Conciseness

The body is a lean ~30-line protocol with no padding and no explanation of concepts Claude already knows; every line is a directive. It falls short of the level-5 'every token earns its place' anchor because of repetition (three near-identical 'ALWAYS' RULES lines across the two units, and the meta-control block largely restates what the pdsl units already enforce).

Actionability

Guidance is semi-concrete: it names exact files to LOAD (required-bootstrap.md, doc-design.md), but the paths hinge on an unresolved placeholder ({cf-studio-path}) and the pdsl block is a pseudo-DSL rather than executable instructions, leaving key details (how to resolve the path, what RequiredBootstrap does) missing. This matches 'Some concrete guidance but incomplete' rather than level 4's mostly-executable anchor.

Workflow Clarity

A coherent dispatch sequence is present (load bootstrap → run RequiredBootstrap → load doc-design.md as controlling protocol, traverse in order, evaluate gates), and one explicit checkpoint exists ('ALWAYS stop if any required fragment or rule cannot be followed'). However, the actual design-authoring steps are entirely deferred to external files not shown here, so checkpoints beyond the single stop rule are implicit, matching 'Steps listed but validation gaps'.

Progressive Disclosure

References to external material are one level deep and clearly signaled via LOAD directives, and the body is short. But there are no section headers or navigational structure — it is a flat rule/protocol dump — and the two referenced paths use a placeholder variable and are not part of any bundled files (no references/ or scripts/ exist), so navigation depends on files that cannot be verified. This lands between 'minimal structure' and 'good structure', closer to the level-3 anchor.

Specificity

The description names the domain (DESIGN/system/technical design) and concrete actions ("author, write, revise, generate, or produce a DESIGN"), but the verbs are near-synonyms for one capability rather than a list of distinct actions, and the actual work is opaque behind "delegating authoring and review to the core cf-write-docs engine". This matches the anchor 'Names domain and 1-2 concrete actions, but not comprehensive' more than level 4, which expects several distinct specific actions with only minor coverage gaps.

Completeness

Both 'when' ("Invoke when the user asks to author, write, revise..." with concrete example phrases) and 'what' (a thin preset binding the DESIGN artifact kind, delegating authoring/review to cf-write-docs) are present. Not a 5 because the 'what' leans on internal jargon ('Thin preset binding the DESIGN artifact KIND') that describes mechanism more than the user-visible outcome, leaving the anchor-5 requirement of a plainly explicit what-and-when not fully met.

Trigger Term Quality

Strong natural trigger coverage: "author, write, revise, generate, or produce a DESIGN", plus example phrases users would actually say ("generate DESIGN", "design the system", "define components / interfaces / architecture / boundaries"). A few common variations are missing (e.g. 'draft', 'spec', 'technical design doc', 'HLD/LLD'), so it sits just below the comprehensive level-5 anchor.

Distinctiveness Conflict Risk

The DESIGN keyword and its quoted trigger phrases carve out a clear niche that distinguishes it from sibling doc-kind skills, but phrases like "design the system" and "define components / interfaces / architecture / boundaries" carry some overlap risk with generic architecture/design skills, matching 'Mostly distinct; minor overlap risk'.