Claude Pin Message

A Claude Code mod that pins a response beside the conversation, so the plan, the command or the answer you keep scrolling back to stays on screen while the session goes on.

 ❯ what's the rollout plan?                │ ✕ unpin
 ● 1. Ship behind a flag                   │ 1. Ship behind a flag
   2. Canary at 5%                         │ 2. Canary at 5%
   3. Full rollout Thursday                │ 3. Full rollout Thursday
 ❯ /pin                                    │
 ❯ ok, start with step 1                   │ ✕ unpin
 ● Adding the flag...                      │ npm run deploy -- --canary
   (the conversation keeps scrolling)      │

Install

Inside Claude Code, run:

/plugin marketplace add GruperTal/claude-pin-message
/plugin install pin-message@claude-pin-message
/reload-plugins

Use

| You do | What happens | | --- | --- | | Select text with the mouse, then /pin | The selection is pinned | | /pin with nothing selected | Claude's last response is pinned, drawn as markdown | | Press ✕ unpin above a pin | That pin is removed | | /unpin | Every pin is removed and the pane closes |

Pin as many things as you like; they stack in one "Pinned" pane. Close the pane and your pins are kept: the next /pin brings it back.

Good to know

• Selections need the fullscreen layout. Claude Code only reports a mouse selection there. Elsewhere /pin pins the last response, and the pane sits above the prompt instead of beside the transcript.
• Pins last for the session. A new session starts with none.
• A pin holds up to 10,000 characters. A longer one is cut.

How it works

It is a mod: one hooks module, about 90 lines, in hooks/register.tsx. /pin reads the selection and the session's messages, keeps the text in session state, and opens a pane that draws the pins.

It is local-only: no network requests, no files written, no model calls. Run claude plugin validate on the repo to see every event it hooks and every call it makes.

Requirements

Claude Code with mods support. Built and tested on v2.1.289.

Development

claude --plugin-dir .      # run it from a checkout
claude plugin validate .
claude plugin test .

License

MIT