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fix(runtime): preserve interrupted turns on gateway exit

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This commit is contained in:
Xubin Ren
2026-08-24 00:58:04 +08:00
parent c7e2a474a0
commit 2cdfba38b2
8 changed files with 94 additions and 88 deletions
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nanobot/agent/loop.py
+8 -11
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@@ -1371,12 +1371,12 @@ class AgentLoop:
await self.aclose()
def preserve_inflight_turns_on_shutdown(self) -> None:
"""Keep durable checkpoints when the owning gateway is restarting.
"""Keep durable checkpoints when the owning gateway exits.
Normal cancellation intentionally materializes partial output so a
stopped gateway leaves a readable conversation. A managed restart is
different: RecoveryCoordinator needs the checkpoint intact to safely
offer the unfinished turn for explicit continuation after restart.
user-stopped turn leaves a readable conversation. Gateway lifecycle
shutdown is different: RecoveryCoordinator needs the checkpoint intact
to safely offer the unfinished turn for explicit continuation later.
"""
self._preserve_inflight_turns_on_shutdown = True
@@ -1443,13 +1443,10 @@ class AgentLoop:
session_key,
exc_info=True,
)
# Preserve partial context from the interrupted turn so
# the user does not lose tool results and assistant
# messages accumulated before /stop. The checkpoint was
# already persisted to session metadata by
# _emit_checkpoint during tool execution; materializing
# it into session history now makes it visible in the
# next conversation turn.
# An explicit turn stop materializes partial context so
# the next prompt can see completed tool results. Gateway
# shutdown keeps the durable checkpoint untouched instead,
# allowing RecoveryCoordinator to offer Continue safely.
if (
session_key in self._discarding_sessions
or self._preserve_inflight_turns_on_shutdown