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fix(examples-js): validate LangChain, LlamaIndex, and Mastra OTel 2.x spans - #54

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Nightingalelyy:fix/otel2-js-langchain-llama-mastra-examples
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fix(examples-js): validate LangChain, LlamaIndex, and Mastra OTel 2.x spans#54
Nightingalelyy wants to merge 1 commit into
respanai:mainfrom
Nightingalelyy:fix/otel2-js-langchain-llama-mastra-examples

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Summary

  • make the LangChain examples portable and restore modern agent/workflow grouping coverage
  • add deterministic LlamaIndex success, tool, RAG, and failure validation
  • add deterministic Mastra agent, tool, stream, and expected-failure validation

Companion example changes for Respan fix Group 2 and respan#367.

Validation

  • all 40 corresponding examples passed against the locally linked Respan packages
  • exact marker otel2-fix-js-group-02-20260815T075000Z
  • Respan MCP audit completed for 42 traces and 124 full records with no duplicate or orphan spans

@Nightingalelyy Nightingalelyy changed the title fix(examples): repair LangChain, LlamaIndex, and Mastra tracing fix(examples-js): validate LangChain, LlamaIndex, and Mastra OTel 2.x spans Aug 18, 2026
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Nightingalelyy marked this pull request as ready for review August 19, 2026 16:00
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