Claude Code mod
baton
Context budget guard and handoff relay: measures real context use per model request, stops subagents that run too long or too big, and hands work over to a fresh session before the main agent drowns.
Install
/plugin marketplace add hal-9/claude-mods
/plugin install baton@claude-modsMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: drives Claude, reads mod state, persists state, draws
- Sees
- subagent spawns, mcp__baton__handoff calls
- Draws in
AbovePrompt- Hooks
session.startturn.startagent.spawnturn.stepturn.completesession.measuretool.callcommand.runui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- hal-9/claude-mods
- Folder
mods/baton- Marketplace
claude-mods- Author
- Tuncay Aydin
- License
- MIT
- Last updated
- 20 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is baton?
Context budget guard and handoff relay: measures real context use per model request, stops subagents that run too long or too big, and hands work over to a fresh session before the main agent drowns. It is a mod for Claude Code, from hal-9/claude-mods on GitHub.
What can the baton mod access?
Its widest reach is "writes or runs" (drives Claude, reads mod state, persists state, draws). It sees subagent spawns, mcp__baton__handoff calls. It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install baton?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add hal-9/claude-mods and then /plugin install baton@claude-mods.
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