improve

An iOS code-improvement command that reviews code for quality, speed, accessibility, architecture, or newer Swift patterns.

In plain words
What is it for?
Use it to improve iOS code, refactor completion handlers to async/await, replace locks or dispatch queues with actors, or move from older data and observation patterns to newer Swift ones.
Why use it?
It helps identify and apply focused changes without requiring you to plan each refactoring by hand. Preview and safe modes let you review or limit changes first.

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/improve
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 588 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 $0.00588
Opus 5 $0.00005 $0.00294
Sonnet 5 $0.00002 $0.00118
Haiku 4.5 $0.00001 $0.00059

Measured 2d ago against content hash e709d1f991cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

improve 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/improve.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/ios:improve - iOS Code Improvement

Improve code from $ARGUMENTS for quality, performance, and maintainability.

Delegation

Route by --focus / --to via the Task tool:

  • performanceperformance-specialist
  • accessibilityswiftui-specialist
  • architecture / --to swiftdataarchitecture-specialist
  • quality / --to observable|async|actorswift-specialist

With --preview, have the specialist report proposed changes before applying.

Arguments

Flag Values Default Description
--focus performance|accessibility|architecture|quality quality Improvement focus
--to observable|swiftdata|async|actor - Refactor to modern pattern
--safe - - Apply only safe, low-risk improvements
--preview - - Show improvements without applying
--iterative - - Apply improvements in multiple passes

Refactoring Patterns (--to)

Pattern From To
--to observable ObservableObject @Observable
--to async Completion handlers async/await
--to actor NSLock/DispatchQueue actor
--to swiftdata CoreData SwiftData

Focus Areas

Focus Improvements
performance LazyVStack, image optimization, memory
accessibility VoiceOver labels, Dynamic Type, contrast
architecture Protocol abstractions, DI, separation
quality Naming, SOLID, error handling

Examples

# Quality improvements
/ios:improve Views/ --focus quality --safe --preview

# Performance optimization
/ios:improve ProductListView.swift --focus performance --iterative

# Refactoring
/ios:improve ViewModel.swift --to observable
/ios:improve DataService.swift --to async
/ios:improve Cache.swift --to actor

Output

# Improvements: [Target]
## Summary: Files analyzed | Issues found | Applied | Risk level
## Changes Made: File | Issue | Solution | Impact
## Performance Impact: Before → After metrics
## Next Steps: Tests, profiling, verification

Read the full file on GitHub · 73 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 · 73 lines · 11 tokens per session scan A e709d1f991cf

Subscribe to this mod's changes

improve 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 588 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.