v0.1.41

🚀 Release Highlights — v0.1.41 (2026-01-21)

⚡ Async Subagent Execution

• Non-Blocking Spawning: New async_=True parameter on spawn_subagents runs subagents in background while parent continues working
• Result Polling: Parent agent polls for subagent completion and retrieves results when ready, with configurable injection strategy
  (tool_result or user_message)

⏱️ Subagent Round Timeouts

• Per-Round Timeout Control: New subagent_round_timeouts config for initial_round_timeout_seconds, subsequent_round_timeout_seconds, round_timeout_grace_seconds; inherits from parent if omitted

⚙️ Extended Subagent Configuration

• New YAML Parameters: subagent_default_timeout, subagent_min_timeout, subagent_max_timeout, subagent_max_concurrent for fine-grained control

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📖 Getting Started

• Quick Start Guide: Try the new features today
• Try These Examples:
  • async_subagent_example.yaml - Async subagent execution with automatic result injection

# Async subagent execution - parent continues while subagent works in background
uv run massgen --display textual --config massgen/configs/features/async_subagent_example.yaml \
 "Use one subagent to research the band Geese in the background while you create a creative website about them, including similar bands."

What's Changed

• feat: Async subagents by @ncrispino in #801
• docs: docs for v0.1.41 by @Henry-811 in #803
• feat: v0.1.41 by @Henry-811 in #802

Full Changelog: v0.1.40...v0.1.41