Run 4 AI Coding Agents Simultaneously: The Complete Guide

Why settle for one AI coding agent when you can run four? With Remocode's 2x2 workspace layout, you can have Claude Code, Codex, Gemini CLI, and Aider all working on the same project simultaneously. This guide walks you through the complete setup, task delegation, and coordination strategies.

The 2x2 Workspace Layout

Remocode has a built-in shortcut for a four-pane grid: press Cmd+Shift+W. This instantly creates a 2x2 layout — four equal terminal panes arranged in a grid. Each pane is a full terminal with its own shell session.

The Layout

┌──────────────┬──────────────┐
│  Claude Code │    Codex     │
│  (top-left)  │  (top-right) │
├──────────────┼──────────────┤
│  Gemini CLI  │    Aider     │
│ (bottom-left)│(bottom-right)│
└──────────────┴──────────────┘

You can also build this manually: press Cmd+D to split right, click the left pane, press Cmd+Shift+D to split down, click the right pane, press Cmd+Shift+D to split down again. But Cmd+Shift+W does it in one keystroke.

Assigning Roles to Each Agent

Four agents working without coordination is chaos. Four agents with clear roles is a production line. Here is a role assignment that works well for feature development:

Claude Code — The Architect

Assign Claude Code to handle architecture, design decisions, and complex logic. Claude's reasoning ability makes it the best choice for tasks that require understanding the big picture.

• ●Design the feature architecture and data flow.
• ●Write complex business logic and algorithms.
• ●Review changes from other agents.

Codex — The Builder

Codex is fast at generating implementation code from clear specifications. Use it as the primary code generator.

• ●Implement API routes and controllers based on Claude's architecture.
• ●Generate database migrations and seed files.
• ●Build utility functions and helpers.

Gemini CLI — The Documenter and Scaffolder

Gemini handles large context windows and excels at repetitive generation tasks.

• ●Generate TypeScript interfaces and type definitions.
• ●Write comprehensive API documentation.
• ●Scaffold test file structures and boilerplate.

Aider — The Surgeon

Aider makes precise, git-tracked edits. Use it for targeted modifications and fixes.

• ●Fix bugs identified by Claude during review.
• ●Make targeted refactors — rename variables, update imports, adjust configs.
• ●Handle the small follow-up changes that come after the main implementation.

Coordination Strategy

Phase 1: Planning (First 5 Minutes)

Start with Claude Code only. Describe the feature you want to build and let Claude create an implementation plan. This plan becomes the spec sheet for the other three agents.

Phase 2: Parallel Execution (The Main Work)

Once you have the plan, distribute tasks to all four agents:

• ●Feed Claude's architecture spec to Codex and ask it to implement the core modules.
• ●Give Gemini the data models from Claude's plan and ask it to generate interfaces, types, and documentation.
• ●Ask Aider to update existing configuration files, environment variables, and routing tables.
• ●Keep Claude working on the hardest part — the core business logic or algorithm.

Phase 3: Integration and Review (Final Pass)

Once all agents finish their tasks, use Claude to review the complete changeset. Ask it to check for inconsistencies, missing error handling, and integration issues. Use Aider to make the small fixes Claude identifies.

Managing File Ownership

With four agents, file conflicts become a real concern. Use a strict ownership model:

| Agent | Owns | |-------|------| | Claude Code | /src/core/, /src/lib/ | | Codex | /src/routes/, /src/controllers/ | | Gemini | /src/types/, /docs/ | | Aider | /config/, /src/index.ts, existing files |

State the ownership explicitly in your prompt to each agent: "You are responsible for files in /src/routes/. Do not modify files outside this directory."

Performance Considerations

Running four AI agents simultaneously does consume API quotas faster. Make sure your API plans support the throughput. Remocode itself handles unlimited panes efficiently — the bottleneck is always the API provider, not the terminal.

Start With Cmd+Shift+W

Remocode is available for macOS, and the first 1,000 users get one year of Pro free. That includes unlimited split panes, the 2x2 workspace shortcut, and standup reports for monitoring all four agents. Download it and press Cmd+Shift+W to get started.