What is session-relaunch?
session-relaunch is a Claude Code mod by lperezmo that /relaunch restarts this Claude Code session in a new terminal tab with --resume , so MCP servers added since it started are loaded. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | lperezmo |
| Repository | lperezmo/session-relaunch |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | Low risk (88/100) |
| Rank | #3,831 of 5,272 Claude Code mods; #1,600 in Interface |
| License | MIT |
| Last commit | 2026-10-16 |
| Hooks | 3 events |
| Sees | Bash|PowerShell|Write|Edit calls |
| Draws on | nothing |
Is session-relaunch safe to install?
session-relaunch scores 88/100 on the MCPMods security check: Low risk. Things to review: starts processes outside the sandbox. It passed 7 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts processes outside the sandbox | Review |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.clock.after | |
$.clock.now | |
$.command.register | |
$.command.run | drives Claude |
$.process.run | runs processes |
$.prompt.fill | writes the prompt box |
$.session.compact | drives Claude |
$.session.id | |
$.session.model | |
$.session.root | |
$.session.surfaces | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.keys | keeps its own state |
$.store.set | keeps its own state |
$.ui.ask | draws interface |
$.ui.log | draws interface |
$.ui.toast | draws interface |
How do I install session-relaunch?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/lperezmo/session-relaunch claude plugin validate ./session-relaunch/plugins/session-relaunch
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add lperezmo/session-relaunch && claude plugin install session-relaunch@session-relaunch
Or ask Claude to set it up
Paste this into Claude Code and it installs session-relaunch for you:
Install the "session-relaunch" Claude Code mod from https://github.com/lperezmo/session-relaunch/tree/main/plugins/session-relaunch. Run claude plugin validate on it first and show me what it can access before you enable it.