Unverified50% confidenceSolutionExact time
Fault injection is the artificial creation of boundary conditions during replay (such as tool timeouts, returning incorrectly formatted data, or tools being unavailable), allowing the Harness's error recovery logic to be tested without a real environment.
1
Sources
50%
Confidence
Long-term
Relevance
11/3/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedFailure modes describe the reproducible ways a tool fails under specific inputs.77% similarVerifiedTool error messages should be returned to the model as ordinary tool results, containing a plain-language explanation of the problem and what to do, and 'Do not retry' can stop the model from repeatedly retrying hopeless calls.76% similarUnverifiedWhen a tool returns an error or empty output, it should be rejected immediately rather than passing on incomplete data — this is a fail-fast handling approach76% similarUnverified格式问题往往可以通过后处理、约束解码或重试机制来缓解，而语义错误才是难以修复的根本缺陷75% similarUnverifiedPartially recoverable errors (such as a tool call failure where an alternative exists) should trigger a fallback path.75% similar
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