Conciseness

The body is dense, high-signal prose that defines its own coined vocabulary (context load, sprawl, sediment, leading word) instead of re-explaining concepts Claude already knows, and contains no padded passages. Every section introduces a distinct lever with its failure mode and cure, matching the 'lean and efficient; every token earns its place' anchor.

Actionability

Concrete, specific guidance throughout: worked micro-examples ("'fast, deterministic, low-overhead' becomes *tight*"), explicit tests ("settle a disagreement by running the document, not by debate"), and decisive rules ("When a sentence fails, delete the whole sentence"). Per the instruction-skill scoring note the absence of code is not penalized, but the guidance remains heuristic rather than fully copy-paste ready, so anchor 4 fits better than 5.

Workflow Clarity

This is a reference skill with no multi-step procedure or destructive/batch operations, so no validation cap applies; each section instead presents clear conditional decision rules ("Sharpen the bound first... Only if it is irreducibly fuzzy *and* you observe the rush, hide the later steps"). It sits at 4 rather than 5 because the levers are presented as peers without an integrated order for applying them when auditing a document.

Progressive Disclosure

No bundle files exist (no references/, scripts/, or assets/ directories) and the body points to no companion files, so all content is appropriately placed in a single well-sectioned SKILL.md of moderate size with easy header navigation. Nothing here clearly belongs in a separate file, and the skill's own doctrine (inline what every branch needs) is practiced, matching the top anchor's intent.

Specificity

The description enumerates five concrete levers ("context pointers, progressive disclosure, completion criteria, leading words and pruning") plus a concrete action ("creating or editing"), matching the 'several specific actions with minor gaps' anchor. It falls short of 5 because the levers are named as topics rather than operationalized actions.

Completeness

It explicitly answers both: what ("Levers for writing documents an agent reads: context pointers, progressive disclosure...") and when ("Use when creating or editing a skill, an agent, an instruction file, AGENTS.md or CLAUDE.md") with a concrete Use-when clause. This matches anchor 5; anchor 4's caveat ('when' could be more explicit) does not apply since the triggers are specific and enumerated.

Trigger Term Quality

"skill, an agent, an instruction file, AGENTS.md or CLAUDE.md" are terms users would naturally say, giving good keyword coverage including specific filenames. A few natural variants are missing (e.g. "prompt", "system prompt", "documentation"), keeping it below the comprehensive-synonym anchor 5.

Distinctiveness Conflict Risk

The niche (writing documents an agent consumes) is clear with distinct triggers like AGENTS.md and CLAUDE.md, matching 'mostly distinct; minor overlap risk'. It is not 5 because 'an agent' and 'an instruction file' are broad enough to overlap with prompt-engineering or documentation-writing skills.