1.18.12 (2026-11-09)
Bugs Fixed
_ToolCallSuccessEvaluatorsends a list of text messages to the judge model, rather than reporting it as not applicable, when its text looks like a tool transcript. Such text containstool_call,tool_result,tool_response,function_callorfunction_resultin any letter case, as tags such as<tool_call>,[TOOL_CALLS]and this evaluator's[TOOL_RESULT]do, Llama's<|python_tag|>or<function=tags or the gpt-oss<|call|>token, or has a line that starts with a label such asAction:,Observation:,Tool call:orTool result:, as ReAct agents write, also after a bullet or a list marker such as1),(2)ora). In 1.18.11 only text with[TOOL_CALL]or[TOOL_RESULT]was sent. Such a list is sent as its text, with each message's role and every tool definition, as a string is, because a Decision model can miss ReAct steps inside a list of messages. The text of a message that holds an MCP approval request is not counted, because it is left out of every judge input. Pass a transcript in any other text format as a string for the judge model to assess it.- A Decision evaluator that the judge model rates as not applicable gives a readable reason, for example
Not applicable: the judge model's applicability probability 0.2000 is below the 0.5000 cutoff, so the evaluator was skipped. No model rationale is available.It used to readStatus completion probability 0.2000 is below 0.5000; evaluation skipped., which named an internal question. TaskAdherenceEvaluatorwith a Decision model reports a threshold of 1 when none is requested, the only score at which its binary result passes, as_TaskCompletionEvaluatordoes. It reported 0. A requested threshold is still reported as given and still does not decide whether a binary result passes. The evaluator'sthresholdattribute now also defaults to 1 for chat models; chat results are unchanged.- A Decision reason names a question by the part of its key after the last
/, so a namespaced key such asgrade/confirm_details, which the hosted evaluation service uses for rubric dimensions, readsConfirm details probability 0.1645 is below the 0.7500 cutoff.It used to readGrade/confirm details probability .... - A prompt template that fails to parse or render raises
JinjaTemplateError, a subclass ofPromptyExceptionclassified as a user error, instead of a genericPromptyException. Code that catchesPromptyExceptionstill catches it. A template blocked by the sandbox still raisesPromptyException.