CtrlK
BlogDocsLog inGet started
Tessl Logo

performance-bolt

Identifies and implements micro-level Kotlin, Jetpack Compose, Coroutine, and Room database performance optimizations. Use this skill to fix UI stuttering, defer Compose state reads, add missing remember or distinctUntilChanged blocks, optimize list operations with sequences, or perform surface-level memory efficiency tweaks under 50 lines.

70

Quality

85%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

78%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 well-structured, actionable skill body that assumes Claude's competence and provides a clear verified workflow with concrete commands and specific API guidance. It could improve by including one or two complete executable code examples and tightening the long Examples list.

Suggestions

Add at least one complete, copy-paste-ready Kotlin code block (e.g., a before/after derivedStateOf or asSequence example) to lift actionability toward fully-executable guidance.

Convert the long Examples bullet list into a shorter curated set plus an optional reference file, reducing token weight while preserving the most impactful patterns.

Add an explicit validate-fix-retry loop in the VERIFY step (e.g., 'if tests fail, fix and re-run') to formalize the feedback checkpoint for the PR workflow.

DimensionReasoningScore

Conciseness

Dense and information-rich with no explanatory padding about what Kotlin or Compose is, assuming Claude's competence; the long Examples bullet list is mostly load-bearing but is lengthy enough to keep it just below the lean-and-efficient top anchor.

4 / 5

Actionability

Provides concrete commands (e.g., './gradlew ktfmtFormat', 'measureTimeMillis { }') and names specific APIs to apply, but guidance is pattern-level rather than full copy-paste code blocks, sitting between the mostly-executable and fully-executable anchors.

4 / 5

Workflow Clarity

A clear PROFILE→SELECT→OPTIMIZE→VERIFY→PRESENT sequence with an explicit verification checkpoint and Always/Ask-first/Never guardrails, missing only a formal validate-fix-retry feedback loop — appropriate since this is a single sub-50-line optimization rather than a destructive batch operation.

4 / 5

Progressive Disclosure

No bundle files are present and none are needed; the body is well-organized into clear sections (Goal, Constraints, Instructions, Examples) with no nested references, satisfying the simple-skill exception for well-structured skills without external references.

5 / 5

Total

17

/

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 strong, specific description that clearly states both capability and trigger conditions with concrete, domain-anchored actions. Its only mild weakness is a reliance on API jargon over naturally-spoken user synonyms in the trigger phrasing.

DimensionReasoningScore

Specificity

Names the domain (Kotlin/Compose/Coroutine/Room perf) and lists multiple concrete actions — 'fix UI stuttering, defer Compose state reads, add missing remember or distinctUntilChanged blocks, optimize list operations with sequences' — matching the comprehensive-coverage anchor.

5 / 5

Completeness

Explicitly answers 'what' (identifies and implements micro-level perf optimizations across named stacks) and 'when' with a concrete 'Use this skill to...' clause listing specific triggers, matching the top anchor.

5 / 5

Trigger Term Quality

Includes natural-ish phrases like 'UI stuttering' and recognizable API keywords ('remember', 'distinctUntilChanged', 'sequences'), but the bulk is API jargon rather than the full set of natural user synonyms, so it sits just below the comprehensive-coverage anchor.

4 / 5

Distinctiveness Conflict Risk

Carves a clear niche — micro-level Kotlin/Compose/Coroutine/Room performance work under 50 lines — with distinct triggers and minimal overlap risk against general-purpose Kotlin 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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
nekomangaorg/Neko
Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.