Conciseness

The body is lean and assumes competence — no explanation of what pouring or mixing is — with every section adding operational value (exact command syntax, precise object identifiers, a worked example). It falls short of 5 because the Key Actions table repeats the three commands already given in Core Workflow, and "Purpose"/"When to Use" restate the frontmatter description.

Actionability

Guidance is fully executable for the environment: exact command syntax (`pour OBJ into OBJ`, `look around`, `look at OBJ`) and a concrete worked example with real object identifiers (`pour wood cup (containing red paint) into jug`). This matches the top anchor — copy-paste-ready commands with an example covering the common case.

Workflow Clarity

The three-step sequence (Identify → Perform → Verify) is clearly ordered and includes an explicit verification checkpoint ("`look at OBJ` on the target container to confirm the transfer succeeded"). It is not 5 because there is no feedback loop — no guidance on what to do if verification shows the transfer failed — and not 3 since the verify checkpoint is explicitly present rather than missing.

Progressive Disclosure

The body is well-sectioned and appropriately short, but the bundle contains references/action_primer.md (with environment-specific details like `examine OBJ`, `teleport to LOC`, and common rooms/containers) that the body never mentions, so that material is undiscoverable from SKILL.md; the "mix OBJ — separate skill" entry also has no pointer. This matches the anchor for structure present but references not clearly signaled.

Specificity

The description names one clear concrete action — "Transfers the contents of a source liquid container into a target container" — which matches the anchor for 1-2 concrete actions without comprehensive coverage. It stays below 4 because it does not list several distinct actions, and above 2 because the action stated is domain-specific and precise rather than generic.

Completeness

It explicitly answers both questions: what ("Transfers the contents of a source liquid container into a target container for mixing or preparation") and when ("Use this skill when you need to combine multiple substances... or when a liquid must be moved..."), with concrete trigger phrases. This matches the top anchor exactly; score 4 would apply only if the 'when' were less explicit.

Trigger Term Quality

Natural phrases like "combine multiple substances", "paints or chemicals", and "moved from one container to another" give good keyword coverage, but the most natural user verb for this skill — "pour" — is never mentioned, leaving a few natural terms missing. Not 5 (synonyms/extensions incomplete) and not 3 (coverage goes well beyond a single generic keyword).

Distinctiveness Conflict Risk

Liquid-transfer-between-containers is a clear niche with distinct triggers, but "for mixing or preparation" and "combine multiple substances" overlap with a separate mixing skill that the body itself acknowledges ("mix OBJ — separate skill"), creating minor overlap risk with a closely related skill. Not 5 due to that overlap; not 3 since the core transfer niche is unmistakable.