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feat: per-call model/provider override on delegate_task #3734

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HenkDz wants to merge 2 commits into from
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feat: per-call model/provider override on delegate_task #3734

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adf951c
feat: per-call model/provider override on delegate_task (#3719)
henkey Mar 29, 2026
2626b70
feat: log subagent model/provider on spawn for debuggability
henkey Mar 29, 2026
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12 changes: 11 additions & 1 deletion tools/delegate_tool.py
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Original file line number Diff line number Diff line change
Expand Up @@ -174,8 +174,10 @@ def _build_child_agent(

# When no explicit toolsets given, inherit from parent's enabled toolsets
# so disabled tools (e.g. web) don't leak to subagents.
parent_toolsets = set(getattr(parent_agent, "enabled_toolsets", None) or DEFAULT_TOOLSETS)
if toolsets:
child_toolsets = _strip_blocked_tools(toolsets)
# Intersect with parent — subagent must not gain tools the parent lacks
child_toolsets = _strip_blocked_tools([t for t in toolsets if t in parent_toolsets])
elif parent_agent and getattr(parent_agent, "enabled_toolsets", None):
child_toolsets = _strip_blocked_tools(parent_agent.enabled_toolsets)
else:
Expand Down Expand Up @@ -259,6 +261,14 @@ def _run_single_child(
"""
child_start = time.monotonic()

# Log the model/provider the subagent is running on
_child_model = getattr(child, "model", None)
_child_provider = getattr(child, "provider", None)
if _child_model:
provider_tag = f" ({_child_provider})" if _child_provider else ""
logger.info("[subagent-%d] spawning with model=%s%s", task_index, _child_model, provider_tag)
print(f" [subagent-{task_index}] model={_child_model}{provider_tag}")

# Get the progress callback from the child agent
child_progress_cb = getattr(child, 'tool_progress_callback', None)

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