Senior Mobile
borghei/Claude-Skills
A skill your agent uses when the user asks to "build a mobile app", "scaffold React Native project", "create SwiftUI views", "set up Jetpack Compose", "optimize mobile performance", "configure Expo…
Measure and improve mobile startup, scrolling, animation and resource usage on representative devices.
Install Mobile Performance
$ npx skills add WrongStack/WrongStack --skill mobile-performance -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install WrongStack/WrongStack mobile-performance --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/core/skills/mobile-performance .claude/skills/mobile-performance && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "mobile-performance" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/mobile-performance into .claude/skills/mobile-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-performance", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/mobile-performanceType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add WrongStack/WrongStack --skill mobile-performance -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install WrongStack/WrongStack mobile-performance --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/core/skills/mobile-performance .agents/skills/mobile-performance && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "mobile-performance" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/mobile-performance into .agents/skills/mobile-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-performance", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add WrongStack/WrongStack --skill mobile-performance -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install WrongStack/WrongStack mobile-performance --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/core/skills/mobile-performance .cursor/skills/mobile-performance && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "mobile-performance" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/mobile-performance into .cursor/skills/mobile-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-performance", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/WrongStack/WrongStack.git --path packages/core/skills/mobile-performance--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add WrongStack/WrongStack --skill mobile-performance -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install WrongStack/WrongStack mobile-performance --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/core/skills/mobile-performance .gemini/skills/mobile-performance && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "mobile-performance" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/mobile-performance into .gemini/skills/mobile-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-performance", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install WrongStack/WrongStack mobile-performanceInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add WrongStack/WrongStack --skill mobile-performance -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/core/skills/mobile-performance .github/skills/mobile-performance && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "mobile-performance" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/mobile-performance into .github/skills/mobile-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-performance", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add WrongStack/WrongStack --skill mobile-performance -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install WrongStack/WrongStack mobile-performance --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/WrongStack/WrongStack.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/core/skills/mobile-performance .opencode/skills/mobile-performance && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "mobile-performance" agent skill from https://github.com/WrongStack/WrongStack/tree/main/packages/core/skills/mobile-performance into .opencode/skills/mobile-performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-performance", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
mobile-performance- GitHub stars
- 371
- Token cost
- ~808 tokens
- SKILL.md length
- 278 words
- Files
- 1
- Skills in repo
- 100
- Repo updated
- First seen
- Licence
- MIT
At a glance
Measure and improve mobile startup, scrolling, animation and resource usage on representative devices.
- Works in 6 steps: Record device, OS, app build, dataset,… → Separate JS/Dart/UI/render/native work… → Measure the real task: startup… → …
- Diagnosing React Native/Flutter/native performance
- SKILL.md covers Selection card, Overview, Rules and Workflow, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Mobile Performance is an agent skill from WrongStack/WrongStack. Measure and improve mobile startup, scrolling, animation and resource usage on representative devices. Use when diagnosing React Native/Flutter/native performance; compare release builds under matched conditions rather than promising a universal frame rate.
Its SKILL.md is about 810 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Mobile, covering Cross-platform mobile apps, Mobile performance and App store release. It works with Flutter and React Native. The repository describes itself as: An AI coding agent that reads your code, edits files, runs commands, and reasons through bugs — across a terminal REPL, a full-screen TUI, and a browser UI, while you keep your… The licence is MIT.
When your agent uses it
- Diagnosing React Native/Flutter/native performance
- Compare release builds under matched conditions rather than promising a universal frame rate
Example prompts
- “/mobile-performance”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Record device, OS, app build, dataset, thermal/battery state and cold/warm conditions.
- Separate JS/Dart/UI/render/native work before choosing an optimization.
- Measure the real task: startup readiness, input latency, list scroll and memory across repeated navigation.
- Virtualize large collections and stabilize unnecessary render work only where a trace identifies cost.
- Dispose owned subscriptions/controllers/media/GPU resources; a lower initial heap does not prove leaks are fixed.
- Avoid debug-mode comparisons for production claims and keep accessibility/visual correctness in the acceptance check.
What it can do on your machine
Read from SKILL.md and the folder at commit a744bdc. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
reactnative.devdocs.flutter.devdeveloper.android.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Mobile Performance loads about 808 tokens when it runs. Until then it costs about 69 tokens; SKILL.md has 278 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from WrongStack/WrongStack at commit a744bdc, republished under its MIT licence (© WrongStack). 278 words, ~808 tokens.
Download SKILL.mdSave it as
.claude/skills/mobile-performance/SKILL.md (or your agent's skills folder).- name
- mobile-performance
- description
- Measure and improve mobile startup, scrolling, animation and resource usage on representative devices. Use when diagnosing React Native/Flutter/native performance; compare release builds under matched conditions rather than promising a universal frame rate.
- trigger
- Measure and improve mobile startup, scrolling, animation and resource usage on representative devices. Use when diagnosing React Native/Flutter/native…
- version
- 1.0.1
- required-capabilities
- filesystem.read
- optional-capabilities
- filesystem.write, execution.shell, verification.run, web.research
- metadata.routing-group
- mobile
- metadata.domain
- mobile
Mobile Performance
Selection card
- Task: Profile device startup, scrolling and memory. / TR: Cihaz açılışını, kaydırmayı ve belleği ölç.
- Start: Identify the platform, screen, device and native integration boundary.
- Finish: apply the acceptance checks below; report observed results and unresolved constraints.
Overview
Measure and improve mobile startup, scrolling, animation and resource usage on representative devices.
Use the current framework profiler and platform tools supported by the installed app/toolchain; latest framework targets are verified in the corresponding implementation skills.
Rules
- Record device, OS, app build, dataset, thermal/battery state and cold/warm conditions.
- Separate JS/Dart/UI/render/native work before choosing an optimization.
- Measure the real task: startup readiness, input latency, list scroll and memory across repeated navigation.
- Virtualize large collections and stabilize unnecessary render work only where a trace identifies cost.
- Dispose owned subscriptions/controllers/media/GPU resources; a lower initial heap does not prove leaks are fixed.
- Avoid debug-mode comparisons for production claims and keep accessibility/visual correctness in the acceptance check.
Workflow
- Reproduce the slow journey in a release/profile build.
- Capture profiler evidence and identify the dominant frame/task/resource bottleneck.
- Make a narrow change and repeat matched measurements with multiple samples.
- Test low-resource and lifecycle conditions relevant to the product.
- Report sample counts, distribution, conditions, behavior checks and tradeoffs.
Before returning
Before/after conditions match; bottleneck backed by trace; performance and correctness rechecked; emulator evidence separated from physical device results.
Sources
Versioned facts checked 2026-10-09; refresh authoritative sources before new installs/upgrades. React Native performance, Flutter performance, Android performance.
Skills in scope
- react-native-expo — React Native/Expo platform integration.
- flutter-mobile — Flutter lifecycle and platform integration.
- swift-ios — native Swift actor/lifecycle behavior.
- kotlin-android — native Android coroutine/lifecycle behavior.
- observability — runtime signals and correlation.
© WrongStack, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in packages/core/skills/mobile-performance of WrongStack/WrongStack.
Open the folder on GitHubat commit a744bdc
Compare with similar skills
Mobile Performance next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Mobile Performance this skillWrongStack/WrongStack | 371 | — | ~808 | Automated safety check: Pass | MIT | |
| Senior Mobileborghei/Claude-Skills | 891 | — | ~1.9k | Automated safety check: Pass | MIT | |
| Mobile Developeraiskillstore/marketplace | 433 | 7 repos | ~2.3k | Automated safety check: Pass | None | |
| Flutter Reducing App Sizebtwld/superdeck | 130 | — | ~1.4k | Automated safety check: Pass | BSD-3-Clause | |
| Android Designhashgraph-online/awesome-codex-plugins | 1.3k | — | ~2.5k | Automated safety check: Pass | Apache-2.0 | |
| React Native Best Practicesvercel-labs/openreview | 1.7k | 17 repos | ~1.1k | Automated safety check: Pass | MIT |
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Flutter Reducing App Size
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- Official
React Native Best Practices
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A prioritized rule set for React Native and Expo apps covering list performance, animation, navigation, UI patterns, state, rendering, monorepos and configuration.
App Store Review
safaiyeh/app-store-review-skill
Evaluates code against Apple's App Store Review Guidelines. An agent skill from safaiyeh/app-store-review-skill.
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Related
Works with
Categories
Questions about Mobile Performance
What does Mobile Performance do?
Measure and improve mobile startup, scrolling, animation and resource usage on representative devices. Mobile Performance is an agent skill from WrongStack/WrongStack. Measure and improve mobile startup, scrolling, animation and resource usage on representative devices.
When should I use Mobile Performance?
Mobile Performance fits situations like: diagnosing React Native/Flutter/native performance; compare release builds under matched conditions rather than promising a universal frame rate.
How do I install Mobile Performance in Claude Code?
Run `npx skills add WrongStack/WrongStack --skill mobile-performance -a claude-code`. Or copy the skill folder (packages/core/skills/mobile-performance in WrongStack/WrongStack) into .claude/skills/mobile-performance in your project. Claude Code loads it when a task matches its description.
How do I install Mobile Performance in Codex?
Run `npx skills add WrongStack/WrongStack --skill mobile-performance -a codex`. Or copy the skill folder (packages/core/skills/mobile-performance in WrongStack/WrongStack) into .agents/skills/mobile-performance in your project. Codex loads it when a task matches its description.
Can I use Mobile Performance in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add WrongStack/WrongStack --skill mobile-performance -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mobile-performance, .gemini/skills/mobile-performance, .github/skills/mobile-performance and .opencode/skills/mobile-performance in your project.
What does Mobile Performance need to run?
SKILL.md names no scripts, command-line tools or credentials: Mobile Performance is instructions for the agent only.
Does Mobile Performance access the network?
SKILL.md names 3 domains. As links in the text: reactnative.dev, docs.flutter.dev and developer.android.com. This is read from the text; nothing was executed.
Is Mobile Performance safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Mobile Performance use?
Mobile Performance is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Mobile Performance use?
About 808 tokens (SKILL.md is roughly 3.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Mobile Performance?
Skills that share tags, products or a category with Mobile Performance: Senior Mobile (borghei/Claude-Skills, 891 stars), Mobile Developer (aiskillstore/marketplace, 433 stars), Flutter Reducing App Size (btwld/superdeck, 130 stars) and Android Design (hashgraph-online/awesome-codex-plugins, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Mobile Performance?
WrongStack (a GitHub organization) maintains it in WrongStack/WrongStack, which has 371 GitHub stars. The repository holds 100 skills in this directory. The repository was last updated on October 10, 2026.
Source: WrongStack/WrongStack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.