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mining

Where diamonds spawn in Minecraft 1.20.

79

1.38x
Quality

67%

Does it follow best practices?

Impact

100%

1.38x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./agent-battle/skills/mining/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

87%Weight 40%Scale 1-3

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

The body is concise, highly actionable, and well-organized for a simple single-purpose skill, with concrete API payloads and recipes; its only gap is the absence of an explicit validation checkpoint in the mining workflow.

Suggestions

Add a brief verification step after descending (e.g. confirm deepslate_diamond_ore is present before committing to a corridor) to give the batch mining operation a feedback loop and lift workflow clarity.

Consider trimming or relocating the closing meta-paragraph about the skill being an example, as it does not aid the mining task.

DimensionReasoningScore

Conciseness

The body is lean and fact-dense (y=-58, deepslate variant, iron-pickaxe requirement, exact go_near payload) and assumes Claude's competence rather than explaining known concepts; the only minor soft padding is the brief closing meta-paragraph.

3 / 3

Actionability

It gives concrete, executable guidance — a copy-paste-ready go_near JSON payload, the iron_pickaxe recipe (3 iron_ingot + 2 sticks at a crafting_table), and explicit 'don't mine_block stone' direction — matching the fully-executable anchor.

3 / 3

Workflow Clarity

Steps are sequenced (craft iron pickaxe → descend via go_near → search both ore names → mine → relocate 30+ blocks after a vein), but there is no explicit validation checkpoint, and the core mining operation is a batch action the rubric caps at 2 without a feedback loop.

2 / 3

Progressive Disclosure

The skill is under 50 lines, needs no external references (none of references/scripts/assets exist), and is organized with clear bold inline sections, satisfying the rubric's simple-skill carve-out for a top score.

3 / 3

Total

11

/

12

Passed

Description

47%Weight 40%Scale 1-3

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

The description is distinctive and on a clear niche, but it only locates a topic without naming concrete actions and omits any explicit 'Use when' trigger, which caps both specificity and completeness.

Suggestions

Add a 'Use when...' clause stating when to invoke the skill (e.g. 'Use when mining diamonds in Minecraft 1.20+') to lift completeness to 3.

Name concrete actions in the description (e.g. locating diamond ore, descending efficiently, mining with an iron pickaxe) to raise specificity above 1.

Include common trigger variations such as 'mining', 'diamond ore', and 'best y-level' for fuller keyword coverage.

DimensionReasoningScore

Specificity

The phrase 'Where diamonds spawn in Minecraft 1.20' names a topic/domain but describes no concrete actions at all, matching the 'no actions; abstract language' anchor rather than the 'names domain and some actions' level above.

1 / 3

Completeness

It states what the skill covers (where diamonds spawn) but provides no 'Use when...' trigger guidance, so per the rubric guideline completeness is capped at 2 rather than reaching the explicit-trigger level 3.

2 / 3

Trigger Term Quality

Natural terms a user would say are present ('diamonds', 'Minecraft', 'spawn'), but common variations like 'mining', 'diamond ore', or 'best y-level' are missing, so coverage is partial rather than full.

2 / 3

Distinctiveness Conflict Risk

'Where diamonds spawn in Minecraft 1.20' carves a clear, narrow niche with distinct triggers and is very unlikely to fire for an unrelated skill.

3 / 3

Total

8

/

12

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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
anthropics/cwc-workshops
Reviewed

Table of Contents

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