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 agentmods add skills/ralvarezdev/ralvaskills/performance-reviewernpx skills add ralvarezdev/ralvaskills --skill performance-reviewergit clone --depth 1 https://github.com/ralvarezdev/ralvaskillsWrote 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/ralvarezdev/ralvaskills/performance-reviewer)<a href="https://agentmods.dev/skills/ralvarezdev/ralvaskills/performance-reviewer"><img src="https://agentmods.dev/badge/skills/ralvarezdev/ralvaskills/performance-reviewer.svg" alt="Measured on agentmods" 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 | $0.00060 | $0.02193 |
| Opus 5 | $0.00030 | $0.01097 |
| Sonnet 5 | $0.00012 | $0.00439 |
| Haiku 4.5 | $0.00006 | $0.00219 |
Grade A, and why
performance-reviewer scanned grade A with 1 finding 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 3d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **`requests.get(...)` inside `async def`** — blocking HTTP. Use `httpx.AsyncClient`. The source is not reproduced here
Licensed GPL-3.0
The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 3d ago First seen · 112 lines · 60 tokens per session scan A cabb82bcc97a
performance-reviewer is a skill published in the GitHub repository ralvarezdev/ralvaskills (2 stars, last pushed 23d ago), licensed GPL-3.0. It adds 60 tokens to every session and 2,193 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
decompose
Phase 3: Dependency decomposition. Only invoke when explicitly requested by the user or by the yoink orchestrator.
curate-tests
Phase 2: Generate and discover tests, validate against real library. Only invoke when explicitly requested by the user or by the yoink orchestrator.
setup
Scaffold project: clone repo, install real library. Only invoke when explicitly requested by the user or by the yoink orchestrator.
yoink
Curate tests then decompose dependencies.
skill-creator
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Plugin Structure
This skill should be used when the user asks to "create a plugin", "scaffold a plugin", "understand plugin structure", "organize plugin components", "set up plugin.json", "use ${CLAUDEPLUGINROOT}", "add commands/agents/skills/hooks", "configure auto-discovery", or needs guidance on plugin directory layout, manifest…