Claude Code mod

ext-agent

Run Claude Code subagents in pi or opencode instead of a Claude model. Adds the ext-agent:worker agent type; built-in subagents stay available unless you opt in to blocking them.

Workflow mods Plugin marketplaceValidates on Claude Code 2.1.316 Source

Install

Inside Claude Code
/plugin marketplace add darkautism/ext-agent
/plugin install ext-agent@ext-agent

Mods install like plugins. Run /reload-plugins or start a new session to load it.

What it can access

Reach
L2Writes or runs: runs processes, reads settings, reads the transcript
Sees
every tool call, compaction, Agent calls
Hooks
agent.offertool.describeturn.steptool.callsession.compact

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.
Claude Code docs

Details

Repository
darkautism/ext-agent
Folder
plugins/ext-agent
Marketplace
ext-agent
Author
darkautism
Type
Workflow mods
License
MIT
Last updated
31 October 2026
Listed in
awesome-claude-code-mods

FAQ

What is ext-agent?

Run Claude Code subagents in pi or opencode instead of a Claude model. Adds the ext-agent:worker agent type; built-in subagents stay available unless you opt in to blocking them. It is a mod for Claude Code, from darkautism/ext-agent on GitHub.

What can the ext-agent mod access?

Its widest reach is "writes or runs" (runs processes, reads settings, reads the transcript). It sees every tool call, compaction, Agent calls. Like any mod, it runs with your permissions.

How do I install ext-agent?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add darkautism/ext-agent and then /plugin install ext-agent@ext-agent.

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