Output policy - Fused

Output policy changes which model messages Harnest publishes. It does not change prompts or model responses.

Value	Behavior
`suppress`	Hide provisional SubAgent narration; the default
`include`	Publish that narration to neutral transports and the playground

from harnest.lifecycle import lifecycle
from harnest.output import OutputPolicy


@lifecycle.output_policy
def output_policy():
    return OutputPolicy(subagent_messages="include")

What remains visible

Event	`suppress`	`include`
Root-agent messages	Yes	Yes
Tool calls and results	Yes	Yes
Final answer	Yes	Yes
Intermediate SubAgent narration	No	Yes
Hidden model reasoning	No	No

Intermediate narration may be provisional and later revised. Use include only when your product deliberately presents progress.

Scope

Property	Rule
Factory	Synchronous and zero-argument
Allowed	Zero or one per root agent
Frameworks	Managed and advanced roots through neutral routes
Native routes	Framework-owned
Tests	Does not change authored fixtures