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Detects four loop patterns (error_retry / repeat / repeat_by_output / cycle) during ReAct tool execution and reacts via a configurable mode: - disabled (default): no behaviour change - warn: inject a system hint into react_memory and keep going - block / fallback: stop the ReAct loop and return loop_fallback_message New files: - oxygent/utils/loop_detector.py core detection + prompt builder - oxygent/utils/loop_signatures.py tool-level signature registry - tests/unittest/test_loop_detector.py 16 unit tests - examples/agents/demo_loop_detection.py end-to-end demo Modified: - oxygent/oxy/agents/react_agent.py +47 lines (2 Fields + detection hook) SkillAgent inherits from ReActAgent so it gets the feature for free. Default mode is disabled; existing users see no behaviour change. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Add docs/loop_detection_feature.md (12-section feature spec covering problem statement, architecture, four detection patterns, three handling modes, two-layer signature mechanism, usage examples, design trade-offs and FAQ) - Add docs/loop_detection_test_report.md (comprehensive test report: 16 unit tests, 3-mode e2e smoke, Web UI real-request verification, 45-test targeted regression, 346-test full regression, performance comparison, risk analysis) - Remove 'fallback' mode (semantic duplicate of 'block'); loop_detection_mode now accepts only 'disabled' | 'warn' | 'block' - Tighten demo prompt so the LLM reliably triggers the search tool Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Summary
error_retry/repeat/repeat_by_output/cycledisabled（默认，不改变现有行为）/warn（注入系统提示并继续）/block（终止 ReAct 循环并返回兜底消息）oxygent/utils/loop_detector.py、oxygent/utils/loop_signatures.py；react_agent.py仅 +46 行（2 个字段 + 检测钩子）docs/loop_detection_feature.md、docs/loop_detection_test_report.md与端到端 demoexamples/agents/demo_loop_detection.pyTest plan
tests/unittest/test_loop_detector.py16 条用例全部通过disabled，现有用户零感知🤖 Generated with Claude Code