(WIP) Feat/mappers cloudwatch change openinference

[poshinchen]

Description

constants.py

As discussed in the previous PR, moved the internal variables into constants.py

CloudWatchProvider

• Added end_time parameter to narrow the query time window (defaults to now()).

OpenInferenceSessionMapper: Multi-Agent LangGraph Fixes

• Fixed user content extraction
  • iterates llm.input_messages by role instead of blindly grabbing index 0 (which was the system prompt, not the user message).
• Fixed tool parameter parsing
  • uses ast.literal_eval as fallback for Python repr strings (OpenInference stores input.value with single quotes).
• Fixed missing AgentInvocationSpan
  • backward search now skips empty AI messages in LangGraph output.
• Simplified agent invocation detection to CHAIN + name=LangGraph only, removed false-positive-prone AGENT + langgraph_step heuristic.
• Added multi-agent dedup — when multiple LangGraph CHAIN spans exist (nested sub-graphs), keeps only the root (last one).
• Added ADOT/CloudWatch support
  • detects root LangGraph node via "messages" without "remaining_steps" in input body (intermediate nodes always have remaining_steps).
• Filters empty-response InferenceSpans
  • drops LangGraph internal re-invocations where the assistant returns only empty text with no tool calls.

LangChainOtelSessionMapper: ADOT Fixes

• moved the internal variables into constants.py

What tests have been executed

• (in_memory and ADOT) Verified with real OpenInference multi-agent with tools, single-turn LangGraph traces
• (in_memory and ADOT) Verified with real OpenInference multi-agent with tools, multi-turn traces
  Both in-memory and CloudWatch paths produce valid sessions with correct user prompts, tool calls, and agent responses.
  The evaluators return with valid scores and reasoning.

Related Issues

#91

Documentation PR

N/A, TBD

Type of Change

Bug fix
New feature

Testing

How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli

• I ran hatch run prepare

Checklist

• I have read the CONTRIBUTING document
• I have added any necessary tests that prove my fix is effective or my feature works
• I have updated the documentation accordingly
• I have added an appropriate example to the documentation to outline the feature, or no new docs are needed
• My changes generate no new warnings
• Any dependent changes have been merged and published

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