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android-performance

Optimize Android app startup, UI rendering, and frame stability with Baseline Profiles and lazy initialization. Use when reducing startup time, diagnosing jank, or improving rendering performance.

53

Quality

61%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/android/android-performance/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

22%

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

The skill provides a reasonable high-level checklist of Android performance concerns but lacks the concrete, executable guidance needed to be truly actionable. It reads more like a summary of best practices than an operational skill — there are no code examples, no benchmark commands, no Gradle snippets for Baseline Profiles, and no measurement/validation workflow. The referenced implementation.md file is missing from the bundle, leaving the progressive disclosure structure incomplete.

Suggestions

Add executable code examples: a Baseline Profile generator class, a Gradle configuration snippet for baseline profiles, and a concrete lazy initialization pattern using App Startup library.

Include a measurement/validation workflow: e.g., 'Run `./gradlew :app:generateBaselineProfile`, then benchmark with `androidx.benchmark` to verify startup improvement.'

Remove the redundant Anti-Patterns section — its content is already covered in sections 2 and 3.

Provide the referenced `references/implementation.md` bundle file, or inline the critical patterns if the file doesn't exist.

DimensionReasoningScore

Conciseness

Mostly efficient but has some redundancy — the 'Anti-Patterns' section repeats points already made in sections 2 and 3 (nested weights, Activity context in Singletons). Some guidance like 'Use Layout Inspector to find unnecessary recompositions' is fairly generic knowledge Claude would already have.

2 / 3

Actionability

No executable code, no concrete commands, no specific examples. Guidance is directional ('Generate Baseline Profiles', 'Use Layout Inspector', 'Load images with Coil/Glide') but lacks copy-paste-ready code snippets, Gradle configurations, or concrete implementation patterns. The referenced implementation.md is not provided in the bundle.

1 / 3

Workflow Clarity

No sequenced workflow or validation checkpoints. Steps are listed as bullet points without ordering, dependencies, or verification steps. For performance optimization tasks (which involve measurement before/after), there's no mention of benchmarking, profiling, or validating improvements.

1 / 3

Progressive Disclosure

References to implementation.md are present and one-level deep, which is good structure. However, the bundle has no files, so the referenced 'references/implementation.md' doesn't exist, making the progressive disclosure broken. The main file itself is reasonably organized with clear sections.

2 / 3

Total

6

/

12

Passed

Description

100%

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

This is a strong skill description that concisely covers specific capabilities, uses natural developer terminology, and includes an explicit 'Use when' clause with relevant trigger terms. It clearly carves out a distinct niche in Android performance optimization, making it easy for Claude to select appropriately from a large skill set.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'optimize Android app startup, UI rendering, and frame stability' along with specific techniques like 'Baseline Profiles and lazy initialization'. These are concrete, actionable capabilities.

3 / 3

Completeness

Clearly answers both what ('Optimize Android app startup, UI rendering, and frame stability with Baseline Profiles and lazy initialization') and when ('Use when reducing startup time, diagnosing jank, or improving rendering performance') with explicit trigger guidance.

3 / 3

Trigger Term Quality

Includes strong natural keywords users would say: 'startup time', 'jank', 'rendering performance', 'Baseline Profiles', 'lazy initialization', 'Android app', 'UI rendering', 'frame stability'. These cover common terms developers use when discussing Android performance.

3 / 3

Distinctiveness Conflict Risk

Highly distinctive with a clear niche: Android performance optimization specifically around startup, rendering, and frame stability. The mention of 'Baseline Profiles', 'jank', and 'lazy initialization' makes it very unlikely to conflict with other skills.

3 / 3

Total

12

/

12

Passed

Validation

81%

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

Validation9 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

9

/

11

Passed

Repository
HoangNguyen0403/agent-skills-standard
Reviewed

Table of Contents

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