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HandlerReview every AI change with full context before it touches your codebase

Review every AI code edit with built-in explanations and dedicated chats. Ask questions, request changes, or approve—without losing your main workflow.

Code Review
AI Agents
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More About Handler

Handler

Handler is an AI-powered coding assistant that keeps you in control of every line of code. Unlike typical AI coding tools that blindly generate changes, Handler ensures every edit comes with a clear explanation and dedicated chat for questioning—so you never ship code you don't fully understand.

Product Highlights

  • Built-in Explanations: Every code change arrives with its own reasoning and side chat for questions without disrupting your main workflow
  • Terminal Intelligence: Your agent reads terminal output directly, expanding JSON and pinpointing exact error locations without manual log pasting
  • Model Flexibility: Seamlessly switch between Codex and OpenCode models without losing conversation context
  • Visual Context: Screenshot any part of your screen and instantly share it with your agent through the command bar
  • Isolated Worktrees: Run multiple agents simultaneously in separate environments to prevent conflicts
  • Unified Interface: Clean tab-based UI for managing several agents at once in one organized window

Use Cases

  • Code Review Workflow: Review every AI-suggested change with full explanations before accepting, ensuring quality control in AI-assisted development
  • Debugging Assistance: Let the agent analyze terminal errors directly, eliminating the friction of copying and pasting logs
  • Multi-Agent Projects: Run parallel coding tasks with isolated agents that don't interfere with each other's context or work
  • Cross-Model Development: Compare outputs from different AI models on the same task without restarting conversations

Target Audience

Handler is designed for software developers, engineering teams, and technical leads who want to leverage AI coding assistance without sacrificing code quality, transparency, or control over their codebase.

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