Conciseness

The body is dense with non-obvious domain specifics (PLC/capacity tag mechanics, ratchet percentages, ERCOT Uri pricing, VPPA settlement terms) that assume domain ignorance rather than Claude's intelligence, so most tokens earn their place. Minor over-explanations of concepts Claude already knows (GHG Protocol dual reporting, REC basics, 'Dollar-cost averaging for energy') plus a duplicated 'When to Use' section and figures repeated verbatim between Core Knowledge and Edge Cases keep it below anchor 5.

Actionability

For an instruction-only skill, the guidance is fully actionable: explicit numeric decision thresholds ('If simple payback < 5 years... justified'), a concrete formula ('Load factor = (Total kWh) / (Peak kW × Hours in period)'), verbatim negotiation scripts, and a specific RFP recipe ('Issue RFPs to 5–8 qualified REPs. Include 36 months of interval data, your load factor...'). Specific examples cover the common cases (contract renewal, PPA evaluation, demand charge ROI).

Workflow Clarity

Each decision framework is a numbered sequence with explicit branch checkpoints ('If energy cost variance >5% of budget triggers a management review, lean fixed'), and the escalation table pairs triggers with actions and timelines. It falls short of anchor 5 because there are no verification or feedback loops (e.g., validating a forecast or re-checking assumptions before recommending), though the skill involves no destructive or batch operations, so no cap applies.

Progressive Disclosure

Three one-level-deep references are clearly signaled with markdown links and all exist in references/; the Edge Cases section deliberately summarizes and defers ('Brief summaries here — see edge-cases.md for full analysis'), and Additional Resources consolidates navigation. Minor gap: some Core Knowledge subsections (Market Structures, Sustainability Reporting) are long enough that they could themselves live in reference files, leaving SKILL.md as a leaner overview.

Specificity

The description lists several specific capability areas ('tariff optimisation, demand charge management, renewable PPA evaluation, and multi-facility energy cost management') with only minor gaps. It falls short of anchor 5 because it is not a comprehensive list of concrete actions — RFPs, supplier negotiation, hedging, and sustainability reporting are all absent — and phrasing is nominal ('expertise for...') rather than action-based.

Completeness

The 'what' is clear (codified expertise for the enumerated procurement tasks), but there is no 'Use when...' clause or any equivalent explicit trigger guidance in the description, which caps completeness at 3 per the judging guidelines. It is above anchor 2 because the 'what' is specific and multi-part, not vague.

Trigger Term Quality

Good coverage of natural domain keywords ('electricity and gas procurement', 'tariff', 'demand charge', 'PPA', 'energy cost management') that users would plausibly say. A few natural terms are missing: 'power purchase agreement' spelled out, 'utility bills', 'supplier contracts', 'hedging', and the US spelling 'optimization'.

Distinctiveness Conflict Risk

A clear niche (C&I electricity and gas procurement) with distinct trigger terms like 'demand charge management' and 'renewable PPA evaluation' that would not naturally route users to unrelated skills. Conflict risk with other skills is minimal.