Conciseness

Dense, high-value instruction with no explanations of concepts Claude already knows (e.g., "Every judgment call is a live control... bind it instead"), but a few motivational/rhetorical sentences ("Prompting for an intricate result directly is a slot machine", "One sitting, no ceremony") could be trimmed. Not 5 because not every token is pure instruction.

Actionability

Concrete guidance throughout — exact pitch shape, route pattern `/lab/<slug>`, save-config-as-JSON contract, the leva conditional-rows gotcha, and the two-line handoff rule — but no example artifacts (e.g., a sample saved config) and some heuristics remain abstract ("rebuild the process, not the output"). Per the instruction-only note this is not penalized for lacking code, but it is not fully copy-paste executable either.

Workflow Clarity

Strictly ordered phases ("two halves, in strict order: diagnose, then build"), the common failure named up front, and decision gates at every transition: the when-NOT-to-build checks, the stop-the-loop rule, the pitch-and-redirect beat before building, and harvest-from-saved-config-only. The invocation-variant table makes behavior unambiguous; this is not a destructive/batch skill so the validation cap does not apply.

Progressive Disclosure

Well-organized sections across four phases with one clearly signaled cross-skill reference (emil-get-creative), but the ~93-line body is a single monolith with no bundle files; it exceeds the under-50-line single-file exception and content like the gap taxonomy or build rules could plausibly live in a reference file.

Specificity

Lists several concrete actions ("diagnose why the direct path fails, propose the tool that closes that exact gap, put the taste decisions on live controls, and export exactly what the project needs"), but they are phrased at a high level and "export exactly what the project needs" names no concrete formats, leaving minor gaps in coverage.

Completeness

Explicitly answers both: the "what" covers analyze/diagnose/propose/build with controls and export, and an explicit "Use when..." clause names three concrete trigger conditions. Matches the anchor-5 example pattern of concrete trigger phrases; not 4 since the "when" is fully explicit.

Trigger Term Quality

Includes genuinely natural quoted trigger phrases ("build me a tool for this", "closer, but not quite", "burned a round or two of re-prompting on the same artifact") but misses common synonyms such as "make me a tool" or "keep tweaking the same result".

Distinctiveness Conflict Risk

Carves a clear niche (build a tool when direct prompting loops) with distinct triggers, but "describes a result the agent keeps missing" could overlap with ordinary iterative-refinement or editing skills, a minor conflict risk.