Per-Agent Provider Config¶

Per-agent provider config is what lets Arc run different task agents on different models.

What You Can Override Per Agent¶

A task agent can override:

provider
model
base URL
API key

If those are not set, the agent uses the global defaults.

Dashboard Support¶

The dashboard agent creation form already supports the full provider block.

Users can set:

LLM provider
model
base URL
API key

So for task agents, editing files is optional, not required.

Example Agent Config¶

name = "writer"
role = "Turn research into polished writing"

[llm]
provider = "openai"
model = "gpt-4o"
base_url = "https://api.openai.com/v1"
api_key = "sk-..."

Example: Internal Codex-Compatible Endpoint¶

name = "coder"
role = "Implementation agent"

[llm]
provider = "codex"
model = "codex-mini-latest"
base_url = "https://internal.example.com/20250206/app/litellm"
api_key = "sk-..."

When To Override¶

Override per agent when:

one role needs a different model quality level
one role should use a cheaper or faster endpoint
one role must point at an internal gateway
one role needs different credentials

When Not To Override¶

Do not override unless you need to. Inheriting the global provider keeps setup simpler.