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…
Full mobile app development pipeline. An agent skill from revfactory/harness-100.
Install Mobile App Builder
$ npx skills add revfactory/harness-100 --skill mobile-app-builder -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install revfactory/harness-100 mobile-app-builder --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/revfactory/harness-100.git skills-src && mkdir -p .claude/skills && cp -r skills-src/en/17-mobile-app-builder/.claude/skills/mobile-app-builder .claude/skills/mobile-app-builder && 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-app-builder" agent skill from https://github.com/revfactory/harness-100/tree/main/en/17-mobile-app-builder/.claude/skills/mobile-app-builder into .claude/skills/mobile-app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-app-builder", 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/revfactory/harness-100/tree/main/en/17-mobile-app-builder/.claude/skills/mobile-app-builderType 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 revfactory/harness-100 --skill mobile-app-builder -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install revfactory/harness-100 mobile-app-builder --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .agents/skills && cp -r skills-src/en/17-mobile-app-builder/.claude/skills/mobile-app-builder .agents/skills/mobile-app-builder && 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-app-builder" agent skill from https://github.com/revfactory/harness-100/tree/main/en/17-mobile-app-builder/.claude/skills/mobile-app-builder into .agents/skills/mobile-app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-app-builder", 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 revfactory/harness-100 --skill mobile-app-builder -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install revfactory/harness-100 mobile-app-builder --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/en/17-mobile-app-builder/.claude/skills/mobile-app-builder .cursor/skills/mobile-app-builder && 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-app-builder" agent skill from https://github.com/revfactory/harness-100/tree/main/en/17-mobile-app-builder/.claude/skills/mobile-app-builder into .cursor/skills/mobile-app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-app-builder", 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/revfactory/harness-100.git --path en/17-mobile-app-builder/.claude/skills/mobile-app-builder--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 revfactory/harness-100 --skill mobile-app-builder -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install revfactory/harness-100 mobile-app-builder --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/en/17-mobile-app-builder/.claude/skills/mobile-app-builder .gemini/skills/mobile-app-builder && 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-app-builder" agent skill from https://github.com/revfactory/harness-100/tree/main/en/17-mobile-app-builder/.claude/skills/mobile-app-builder into .gemini/skills/mobile-app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-app-builder", 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 revfactory/harness-100 mobile-app-builderInstalls 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 revfactory/harness-100 --skill mobile-app-builder -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .github/skills && cp -r skills-src/en/17-mobile-app-builder/.claude/skills/mobile-app-builder .github/skills/mobile-app-builder && 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-app-builder" agent skill from https://github.com/revfactory/harness-100/tree/main/en/17-mobile-app-builder/.claude/skills/mobile-app-builder into .github/skills/mobile-app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-app-builder", 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 revfactory/harness-100 --skill mobile-app-builder -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install revfactory/harness-100 mobile-app-builder --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/en/17-mobile-app-builder/.claude/skills/mobile-app-builder .opencode/skills/mobile-app-builder && 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-app-builder" agent skill from https://github.com/revfactory/harness-100/tree/main/en/17-mobile-app-builder/.claude/skills/mobile-app-builder into .opencode/skills/mobile-app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mobile-app-builder", 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-app-builder- GitHub stars
- 1.3k
- Token cost
- ~1.8k tokens
- SKILL.md length
- 705 words
- Files
- 1
- Skills in repo
- 464
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Full mobile app development pipeline. An agent skill from revfactory/harness-100.
- Works in 3 steps: Preparation (performed directly by the… → Team Assembly and Execution → Integration and Final Deliverables
- Requests like build me a mobile app
- SKILL.md covers Execution Mode, Agent Composition, Workflow and Scale-Based Modes, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Mobile App Builder is an agent skill from revfactory/harness-100. Full mobile app development pipeline. An agent team collaborates to perform UI/UX design, native/cross-platform code generation, API integration, and store deployment preparation. Use this skill for requests like 'build me a mobile app', 'app development', 'iOS app', 'Android app', 'Flutter app', 'React Native app', 'app UI design', 'app store deployment', 'app API integration', and other general mobile app development. Also supports API integration and store deployment for existing codebases. However, actual…
Its SKILL.md is about 1.8k 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 UI design, iOS development and Third-party API integration. It works with Flutter, React Native, Android and iOS. The licence is Apache-2.0.
When your agent uses it
- Requests like build me a mobile app
- App development
- React Native app
- App store deployment
Example prompts
- “build me a mobile app”
- “app development”
- “iOS app”
- “/mobile-app-builder”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 8e8d35c. 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
No URLs in SKILL.md.
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 App Builder loads about 1.8k tokens when it runs. Until then it costs about 163 tokens; SKILL.md has 705 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 revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 705 words, ~1,806 tokens.
Download SKILL.mdSave it as
.claude/skills/mobile-app-builder/SKILL.md (or your agent's skills folder).- name
- mobile-app-builder
- description
- Full mobile app development pipeline. An agent team collaborates to perform UI/UX design, native/cross-platform code generation, API integration, and store deployment preparation. Use this skill for requests like 'build me a mobile app', 'app development', 'iOS app', 'Android app', 'Flutter app', 'React Native app', 'app UI design', 'app store deployment', 'app API integration', and other general mobile app development. Also supports API integration and store deployment for existing codebases. However, actual build/compilation (Xcode, Gradle), actual store submission, and CI/CD pipeline setup are outside this skill's scope.
Mobile App Builder — Full Mobile App Development Pipeline
An agent team collaborates to generate mobile app UX design, code, API integration, and store deployment all at once.
Execution Mode
Agent Team — 5 agents communicate directly via SendMessage and cross-verify.
Agent Composition
| Agent | File | Role | Type |
|---|---|---|---|
| ux-designer | .claude/agents/ux-designer.md | UX/UI design, wireframes, design system | general-purpose |
| app-developer | .claude/agents/app-developer.md | Native/cross-platform app code generation | general-purpose |
| api-integrator | .claude/agents/api-integrator.md | API client, auth, caching | general-purpose |
| store-manager | .claude/agents/store-manager.md | Store metadata, ASO, review preparation | general-purpose |
| qa-engineer | .claude/agents/qa-engineer.md | Quality verification, cross-consistency checks | general-purpose |
Workflow
Phase 1: Preparation (performed directly by the orchestrator)
- Extract from user input:
- App Type: What kind of app (social, commerce, utility, game, etc.)
- Platform: iOS / Android / Cross-platform
- Framework Preference (optional): Flutter, React Native, SwiftUI, Jetpack Compose
- Backend API (optional): If an existing API spec exists
- Existing Files (optional): Design, code, API specs, etc.
- Create
_workspace/directory at the project root - Organize input and save to
_workspace/00_input.md - If existing files are provided, copy them to
_workspace/and skip the corresponding Phase - Determine execution mode based on request scope (see "Scale-Based Modes" below)
Phase 2: Team Assembly and Execution
Assemble the team and assign tasks. Task dependencies are as follows:
| Order | Task | Owner | Dependencies | Deliverables |
|---|---|---|---|---|
| 1 | UX/UI Design | ux-designer | None | _workspace/01_ux_design.md |
| 2a | App Code Generation | app-developer | Task 1 | _workspace/02_app_code/, 02_app_architecture.md |
| 2b | Store Metadata | store-manager | Task 1 | _workspace/04_store_listing.md |
| 3 | API Integration | api-integrator | Tasks 1, 2a | _workspace/03_api_integration.md |
| 4 | QA Verification | qa-engineer | Tasks 2a, 2b, 3 | _workspace/05_qa_report.md |
Tasks 2a (app code) and 2b (store metadata) run in parallel.
Inter-team Communication Flow:
- ux-designer completes → delivers screen structure/design tokens to app-developer, screenshot scenarios to store-manager, data fields to api-integrator
- app-developer completes → delivers Repository interfaces to api-integrator, permission list to store-manager
- api-integrator completes → delivers API client code to app-developer
- qa-engineer cross-verifies all deliverables. On 🔴 required fix: requests fix from relevant agent → rework → re-verify (max 2 rounds)
Phase 3: Integration and Final Deliverables
Organize final deliverables based on the QA report:
- Verify all files in
_workspace/ - Confirm all 🔴 required fixes from the QA report have been addressed
- Report final summary to the user:
- UX Design —
01_ux_design.md - App Architecture —
02_app_architecture.md - App Code —
02_app_code/ - API Integration —
03_api_integration.md - Store Deployment —
04_store_listing.md - QA Report —
05_qa_report.md
- UX Design —
Scale-Based Modes
| Request Pattern | Execution Mode | Deployed Agents |
|---|---|---|
| "Build me a mobile app", "full development" | Full Pipeline | All 5 |
| "Just design the app UI" | UX Mode | ux-designer + qa-engineer |
| "Generate code from this design" (existing design) | Code Mode | app-developer + api-integrator + qa-engineer |
| "Prepare app store deployment" (existing app) | Store Mode | store-manager + qa-engineer |
| "Review this app code" | Review Mode | qa-engineer alone |
Leveraging Existing Files: If the user provides design documents, code, or other existing files, skip the corresponding phases.
Show full SKILL.md (266 more words)Show less
Data Transfer Protocol
| Strategy | Method | Purpose |
|---|---|---|
| File-based | _workspace/ directory | Store and share main deliverables |
| Message-based | SendMessage | Real-time key info delivery, fix requests |
| Task-based | TaskCreate/TaskUpdate | Progress tracking, dependency management |
File naming convention: {order}_{agent}_{deliverable}.{extension}
Error Handling
| Error Type | Strategy |
|---|---|
| Platform unspecified | UX designer defaults to cross-platform (Flutter), reflecting both platform guidelines |
| No backend API | API integrator designs mock API, structured for easy replacement with real API |
| Agent failure | Retry once → proceed without that deliverable if failed, note in QA report |
| 🔴 found in QA | Request fix from relevant agent → rework → re-verify (max 2 rounds) |
| Framework compatibility | App developer suggests alternative framework with pros/cons comparison |
Test Scenarios
Normal Flow
Prompt: "Build me a to-do management app in Flutter. I need add/delete/complete-check, category classification, and notification features." Expected Result:
- UX Design: 5 screens (list/add/detail/category/settings), navigation structure, design system
- App Code: Flutter + Riverpod + go_router, MVVM structure, per-screen widgets/viewmodels
- API Integration: RESTful CRUD endpoints, auth, local cache
- Store: iOS + Android metadata, ASO keywords
- QA: Full cross-verification, consistency matrix
Existing File Flow
Prompt: "Generate iOS app code from this Figma design" + design file Expected Result:
- Existing design copied to
_workspace/01_ux_design.md - Code Mode: app-developer + api-integrator + qa-engineer deployed
- ux-designer, store-manager skipped
Error Flow
Prompt: "Build me an app quickly, anything is fine" Expected Result:
- App type unclear → UX designer proposes 3 trending app types then proceeds
- Full pipeline mode execution
- QA report notes "assumption-based design due to absent user requirements"
Agent Extension Skills
Extension skills that enhance each agent's domain expertise:
| Skill | Target Agent | Role |
|---|---|---|
mobile-ux-patterns | ux-designer | iOS HIG/Material Design 3 comparison, navigation patterns, design tokens |
app-store-optimization | store-manager | ASO metadata optimization, keyword strategy, review rejection response |
© revfactory, Apache-2.0. 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 en/17-mobile-app-builder/.claude/skills/mobile-app-builder of revfactory/harness-100.
Open the folder on GitHubat commit 8e8d35c
Compare with similar skills
Mobile App Builder 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 App Builder this skillrevfactory/harness-100 | 1.3k | — | ~1.8k | Automated safety check: Pass | Apache-2.0 | |
| Senior Mobileborghei/Claude-Skills | 874 | — | ~1.9k | Automated safety check: Pass | MIT | |
| Expo Brownfield Integrationmweinbach/agent-coworker | 156 | 2 repos | ~900 | Automated safety check: Notes | Custom licence | |
| Developing Mobile Appstelagod/code-abyss | 244 | — | ~258 | Automated safety check: Pass | MIT | |
| Android Designhashgraph-online/awesome-codex-plugins | 1.2k | — | ~2.5k | Automated safety check: Pass | Apache-2.0 | |
| Mobile Apps Createforcedotcom/sf-skills | 1.1k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 |
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Categories
Questions about Mobile App Builder
What does Mobile App Builder do?
Full mobile app development pipeline. An agent skill from revfactory/harness-100. Mobile App Builder is an agent skill from revfactory/harness-100. Full mobile app development pipeline.
When should I use Mobile App Builder?
Mobile App Builder fits situations like: requests like build me a mobile app; app development; React Native app; app store deployment.
How do I install Mobile App Builder in Claude Code?
Run `npx skills add revfactory/harness-100 --skill mobile-app-builder -a claude-code`. Or copy the skill folder (en/17-mobile-app-builder/.claude/skills/mobile-app-builder in revfactory/harness-100) into .claude/skills/mobile-app-builder in your project. Claude Code loads it when a task matches its description.
How do I install Mobile App Builder in Codex?
Run `npx skills add revfactory/harness-100 --skill mobile-app-builder -a codex`. Or copy the skill folder (en/17-mobile-app-builder/.claude/skills/mobile-app-builder in revfactory/harness-100) into .agents/skills/mobile-app-builder in your project. Codex loads it when a task matches its description.
Can I use Mobile App Builder 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 revfactory/harness-100 --skill mobile-app-builder -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-app-builder, .gemini/skills/mobile-app-builder, .github/skills/mobile-app-builder and .opencode/skills/mobile-app-builder in your project.
What does Mobile App Builder need to run?
SKILL.md names no scripts, command-line tools or credentials: Mobile App Builder is instructions for the agent only.
Does Mobile App Builder access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Mobile App Builder 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 App Builder use?
Mobile App Builder is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Mobile App Builder use?
About 1.8k tokens (SKILL.md is roughly 7.2k 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 App Builder?
Skills that share tags, products or a category with Mobile App Builder: Senior Mobile (borghei/Claude-Skills, 874 stars), Expo Brownfield Integration (mweinbach/agent-coworker, 156 stars), Developing Mobile Apps (telagod/code-abyss, 244 stars) and Android Design (hashgraph-online/awesome-codex-plugins, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Mobile App Builder?
revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,290 GitHub stars. The repository holds 464 skills in this directory. The repository was last updated on March 22, 2026.
Source: revfactory/harness-100 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.