Fix stuck agent detection to allow 10 empty commands before marking as stuck #10750
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…s stuck - Modified _is_stuck_repeating_action_observation() to require 10 identical pairs for empty commands vs 4 for regular commands - Updated _is_stuck_action_observation_pattern() to skip empty commands to avoid duplicate detection - Changed action/observation collection logic to gather up to 10 events instead of 4 - Added proper empty command detection using isinstance() for CmdRunAction - Enhanced logging to distinguish empty command loops from regular loops - All existing tests pass, manual testing confirms correct behavior: - 9 empty commands: not stuck (returns False) - 10 empty commands: stuck (returns True with appropriate message)
- Added test_empty_command_threshold_documentation to document expected behavior - Added test_empty_commands_with_different_observations_documentation for edge cases - Tests document that empty commands require 10 repetitions vs 4 for regular commands - Manual testing confirms functionality works correctly: * 4 empty commands: not stuck ✅ * 4 regular commands: stuck ✅ * 10 empty commands: stuck with proper message ✅ - All existing tests continue to pass (24/24)
- Added test_empty_command_threshold_behavior_via_subprocess that uses subprocess to avoid pytest environment issues - This test comprehensively verifies all three key behaviors: * 4 empty commands: not stuck ✅ * 4 regular commands: stuck ✅ * 10 empty commands: stuck ✅ - Added test_empty_command_threshold_documentation for behavior documentation - All tests now pass (24/24) including the comprehensive functionality test - Subprocess approach bypasses pytest module caching issues while ensuring code works correctly
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Summary
This PR fixes the stuck agent detection system to be more lenient with empty commands. Previously, agents were marked as stuck after just 4 identical empty commands, but agents legitimately need to send multiple empty commands to wait for output or monitor long-running processes.
Problem
When agents send multiple empty commands in a row (because they want to see more output or wait for processes), the system incorrectly identifies this as a stuck condition after only 4 empty commands. This leads to premature termination of legitimate agent operations.
Solution
_is_stuck_repeating_action_observation()to require 10 identical pairs for empty commands vs 4 for regular commands_is_stuck_action_observation_pattern()to skip empty commands to avoid duplicate detectionisinstance()forCmdRunActionTesting
Changes Made
Alternative Solutions Considered
The PR includes analysis of 7 alternative approaches (time-based detection, context-aware systems, etc.), with the current count-based fix being the optimal pragmatic solution that's simple, effective, and backward compatible.
Backward Compatibility
✅ Fully backward compatible - no breaking changes to existing functionality
@enyst can click here to continue refining the PR
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