The skill is fairly long (~300 lines) but most content is genuinely novel domain knowledge (mode differences, YAML structure, QA checklist, deployment paths, lessons learned). Some sections could be tightened — e.g., the repeated warnings about planning-first and the Citi engagement anecdotes appear multiple times. The git merge conflict markers at the bottom are noise. However, it largely avoids explaining things Claude already knows.

Highly actionable throughout: concrete bash commands for building and verification, specific YAML schema with required fields, exact file paths for reference implementations, a detailed QA checklist with specific rules (no em dashes, no contractions, exactly 3 next steps), mode-specific starter scripts, and precise dimensions/file size targets. The guidance is copy-paste ready and leaves little ambiguity.

The 9-step workflow is clearly sequenced with explicit validation checkpoints: mechanical QA with multiple verification modes (overlaps, repetition, titles, visual render), a three-pass polish process, a content rules checklist, and a strong gate ('never declare done without visual verification'). The feedback loop is explicit — fix and re-validate. The brief-before-YAML gate prevents the documented failure mode of premature coding.

Excellent progressive disclosure: the main skill provides a clear overview and workflow, then points to 8 well-organized reference files (narrative-planning, polish-pass, architecture, page-patterns, brand-standards, content-rules, qa-process, failure-modes) — all one level deep with clear descriptions. Scripts are listed separately. The inline content is appropriately scoped to what's needed for the overview.

Lists multiple specific concrete actions: 'proposals, capability decks, and case studies,' specifies output format details (16:9 landscape PDF, 13.33" x 7.5", 10-25 pages, full-bleed photography, branded graphic devices, ReportLab layout), and explicitly names what it does NOT do.

Clearly answers both 'what' (produce client-ready proposals, capability decks, case studies as branded landscape PDFs) and 'when' (explicit 'Use whenever' clause, detailed 'Trigger on' list, and 'Also trigger when' for contextual scenarios). Additionally includes 'Do NOT use for' with specific alternative skills.

Excellent coverage of natural trigger terms including 'proposal,' 'premier proposal,' 'capabilities deck,' 'capabilities piece,' 'case study,' 'BD follow-up,' 'build the proposal,' and contextual triggers like 'transcript, prospect, champion, buyer, SVP, CDO, CIO.' These are terms users would naturally use in a BD context.

Exceptionally distinctive with explicit negative boundaries listing five other skills by name (metis-pptx, metis-whitepaper, metis-pdf-creator, metis-legal-drafting, metis-capability-map) to prevent conflicts. The niche of BD proposals with specific output format is very clear.