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fix(subagents): raise general-purpose max_turns to 150 and default timeout to 30min (#3610)

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* fix(subagents): raise general-purpose max_turns to 150 and default timeout to 30min

Deep-research subtasks failed out of the box with GraphRecursionError (Recursion limit of 100 reached): the built-in general-purpose subagent caps at max_turns=100. Raise it to 150 and bump the default subagent timeout from 900s (15min) to 1800s (30min) so the extra turns have time to run instead of shifting the failure to a timeout. The lead agent recursion_limit (100) is unchanged; the failures are subagent-only.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* docs(subagents): clarify lead recursion_limit is independent of subagent max_turns

Add comments at both lead recursion_limit=100 sites (gateway services + channel manager) explaining the lead's LangGraph super-step budget is separate from subagent depth, so the two 100s are not conflated. Comment-only, no behavior change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* docs(subagents): clarify built-in vs custom timeout scope; pin bash max_turns in test

Review follow-ups: (1) clarify SubagentConfig docstring + global timeout field/comment that the 1800 default applies to built-in subagents (custom agents keep their own timeout_seconds); (2) pin bash.max_turns==60 in the defaults regression test so the config.example.yaml doc cannot drift; (3) rename test_default_timeout_preserved_when_no_config -> test_explicit_global_timeout_propagates_to_general_purpose since it intentionally exercises an explicit non-default 900. No runtime behavior change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
DanielWalnut
2026-06-16 19:55:04 +08:00
committed by GitHub
parent d2cc991d55
commit 05be7ea688
9 changed files with 50 additions and 16 deletions
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backend/packages/harness/deerflow/subagents/builtins/general_purpose.py
+1 -1
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@@ -57,5 +57,5 @@ You have access to the same sandbox environment as the parent agent:
tools=None, # Inherit all tools from parent
disallowed_tools=["task", "ask_clarification", "present_files"], # Prevent nesting and clarification
model="inherit",
max_turns=100,
max_turns=150,
)
backend/packages/harness/deerflow/subagents/config.py
+7 -2
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@@ -20,8 +20,13 @@ class SubagentConfig:
skills: Optional list of skill names to load. If None, inherits all enabled skills.
If an empty list, no skills are loaded.
model: Model to use - 'inherit' uses parent's model.
max_turns: Maximum number of agent turns before stopping.
timeout_seconds: Maximum execution time in seconds (default: 900 = 15 minutes).
max_turns: Maximum agent turns before stopping. Built-in agents use the
value set here (general-purpose=150, bash=60) unless the global
``subagents.max_turns`` is set.
timeout_seconds: Bare fallback execution-time cap. For built-in agents the
effective limit is the global ``subagents.timeout_seconds`` (default
1800 = 30 min), layered on by the registry; this 900 only applies
when no differing global value exists.
"""
name: str