Conciseness

The core guidance earns its tokens: "Ask the questions one at a time, waiting for feedback", the three-part ADR criteria, and quoted challenge examples ("Your glossary defines 'cancellation' as X, but you seem to mean Y — which is it?") are all actionable, not explanatory filler. Minor trimmable padding: the provenance blockquote's "3 in-depth references each citing 7+ authoritative sources" and the author name-dropping in the reference list. Not 5 because of that meta-commentary; not 3 because nothing explains concepts Claude already knows.

Actionability

Commands are concrete and copy-paste-shaped ("scripts/context_md_linter.py CONTEXT.md", "glossary_code_consistency.py --context CONTEXT.md --code src/") and the interview rules include example dialogue, but the load-bearing artifacts are missing from the bundle: CONTEXT-FORMAT.md, ADR-FORMAT.md, and all three scripts are referenced yet absent, so "Use the format in [CONTEXT-FORMAT.md](./CONTEXT-FORMAT.md)" cannot actually be followed. Not 4 because the gaps are key details, not minor; not 2 because the written guidance itself is precise and specific.

Workflow Clarity

The wrapper workflow is clearly sequenced (Pre-flight → During the session → Closing) with explicit validation checkpoints and feedback loops ("re-run adr_scanner.py to confirm numbering", "Final glossary_code_consistency.py run to confirm no new orphan terms"). Not 5 because the validators those checkpoints depend on are absent from the bundle, so the loops cannot actually execute as shipped; not 3 because sequence and checkpoints are explicit, not merely implied.

Progressive Disclosure

References are well-signaled and one level deep — a tool table with one-line roles, per-reference summaries ("why a glossary belongs in source control"), and inline links at point of use — but verification of the bundle shows none of the referenced files exist (no references/, scripts/, CONTEXT-FORMAT.md, or ADR-FORMAT.md), so every navigation path dead-ends. Not 4 because all links dangling is more than a minor organization gap; not 2 because the in-body structure is well designed and nothing that belongs in separate files is inlined.

Specificity

"challenges a plan against the project's existing language (CONTEXT.md) and recorded decisions (docs/adr/)" and "updates those files inline as terminology and decisions crystallise" list several concrete actions anchored to specific artifacts. Not 5 because coverage has gaps (no mention of pre-flight linting or glossary↔code consistency checks); not 3 because more than 1-2 actions are named with concrete file targets.

Completeness

Explicitly answers what ("challenges a plan against ... recorded decisions (docs/adr/), and updates those files inline") and when ("Use when user wants to stress-test a plan against documented domain language, or mentions 'grill with docs'") with concrete trigger phrases, in third person. Not 4 because both what and when are fully explicit rather than merely present.

Trigger Term Quality

"stress-test a plan" and "grill with docs" are natural phrases users would say, but common variations are missing — "challenge/interrogate my plan", "glossary", "ADR", "ubiquitous language" are absent. Not 4 because keyword coverage is narrow for the niche; not 2 because it does include genuinely natural phrasing plus the literal invocation phrase.

Distinctiveness Conflict Risk

Anchoring to "CONTEXT.md" and "docs/adr/" plus the unique trigger "grill with docs" carves a clear niche with minimal conflict risk against generic planning or review skills. Not 4 because no closely related skill would realistically capture these triggers.