Conciseness

The ~61KB/973-line body inlines large shared-framework sections ('Voice', 'AskUserQuestion Format', 'Completeness Principle', telemetry flows) and pads with explanations Claude does not need, e.g. the step-by-step data-flow tracing primer ('Where does input come from? (request params, props, database, API call)') and 15 cited 'Cognitive Patterns'. The design-doc-check bash block is even duplicated verbatim (lines 387-394 and 437-444), matching 'noticeably verbose; several unnecessary explanations or padded sections' rather than the mostly-efficient anchor 3.

Actionability

Fully executable guidance throughout: copy-paste bash blocks with explicit substitution instructions (preamble, gstack-review-log, telemetry), concrete output templates (ASCII coverage diagram, test-plan markdown, dependency tables, dashboard format), and precise directives like 'One issue = one AskUserQuestion call' and 'Only proceed to the next section after ALL issues in this section are resolved'. Common cases are covered by worked examples (the billing.ts coverage diagram).

Workflow Clarity

The sequence is explicit (Preamble -> Design Doc Check -> Step 0 Scope Challenge -> Sections 1-4 each with a STOP gate -> Required outputs -> Review Log/Dashboard -> Plan File Report) with checklists, a priority hierarchy, and feedback loops (re-run design-doc check after office-hours, retry-once on Edit failure). It falls short of anchor 5 due to the Step 0 numbering bug (two items numbered '5'), heavy interleaving of framework boilerplate with review steps, and duplicated check blocks — minor but real gaps.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are all absent) and everything — generic gstack framework content (telemetry, dashboard parsing, report formats) plus the full test-review methodology — is inlined in one monolithic file, so 'content that clearly belongs in separate files is inlined' applies. It is above anchor 1 because section headers provide navigation, but pointers like $GSTACK_ROOT/ETHOS.md and TODOS-format.md are cross-skill paths, not skill-bundle references, so there is effectively no progressive disclosure.

Specificity

'Lock in the execution plan — architecture, data flow, diagrams, edge cases, test coverage, performance' and 'Walks through issues interactively with opinionated recommendations' list several concrete review actions in third person. It is not anchor 5 because the enumeration of what the review produces is not fully comprehensive, and well above anchor 3, which permits only 1-2 concrete actions.

Completeness

Both questions are explicitly answered: the 'what' is concrete ('Eng manager-mode plan review' across architecture, tests, performance, with interactive opinionated recommendations) and the 'when' uses concrete trigger phrases ('Use when asked to...' and the proactive-suggestion clause). This clearly matches the anchor-5 example pattern of what + explicit when with trigger phrases.

Trigger Term Quality

Quoted trigger phrases 'review the architecture', 'engineering review', and 'lock in the plan' are natural things a user would say, plus the proactive condition 'when the user has a plan or design doc and is about to start coding'. A few natural variants are missing (e.g. 'review my plan', 'tech design review', 'sign off on the plan'), which fits 'good keyword coverage; a few natural terms missing' rather than anchor 5's comprehensive synonym coverage.

Distinctiveness Conflict Risk

'Eng manager-mode plan review' with the 'lock in the plan' trigger carves a mostly distinct niche. Minor overlap risk remains because 'review the architecture' and 'engineering review' could plausibly fire sibling review skills (plan-ceo-review, plan-design-review, code review), matching 'mostly distinct; minor overlap risk with closely related skills' rather than anchor 5's minimal conflict risk.