Conciseness

The body is dense and mostly earns its tokens, but includes unnecessary content that could be tightened: the Overview's PractiTest "70% of practitioners" statistic and manager-layer positioning do not guide execution, the verify/audit concept is restated in three places (How to use step 4, the Worked example audit table, and "Verify against the source"), and the ≥5-run rule for cross-run-trend appears twice. This fits anchor 3 ('mostly efficient but includes some unnecessary explanation or could be tightened') better than anchor 4's 'minor instances', but is far from anchor 2's padded verbosity.

Actionability

Guidance is fully executable for the common case: the Worked example walks real, mathematically correct numbers (1247/(1247+18) = 98.6%) to a copy-paste markdown banner, the pass-rate formula and banner thresholds (≥99% / 95–98.99% / <95%) are explicit, and full templates for all four shapes live in references/output-shapes.md. Per the scoring notes, absence of code in an instruction-only skill is not penalized when guidance is this concrete.

Workflow Clarity

Four numbered steps (ingest → compute → pick shape → verify) each map to a dedicated section, and validation is explicit: "walk each numeric claim in the draft and confirm it appears in the input data", with a concrete audit-table checklist, an unsourced-claim flagging protocol ([unsourced - supply baseline]), and error paths (INSUFFICIENT_RUNS, conflict flagging). This matches anchor 5's explicit validation and error-recovery handling.

Progressive Disclosure

The body keeps concise shape summaries and the worked example inline while delegating full fill-in templates to the real, one-level-deep references/output-shapes.md, which is clearly signaled in both the Output shapes section ("The full fill-in template for each shape is in [references/output-shapes.md]") and the References list. The reference file exists in the bundle and points no further, matching anchor 5's well-signaled one-level-deep structure.

Specificity

"Turns JUnit XML, Allure JSON or a TestRail, Xray or Zephyr export plus release context into a short narrative in markdown" names concrete input formats and a concrete output medium. It falls just short of anchor 5 because it describes a single transformation action rather than multiple specific actions, and sits above anchor 3 because the formats and output are specific rather than generic.

Completeness

It explicitly answers both: 'when' via "Use when a release note, status update or stand-up post needs a readable summary of one test run" and 'what' via "Turns JUnit XML, Allure JSON or a TestRail, Xray or Zephyr export... into a short narrative in markdown". This matches anchor 5's 'explicitly answers both what AND when with concrete trigger phrases' and exceeds anchor 4, where the 'when' is only generally stated.

Trigger Term Quality

"release note, status update or stand-up post" and "readable summary of one test run" are natural phrases a user would say. A few common variations (e.g. "test report", "QA summary", "CI results") are missing, so it matches anchor 4's 'good coverage, a few natural terms missing' rather than the comprehensive synonym/extension coverage of anchor 5.

Distinctiveness Conflict Risk

The narrative-summary niche ("short narrative", "release note", "stand-up post") is clearly distinct from tabular reporting skills. However, the format terms "JUnit XML" and "Allure JSON" are shared with parser skills like junit-xml-analysis, creating minor overlap risk — anchor 4 ('mostly distinct; minor overlap risk with closely related skills') fits better than anchor 5's minimal conflict risk.