# HTTP: agent-defaults

Arc agent documentation

All 2 agent-defaults endpoints, with request fields and access notes.

[HTTP directory](/arc/docs/reference/http) · [Transport guide](/arc/docs/guides/http)

Request fields and access notes below are partial. Additional constraints and permissions may apply. Prefer the corresponding MCP tool and schema where available.

## GET /v1/agent-defaults

Get agent defaults.

This directory does not provide a request schema for this endpoint. Use the corresponding supported tool or client where available.

## PATCH /v1/agent-defaults

Patch agent defaults.

Access: LAN writes require an active session token. Local loopback requests are exempt from this requirement by default; other permissions still apply.

This directory does not provide a request schema for this endpoint. Use the corresponding supported tool or client where available.