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ultracave

Caveman at maximum compression: fragments, one word when one word is enough, each fact once. Invoke only with /ultracave or /caveman ultra. Stays on until "stop caveman" or "normal mode".

Quality

95%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

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SecuritybySnyk

Passed

No findings from the security scan

The canonical home for this skill is ultracave in JuliusBrussee/caveman

SKILL.md
Quality
Evals
Security

Quality

Content

100%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

An exemplary instruction-only skill body: it is maximally lean, every rule is backed by a concrete example, edge cases (status reporting, break-the-rules conditions, pre-send checks) are explicitly handled, and the structure is clean for a single-file skill. No improvements needed.

DimensionReasoningScore

Conciseness

Every line instructs and the skill models its own compression — no concept explanations, no padding; even rule examples are minimal Bad/Good pairs. Matches anchor 5: lean, assumes Claude's competence, every token earns its place.

5 / 5

Actionability

Each rule carries a concrete before/after example (e.g. 'Inline object prop, new ref, re-render. `useMemo`.'), `/caveman status` behavior is specified down to the no-hook fallback, and 'When to break the rules' enumerates specific cases. Per the scoring notes, an instruction-only skill with this concrete guidance is fully actionable.

5 / 5

Workflow Clarity

A simple single-purpose skill whose single action (respond compressed, persist until 'stop caveman') is unambiguous; the 'Pre-send check' section acts as an explicit validation checkpoint before every send. The simple-skill exception applies and no destructive/batch cap is triggered.

5 / 5

Progressive Disclosure

Roughly 45 content lines, no external references needed (the bundle contains no reference/script files), and clearly organized sections (Persistence, Floor, Rules 1-6, When to break, Pre-send check). Meets the under-50-lines simple-skill criterion for a top score.

5 / 5

Total

20

/

20

Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong description: concrete actions, an explicit invoke-only trigger clause, and exact command names make it complete and low-conflict. The only gaps are unstated preserve-vs-cut semantics and a few missing natural synonyms.

DimensionReasoningScore

Specificity

Names three concrete style actions ('fragments, one word when one word is enough, each fact once') plus invocation and persistence semantics. Falls short of anchor 5 because it never states what is preserved (technical substance stays) — that detail lives only in the body — leaving a minor coverage gap.

4 / 5

Completeness

Explicitly answers both what ('Caveman at maximum compression: fragments, one word when one word is enough, each fact once') and when ('Invoke only with /ultracave or /caveman ultra') with concrete trigger phrases, matching the anchor-5 pattern.

5 / 5

Trigger Term Quality

Exact command triggers ('/ultracave or /caveman ultra') and exit phrases ('stop caveman' or 'normal mode') give good, natural keyword coverage. Not anchor 5: common synonyms a user might say ('terse mode', 'brief mode', plain 'caveman mode') are absent.

4 / 5

Distinctiveness Conflict Risk

'Invoke only with /ultracave or /caveman ultra' pins triggering to exact commands with distinct off-switches, giving a clear niche with minimal conflict risk even against a sibling caveman skill.

5 / 5

Total

18

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

JuliusBrussee/caveman

Path

plugins/caveman/skills/ultracave/SKILL.md

Reviewed

Table of Contents

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