Claude Share puts two people inside the same Claude Code session

Paradigm Study published Claude Share, a plugin for Claude Code that lets two or more people join the same session, see each other's prompts and Claude's streamed replies, and review the same tool results. The repository was created on 3 October and has 420 stars on GitHub.

The project calls itself "shared sessions for Claude Code". Both people need a working Claude Code installation and the plugin. The host presses Share, or types /share-session, and copies the link. A teammate pastes the link into their own Claude Code and the session appears, with the history up to that point if the host chose to include it.

What a shared session does

Guest prompts run on the host's machine, in the host's workspace. The guest's own model is not called, and the guest's local filesystem is not touched. By default, when the guest asks Claude to edit a file, run a command or use the network, the host is asked to approve. A watch-only mode is available, where guests see the session but cannot send prompts.

A /room view shows who is in the session, a timeline of turns, the files Claude has changed, and host controls. Guests can react to Claude's replies, see who has seen each turn, and mention a teammate by name in a side chat. For a running local preview, the host can expose a specific port with /share-preview <port>, which gives guests an Open in the Room button.

Everything flows through a room server. The README states this out loud. A public server is included, and a self-hosted server is documented. The project asks the host to read what the room server sees and keeps.

Where this fits beside the way teams actually pair

Teams working with Claude Code today have three options for working together on the same session. One: screen sharing a Zoom call, where the second person can only speak. Two: a shared tmux, which gives both people a terminal but no idea of what the agent is doing between tool calls. Three: a git branch per developer, with each person running their own agent against the same code, which is not pair programming at all. Claude Share replaces the first two with something that gives the second person their own view of the same session.

The repository is new, so the practical caution is in two places. The required Claude Code version is 2.1.286 or newer, which is the one that landed earlier this month. The function hooks switch mentioned in the setup script is needed on 2.1.285. The host's model subscription is the one that gets charged, including for the guest's prompts, so a team sharing one host's seat for an afternoon is still paying for one subscription. That is not a bug, but it is worth knowing before a review session starts.

The reason to publish this on the day it crossed 420 stars rather than later is that one of the three categories above was going to break first, and screen sharing has been the one most teams fall back to when the agent is doing something complicated. A tool that gives the second person a real view of the agent, including the tool results, is the piece pair programming on an agent has been missing.

Source

Paradigm-Study/claude-share, GitHub