Claude Context Sync

Name: Claude Context Sync
Author: ybin4548

by ybin4548version 0.4.1i★ 0iRuns on your computer

Registry nameio.github.ybin4548/claude-context-sync

How to install

What it does

Share context, detect conflicts, and message across parallel Claude Code sessions

Connects Runs on your computer
Account or key No key needed
Category Developer tools

Install

Pick the AI app you use, then copy the settings.

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "claude-context-sync": {
      "command": "npx",
      "args": [
        "-y",
        "claude-context-sync"
      ]
    }
  }
}

Done

Quit Claude and open it again
Done
Try it
Use Claude Context Sync and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Claude Context Sync or shows a Claude Context Sync tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Claude Context Sync yet

Claude Context Sync runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Claude Context Sync

Steps for Claude →Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →Install Node.js on your computer first (one time)
Steps for Cursor →Install Node.js on your computer first (one time)
Steps for VS Code →Install Node.js on your computer first (one time)

B · Others in Developer tools that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Sentry✓ ChatGPT
Compiler Explorer✓ ChatGPT
GitDiagram✓ ChatGPT

Works with Claude Code, with some setup first

Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --scope user claude-context-sync -- npx -y claude-context-sync

Done

Type /mcp in Claude Code
You should see Claude Context Sync listed as connected
Done
Try it
Use Claude Context Sync and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Claude Context Sync or shows a Claude Context Sync tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Claude Context Sync and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Claude Context Sync or shows a Claude Context Sync tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Claude Context Sync and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Claude Context Sync or shows a Claude Context Sync tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Claude Context Sync💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user claude-context-sync -- npx -y claude-context-sync

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "claude-context-sync": {
      "command": "npx",
      "args": [
        "-y",
        "claude-context-sync"
      ]
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "claude-context-sync": {
      "command": "npx",
      "args": [
        "-y",
        "claude-context-sync"
      ]
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "claude-context-sync": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "claude-context-sync"
      ]
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 0
Downloads per weeki: 118/wk
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.4.1
Categoryi: Developer tools
Published to registryi: May 21, 2026
Code last changedi: May 21, 2026
Maker: ybin4548
Packages: npm: claude-context-sync
Repo: ybin4548/claude-context-sync
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account ybin4548, which owns the repo
✓ Pass
Still maintained
Code last changed 6 months ago
✓ Pass
Has a licence
Uses MIT
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Developer toolsi

More stars than 0% of the other 5852 servers in this category
Published to the registry more recently than 13% of the other 5852 servers in this category
Basic checks equal to or better than 100% of the other 5852 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Claude Context Sync safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 6 months ago, and the latest version (0.4.1) reached the registry 6 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: REA, GitHub, Serena MCP: the IDE for your agent

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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by morlutoWidely used↓ 388.7K/wk★ 455.4KUpdated yesterday

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GitHub

GitHub’s official server lets AI read and manage code, issues and pull requests in your account. Use GitHub’s hosted version or run it locally with Docker.

by githubWidely used★ 34.4KUpdated 10 days ago

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Runs on your computer

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

claude-context-sync

MCP server that automatically summarizes and shares context across parallel Claude Code sessions.

When you run multiple Claude Code sessions on different tasks, each session is unaware of what the others are doing. claude-context-sync watches your session logs, generates structured summaries on demand, and provides real-time file conflict detection and cross-session messaging.

Features

Session context sharing — any session can see what others are working on
File conflict detection — real-time alerts when multiple sessions edit the same file
Symbol-level conflicts — detects shared function/class/interface edits (TypeScript, Python, Swift, Go, Rust)
Cross-session messaging — send messages between sessions without switching terminals
Lazy evaluation — zero cost when tools aren't called
Auto-cleanup — tracked data is removed when sessions end

Installation

npm install -g claude-context-sync

context-sync init

That's it. The next time you open Claude Code, the MCP server starts automatically. The init command also registers a conflict detection hook.

MCP Tools

`list_sessions`

Returns active Claude Code sessions with their current status, task summary, and any file conflicts.

`get_session_context`

Returns the full structured summary for a specific session. Automatically re-summarizes if stale. Includes conflict information.

Parameters: sessionId (string)

`get_all_changes`

Returns changed files and decisions across all sessions, with optional project filtering.

Parameters: project (string, optional)

`send_message`

Sends a message to another session. Omit targetSessionId to broadcast to all sessions in the same project.

Parameters: fromSessionId (string), message (string), project (string), targetSessionId (string, optional)

`get_messages`

Returns message history for a session.

Parameters: sessionId (string), unreadOnly (boolean, optional)

`resolve_conflicts`

Clears resolved files from the conflict tracking list.

Parameters: sessionId (string), files (string[])

How It Works

Context Sharing

[Always running] Watcher: detects .jsonl changes → sets stale flag (zero cost)

↓ [On tool call] MCP Tool invoked → summarizes only stale sessions ↓ Extractor → Generator (claude -p) → Store → Response

Conflict Detection

[Always running] Watcher: detects .jsonl changes

↓ FileTracker: parses Write/Edit tool_use events ↓ SymbolResolver: identifies enclosing function/class/type ↓ Writes per-session touched files

[Every message] Hook (UserPromptSubmit): checks for new conflicts ↓ Alerts Claude once per new conflict → Claude notifies user

Messaging

Session A: send_message → writes to ~/.claude/context-sync/messages/{targetId}/

↓ Session B: Hook detects unread message → injects into AI context ↓ Claude reads and relays to user → marks as read

Architecture

Single MCP server process — no separate daemon. Claude Code launches it automatically via stdio transport.

src/

├── mcp/server.ts # MCP server + 6 tools ├── watcher/ │ ├── watcher.ts # File watching (chokidar) │ ├── scheduler.ts # Hybrid summarization strategy │ ├── file-tracker.ts # Real-time file edit tracking │ └── symbol-resolver.ts # Pattern-based symbol detection ├── summarizer/ │ ├── extractor.ts # .jsonl parsing + stratified sampling │ └── generator.ts # claude -p invocation ├── messaging/ │ └── messenger.ts # Cross-session message passing ├── store/store.ts # Local summary cache ├── cli.ts # CLI (init + serve + hook registration) └── types.ts # Shared types

Summarization Strategy

Incremental: updates existing summary with new messages (default)
Full: regenerates from scratch (after 4 incremental updates)
Stratified sampling: for large sessions (500+ messages), samples head + middle + tail
Cached: returns stored summary if nothing changed (zero cost)

Supported Languages (Symbol Detection)

Language	Detected Symbols
TypeScript/JavaScript	function, class, interface, type, enum, const
Python	def, class
Swift	func, class, struct, protocol, enum, extension
Go	func, type (struct/interface)
Rust	fn, struct, enum, trait, impl

Unsupported file types fall back to file-level conflict detection.

Requirements

Node.js 20+
Claude Code CLI (claude command available)
jq (for conflict detection hook)

Feedback

We'd love to hear from you! If you have feature requests, bug reports, or just want to share how you use claude-context-sync:

GitHub Discussions — ideas, questions, show & tell
GitHub Issues — bug reports, feature requests

Development

git clone https://github.com/ybin4548/claude-context-sync.git

cd claude-context-sync npm install npm run build npm test

License

MIT

Claude Context Sync

What it does

Install

Install Node.js

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Developer toolsi

Common questions

Others in the same category

REA

GitHub

Serena MCP: the IDE for your agent

README from the maker

claude-context-sync

Features

Installation

MCP Tools

list_sessions

get_session_context

get_all_changes

send_message

get_messages

resolve_conflicts

How It Works

Context Sharing

Conflict Detection

Messaging

Architecture

Summarization Strategy

Supported Languages (Symbol Detection)

Requirements

Feedback

Development

License

`list_sessions`

`get_session_context`

`get_all_changes`

`send_message`

`get_messages`

`resolve_conflicts`