improvement(copilot): incremental edits

[Sg312]

Summary

Adds incremental edits to copilot functionality

Type of Change

• New feature

Testing

Manual testing

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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Name	Status	Preview	Comments	Updated (UTC)
sim	❌ Failed (Inspect)			Aug 7, 2025 0:13am

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
docs	⬜️ Skipped (Inspect)			Aug 7, 2025 0:13am

[greptile-apps]

Greptile Summary

This PR implements incremental edits functionality for the copilot system, enabling the AI agent to make targeted workflow modifications rather than wholesale replacements. The changes establish a comprehensive client-server communication pattern where workflow state flows from the frontend stores through a new client-side tool (GetUserWorkflowTool) to server-side processing tools.

The implementation introduces several key architectural changes: a new client-side tool that extracts workflow state from multiple Zustand stores (diff, workflow, registry) with proper fallback logic, enhanced server-side tools that can accept current workflow state as parameters to avoid database fetches, and an extended interrupt handler mechanism that passes structured data (fullData) alongside status messages for richer tool communication.

The diff API endpoints receive defensive programming improvements to handle optional loops and parallels properties consistently, while the workflow diff store adds state clearing functionality to prevent interference between successive edit operations. The copilot store gains auto-execution capabilities for client tools and simplified diff merge strategies that prioritize showing complete proposed changes over cumulative merges.

These changes integrate with the existing ReactFlow-based workflow editor and Zustand state management system, extending the copilot's ability to understand and modify workflow structures while maintaining backward compatibility with existing functionality.

Confidence score: 3/5

• This PR introduces complex architectural changes with potential reliability and consistency issues that require careful review
• Score reflects concerns about race conditions in auto-execution, code duplication, potential memory leaks, and untested error handling paths
• Pay close attention to stores/copilot/store.ts, lib/copilot/tools/server-tools/workflow/edit-workflow.ts, and the new client tool implementation

_{9 files reviewed, 6 comments}

_{Edit Code Review Bot Settings | Greptile}