Conciseness

Every line is directive with zero padding — "Commit per sub-task — one sub-task = one conventional commit (respect commitlint: lowercase subject, allowed scope)" packs rules into single lines, and no concept Claude already knows is explained. Matches the 'lean and efficient; every token earns its place' anchor; not 4 because there is nothing to trim.

Actionability

Concrete, executable guidance throughout — "run the project's lint, typecheck, and tests. Fix failures (never --no-verify)", the L1/L2/L3 checklist definitions, commitlint formatting rules, and the binary AskUserQuestion end gate. It stops short of 5 because several specifics (exact checklist contents, what hyperflow-audit/hyperflow-deploy do, the 'hyperflow doctrine') are delegated to materials not shown, leaving minor gaps an executor must fill from elsewhere.

Workflow Clarity

The sequence is explicit (implement → self-review → gates → commit → status update, then final integration review → end gate) with validation checkpoints and feedback loops: "Fix anything found before committing", "Fix failures (never --no-verify)", and "re-check git status before each commit". The L1-L3 checklist for a batch process matches the top anchor; not 4 because no checkpoint is missing or implicit.

Progressive Disclosure

At under 30 lines with no bundle files and no need for external references, the well-organized Per batch / After all batches / Rules sections fully satisfy the simple-skill exception. Mentioned companion skills are cross-links, not buried or nested references, so navigation is unambiguous; not 4 because there is no content that should be split out.

Specificity

"Works batches sequentially with self-review and per-task commits" names the domain and lists several concrete actions (sequential batches, self-review, per-task commits), matching the 'several specific actions; minor gaps' anchor. It falls short of 5 because broader coverage (status-block updates, memory capture, end gate) lives only in the body, and 3 would require only 1-2 actions.

Completeness

Both questions are explicitly answered: what ("Hyperflow execution phase... Works batches sequentially with self-review and per-task commits") and when ("Use when a task file exists in .hyperflow/tasks/ and the work needs building") with concrete trigger phrases. Matches the top anchor exactly; not 4 because the 'when' clause is fully explicit, not merely adequate.

Trigger Term Quality

"verbs like build, implement, add, refactor, 'wire up', 'run the plan', 'execute the task'" plus the explicit ".hyperflow/tasks/" path trigger gives comprehensive natural-term coverage including synonyms and the concrete file location. Not 4, because no common variation a user would say for this niche is conspicuously missing.

Distinctiveness Conflict Risk

The trigger is gated on a task file existing in the niche directory ".hyperflow/tasks/" and the description names companion skills in the hyperflow pipeline, giving it a clear niche with minimal conflict risk. Generic verbs like 'implement' alone could overlap, but the path gate disambiguates, keeping it at 5 rather than 4.