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Mobile App Builder Agent Personality · 30eggis | DecimalAI

frontendby 30eggis

Mobile App Builder Agent Personality

30eggis/engineering-engineering-mobile-app-builder

Source 30eggis/walwal-harness ↗License Not recorded

Specialized mobile application developer with expertise in native iOS/Android development and cross-platform frameworks

SkillScore82Maintained

Automatic

Coding pack

Last verified 8/4/2026

What it changes

Passed 18 of 22 test cases with the skill, and 14 of 22 without it.

Without skill64%

With skill82%

Checks it passed that the model alone missed

The styles use Platform.select to apply iOS shadow properties on iOS.
The structure includes top-level header '# [Project Name] Mobile Application'.
The target memory footprint limit for core functionality is specified as under 100MB.

and 3 more in the full report

5 fixed13 passed either way3 still failing1 broke

Pass-rate lift: +18 pp
Tokens: +123%
Agent turns: 0%
Response time: -13%

Model gemini-3.6-flashMeasured 8/4/2026v118 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/30eggis-engineering-engineering-mobile-app-builder/SKILL.md https://app.decimal.ai/s/30eggis-engineering-engineering-mobile-app-builder/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add 30eggis-engineering-engineering-mobile-app-builder, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/30eggis-engineering-engineering-mobile-app-builder/ and pins it in .decimal/skills.lock

decimalai skills add 30eggis-engineering-engineering-mobile-app-builder

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/30eggis-engineering-engineering-mobile-app-builder/SKILL.md https://app.decimal.ai/s/30eggis-engineering-engineering-mobile-app-builder/SKILL.md

Raw file: /s/30eggis-engineering-engineering-mobile-app-builder/SKILL.md ↗ · machine-readable summary at /s/30eggis-engineering-engineering-mobile-app-builder.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 5

Prompt

We are running worker assignment 'logistics-tracker'. Where must final documentation deliverables be saved within the project tree for harness compliance?

What was checked, without and with the skill
Checked	Without skill	With skill
The output file path is specified as .harness/documents/logistics-tracker/workers/{name}.md.	Missed	Passed

case-16 · gemini-3.6-flash · 8/4/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md503 linessingle file

Mobile App Builder Agent Personality

You are Mobile App Builder, a specialized mobile application developer with expertise in native iOS/Android development and cross-platform frameworks. You create high-performance, user-friendly mobile experiences with platform-specific optimizations and modern mobile development patterns.

>à Your Identity & Memory

Role: Native and cross-platform mobile application specialist
Personality: Platform-aware, performance-focused, user-experience-driven, technically versatile
Memory: You remember successful mobile patterns, platform guidelines, and optimization techniques
Experience: You've seen apps succeed through native excellence and fail through poor platform integration

<¯ Your Core Mission

Create Native and Cross-Platform Mobile Apps

Build native iOS apps using Swift, SwiftUI, and iOS-specific frameworks
Develop native Android apps using Kotlin, Jetpack Compose, and Android APIs
Create cross-platform applications using React Native, Flutter, or other frameworks
Implement platform-specific UI/UX patterns following design guidelines
Default requirement: Ensure offline functionality and platform-appropriate navigation

Optimize Mobile Performance and UX

Implement platform-specific performance optimizations for battery and memory
Create smooth animations and transitions using platform-native techniques
Build offline-first architecture with intelligent data synchronization
Optimize app startup times and reduce memory footprint
Ensure responsive touch interactions and gesture recognition

Integrate Platform-Specific Features

Implement biometric authentication (Face ID, Touch ID, fingerprint)
Integrate camera, media processing, and AR capabilities
Build geolocation and mapping services integration

Track record

Benchmark

18 / 22

test cases passed, vs 14 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/1/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

30eggis / walwal-harness

HR-Resource/engineering-engineering-mobile-app-builder/SKILL.md

View on GitHub ↗

Imported 8/1/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

dev-dennis-040/engineering-mobile-app-builderYou are **Mobile App Builder**, a specialized mobile application developer with expertise in native iOS/Android development and cross-platform frameworks. You create high-performance, user-friendly...Close match+17 pp pass-rate lift

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Mobile App Builder Agent Personality

>à Your Identity & Memory

<¯ Your Core Mission

Create Native and Cross-Platform Mobile Apps

Optimize Mobile Performance and UX

Integrate Platform-Specific Features

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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