Conciseness

The body is mostly efficient procedural rules with no background explanations of concepts Claude already knows, but it includes repeated restatements: the immutability rule appears in step 2 ("Existing ADRs are immutable regardless of status"), step 5 ("no existing ADR was modified"), and Boundaries ("Modify application code, tests, plans, current-state context, or existing ADRs"); allowed statuses are listed in both step 1 and step 2; and the Boundaries section largely repeats constraints already enforced in the workflow steps (one ADR per request, no directory creation). This fits anchor 3 — mostly efficient but could be tightened — rather than anchor 4, since the redundancy spans several sections rather than being minor.

Actionability

Guidance is concrete throughout: the exact path pattern "context/decisions/YYYY-MM-DD-<decision-slug>.md", the exact allowed status list ("Proposed, Accepted, Rejected, Deprecated, Superseded"), explicit result field lists ("status, adr_path, decision, decision_status, created, supersedes, verification"), and a real referenced template. It falls short of anchor 5 only because no concrete example of a `written` or `blocked` result payload is given, leaving the return contract described but not exemplified.

Workflow Clarity

Six explicitly numbered steps with input validation at step 1 ("Confirm the request contains exactly one decision, qualifying evidence..."), a blocked error path carrying "the specific problem, its impact, and the required_action" as a recovery feedback mechanism, and an explicit verification checklist at step 5 ("exactly one ADR was created or one existing matching ADR was reused... no existing ADR was modified"). This matches anchor 5: clear sequence, explicit validation steps, and error-recovery guidance.

Progressive Disclosure

The body is cleanly sectioned (Purpose, Input, Qualification handoff, Workflow, Boundaries) and defers the ADR schema to a real, verified one-level reference: "Read references/adr-template.md before writing. It is the sole authority for the persisted ADR schema", explicitly instructing "do not restate or invent a parallel section contract here". The bundle contains exactly that one reference file, appropriately split and clearly signaled, matching anchor 5.

Specificity

The description names the domain and two concrete actions — "Record one already-qualified decision as an immutable ADR" and "reusing an equivalent active ADR when present" — but coverage is not comprehensive (no mention of statuses, validation, or result reporting), matching the anchor for domain plus 1-2 concrete actions. It is above anchor 2 because the actions are specific rather than generic, and below anchor 4 because it does not list several specific actions.

Completeness

The "what" is clear (record a decision as an immutable ADR, reuse an equivalent active ADR), but there is no "Use when..." clause or equivalent explicit trigger guidance; the invocation condition is only weakly implied by "already-qualified decision". Per the judging guidelines, a missing explicit trigger clause caps completeness at 3, which is also the best anchor fit.

Trigger Term Quality

"decision" and "ADR" are relevant natural keywords for this domain, but the acronym "ADR" is never expanded and common variations such as "architecture decision record", "decision record", or "document a decision" are missing. This fits the anchor for some relevant keywords missing common variations, not anchor 2 (the terms present are domain-natural, not generic) and not anchor 4 (no synonyms or variations are provided).

Distinctiveness Conflict Risk

The ADR-recording niche with qualifiers like "already-qualified decision", "immutable ADR", and "reusing an equivalent active ADR" is mostly distinct with only minor overlap risk against other decision- or documentation-writing skills, fitting anchor 4. It falls short of anchor 5 because the description contains no explicit distinct trigger phrases that would fully separate it from adjacent documentation skills.