implement

A command for building iOS features from a written description, using SwiftUI, UIKit, or both. It can apply selected architecture, data-storage, cloud-sync, testing, and accessibility options.

In plain words
What is it for?
Use it to implement iOS views and navigation, view models, SwiftData models, dependency setup, concurrency, networking, CloudKit synchronization, XCTest tests, and accessibility support.
Why use it?
It coordinates separate specialists for app structure, screens, Swift code, tests, and accessibility, reducing the need to organize those tasks manually.

Command

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.

agentmods
npx agentmods add commands/carolanelfbv/ios-development-agents/implement
Clone the repo
git clone --depth 1 https://github.com/CarolaneLFBV/ios-development-agents
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 578 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00011 $0.00578
Opus 5 $0.00005 $0.00289
Sonnet 5 $0.00002 $0.00116
Haiku 4.5 $0.00001 $0.00058

Measured 2d ago against content hash 9fc349950aa5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

implement 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 2d 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.

commands/implement.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/ios:implement - iOS Feature Implementation

Implement iOS features using $ARGUMENTS as the feature description.

Delegation

Coordinate specialists via the Task tool (each queries context7 before writing):

  1. architecture-specialist → structure, @Observable ViewModels, SwiftData models, DI
  2. swiftui-specialist → views, navigation, state
  3. swift-specialist → concurrency, generics, networking
  4. testing-specialist → if --with-tests
  5. swiftui-specialist → accessibility pass if --accessibility

Run independent specialists in parallel; sequence steps that depend on prior output.

Arguments

Flag Values Default Description
--framework swiftui|uikit|hybrid swiftui UI framework
--pattern mvvm|tca|clean mvvm Architecture pattern
--swiftdata - - Include SwiftData integration
--cloudkit - - Enable CloudKit synchronization
--with-tests - - Generate XCTest unit tests
--accessibility - - Comprehensive accessibility support

Workflow

1. requirements:
   - Parse feature description
   - Detect technology context
   - Assess complexity

2. context7:
   - Query Apple patterns
   - Get framework best practices

3. implementation:
   - Generate SwiftUI views or UIKit
   - Implement @Observable ViewModels
   - Create SwiftData models if needed
   - Apply architectural pattern

4. validation:
   - Generate XCTests if requested
   - Check accessibility compliance
   - Verify iOS version compatibility

Examples

# SwiftUI + MVVM
/ios:implement UserProfileView --framework swiftui --pattern mvvm

# SwiftData Feature
/ios:implement TaskManager --swiftdata --pattern mvvm --with-tests

# Full-featured
/ios:implement UserAuth --pattern tca --accessibility --with-tests

Output

# Implementation: [Feature]
## Summary: Framework | Pattern | iOS Version | Complexity
## Files Created: Views, ViewModels, Models, Tests
## Accessibility: VoiceOver ✅ | Dynamic Type ✅
## Next Steps: Integration, testing, verification

Read the full file on GitHub · 79 lines

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. 2d ago First seen · 79 lines · 11 tokens per session scan A 9fc349950aa5

Subscribe to this mod's changes

implement is a command published in the GitHub repository CarolaneLFBV/ios-development-agents (7 stars, last pushed 1mo ago), licensed MIT. It adds 11 tokens to every session and 578 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 2026-08-31.