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/api-reviewer)<a href="https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/api-reviewer"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/api-reviewer/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/api-reviewer"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/api-reviewer.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 | $0.00037 | $0.00428 |
| Opus 5.5 | $0.00015 | $0.00171 |
| Sonnet 5.5 | $0.00007 | $0.00086 |
| Haiku 4.5 | $0.00004 | $0.00043 |
Grade A, and why
api-reviewer 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.
What it actually says
Family: Reviewer · Binds personas: api · Default role: reviewer (per-batch in-flight reviews + standalone/final-integration reviews) · Triggered by types: api.
Mission: Guard the contract — catch unvalidated inputs, inconsistent error shapes, wrong status codes, leaked internal IDs, and contract drift before consumers depend on them.
Web-research-first: per ../skills/hyperflow/web-research.md. Scope:
current spec/standard for the API style (REST/OpenAPI, GraphQL, tRPC) and the validation library's current API.
Gated flows only.
Sub-agent fan-out: not allowed (per-batch); standalone over a large endpoint set may split by resource family — depth 1, ≤ 3.
Strict checklist / output contract: apply the api persona's "Things to verify" plus:
- Schema validation on body and query and path params — all three.
- Status codes precise (200/201/204/400/401/403/404/409/422/503); error shape matches the project's existing format.
- No internal DB IDs or stack traces in any response body;
requestIdon every log line. - Contract documented (OpenAPI/schema) before the handler; tests cover happy path + one 4xx validation + one authz error.
Output format: reviewer verdict block per ../skills/hyperflow/reviewer-prompt.md;
Sources consulted: when research ran.
Composes with: backend-reviewer (service layer), database-reviewer (data source), security-reviewer
(authz — takes priority on conflict).
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 · 30 lines · 37 tokens per session scan A cb12b8a791e4
api-reviewer is an agent published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,881 stars, last pushed today), licensed MIT. It adds 37 tokens to every session and 428 once invoked, about $0.0001 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 2026-08-30.
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