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three-division-tuning-method

Use when calculating pentatonic scale pipe lengths or tuning traditional Chinese instruments. Applies the three-division method (三分损益法) to derive 宫商角徵羽 from base unit 81 using alternating 2/3 and 4/3 ratios.

75

Quality

94%

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

92%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.

A focused, executable arithmetic procedure with clear sequencing and explicit validation. The only weakness is mild redundancy between the Overview, Principle, and step sections.

Suggestions

Consolidate the 'Overview' and 'Principle' sections into the Calculation Steps or a single note to remove the restated 2/3 vs 4/3 explanation and tighten token efficiency.

DimensionReasoningScore

Conciseness

Mostly lean arithmetic procedure, but the 'Overview' and 'Principle' sections restate the alternating 2/3 and 4/3 operations already shown step-by-step, so a few tokens could be trimmed; not 5 because not every section earns its place.

4 / 5

Actionability

Each step gives fully executable arithmetic with explicit values and operations (e.g., '81 × (2/3) = 54'), and the final table enumerates all resulting lengths—copy-paste ready guidance.

5 / 5

Workflow Clarity

Calculation steps are clearly sequenced (1–4) and followed by an explicit Validation section with three verification checkpoints (confirm lengths, verify alternation, check table consistency), satisfying the feedback-loop bar.

5 / 5

Progressive Disclosure

A compact (<50 line) single-task skill with no need for external references, organized into well-labeled sections (Overview, Base Values, Calculation Steps, Final Scale Lengths, Principle, Validation), meeting the simple-skill exception.

5 / 5

Total

19

/

20

Passed

Description

92%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 well-crafted description that clearly states both the capability and the trigger conditions in a distinct niche. Only minor room for improvement in synonym/variant coverage.

Suggestions

Add common natural variants a user might say, such as specific instrument names (e.g., guqin/古琴) or the romanized method name 'sanfen sunyi', to broaden trigger matching.

DimensionReasoningScore

Specificity

Lists multiple concrete actions—'calculating pentatonic scale pipe lengths', 'tuning traditional Chinese instruments', and 'derive 宫商角徵羽 from base unit 81 using alternating 2/3 and 4/3 ratios'—with comprehensive coverage of this niche; not below 4 because coverage is full rather than having minor gaps.

5 / 5

Completeness

Explicitly answers both what ('Applies the three-division method... to derive 宫商角徵羽 from base unit 81') and when ('Use when calculating pentatonic scale pipe lengths or tuning traditional Chinese instruments') with concrete trigger phrases.

5 / 5

Trigger Term Quality

Strong natural keyword coverage including 'pentatonic scale pipe lengths', 'tuning traditional Chinese instruments', 'three-division method (三分损益法)', and '宫商角徵羽'; held at 4 rather than 5 because some natural variants users might say (specific instrument names like guqin, or 'sanfen sunyi' romanization) are absent.

4 / 5

Distinctiveness Conflict Risk

A highly specific niche (ancient Chinese pentatonic pipe tuning via 三分损益法) with distinct triggers and minimal realistic overlap with other skills.

5 / 5

Total

19

/

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
baojie/shiji-kb
Reviewed

Table of Contents

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