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 skills add andrewsrigom/agent-skills --skill shadcn-composition-and-trigger-patternsgit clone --depth 1 https://github.com/andrewsrigom/agent-skillsWrote 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/andrewsrigom/agent-skills/shadcn-composition-and-trigger-patterns)<a href="https://agentmods.dev/skills/andrewsrigom/agent-skills/shadcn-composition-and-trigger-patterns"><img src="https://agentmods.dev/badge/skills/andrewsrigom/agent-skills/shadcn-composition-and-trigger-patterns/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/skills/andrewsrigom/agent-skills/shadcn-composition-and-trigger-patterns"><img src="https://agentmods.dev/badge/skills/andrewsrigom/agent-skills/shadcn-composition-and-trigger-patterns.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 | $0.00063 | $0.00735 |
| Opus 5 | $0.00032 | $0.00367 |
| Sonnet 5 | $0.00013 | $0.00147 |
| Haiku 4.5 | $0.00006 | $0.00073 |
Grade A, and why
shadcn-composition-and-trigger-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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
shadcn Composition And Trigger Patterns
Use this skill when the task is mostly about composing shadcn primitives into stable UI behavior.
Scope
asChildusage- trigger ownership and composability
- dialog, dropdown, sheet, popover, and command-surface composition
- local wrappers and boundaries
- avoiding wrapper sprawl and prop soup
Routing cues
asChild, trigger composition, dialog triggers, dropdown menu actions, command surfaces, local wrappers, Radix composition behavior, or deciding how to own a reusable product surface -> use this skill- if the problem is really theme tokens or dark mode -> use
shadcn-theming-tokens-and-dark-mode - if the problem is really field structure and validation flows -> use
shadcn-forms-and-field-primitives
Default path
- Start from the copied component code and compose behavior locally.
- Use
asChildwhen the trigger or interactive wrapper must preserve the existing element contract. - Keep open state local unless multiple siblings truly need coordination.
- Extract a local product wrapper only after the interaction pattern repeats.
- Prefer a few stable composition patterns over a large library of speculative wrappers.
When to deviate
- Lift state only when coordination or controlled behavior is clearly needed.
- Build a stronger wrapper when repeated product usage needs one shared semantic contract.
- Skip
asChildwhen the default trigger element is already the right contract.
Guardrails
- preserve semantics when composing triggers
- do not hide simple component usage behind unnecessary wrappers
- keep interaction ownership close to the surface that actually needs it
- treat copied shadcn code as editable when behavior or accessibility needs adjustment
Avoid
- wrapping every component immediately for “future flexibility”
- stacking several interactive wrappers without thinking through focus and semantics
- using
asChildmechanically when the default trigger is already correct - creating giant prop bags to drive what should be small local composition decisions
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.
- 9d ago First seen · 87 lines · 63 tokens per session scan A 081844fc2ae0
shadcn-composition-and-trigger-patterns is a skill published in the GitHub repository andrewsrigom/agent-skills (2 stars, last pushed 5mo ago), licensed MIT. It adds 63 tokens to every session and 735 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.
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