The lazy provider wrapper ignored model.compat.streamIdleTimeoutMs, so
Bedrock reasoning models sat on the generic 300s idle watchdog despite
ConverseStream sending no ping keepalives; long quiet thinking runs died
with "Provider stream stalled while waiting for the next event" during
plan writing and todo execution (issue #4758's Bedrock variant, worst on
Fable 5 where the display default flipped to omitted).
- catalog: BedrockCompat gains streamIdleTimeoutMs; reasoning models get
a 600s floor, adaptive-thinking Claude (Opus 4.7+, Sonnet/Opus 5,
Fable/Mythos 5) 900s to match direct Anthropic's ping-extended
tolerance; explicit compat overrides still win (0 disables).
- ai: forwardStream resolves options -> env -> model.compat -> default,
and lazy terminal errors carry the structural errorId classification
so session auto-retry classifies stalls without text matching.
Voon Foo
2f24d4457e