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Agent selection holds the instructions Traycer agents follow when they create or reconfigure a child agent: which coding agent to use, which model, and how much reasoning effort. This page configures how a coding agent gets chosen. It does not manage the agents inside a Task; those live in the Agents panel. For the coordination model, see Agent-to-Agent.

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What The Guide Covers

The agent selection guide is Markdown, written for agents. Use it to say:
  • which coding agent to use for delegated work
  • which model and thinking effort to prefer
  • how to route implementation, review, and exploration work
Agents read the guide before they create or reconfigure a child agent.

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The Global Guide

Settings edits the global guide on the host selected with the host switcher at the top of the Settings sidebar; see Host Picker. On that host, the file is:
The editor has Edit and Preview tabs. It saves as you type and when you leave it; the status next to it reads Saving…, Saved, or Not saved if a save failed. Revert to default replaces the guide with a default built from the providers available on that host. It asks first, and your custom instructions are lost.

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Workspace Guides

For a specific repo, add a workspace guide at:
Write it in the repo directly; Settings edits only the global guide. Every guide that exists applies. Workspace guides come first, then the global guide, so a workspace guide refines the global one instead of replacing it. Use one when a repo needs different agent choices, models, review expectations, or implementation preferences.

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What It Doesn’t Configure

The guide applies to Traycer agents only. Subagents that a coding agent starts on its own follow that provider’s configuration and have no Traycer agent ID. For how child agents appear in the Agents tree, see Agents. For supported coding agents, see Agents & Models.