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kotlin-tooling-kotlin-toolchain

Load when building, running, testing, packaging, linting, or configuring a Kotlin/Java project with the Kotlin Toolchain (JetBrains' unified CLI, formerly Amper), when scaffolding a new or greenfield Kotlin project, or when the repo has project.yaml, module.yaml, or a ./kotlin wrapper. Skip for existing Gradle/Maven projects.

73

Quality

91%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

82%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 high-quality reference skill body: actionable commands and annotated config, clear sectioning, and a properly linked one-level reference file. The main gaps are mild verbosity in the iOS section, the absence of explicit validation feedback loops, and some config examples that could be offloaded to references.

Suggestions

Tighten the 'iOS apps' section — the Info.plist error transcript and cross-skill link can be condensed so the canonical pitfall stays without the full narrative.

Add an explicit validate-then-retry loop for at least one risky flow (e.g. after 'kotlin build' or plugin registration), so workflow_clarity can reach 5.

Move the full templates and multiplatform YAML blocks into references/ (or a second reference file) and keep only the minimal module.yaml inline, to improve progressive disclosure.

DimensionReasoningScore

Conciseness

The body is dense and information-rich with no padding of concepts Claude already knows, but sections like 'iOS apps' and the multiple full YAML blocks run long and could be trimmed slightly. Not a 5 because a few explanatory passages could be tightened; not a 3 because it consistently assumes competence and avoids verbosity.

4 / 5

Actionability

Provides copy-paste-ready commands ('./kotlin build', 'sdk install kotlintoolchain', 'kotlin check detekt apiCheck', '--skip <name>', '-m <module>', 'kotlin show checks') and a fully annotated, executable module.yaml example covering the common cases.

5 / 5

Workflow Clarity

Clear sequences exist for installation/wrapper detection, the iOS first-build flow, and a pre-build 'Untrusted project input' security checklist, but there are no explicit validate-then-fix-then-retry feedback loops. Not a 5 due to missing error-recovery checkpoints; not a 3 because the risky build/run path does carry an explicit pre-execution review checklist.

4 / 5

Progressive Disclosure

A real, one-level-deep references/examples.md file is clearly signaled via a named link ('See references/examples.md for a project-level config example') and the body is well-sectioned, but several full YAML examples (module.yaml, templates, multiplatform) are inlined rather than split out. Not a 5 because of the inline config bulk; not a 3 because structure and navigation are genuinely good.

4 / 5

Total

17

/

20

Passed

Description

100%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, well-crafted description that clearly states the tool's purpose, enumerates concrete trigger actions and file markers, and actively disambiguates from Gradle/Maven skills via an explicit skip clause. Third-person imperative voice is used correctly with no first/second-person drift.

DimensionReasoningScore

Specificity

Lists multiple concrete actions ('building, running, testing, packaging, linting, or configuring a Kotlin/Java project') plus 'scaffolding a new or greenfield Kotlin project', giving comprehensive coverage of the tool's capabilities.

5 / 5

Completeness

Explicitly answers both what (build/run/test/etc. Kotlin/Java projects with the Kotlin Toolchain) and when ('Load when...', 'when scaffolding...', 'when the repo has...'), with concrete trigger phrases and an explicit skip condition.

5 / 5

Trigger Term Quality

Covers natural user verbs (build/run/test/package/lint/scaffold), file-based triggers ('project.yaml, module.yaml, or a ./kotlin wrapper'), and the synonym 'formerly Amper', matching comprehensive keyword coverage.

5 / 5

Distinctiveness Conflict Risk

A clear niche (JetBrains' Kotlin Toolchain, formerly Amper) with distinct file triggers and an explicit 'Skip for existing Gradle/Maven projects' clause that minimizes conflict with adjacent build-tool skills.

5 / 5

Total

20

/

20

Passed

Validation

93%

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

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

relative_links

Relative link issues: 2 suspicious

Warning

Total

15

/

16

Passed

Repository
Kotlin/kotlin-agent-skills
Reviewed

Table of Contents

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