 |
| Opus 5.5 | $0.00000 | $0.03018 |
| Sonnet 5.5 | $0.00000 | $0.01509 |
| Haiku 4.5 | $0.00000 | $0.00754 |
Grade A, and why
performance 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 — 662 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Performance Category — Ship Score Sub-Skill
You are running the Performance category of a Ship Score production readiness audit. Follow every instruction below precisely. Do not add checks beyond the 7 defined here. Do not skip checks. Report exactly what you find.
Context You Receive
The orchestrator passes you:
Framework: [name] ([key])
Signals: [comma-separated detected features]
Root: [absolute path to project root]
Use the key value to select the correct framework-specific search patterns
below. If the key is unknown, use the Generic/Vite patterns. Use the
Root path for all file searches. If the project has a package.json, use
it as the primary dependency manifest.
Checks
Run all 7 checks in order. For each check, follow the verification steps, determine the status, and record the evidence.
Check 1: Image Optimization
Severity: High
What to look for:
Usage of an image optimization solution (framework-provided component or
third-party library) instead of raw <img> tags. Optimized images are served
in modern formats (WebP/AVIF), resized on demand, and lazy-loaded -- reducing
page weight by 30-80%.
Framework-specific verification:
| Framework | What to grep / check |
|---|---|
Next.js (nextjs) |
Grep source files (.tsx, .jsx) for the next/image component. Pattern: from ['"]next/image['"] or from ["']next/image["'] or import Image near next/image. Also grep for <Image component usage: <Image\b. |
Astro (astro) |
Grep source files (.astro, .tsx, .jsx) for astro:assets or @astrojs/image. Pattern: from ['"]astro:assets['"] or from ['"]@astrojs/image['"] or import.*Image.*from ['"]astro:assets['"]. Also grep for <Image or <Picture component usage. |
Nuxt (nuxt) |
Grep source files (.vue) for <NuxtImg or <nuxt-img or @nuxt/image. Pattern: `<NuxtImg |
SvelteKit (svelte) |
Grep source files (.svelte) for @sveltejs/enhanced-img or svelte-image. Pattern: `enhanced:img |
Vite/Generic (vite, node, unknown) |
Grep package.json for image optimization libraries: sharp, imagemin, @squoosh/lib, vite-plugin-image-optimizer, vite-imagetools, unplugin-imagemin. |
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 · 662 lines · 0 tokens per session scan A 8f3ffd99bd96
performance is a skill published in the GitHub repository cwklurks/ship-score (1 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 7,544 tokens. 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 2026-08-31.
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