e2e inference/main sync

docs/nitpick-exceptions.ini

@@ -45,6 +45,7 @@ py-class=
     psycopg.AsyncConnection
     ObjectProxy
     fastapi.applications.FastAPI
+    _contextvars.Token
 
 any=
     ; API

instrumentation-genai/opentelemetry-instrumentation-langchain-dev/CHANGELOG.md

@@ -0,0 +1,8 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased

instrumentation-genai/opentelemetry-instrumentation-langchain-dev/LICENSE

@@ -0,0 +1,201 @@
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instrumentation-genai/opentelemetry-instrumentation-langchain-dev/README.rst

@@ -0,0 +1,98 @@
+OpenTelemetry LangChain Instrumentation (Alpha)
+=============================================
+
+This package provides OpenTelemetry instrumentation for LangChain LLM/chat
+workflows. It now relies solely on ``opentelemetry-util-genai`` (the earlier
+``opentelemetry-genai-sdk`` toggle and related environment switch have been removed).
+
+Status: Alpha (APIs and produced telemetry are subject to change).
+
+Features
+--------
+* Automatic spans for LangChain ChatOpenAI (and compatible) invocations.
+* Metrics for LLM latency and token usage (when available from the provider).
+* (Optional) message content capture (disabled by default) for spans and logs.
+* Tool (function) definitions recorded as request attributes.
+
+Installation
+------------
+Install from source (monorepo layout example)::
+
+    pip install -e opentelemetry-instrumentation-langchain-alpha/
+
+This will pull in required OpenTelemetry core + ``opentelemetry-util-genai``.
+
+Quick Start
+-----------
+
+.. code:: python
+
+    from opentelemetry.instrumentation.langchain import LangChainInstrumentor
+    from langchain_openai import ChatOpenAI
+    from langchain_core.messages import HumanMessage, SystemMessage
+
+    # (Optionally) configure providers/exporters before instrumentation
+    LangChainInstrumentor().instrument()
+
+    llm = ChatOpenAI(model="gpt-4o-mini", temperature=0.0)
+    messages = [
+        SystemMessage(content="You are a helpful assistant."),
+        HumanMessage(content="What is the capital of France?"),
+    ]
+    response = llm.invoke(messages)
+    print(response.content)
+
+Environment Variables
+---------------------
+
+Message content (prompt + completion) is NOT collected unless explicitly enabled:
+
+``OTEL_INSTRUMENTATION_LANGCHAIN_CAPTURE_MESSAGE_CONTENT``
+  Set to ``true`` (case-insensitive) to record message text in spans/logs.
+
+For finer-grained content handling controlled by util-genai you may also use:
+
+``OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT``
+  (See ``opentelemetry-util-genai`` docs) Values like ``SPAN_ONLY`` etc.
+
+Removed / Deprecated
+--------------------
+* The legacy ``opentelemetry-genai-sdk`` integration and the environment flag
+  ``OTEL_INSTRUMENTATION_LANGCHAIN_USE_UTIL_GENAI`` were removed. The util-genai
+  handler is now always used.
+* Legacy evaluation framework imports (``get_telemetry_client``, ``TelemetryClient``,
+  ``get_evaluator``) are no longer re-exported here.
+
+Telemetry Semantics
+-------------------
+Spans use incubating GenAI semantic attributes (subject to change) including:
+
+* ``gen_ai.operation.name`` (e.g. ``chat``)
+* ``gen_ai.request.model`` / ``gen_ai.response.model``
+* ``gen_ai.usage.input_tokens`` / ``gen_ai.usage.output_tokens`` (if provided)
+* ``gen_ai.response.id``
+* Tool/function definitions under ``gen_ai.request.function.{i}.*``
+
+Metrics (if a MeterProvider is configured) include:
+
+* LLM duration (histogram/sum depending on pipeline)
+* Token usage counters (input / output)
+
+Testing
+-------
+Run the package tests (from repository root or this directory)::
+
+    pytest -k langchain instrumentation-genai/opentelemetry-instrumentation-langchain-alpha/tests
+
+(Recorded cassettes or proper API keys may be required for full integration tests.)
+
+Contributing
+------------
+Issues / PRs welcome in the main opentelemetry-python-contrib repository. This
+module is alpha: feedback on attribute coverage, performance, and LangChain
+surface expansion is especially helpful.
+
+License
+-------
+Apache 2.0
+