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fix(agent): avoid tool compaction echo loops

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chengyongru 2026-07-02 14:54:27 +08:00 committed by Xubin Ren
parent 34535b4e7c
commit aecb5fbc33
2 changed files with 4 additions and 4 deletions
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2
nanobot/agent/context_governance.py
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@ -427,7 +427,7 @@ class ContextGovernor:
@staticmethod
def _summary_for(message: dict[str, Any]) -> str:
name = message.get("name", "tool")
return f"[{name} result omitted from context]"
return f"[Prior {name} result compacted to fit context; the tool call already completed.]"
def _legal_history_tail(
self,

6
tests/agent/test_runner_governance.py
View File

@ -550,7 +550,7 @@ def test_microcompact_overflow_compacts_to_low_watermark(monkeypatch):
def estimate(_provider, _model, msgs, _tools):
return sum(
100 if (content := msg.get("content")) == long_content
else 1 if isinstance(content, str) and "omitted from context" in content
else 1 if isinstance(content, str) and "compacted to fit context" in content
else 0
for msg in msgs
if msg.get("role") == "tool"
@ -564,7 +564,7 @@ def test_microcompact_overflow_compacts_to_low_watermark(monkeypatch):
set(),
)
tool_msgs = [m for m in result if m.get("role") == "tool"]
compacted = [m for m in tool_msgs if "omitted from context" in str(m.get("content", ""))]
compacted = [m for m in tool_msgs if "compacted to fit context" in str(m.get("content", ""))]
preserved = [m for m in tool_msgs if m.get("content") == long_content]
assert len(compacted) == 8
@ -609,7 +609,7 @@ def test_microcompact_compacts_newest_when_it_alone_overflows(monkeypatch):
)
tool_msg = next(m for m in result if m.get("role") == "tool")
assert "omitted from context" in tool_msg["content"]
assert "compacted to fit context" in tool_msg["content"]
assert compacted_tool_call_ids == {"c0"}