Clash is an innovative open-source command-line interface (CLI) tool designed to manage and prevent merge conflicts across Git worktrees, particularly for developers who utilize multiple AI coding agents like Claude Code and Codex in parallel. It aims to streamline the development process by providing early visibility of potential conflicts, thus helping developers and coding agents navigate overlapping changes during their workflows.

Key Features

• Instant Conflict Detection: Clash identifies merge conflicts between all active worktrees, enabling developers to see conflicts as they arise.
• Conflict Visualization: Users can view a conflict matrix that clearly shows which branches have conflicts, allowing for easier management of the development process.
• Real-Time Monitoring: The tool can be set to monitor worktrees in real-time, updating on file changes to ensure developers are aware of the latest conflicts.
• AI Integration: Clash seamlessly integrates with AI agents, allowing them to adapt based on detected conflicts, ensuring smoother collaborative efforts.

Usage Examples

To check for conflicts across all worktrees, simply run:

clash status

For real-time monitoring, use:

clash watch

Clash's JSON output feature is useful for automation scripts and CI/CD pipelines, for example:

clash status --json | jq '.conflicts[] | select(.conflicting_files | length > 0)'

Application Scenarios

• For AI Agent Orchestrators: Prevent wasted compute resources by checking for conflicts before executing resource-intensive tasks.
• For Human Teams: Stay informed on teammates' changes to mitigate conflicts before merging.
• For CI/CD Pipelines: Automatically fail builds that have unresolved conflicts, ensuring cleaner merges.

How it Works

Clash operates by simulating three-way merges using the git merge-tree functionality, without making any modifications to the repository. This ensures a reliable, read-only experience while enabling developers to manage conflicts proactively.

Roadmap

Future updates aim to enhance integration with AI agents and introduce additional functionalities to improve conflict resolution capabilities.

In summary, Clash provides a robust solution for managing merge conflicts in complex development environments, especially where multiple coding agents operate simultaneously. By facilitating early detection and offering a comprehensive monitoring tool, Clash helps enhance productivity and reduces the time spent resolving conflicts.