gem-implementer-mobile

gem-implementer-mobile is an agent for Claude Code from asleekgeek/claude-multiagent-catalogue. It costs 19 tokens per session (2,039 once invoked), scanned A, original, no licence file.

A mobile coding agent for building React Native, Expo, and Flutter applications using test-driven development, or TDD: writing tests to guide the code.

In plain words
What is it for?
Use it to build or change mobile app code in React Native, Expo, or Flutter with TDD.
Why use it?
It helps implement mobile features while keeping automated tests part of the development process.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to build or change mobile app code in React Native, Expo, or Flutter with TDD.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/asleekgeek/claude-multiagent-catalogue/gem-implementer-mobile
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/asleekgeek/claude-multiagent-catalogue

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for gem-implementer-mobile

README.md
[![agentmods](https://agentmods.dev/badge/agents/asleekgeek/claude-multiagent-catalogue/gem-implementer-mobile.svg)](https://agentmods.dev/agents/asleekgeek/claude-multiagent-catalogue/gem-implementer-mobile)
Your own site
<a href="https://agentmods.dev/agents/asleekgeek/claude-multiagent-catalogue/gem-implementer-mobile"><img src="https://agentmods.dev/badge/agents/asleekgeek/claude-multiagent-catalogue/gem-implementer-mobile.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,039 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.02039
Opus 5 $0.00010 $0.01019
Sonnet 5 $0.00004 $0.00408
Haiku 4.5 $0.00002 $0.00204

Measured 4d ago against content hash a1f4623181f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

gem-implementer-mobile scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/gem-implementer-mobile.md · 263 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 263 lines · 19 tokens per session scan A a1f4623181f0

Subscribe to this mod's changes

gem-implementer-mobile is an agent published in the GitHub repository asleekgeek/claude-multiagent-catalogue (2 stars, last pushed 3mo ago), with no licence file. It adds 19 tokens to every session and 2,039 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other agents, from other repositories

backend-development-tdd-orchestrator

Master TDD orchestrator specializing in red-green-refactor discipline, multi-agent workflow coordination, and comprehensive test-driven development practices. Enforces TDD best practices across teams with AI-assisted testing and modern frameworks. Use PROACTIVELY for TDD implementation and governance.

wshobson/agents · 61 tokens

backend-dev

Backend development agent for API implementation, data modeling, and testing. Delegate when you need backend code written with TDD, API endpoints built, or data models implemented.

krzysztofsurdy/code-virtuoso · 36 tokens

implementer

TDD implementation agent. Delegate when you have a concrete plan and want isolated red-green-refactor execution in a worktree.

krzysztofsurdy/code-virtuoso · 28 tokens

swift-developer

Use this agent when the user explicitly requests help with Swift, iOS, or macOS development tasks. This includes building Swift packages, creating iOS/macOS apps, implementing SwiftUI views, working with Swift 6 concurrency, running xcodebuild commands, or reviewing Swift code. Context: User is starting a new iOS…

hmohamed01/claude-code-plugins · 415 tokens

adversarial-validator

Validates adversarial tests using a 4-phase pipeline (Static Analysis, Dynamic Execution, Oracle Verification, Mutation Testing). Returns structured JSON verdict.

jimmc414/claude-code-plugin-marketplace · 34 tokens

adversarial-generator

Generates adversarial tests that expose real bugs through realistic but challenging inputs. Use when creating tests designed to find logic errors.

jimmc414/claude-code-plugin-marketplace · 30 tokens