Conciseness

The body is efficient and operational — rules are terse, commands are specific, and nothing explains concepts Claude already knows. Minor trimmable redundancy remains (the three-opening-lines idea appears in both Overview and Context), so it sits at 4 rather than 5's "every token earns its place".

Actionability

Fully executable for an instruction-only skill: exact commands (`git rev-parse --git-dir`, `git rev-parse --git-common-dir`, `git commit <task file> -m "docs(tasks): update session status"`, `date`), a copy-paste-ready six-bullet `## Status` template, exact three opening report lines, and explicit state-decision logic covering the common cases. Per the rubric's code-vs-instruction note, absence of code is not penalized when guidance is this concrete.

Workflow Clarity

A clear 5-step sequence with explicit validation checkpoints: reading the task file from disk ("Do not rely on memory"), the worktree-vs-shared-checkout check before any commit, an edge-case path when no task file exists, and a 5-item Verification checklist. The operation edits a single task file and is neither destructive nor batch, so the feedback-loop cap does not apply.

Progressive Disclosure

No bundle files exist, but none are needed: every section (Context, Rules, Instructions, Verification) is core operational content that belongs inline, and the tagged, well-labeled sections make navigation easy. Content is appropriately placed and nothing that should be externalized is inlined.

Specificity

The description names the domain and two concrete actions — "writes a Status block into its task file and opens the report with the state, the operator's part and what is left" — but coverage is not comprehensive (no mention of follow-ups, branch reporting, or verification). This matches anchor 3 ("1-2 concrete actions, but not comprehensive") rather than 4, which requires several specific actions; wording like "the operator's part" is also slightly abstract.

Completeness

Both "what" (writes a Status block, opens the report with three lines) and "when" (explicit "Use when a session must record and report its own state") are present. Falls short of 5 because the trigger clause restates the capability rather than naming concrete user-side trigger phrases.

Trigger Term Quality

Good natural keyword coverage: "session", "state", "Status", "report", "task file", "what is left" are phrases a user would plausibly say. Not 5 because common variations such as "progress update", "status update", or "blocked" are missing, leaving a few natural terms uncovered.

Distinctiveness Conflict Risk

A clear niche (session self-status reporting) with explicit negative triggers — "Not for the project task list (tasks-overview) or goal check (check-goals)" — that disambiguate it from sibling skills, giving minimal conflict risk.