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/ever-works/directory-web-template/vercel-composition-patternsnpx skills add ever-works/directory-web-template --skill vercel-composition-patternsgit clone --depth 1 https://github.com/ever-works/directory-web-templateWrote 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/ever-works/directory-web-template/vercel-composition-patterns)<a href="https://agentmods.dev/skills/ever-works/directory-web-template/vercel-composition-patterns"><img src="https://agentmods.dev/badge/skills/ever-works/directory-web-template/vercel-composition-patterns.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 | $0.00058 | $0.00626 |
| Opus 5 | $0.00029 | $0.00313 |
| Sonnet 5 | $0.00012 | $0.00125 |
| Haiku 4.5 | $0.00006 | $0.00063 |
Grade A, and why
vercel-composition-patterns 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 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.
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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
13 files 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.
- AGENTS.md 22 KB
- metadata.json 530 B
- README.md 2.1 KB
- rules/_sections.md 829 B
- rules/_template.md 329 B
- rules/architecture-avoid-boolean-props.md 2.2 KB
- rules/architecture-compound-components.md 2.5 KB
- rules/patterns-children-over-render-props.md 1.8 KB
- rules/patterns-explicit-variants.md 2.3 KB
- rules/react19-no-forwardref.md 953 B
- rules/state-context-interface.md 4.9 KB
- rules/state-decouple-implementation.md 2.6 KB
- rules/state-lift-state.md 3.1 KB
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 · 90 lines · 58 tokens per session scan A e38e0eaa6093
vercel-composition-patterns is a skill published in the GitHub repository ever-works/directory-web-template (18 stars, last pushed 8d ago), licensed AGPL-3.0. It adds 58 tokens to every session and 626 once invoked, about $0.0003 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.
Other skills, from other repositories
pro-upgrade
Use when the user wants to upgrade their Ant Design Pro project to the latest version. Triggers on: upgrade pro, pro upgrade, migrate pro, update pro, 升级, 迁移项目, "how to upgrade", "update to latest", "keep project up to date".
frontend-technical-spec
Defines React environment, component architecture, state/data flow, build verification, and frontend non-functional criteria from repository evidence. Use when configuring or designing a React frontend, its build, or its runtime boundaries.
frontend-typescript-rules
Applies React/TypeScript type safety, component design, and state management rules. Use when implementing React components.
next-upgrade
Upgrade Next.js to the latest version following official migration guides and codemods.
add-shadcn-component
Add, wrap, or upgrade shadcn/ui components in this project using its two-layer convention. Use when adding a shadcn component, customizing one, upgrading shadcn, or when the user mentions shadcn, "ui component", or "components/ui".
vercel-composition-patterns
React composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture. Includes React 19 API changes.