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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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config.example.yaml
+7 -5
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@@ -892,16 +892,18 @@ sandbox:
# Subagents are background workers delegated tasks by the lead agent
# subagents:
# # Default timeout in seconds for all subagents (default: 900 = 15 minutes)
# timeout_seconds: 900
# # Optional global max-turn override for all subagents
# # Default timeout (seconds) for built-in subagents (default: 1800 = 30 min).
# # Custom agents use their own timeout_seconds (default 900) unless overridden.
# timeout_seconds: 1800
# # Optional global max-turn override for all subagents.
# # Built-in defaults: general-purpose=150, bash=60. Leave unset to keep them.
# # max_turns: 120
#
# # Optional per-agent overrides (applies to both built-in and custom agents)
# agents:
# general-purpose:
# timeout_seconds: 1800 # 30 minutes for complex multi-step tasks
# max_turns: 160
# timeout_seconds: 2700 # 45 minutes for very long deep-research tasks
# max_turns: 250 # raise above the 150 default for very deep tasks
# # model: qwen3:32b # Use a specific model (default: inherit from lead agent)
# # skills: # Skill whitelist (default: inherit all enabled skills)
# # - web-search