The body is mostly dense and operational (tables for inputs, the six metrics, output shapes, and anti-patterns), but the Overview's motivational paragraph and the PractiTest '2026 State of Testing' citation are unnecessary context Claude does not need to execute. Not level 3 because not every token earns its place; not level 1 because the bulk is lean rather than padded explanation of basics.

Provides a 6-metric table with precise definitions (e.g., pass rate = passed/(passed+failed), skipped excluded), four named output shapes, and a fully worked example with real numbers plus a rendered markdown output and audit table. Not level 2 because the worked example and metric definitions are concrete and complete, not pseudocode.

A clear 4-step sequence (Ingest -> Compute -> Fill template -> Verify) with an explicit validation checkpoint ('Verify every numeric claim against the source before emitting') and a feedback loop (audit table; flag [unsourced - supply baseline] rather than inventing). Not level 2 because the validation checkpoints are explicit and elaborated, not merely implicit.

Keeps the overview inline and pushes the full per-shape templates to references/output-shapes.md (verified present), a clearly signaled one-level-deep reference with no nested chaining. Not level 2 because the split is clean and navigation is easy rather than content that should be separate being left inline.

Names concrete inputs (JUnit XML, Allure JSON, TestRail/Xray/Zephyr export) and concrete outputs (release notes, exec status update, stand-up Slack post) - multiple specific actions matching the level-3 anchor. The templated 'Build-an-X workflow' opener is vague filler, but the action list is comprehensive, so it is not the level-2 'not comprehensive' anchor.

Explicitly states what it does (turns a structured test-run artifact into a narrative markdown summary) and when to use it via an explicit 'Use when...' clause, satisfying both halves. Not level 2 because the 'when' is explicit rather than merely implied.

The 'Use when a manager needs a draft release note or stand-up summary from a single run' clause supplies natural terms a user would actually say, covering release-note, stand-up, and exec-status use cases. It is not level 2 because it goes beyond a single keyword to cover the realistic triggering phrasings.

Explicitly distinguishes from junit-xml-analysis / allure-reports / coverage-diff-reporter (tabular parsers) and currents-integration (cross-run trend analytics), carving a clear niche with distinct triggers. Not level 2 because the contrast with sibling skills removes the overlap risk.