runtimeConfig is intentionally not accepted; construct another
Agent for runtime fields outside this curated set.
Example
Extended by
Properties
cwd?
maxBudgetUsd?
error_max_budget result.
maxTurns?
error_max_turns result.
model?
provider/model id for this session.
outputFormat?
permission?
permissionMode.
permissionMode?
signal?
error_aborted still resolves normally.