Conciseness

The body is dense with framework-specific facts Claude cannot know (state keys, import paths, header names, jitter-prevention semantics) and avoids generic-concept explanations, but the one-paragraph "Why" section and the Do/Don't lists partially restate points already made in the pattern sections (e.g., the navigation-vs-URL-query rule appears twice). Anchor 4 fits: efficient with minor trimming possible.

Actionability

Six complete, executable TypeScript examples with real imports cover the common cases end to end: useNavigationState wiring, agent-side readAppState, tab-scoped selection writes, the Select registry hooks, the view-screen action, the navigate command, and useDbSync configuration. Specific key names, constants, and header values make the guidance copy-paste ready, matching anchor 5.

Workflow Clarity

Each pattern clearly separates the UI side from the agent side and sequences the write/read/command/consume flow, and no destructive or batch operations are involved so no validation cap applies. It falls short of anchor 5 because there is no explicit guidance ordering when to choose view-screen versus reading state directly beyond scattered Do/Don't entries, and no error-recovery checkpoints.

Progressive Disclosure

The skill is a single self-contained file with no bundle directories; sections are well-organized with clear headers, focused pattern sections, and a Related Skills index, so structure is good per anchor 4. It is not anchor 5 because detailed subsections (picked objects/Select, the settings-view shell) are inlined at a length that could eventually justify one-level-deep reference files if the skill grows.

Specificity

The trigger clause lists several concrete actions ("exposing UI state to the agent, implementing view-screen or navigate actions, wiring navigation state, or debugging agent context issues"), but the lead sentence "How the agent knows what the user is looking at" is a conceptual purpose statement rather than a named action, so coverage is strong but not comprehensive.

Completeness

Both parts are explicit: the what ("How the agent knows what the user is looking at") and a concrete "Use when..." clause with four specific triggers (exposing UI state, implementing view-screen or navigate actions, wiring navigation state, debugging agent context issues). The when-clause is more explicit and specific than the anchor-4 example, so anchor 5 fits best.

Trigger Term Quality

Terms like "UI state", "navigation state", "view-screen", "navigate actions", and "agent context" are natural phrases a developer on this framework would say, matching the anchor-4 example of good keyword coverage; no synonyms or common variations are offered, keeping it below anchor 5.

Distinctiveness Conflict Risk

Framework-specific terms ("view-screen", "navigate actions", "navigation state") carve a clear niche with minimal conflict risk, though "implementing view-screen or navigate actions" could mildly overlap with a general actions-creation skill, matching anchor 4 rather than 5.