Small local models emit tool calls into message content but truncate them
(unterminated arguments string, missing closing braces), so strict decode
fails and the blob is treated as a failing artifact, exhausting the stage's
retry budget. Add a lenient fallback that recovers the function name and the
first brace-balanced arguments object, gated on a tool-call marker so genuine
artifact JSON is never misread as a call.
kami
0652d87aca