Conciseness

Quick start, Key Rules, and the references/scripts listings are efficient, but roughly 30 of ~130 lines could be trimmed: the 20-line ASCII workflow box restates what a six-line list conveys, and the full feature_list.json and claude-progress.txt format examples duplicate content already in references/STATE-ARTIFACTS.md and references/PROGRESS-FORMAT.md. This fits 'mostly efficient but could be tightened' rather than the minor-trimming 4.

Actionability

Quick-start code is near copy-paste ready with real signatures (tracker.save_progress(accomplishments=..., blockers=..., next_steps=...) and features.update_status("auth-001", passes=True)), and every referenced script exists in scripts/. Minor gaps remain: project_dir is an undefined placeholder and no CLI or import-path invocation is shown, so it sits at 'mostly executable' rather than fully copy-paste ready.

Workflow Clarity

The workflow clearly sequences SESSION START / WORK / END and includes a verification checkpoint ("Verify feature passes" precedes "Update feature_list.json (passes: true)"), so the destructive-operation validation cap does not apply. Remaining gaps are minor: no validation of written JSON artifacts and no guidance on commit messages despite 'Commit with descriptive message'.

Progressive Disclosure

Structure is good: a concise overview with a clearly signaled, one-level-deep References section (both files exist on disk) and a Scripts section listing all four modules with descriptions. The main gap is that bulky artifact-format examples are inlined where the existing references already cover them, keeping it just below the well-split 5.

Specificity

The description lists five specific actions ("saving progress, loading context, managing feature lists, tracking git history, or restoring session state"), but they remain at a management-level abstraction without naming concrete artifacts like feature_list.json or claude-progress.txt, fitting the 'several specific actions; minor gaps' anchor rather than the comprehensive 5.

Completeness

Both parts are present: a what ("State persistence across autonomous coding sessions") and an explicit "Use when..." clause with concrete triggers. The what is a single abstract noun phrase rather than an enumeration of concrete capabilities, placing it just below the 5 anchor's fully explicit what+when.

Trigger Term Quality

Phrases such as "saving progress", "feature lists", "git history", and "restoring session state" are natural things a user would say, giving good keyword coverage. Common synonyms (e.g., "resume work", "checkpoint") and file extensions are absent, so it fits the 4 anchor rather than the comprehensive 5.

Distinctiveness Conflict Risk

The niche (cross-session state persistence for autonomous coding) is clearly framed and unlikely to trigger for unrelated skills, but broad phrases like "tracking git history" and "loading context" create minor overlap risk with generic git or context-management skills.