Conciseness

The body is lean: numbered steps, a purpose table for the eight module files, and code blocks with no explanation of concepts Claude already knows. Only minor trim candidates exist, e.g. the four-bullet "Done" outcome summary restating behavior already implied by the steps and comments like "Keep a ref so getAppContext always reads fresh state" — borderline useful, not padding. This matches anchor 4 (efficient, minor over-explanation) rather than 5 (every token earns its place).

Actionability

Guidance is fully executable: an exact find command to locate the skill directory, a file-by-file copy plan, near copy-paste code for every integration point (provider wrap, getAppContext, tool wiring, panel and card rendering), and a concrete verify command ("pnpm tsc --noEmit"). Placeholders like `{/* existing children */}` and `<YourChatInput ...>` are app-specific and their flexibility is explicitly justified ("adjust path to match the app's conventions"), which the rubric permits.

Workflow Clarity

Seven clearly sequenced steps (read app → create module → wrap provider → wire tool → render panel → render card → verify) with a validation checkpoint in Step 7 (type-check plus running tests). It falls below anchor 5 because there is no error-recovery feedback loop — Step 7 says to confirm no errors but not what to do when errors appear — matching anchor 4 (most checkpoints present, minor validation gaps).

Progressive Disclosure

SKILL.md stays an overview: implementation bulk lives in a separate code/ bundle surfaced through a purpose table with one-level-deep references ("Read each file from `<skill-dir>/code/`"), which is well-signaled. It falls below anchor 5 because locating that bundle requires a find-command indirection and the referenced bundle files are not present/verifiable in the skill package being evaluated, leaving minor navigation and structure gaps.

Specificity

The description names a concrete deliverable ("TodoWrite panel for an already-approved in-app useAtlasChat UI") but stops at naming the domain plus one artifact; it does not list the concrete actions performed (adding the tool, wiring it into useAtlasChat, rendering the panel). It is above anchor 2 because "TodoWrite panel" is a specific artifact, not a generic action, but below anchor 4 because no several specific actions are enumerated.

Completeness

Both parts are present: the "what" ("TodoWrite panel for an already-approved in-app useAtlasChat UI") and an explicit "when" ("Triggers: TodoWrite, todo panel — only when useAtlasChat already exists"). It is below anchor 5 because the "what" is a terse fragment rather than a clear statement of the actions performed, though the "when" is explicit.

Trigger Term Quality

Explicit trigger terms "Triggers: TodoWrite, todo panel" are natural phrases a user would say, plus the governing condition "useAtlasChat already exists". It falls short of anchor 5 because common variations like "todo list", "task list", or "task panel" are missing.

Distinctiveness Conflict Risk

The description carves out a clear niche and actively routes conflicts away: "New AI features use integrate-fusion-agent" and "only when useAtlasChat already exists". It also names the prerequisite skill lineage (useAtlasChat), so minimal conflict risk remains.