Conciseness

The body is lean and assumes Claude's competence, explaining only Letta-specific facts (the order-0 ownership model, capability guards) rather than general concepts. It falls short of anchor 5 because 'Guard panel work with letta.capabilities.ui.panels' is stated twice (workflow step 7 and the Rules section), a minor redundancy that could be trimmed.

Actionability

Guidance is concrete throughout: the exact file path '~/.letta/mods/statusline.tsx', 'order: 0', 'row(left, right, width)', 'panel.update()', and the disposer contract. It stops short of anchor 5 because the body contains no executable snippet itself — the concrete patterns are deferred one level deep to references/examples.md, leaving a minor gap for the most common case.

Workflow Clarity

The 9-step workflow is clearly sequenced with an up-front checkpoint (check whether the file exists, read before editing, preserve unrelated code) and conditional routing to the right reference. Not anchor 5: there is no post-edit verification step (e.g., typecheck or reload-check) — step 9 only summarizes and suggests /reload — a minor validation gap, though the operation is a single non-destructive file edit.

Progressive Disclosure

The body is a clear ~70-line overview with well-signaled, one-level-deep references: all three files (references/api.md, references/examples.md, references/migration.md) exist in the bundle, are pointed to in the workflow with explicit conditions, and are catalogued with one-line descriptions in 'Useful references'. Content is appropriately split and navigation is easy.

Specificity

'Creates, edits, and migrates Letta Code statusline mods' names the domain plus three concrete third-person actions, matching the anchor for several specific actions with minor gaps. It is not anchor 5 because narrower capabilities the skill actually supports (shell prompt/PS1 matching, bare /statusline summarization) are omitted from the description.

Completeness

It explicitly answers both questions: 'what' via 'Creates, edits, and migrates Letta Code statusline mods' and 'when' via the concrete trigger phrase 'Use when handling the /statusline command or continuing work started by /statusline'. This matches the anchor for both what and when with concrete triggers; the neighboring anchor 4 would require the 'when' to be less explicit than it is.

Trigger Term Quality

'statusline' and '/statusline' are exactly the natural terms a user would say, giving good keyword coverage. Not anchor 5: common variations like 'status line' (spelled out), 'prompt', 'PS1', or 'status bar' — which the body handles — are missing from the description.

Distinctiveness Conflict Risk

'Letta Code statusline mods' is a clear niche with a distinct command-level trigger ('/statusline'), making confusion with other skills minimal. It matches the anchor for a clear niche with distinct triggers; no broader anchor (e.g., overlap with generic 'mods' or UI skills) fits better.