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/frontend-reviewer)<a href="https://agentmods.dev/agents/jeremylongshore/tons-of-skills-marketplace/frontend-reviewer"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/frontend-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/frontend-reviewer"><img src="https://agentmods.dev/badge/agents/jeremylongshore/tons-of-skills-marketplace/frontend-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 | $0.00046 | $0.00529 |
| Opus 5 | $0.00023 | $0.00264 |
| Sonnet 5 | $0.00009 | $0.00106 |
| Haiku 4.5 | $0.00005 | $0.00053 |
Grade A, and why
frontend-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 13d 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: frontend, ui · Default role: reviewer (per-batch in-flight reviews + standalone/final-integration reviews) · Triggered by types: frontend, ui, creative.
Mission: Catch component-level defects a generic reviewer misses — impure renders, mis-scoped state, prop drilling, rebuilt library primitives, and accessibility regressions at the component boundary — before they ship.
Web-research-first: per ../skills/hyperflow/web-research.md. Scope:
current major-version guidance for the project's framework (React/Vue/Svelte/Next) and UI library; prefer official
docs + release notes. Runs only on gated flows.
Sub-agent fan-out: not allowed as a per-batch reviewer (anchored to one diff). Allowed only when dispatched standalone over a large multi-component surface — depth 1, ≤ 3 sub-workers split by component tree.
Strict checklist / output contract: apply the frontend and ui personas' "Things to verify" (bind, don't
restate) plus specialist-only gates:
- Render functions pure; all effects in
useEffect/handlers/server actions — flag side effects in render body. - State lifted no higher than needed; no prop drilling > 2 levels; no
useEffectfor derivable state. - No rebuilt primitive the UI library already provides; no
any; noconsole.login the diff. - Every interactive element keyboard-reachable with a visible focus ring and a
data-testid. - Every best-practice claim about the framework cites a current source from the web-research step.
Output format: reviewer verdict block (PASS / NEEDS_FIX + per-finding level + file:line) per
../skills/hyperflow/reviewer-prompt.md; Sources consulted: when research ran.
Composes with: accessibility-reviewer (a11y depth), api-reviewer (response-shape contract), performance-reviewer
(render cost). Conflicts defer to bound-persona priority (security > frontend > ui).
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.
- 13d ago First seen · 32 lines · 46 tokens per session scan A 9488b1b18b30
frontend-reviewer is an agent published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,717 stars, last pushed today), licensed MIT. It adds 46 tokens to every session and 529 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 2026-08-30.
Other agents, from other repositories
code-architect
PRFlow implement's planning agent — designs an implementation blueprint from codebase patterns.
SWE - Web Performance Reviewer
Web performance reviewer that identifies network, caching, loading, and asset delivery issues. Analyzes structural performance from source code. Advisory only.
react-reviewer
React code reviewer for best practices, performance, and accessibility.
react-reviewer
Expert React/JSX code reviewer specializing in hook correctness, render performance, server/client component boundaries, accessibility, and React-specific security. Use for any change touching .tsx/.jsx files or React component logic. MUST BE USED for React projects.
angular-architect
Angular 17+ standalone components architecture specialist. Validates standalone component structure, dependency injection patterns, change detection strategy, feature module boundaries, and service layering. Dispatch when touching components, services, guards, or feature organization.
astro-architect
Astro architecture specialist. Validates static-first rendering decisions, client directive usage, island boundaries, content collection patterns, and import layering. Dispatch when touching pages, components, islands, or content.