Conciseness

The body is mostly lean code and tables, but the session-type detection logic is presented three times (ASCII lifecycle box, Session Types table, and Detection Logic code block), and the Quick Start section repeats the Operations section — clear tightening opportunities. Not anchor 4 because the redundant ASCII-art diagram plus triple duplication is more than 'minor instances of over-explanation'.

Actionability

The code examples are concrete and mostly match the actual API of the existing scripts/session_manager.py (detect_type, run_initializer, run_continuation, configure_auto_continue, shutdown, SessionConfig), covering the common cases. Not anchor 5 because 'SessionManager.create(...)' does not exist in the module, and the Scripts section lists three files (session_detector.py, auto_continue.py, prompts.py) that are not present in the bundle.

Workflow Clarity

The lifecycle is well sequenced (DETECT → CREATE → RUN → END, with a session-types table and multi-session flow diagram), but the auto-continuation loop is a batch/automated operation with no validation or error-recovery checkpoints — there is no guidance for what happens when a session fails, a feature never passes, or the SDK errors mid-run. Per the rubric's cap for batch operations lacking verification steps, workflow clarity cannot exceed 3.

Progressive Disclosure

The References and Scripts sections point to seven bundle files, but six do not exist — there is no references/ directory, and only scripts/session_manager.py is present, so the promised navigation paths lead nowhere. Content that clearly belongs in the (nonexistent) references — the full Initializer and Continuation prompt templates — is inlined in SKILL.md instead. Structure and signaling are decent, but broken references and inline duplication place this at anchor 2 rather than 3.

Specificity

The description names several concrete actions — 'starting sessions, resuming work, detecting session type (init vs continue), or managing auto-continuation between sessions' — beyond the generic lead phrase 'Session lifecycle management'. It falls short of anchor 5 because the lead 'what' is an abstract category rather than a comprehensive list of concrete operations.

Completeness

Both parts are present: the 'what' ('Session lifecycle management for autonomous coding') and an explicit 'Use when...' clause with concrete trigger phrases. It sits below anchor 5 because the 'what' is a single abstract noun phrase rather than an explicit enumeration of capabilities — the concrete actions only appear in the 'when' clause.

Trigger Term Quality

Phrases like 'starting sessions', 'resuming work', 'detecting session type', and 'auto-continuation' are natural things a user would say when they need this skill. It is not anchor 5 because common variations and file-name triggers (e.g. 'session status', 'feature_list.json', 'handoff') are absent.

Distinctiveness Conflict Risk

'Session lifecycle management' and 'resuming work' occupy a real niche (autonomous coding sessions), but the skill's own Integration Points list closely related siblings (ac-state-tracker, ac-autonomous-loop 'orchestrates sessions', ac-handoff-coordinator) whose descriptions plausibly overlap these triggers. Not anchor 4 because the overlap with a session-orchestration sibling skill is more than minor.