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fix(compressor): trigger fallback on timeout errors alongside model-not-found

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Previously only HTTP 404/503 and specific error strings triggered a fallback
to the main model when the summary model was unavailable. Timeout errors
(HTTP 408/429/502/504, or error strings containing 'timeout') entered a
short cooldown instead, leaving context to grow unbounded for the rest of
the session.

Add _is_timeout detection alongside _is_model_not_found so that transient
timeout errors on the summary model also trigger immediate fallback to the
main model, preventing compression failure from cascading.

Closes #15935
This commit is contained in:
pander 2026-04-27 00:03:25 +08:00 • committed by Teknium
parent a45bd28598
commit 6b88f46c54
1 changed files with 6 additions and 2 deletions
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8
agent/context_compressor.py
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@ -906,15 +906,19 @@ The user has requested that this compaction PRIORITISE preserving all informatio
or "does not exist" in _err_str
or "no available channel" in _err_str
)
_is_timeout = (
_status in (408, 429, 502, 504)
or "timeout" in _err_str
)
if (
_is_model_not_found
(_is_model_not_found or _is_timeout)
and self.summary_model
and self.summary_model != self.model
and not getattr(self, "_summary_model_fallen_back", False)
):
self._summary_model_fallen_back = True
logging.warning(
"Summary model '%s' not available (%s). "
"Summary model '%s' unavailable (%s). "
"Falling back to main model '%s' for compression.",
self.summary_model, e, self.model,
)