strip_think_blocks() ran re.sub() directly on content that could be a
list of blocks (Anthropic via OpenRouter returns assistant content as
[{type:text,...},{type:thinking,...}]). A list reaching re.sub raised
'TypeError: expected string or bytes-like object, got list', which the
outer conversation loop swallowed and retried forever — the observed
infinite 'preparing terminal...' loop that re-emitted the same
assistant text every iteration.
The live-turn path normalized list content to a string, but
_interim_assistant_visible_text reads a *stored* history message whose
content was persisted as a list and passes it straight into the shared
strip_think_blocks helper. Fix at the shared choke point: coerce
list/dict content to visible text (dropping reasoning blocks, which is
the function's job) before any regex runs, so every caller is safe.
teknium1
296494db0e