* fix(agents): strip external-content nonce before loop-detection resultHash
External-content wrappers carry a fresh anti-forgery nonce per result
(createExternalContentMarkerId). The loop detector hashed the wrapper text
including the nonce, so identical failing wrapped tool calls never reached
the no-progress block threshold — the detector warned but never blocked,
leaving the agent to loop until it gave up (#130210).
Strip the wrapper nonce before hashing in extractTextContent, mirroring
the existing stripVolatileSendIds treatment of per-call send ids (#89090).
Only the hash is normalized; the delivered wrapper keeps its nonce, so
anti-forgery is unaffected.
Closes#130210
Co-Authored-By: Claude <noreply@anthropic.com>
* test(agents): validate protected error marker capture
Narrow the generated marker capture before recording it so the real network-error loop regression also passes its owning test-type graph.
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Co-authored-by: ruel225 <ruel225@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>
ruel225
cd321938f6