Conciseness

The body is exceptionally lean and rule-dense ("No greeting, hedging, pleasantries, recap, or closer"), but the Why section partially explains what Claude already knows ("'Sure, I'd be happy to help' is ten tokens. 'the' is one.") — minor instances that could be trimmed. Anchor 4 (efficient, minor over-explanation), not 5.

Actionability

Instruction-only skill with fully concrete guidance: Bad/Good example pairs ("Bad: 'Sure! I'd be happy to help…' / Good: 'Bug in auth middleware. Token expiry check use `<` not `<=`'"), exact banned-word lists, exact preservation rules ("Never drop not/never/no/only/except. Numbers and units exact."), and a copy-paste-analog pre-send checklist. Matches anchor 5; not 4 because the examples cover the common cases with no real gaps.

Workflow Clarity

Simple single-purpose skill where the action is unambiguous: rules are numbered, precedence is explicit ("Compression and clarity conflict? Clarity wins"), break-the-rules conditions are enumerated, and the 'Pre-send check' acts as a validation checklist before every response. Per the simple-skill guideline this qualifies for 5; no destructive or batch operations exist, so no cap applies.

Progressive Disclosure

Self-contained, well-organized sections (Persistence, Why, Rules, When to break the rules, Pre-send check) with nothing that belongs in a separate file; the only bundle files are two display SVG assets that correctly stay out of the body. Easy to navigate; anchor 5.

Specificity

Names several concrete behaviors — "answer first, fluff gone, every technical fact kept" plus lifecycle behavior "Stays on until 'stop caveman' or 'normal mode'" — but coverage has minor gaps (e.g., no mention of exception/escape-hatch behavior or that it applies to every response). Fits anchor 4 (several specific actions, minor gaps), not 5 (not comprehensive) and not 3 (well beyond 1-2 actions).

Completeness

Explicitly answers both: what ("Terse caveman voice: answer first, fluff gone, every technical fact kept") and when ("Use for /caveman, 'caveman mode', 'talk like caveman', 'be brief', 'less tokens'") with concrete trigger phrases, plus exit conditions. Matches anchor 5 exactly; not 4 since the 'when' clause is fully explicit with specific triggers.

Trigger Term Quality

Includes the slash command (/caveman) and natural user phrases "caveman mode", "talk like caveman", "be brief", "less tokens" — good keyword coverage that clearly beats the single-domain anchor 3. Not 5 because common synonyms like "concise", "shorter answers", or "stop being verbose" are absent.

Distinctiveness Conflict Risk

The "caveman" niche with triggers like /caveman and "talk like caveman" is highly distinctive, but the generic brevity triggers "be brief" and "less tokens" create minor overlap risk with any general conciseness-style skill — anchor 4 (mostly distinct, minor overlap), not 5.