Claude Code mod

subagent-opus

When the main loop runs on a Fable or Mythos model, start Agent-tool subagents on Opus instead of inheriting it.

Workflow mods Plugin marketplaceValidates on Claude Code 2.1.319 Source

Install

Inside Claude Code
/plugin marketplace add SipengXie2024/claude-mods
/plugin install subagent-opus@sipeng-mods

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

What it can access

Reach
L0Draws and remembers
Sees
subagent spawns
Hooks
agent.spawn

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
SipengXie2024/claude-mods
Folder
mods/subagent-opus
Marketplace
sipeng-mods
Author
sipeng
Type
Workflow mods
Last updated
6 November 2026
Listed in
awesome-claude-code-mods

FAQ

What is subagent-opus?

When the main loop runs on a Fable or Mythos model, start Agent-tool subagents on Opus instead of inheriting it. It is a mod for Claude Code, from SipengXie2024/claude-mods on GitHub.

What can the subagent-opus mod access?

Its widest reach is "draws and remembers". It sees subagent spawns. Like any mod, it runs with your permissions.

How do I install subagent-opus?

Inside Claude Code (v2.1.287 or later), run /plugin marketplace add SipengXie2024/claude-mods and then /plugin install subagent-opus@sipeng-mods.

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