What is opt-ui-install?

A skill for installing or upgrading the @reopt-ai/opt-ui package and adding its page templates. It can also connect the package’s app.css stylesheet to the application.

Use it to install or update opt-ui, add Block or Surface page templates, connect app.css, or inspect changes without editing.

It handles the differences between setting up the package, updating it, and adding UI templates, while avoiding paths meant only for the package’s own monorepo.

opt-ui-install — Skill for Claude Code and Codex by reopt-ai

Install

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.

Any agent

npx skills add reopt-ai/reopt-skills --skill opt-ui-install

Clone the repo

git clone --depth 1 https://github.com/reopt-ai/reopt-skills

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/reopt-ai/reopt-skills/opt-ui-install/github.svg)](https://agentmods.dev/skills/reopt-ai/reopt-skills/opt-ui-install)

Your own site

<a href="https://agentmods.dev/skills/reopt-ai/reopt-skills/opt-ui-install"><img src="https://agentmods.dev/badge/skills/reopt-ai/reopt-skills/opt-ui-install/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/reopt-ai/reopt-skills/opt-ui-install"><img src="https://agentmods.dev/badge/skills/reopt-ai/reopt-skills/opt-ui-install.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,706 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00094	$0.01706
Opus 5	$0.00047	$0.00853
Sonnet 5	$0.00019	$0.00341
Haiku 4.5	$0.00009	$0.00171

Measured 5d ago against content hash 833fc5213266, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

opt-ui-install 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 5d 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.

skills/opt-ui-install/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

opt-ui Install

This is NOT the opt-ui you know. Read node_modules/@reopt-ai/opt-ui/dist/docs/ before writing code.

When to apply

Consumer project depends on @reopt-ai/opt-ui. Triggers: "install", "init", "setup", "upgrade", "update", "surface", "add Surface". Never use packages/opt-ui/src/... paths in consumer code — monorepo-internal.

Invocation

/opt-ui-install                  # Auto-branch (missing → init, installed → upgrade)
/opt-ui-install block <name>     # Add a page-template Block (Surface is a legacy alias)
/opt-ui-install --upgrade        # Explicit upgrade
/opt-ui-install --check          # Analyze only (no edits)
/opt-ui-install --dry-run        # Analyze only

Step 1 — Pin agent rules into AGENTS.md / CLAUDE.md

Source: the module's own agent-rules file once it ships one (@reopt-ai/opt-ui does not, as of 1.12.5). Fallback: agent-rules.md bundled with this skill. Wrap content between:

<!-- BEGIN:reopt/opt-ui-agent-rules -->
…content from source…
<!-- END:reopt/opt-ui-agent-rules -->

Idempotent: replace only between markers. Never touch outside.

Step 2 — Consumer-side setup (this skill owns; docs cannot)

Public npm registry — no token or scoped .npmrc entry is required. Inspect the project .npmrc and npm config get @reopt-ai:registry; if the scope still resolves to GitHub Packages, remove only the legacy project entry @reopt-ai:registry=https://npm.pkg.github.com. Preserve unrelated registry/auth settings, and ask before changing user/global npm config.
Prereqs — Node 20+, React 19+, Tailwind CSS v4. bun or npm.
App-shell wiring — properties of the consumer app:
- Tailwind CSS v4: @import "tailwindcss"; then @import "@reopt-ai/opt-ui/tailwind.css"; in the root stylesheet (plus the @source directive — see getting-started).
- Optional app-frame base layer (1.6+): @import "@reopt-ai/opt-ui/app.css"; for focus-visible, cursor, reduced-motion, text-scale, shortcut-hint, and skip-link behavior. It is required when opt-shell policies should affect the whole document.
- <OptThemeProvider> at the app root (Next.js: app/layout.tsx outermost).
- Block CLI: npx @reopt-ai/opt-cli block add <slug> vendors page-template Surfaces from the signed public registry. block diff bulk-checks drift (--json / --exit-code for CI); block remove safely uninstalls. opt surface … is a deprecated alias.
- Component lookup: npx @reopt-ai/opt-cli component [name] (opt-cli 1.2+) prints bundled opt-ui / opt-charts metadata, props, and example code. opt-cli 1.3.1 regenerated that catalog for the 1.10–1.12 opt-ui additions; an older opt-cli will not list them.
- 1.7 → 1.12.5 are additive releases (detail primitives such as DescriptionList / Identity / EventTimeline / Flyout, catalog-screen components such as Callout / SegmentedControl / CatalogFrame / InspectorLayout / QueryFilterBar, plus FieldToken / Facet / InlineEdit and friends). 05-migration/01-breaking-changes.md has no entry past 1.5, so an upgrade from 1.6+ is a version bump plus a tsc run; do not invent breaking-change edits.

Read the full file on GitHub · 101 lines

Files

What ships with it

3 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.

Changes

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.

5d ago Changed · +1 lines 833fc5213266
10d ago First seen · 100 lines · 94 tokens per session scan A 4f682bc0c227

Subscribe to this mod's changes

opt-ui-install is a skill published in the GitHub repository reopt-ai/reopt-skills (1 stars, last pushed 6d ago), licensed MIT. It adds 94 tokens to every session and 1,706 once invoked, about $0.0005 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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