Event Horizon VS Code Extension Adds File Locking and Plan Coordination for Multiple AI Agents
Event Horizon is a VS Code extension that started as a visualization tool for Claude Code but has evolved to solve a practical problem: preventing multiple AI coding agents from breaking builds by editing the same files simultaneously.
Problem and Solution
The developer encountered issues when running Claude Code in one terminal and OpenCode in another, both editing the same project. One agent would overwrite the other's work, leading to broken builds that required hours to untangle.
Key Features
- File Locking: When one agent is writing to a file, others are hard-blocked from touching it. The blocked agent sees who holds the lock and works on something else instead, ensuring zero interleaved writes.
- Plan Coordination: Create a plan where agents claim tasks atomically, preventing two agents from working on the same thing. Dependencies are enforced, and a Kanban board updates live as work progresses.
- MCP Tools: Handle all coordination under the hood. Everything auto-registers when you connect an agent, requiring no manual configuration.
- Visualization: The original visualization remains, with file collisions now sparking lightning between planets. This provides an immediate visual indicator when agents are fighting over the same files.
Technical Details
- 100% local with no telemetry - nothing leaves your machine
- Supports Claude Code and OpenCode with one-click setup
- Copilot also supported
- Cursor support coming soon
Availability
- GitHub: https://github.com/HeytalePazguato/event-horizon
- VS Code Marketplace: https://marketplace.visualstudio.com/items?itemName=HeytalePazguato.event-horizon-vscode
📖 Read the full source: r/ClaudeAI
👀 See Also
companion-capture: Tool saves Claude Code's ephemeral speech bubbles
companion-capture is an open-source tool that captures Claude Code's companion character speech bubbles before they vanish from the terminal. It saves messages to markdown files and SQLite for search, using VT100 screen buffer parsing to track cursor positions.
Vibeyard Adds Kanban Board for Managing Multiple Claude Code Sessions
An open-source IDE called Vibeyard now includes a Kanban board that lets you spin up Claude Code agent sessions directly from cards. Cards auto-move to Done when the agent finishes.
Bridge Claude Code to Chat Apps for Remote Interaction
A GitHub project called cc-connect bridges Claude Code to messaging platforms like Slack and Telegram, allowing remote interaction without exposing your local machine. The agent runs locally while a small bridge relays messages between the agent and chat apps.
ClawCodex /advisor Mode: Pair Cheap Worker with Expensive Reviewer to Cut Costs Without Losing Quality
Open-source Python coding agent ClawCodex adds an /advisor mode that pairs a cheap worker model (e.g., Haiku) with an expensive reviewer (e.g., Opus) at decision points, cutting costs several-fold without sacrificing architectural judgment.