Conciseness

There is no padding and no explanation of concepts Claude already knows — the prose is almost entirely directives, tables, and templates. But the per-phase boilerplate ("Get user approval on X, then record it in `production/session-state/active.md`; it is written at Phase 7") repeats near-verbatim in Phases 1-4, and the update/focus-area write rules are stated twice (Phase 0e and again in Phase 7), so noticeable tightening is possible. Not anchor 4: these are more than minor trim instances; not anchor 2: the verbosity is repetition of genuinely needed rules, not unnecessary explanation.

Actionability

Fully executable throughout: exact grep invocations with pattern/glob/-A flags, verbatim AskUserQuestion prompts with labeled [A]/[B]/[C] options, exact output templates (Technical Requirements Baseline table, handoff block, sign-off status lines, the full document structure), and specific file paths for every artifact. This matches the anchor-5 "copy-paste ready, covers the common cases" bar.

Workflow Clarity

Phases 0-8 are explicitly sequenced with numbered sub-steps, an approval checkpoint before every write, and explicit feedback loops — "If either verdict is REJECT or INFEASIBLE, do not offer `Accept`", "Revise flagged items first" re-drafts and re-approves, plus a closing Gate-Check Readiness checklist. Anchors below 5 all describe missing or implicit checkpoints, none of which apply.

Progressive Disclosure

All external references are one level deep and clearly signaled with exact paths ("`.claude/docs/director-gates/[gate-id].md`", ".claude/docs/workflow-modes.md", engine-reference module docs), and the body even specifies that the spawned agent reads its own gate file rather than the parent. Minor gaps keep it from anchor 5: the config/density/workflow preface sits above the `# Create Architecture` H1, the full handoff template is inlined rather than referenced, and the ~585-line body carries several sections (e.g. the argument-mode table) that a reference file could absorb. Not anchor 3: references are clearly signaled and the inline content is procedural orchestration, not reference material that clearly belongs in separate files.

Specificity

Three concrete verb phrases — "Author the architecture blueprint before code is written", "Validates decisions against the pinned engine", "flags knowledge gaps" — parallel the anchor-4 example ("Extracts text from PDF files, fills forms, converts pages to images") in both count and concreteness. Not anchor 3, which covers only "1-2 concrete actions"; not anchor 5 because major scope (layer mapping, data flow, API boundaries, ADR audit) is left unmentioned, so coverage gaps are more than minor.

Completeness

The "what" is clear (author blueprint, validate decisions against the engine, flag knowledge gaps), but there is no "when" clause or equivalent explicit trigger guidance, which caps completeness at 3 per the rubric guideline. Not anchor 4 or 5, both of which require an explicit "Use when..." statement or concrete trigger phrases.

Trigger Term Quality

"architecture blueprint" is a plausible natural term, but the description is missing common variations and synonyms users would actually say ("design the architecture", "technical design", "architecture document"). Not anchor 4: "pinned engine" and "knowledge gaps" are project-internal jargon rather than natural user trigger phrases, so keyword coverage is only partial.

Distinctiveness Conflict Risk

The trigger word "architecture" is shared with sibling skills this body itself names ("/architecture-decision", "/architecture-review"), and the description states nothing that distinguishes this skill from them, so a user asking about "architecture" could route to the wrong skill. Not anchor 4: overlap with closely related same-family skills is more than minor; not anchor 2: "pinned engine" validation is too niche to conflict broadly.