vsync

Your AI tools share memory now.

You told Claude Code about your auth architecture. Now you open Cursor. It has no idea. You re-explain. Again.

vsync fixes this. One command. Your AI tools share context automatically.

npx @verifiedstate/sync start

The problem

Every AI coding tool keeps its own memory:

• Claude Code reads CLAUDE.md
• Cursor reads .cursorrules
• ChatGPT, Obsidian, Slack, Notion — all siloed

You make a decision in one tool. The others don't know. You lose 10-15 minutes per session re-explaining context. Worse, tools make contradictory decisions because they don't share state.

What vsync does

Syncs your AI tool configs bidirectionally. Change CLAUDE.md, and .cursorrules updates automatically. And vice versa.

CLAUDE.md Section	.cursorrules Section	Direction
## Build Rules	## Rules	↔ Bidirectional
## Stack	## Tech Stack	↔ Bidirectional
## Core rules	## Constraints	↔ Bidirectional
## API endpoints	## API endpoints	↔ Bidirectional
## Session protocol	—	Skipped (Claude Code only)
—	## Cursor Settings	Skipped (Cursor only)

Tool-specific sections are preserved. Shared sections sync. Nothing gets overwritten that shouldn't be.

How it works

• Watches your project directory for changes to CLAUDE.md and .cursorrules
• Syncs matching sections when either file changes
• Hash-based loop prevention — no infinite sync cycles
• Atomic writes — temp file + rename, never corrupts your config
• 2-second debounce — waits for you to finish typing
• Auto-backup — creates .cursorrules.backup / CLAUDE.md.backup before overwriting

Commands

vsync start                 # run in background
vsync start --foreground    # run in terminal (see sync events live)
vsync stop                  # stop the daemon
vsync status                # show sync count and last activity

Part of something bigger

vsync syncs two files locally. That's the start.

VerifiedState connects 8 tools — Cursor, Claude Code, GitHub, Notion, Slack, Google Drive, Linear, Obsidian — into one shared memory. Every tool talks to every tool. 8 tools, 28 connections, one memory.

vsync is the local-first entry point. VerifiedState is the full mesh.

License

MIT

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by VerifiedState