Conciseness

Lean and efficient throughout: dense tables for templates, examples, runtimes, and gotchas; no explanations of concepts Claude already knows; version-sensitive material is quarantined in ai-sdk-legacy.md (pinned v6/v5/v4 setups) and deferred to the update skill. Every line carries CLI specifics Claude cannot know.

Actionability

Fully executable guidance: copy-paste-ready commands with flags for every subcommand ('npx assistant-ui@latest create my-app -t cloud-clerk', 'assistant-ui codemod <name> <source> [-d] [-p]'), exact remediations in gotchas ('remove the dependency and run npx assistant-ui@latest add thread'), and a runtime table mapping backend to hook, package, and reference.

Workflow Clarity

The 'CLI decision flow' provides a clear sequenced entry map and gotchas cover error recovery (registry failure: 'create still finishes... rerun the printed retry command') with dry-run flags documented. However, the batch-mutating 'update'/'upgrade'/'codemod' workflow lacks an explicit post-run verification step such as running 'doctor' afterward, leaving a minor validation gap.

Progressive Disclosure

Clear overview with well-signaled one-level-deep references: all 16 files in references/ exist and are catalogued with one-line content descriptions in the References section, per-adapter detail is split into those single-hop files, runtime-table rows link directly to their reference, and a Related Skills section routes to siblings.

Specificity

Names multiple concrete actions comprehensively: every CLI subcommand ('create, init, add, update, upgrade, codemod, doctor, info, mcp, agent') plus all twelve runtime hooks (useChatRuntime, useLangGraphRuntime, useAdkRuntime, etc.). Uses third-person voice ('Installs and configures'), and coverage of install, adapter selection, and maintenance has no notable gaps.

Completeness

Explicitly answers both questions: 'Installs and configures assistant-ui with the assistant-ui CLI... and picks the runtime adapter for a backend' (what) and 'Use for first-time install..., adding to an existing Next.js app (init), or keeping an install current' (when), with concrete trigger phrases matching the anchor-5 example.

Trigger Term Quality

Good keyword coverage with natural triggers like 'first-time install', 'adding to an existing Next.js app (init)', 'keeping an install current', and backend names (LangChain, Mastra, Electron, Expo). A few natural phrases a user might say before knowing the product (e.g., 'chat UI', 'AI chat components') are missing, and the dense hook enumeration leans technical over colloquial.

Distinctiveness Conflict Risk

Clear niche (assistant-ui CLI setup and runtime adapter choice) with distinct triggers ('npx assistant-ui@latest create', named hooks). The closing hand-off 'Once a runtime exists, use elements for the styled Thread, runtime for hooks and adapters, and update for a deep migration' actively routes away from sibling skills, minimizing overlap risk.