Claude Context Sync

Name: Claude Context Sync
Author: ybin4548

by ybin4548version 0.4.1i★ –iRuns on your computer

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

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

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

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account ybin4548, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– 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

Compared with others in Otheri

More stars than 0% of the other 32505 servers in this category
Published to the registry more recently than 10% of the other 32505 servers in this category
Basic checks equal to or better than 100% of the other 32505 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 1 of 1 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 –, 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: Spec Driven Development, Remote Desktop Commander, topo^alpin

Alternatives

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

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

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by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

Install

topo^alpin

by topoalpin.app

Avalanche bulletins and mountain weather forecasts for any place in the Alps.

Runs in the cloudUpdated today

Install

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

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

topo^alpin

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`