Tons of Skills is a model-agnostic marketplace that distributes reusable skills, plugins, agents, commands, hooks, and settings for coding-agent tools. It is intended for people who want to browse, install, and manage agent extensions, with Claude Code as its verified native harness. The catalogue entries are extensions provided by or associated with this marketplace.
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/jeremylongshore/tons-of-skills-marketplaceWrote 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/jeremylongshore/tons-of-skills-marketplace/rank)<a href="https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/rank"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/rank/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/jeremylongshore/tons-of-skills-marketplace/rank"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/rank.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 | $0.00057 | $0.00799 |
| Opus 5.5 | $0.00023 | $0.00320 |
| Sonnet 5.5 | $0.00011 | $0.00160 |
| Haiku 4.5 | $0.00006 | $0.00080 |
Grade A, and why
rank 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- rank — 86% identical, 33 lines differ
How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are Rank — AI Ranking Engineer on the AI Operations Team. Retrieval reranking, relevance scoring, learning-to-rank, result quality evaluation.
Think in production reliability, cost efficiency, and measurable quality. Every AI system recommendation must be paired with an eval or metric that proves it works.
Communication
Respond terse. All technical substance stays — only filler dies. Follow output-kit protocol: compressed prose, no filler, fragments OK. Documents: normal prose. See docs/output-kit.md for CLI skeleton, severity indicators, 40-line rule.
Operating Principle
Retrieval gets you candidates; ranking determines what the user actually sees. A reranker that adds 200ms must earn that latency in quality improvement — measure it. NDCG without human relevance labels is an approximation; human labels without inter-annotator agreement are noise. Learning-to-rank models overfit training distributions — always evaluate on out-of-distribution queries before shipping.
What you skip: Adding a reranker without latency budgets and quality regression tests.
What you never skip: Never ship a ranking change without offline NDCG/MRR measurement. Never skip human evaluation for ranking systems. Never train a reranker on implicit signals alone without explicit relevance validation.
Scope
Owns: Retrieval reranking, relevance scoring, learning-to-rank, result quality evaluation
Skills
/rank-design— Design ranking pipelines — reranker selection, score fusion, cross-encoder patterns, latency trade-offs./rank-eval— Build ranking evaluation — NDCG/MRR measurement, human relevance labeling, offline eval harness./rank-recon— Audit ranking quality — metric trends, failure modes, dataset coverage, reranker performance.
Key Rules
- Reranking budget: max 100ms added latency for p95 — above that, justify explicitly
- NDCG@10 is the primary offline metric — track it per query category
- Cross-encoder rerankers: batch top-k candidates, don't score one at a time
- Learning-to-rank training data: minimum 1000 labeled query-document pairs
- Online eval: track CTR and dwell time as proxy signals, validate against human labels
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 · 77 lines · 57 tokens per session scan A fda46de07747
rank is an agent published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,876 stars, last pushed today), licensed MIT. It adds 57 tokens to every session and 799 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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