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 rube-de/cc-skills --skill perfgit clone --depth 1 https://github.com/rube-de/cc-skillsWrote 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/rube-de/cc-skills/perf)<a href="https://agentmods.dev/skills/rube-de/cc-skills/perf"><img src="https://agentmods.dev/badge/skills/rube-de/cc-skills/perf/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/rube-de/cc-skills/perf"><img src="https://agentmods.dev/badge/skills/rube-de/cc-skills/perf.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 4 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 37 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 39 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 41 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 56 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00032 | $0.01290 |
| Opus 5 | $0.00016 | $0.00645 |
| Sonnet 5 | $0.00006 | $0.00258 |
| Haiku 4.5 | $0.00003 | $0.00129 |
Grade A, and why
perf 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 8d 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 — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DLC: Performance Analysis
Run performance checks against the current project and create a GitHub issue with findings.
Before running, read ../dlc/references/ISSUE-TEMPLATE.md now for the issue format, and read ../dlc/references/REPORT-FORMAT.md now for the findings data structure.
Step 1: Identify Performance-Sensitive Areas
Scan the project to determine which performance checks are applicable:
| Indicator | Check Type | Tools |
|---|---|---|
webpack.config.* / vite.config.* / next.config.* |
Bundle analysis | webpack-bundle-analyzer, vite-bundle-analyzer, @next/bundle-analyzer |
lighthouse in deps or CI config |
Lighthouse | lighthouse CLI |
bench / benchmark dirs or scripts |
Benchmarks | Project-specific (e.g. vitest bench, cargo bench, go test -bench) |
docker-compose* / Dockerfile |
Container analysis | dive, docker image inspect |
tsconfig.json / package.json (with build scripts) |
Build time | Time the build command |
Step 2: Run Performance Tools
Bundle Analysis (Web Projects)
Select the tool based on detected build config — run only the first matching tool:
# Detect bundler and run the matching analysis
if [ -f webpack.config.js ] || [ -f webpack.config.ts ]; then
npx webpack --json 2>/dev/null | jq '.assets[] | {name, size}'
elif [ -f vite.config.js ] || [ -f vite.config.ts ]; then
npx vite build --report 2>/dev/null
elif [ -f next.config.js ] || [ -f next.config.mjs ]; then
ANALYZE=true npx next build 2>/dev/null
fi
Lighthouse (Web Projects)
# If lighthouse CLI available and there's a dev server or static build
lighthouse http://localhost:3000 --output=json --quiet 2>/dev/null
Benchmarks
# Node.js
npx vitest bench --reporter=json 2>/dev/null
# Rust
cargo bench 2>/dev/null
# Go
go test -bench=. -benchmem ./... 2>/dev/null
# Python
python -m pytest --benchmark-only 2>/dev/null
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.
- 8d ago First seen · 132 lines · 32 tokens per session scan A 17153121e7f1
perf is a skill published in the GitHub repository rube-de/cc-skills (10 stars, last pushed 2d ago), licensed MIT. It adds 32 tokens to every session and 1,290 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 2026-08-31.
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