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Original file line number Diff line number Diff line change
@@ -1,2 +1,10 @@
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

"""Agent Framework observability extensions for Agent365."""

from .trace_instrumentor import AgentFrameworkInstrumentor

__all__ = [
"AgentFrameworkInstrumentor",
]
Original file line number Diff line number Diff line change
@@ -0,0 +1,51 @@
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

from microsoft_agents_a365.observability.core.constants import (
EXECUTE_TOOL_OPERATION_NAME,
GEN_AI_INPUT_MESSAGES_KEY,
GEN_AI_OUTPUT_MESSAGES_KEY,
GEN_AI_TOOL_ARGS_KEY,
GEN_AI_TOOL_CALL_RESULT_KEY,
INVOKE_AGENT_OPERATION_NAME,
)
from microsoft_agents_a365.observability.core.exporters.enriched_span import EnrichedReadableSpan
from opentelemetry.sdk.trace import ReadableSpan

from .utils import extract_input_content, extract_output_content

# Agent Framework specific attribute keys
AF_TOOL_CALL_ARGUMENTS_KEY = "gen_ai.tool.call.arguments"
AF_TOOL_CALL_RESULT_KEY = "gen_ai.tool.call.result"


def enrich_agent_framework_span(span: ReadableSpan) -> ReadableSpan:
"""
Enricher function for Agent Framework spans.
"""
extra_attributes = {}
attributes = span.attributes or {}

# Only extract content for invoke_agent spans
if span.name.startswith(INVOKE_AGENT_OPERATION_NAME):
# Extract all text content from input messages
input_messages = attributes.get(GEN_AI_INPUT_MESSAGES_KEY)
if input_messages:
extra_attributes[GEN_AI_INPUT_MESSAGES_KEY] = extract_input_content(input_messages)

output_messages = attributes.get(GEN_AI_OUTPUT_MESSAGES_KEY)
if output_messages:
extra_attributes[GEN_AI_OUTPUT_MESSAGES_KEY] = extract_output_content(output_messages)

# Map tool attributes for execute_tool spans
elif span.name.startswith(EXECUTE_TOOL_OPERATION_NAME):
if AF_TOOL_CALL_ARGUMENTS_KEY in attributes:
extra_attributes[GEN_AI_TOOL_ARGS_KEY] = attributes[AF_TOOL_CALL_ARGUMENTS_KEY]

if AF_TOOL_CALL_RESULT_KEY in attributes:
extra_attributes[GEN_AI_TOOL_CALL_RESULT_KEY] = attributes[AF_TOOL_CALL_RESULT_KEY]

if extra_attributes:
return EnrichedReadableSpan(span, extra_attributes)

return span
Original file line number Diff line number Diff line change
@@ -1,15 +1,12 @@
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

# Custom Span Processor

from opentelemetry.sdk.trace.export import SpanProcessor

from microsoft_agents_a365.observability.core.constants import (
GEN_AI_OPERATION_NAME_KEY,
EXECUTE_TOOL_OPERATION_NAME,
GEN_AI_EVENT_CONTENT,
GEN_AI_OPERATION_NAME_KEY,
)
from opentelemetry.sdk.trace.export import SpanProcessor


class AgentFrameworkSpanProcessor(SpanProcessor):
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -7,22 +7,28 @@
from typing import Any

from microsoft_agents_a365.observability.core.config import get_tracer_provider, is_configured
from microsoft_agents_a365.observability.core.exporters.enriching_span_processor import (
register_span_enricher,
unregister_span_enricher,
)
from opentelemetry.instrumentation.instrumentor import BaseInstrumentor

from microsoft_agents_a365.observability.extensions.agentframework.span_enricher import (
enrich_agent_framework_span,
)
from microsoft_agents_a365.observability.extensions.agentframework.span_processor import (
AgentFrameworkSpanProcessor,
)

# -----------------------------
# 3) The Instrumentor class
# -----------------------------
_instruments = ("agent-framework-azure-ai >= 1.0.0b251114",)
_instruments = ("agent-framework-azure-ai >= 1.0.0",)


class AgentFrameworkInstrumentor(BaseInstrumentor):
"""
Instruments Agent Framework:
• Installs your custom OTel SpanProcessor
Instruments Agent Framework with Agent365 observability.
"""

def __init__(self):
Expand All @@ -37,13 +43,28 @@ def instrumentation_dependencies(self) -> Collection[str]:

def _instrument(self, **kwargs: Any) -> None:
"""
kwargs (all optional):
"""
Instrument Agent Framework.

Args:
**kwargs: Optional configuration parameters.
"""
# Ensure we have an SDK TracerProvider
provider = get_tracer_provider()

# Add processor for on_start modifications (rename spans, add attributes)
self._processor = AgentFrameworkSpanProcessor()
provider.add_span_processor(self._processor)

# Register enricher for on_end modifications
register_span_enricher(enrich_agent_framework_span)

def _uninstrument(self, **kwargs: Any) -> None:
pass
"""
Remove Agent Framework instrumentation.
"""
# Unregister the enricher
unregister_span_enricher()

# Shutdown the processor
if hasattr(self, "_processor"):
self._processor.shutdown()
Original file line number Diff line number Diff line change
@@ -0,0 +1,48 @@
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

"""Utility functions for Agent Framework observability extensions."""

from __future__ import annotations

import json


def extract_content_as_string_list(messages_json: str, role_filter: str | None = None) -> str:
"""Extract content values from messages JSON and return as JSON string list."""
try:
messages = json.loads(messages_json)
if isinstance(messages, list):
contents = []
for msg in messages:
if isinstance(msg, dict):
role = msg.get("role", "")

# Filter by role if specified
if role_filter and role != role_filter:
continue

# Handle Agent Framework format with "parts"
parts = msg.get("parts")
if parts and isinstance(parts, list):
for part in parts:
if isinstance(part, dict):
part_type = part.get("type", "")
# Only extract text content, not tool_call or tool_call_response
if part_type == "text" and "content" in part:
contents.append(part["content"])
return json.dumps(contents)
return messages_json
except (json.JSONDecodeError, TypeError):
# If parsing fails, return as-is
return messages_json


def extract_input_content(messages_json: str) -> str:
"""Extract text content from user messages only."""
return extract_content_as_string_list(messages_json, role_filter="user")


def extract_output_content(messages_json: str) -> str:
"""Extract only assistant text content from output messages."""
return extract_content_as_string_list(messages_json, role_filter="assistant")
2 changes: 2 additions & 0 deletions tests/observability/extensions/agentframework/__init__.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
Original file line number Diff line number Diff line change
@@ -0,0 +1,68 @@
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

"""Tests for Agent Framework span enricher."""

import unittest
from unittest.mock import Mock

from microsoft_agents_a365.observability.core.constants import (
GEN_AI_INPUT_MESSAGES_KEY,
GEN_AI_OUTPUT_MESSAGES_KEY,
GEN_AI_TOOL_ARGS_KEY,
GEN_AI_TOOL_CALL_RESULT_KEY,
)
from microsoft_agents_a365.observability.extensions.agentframework.span_enricher import (
AF_TOOL_CALL_ARGUMENTS_KEY,
AF_TOOL_CALL_RESULT_KEY,
enrich_agent_framework_span,
)


class TestAgentFrameworkSpanEnricher(unittest.TestCase):
"""Test suite for enrich_agent_framework_span function."""

def test_invoke_agent_span_enrichment(self):
"""Test invoke_agent span extracts user input and assistant output text only."""
span = Mock(
name="invoke_agent Agent365Assistant",
attributes={
GEN_AI_INPUT_MESSAGES_KEY: '[{"role": "user", "parts": [{"type": "text", "content": "Compute 15 % 4"}]}]',
GEN_AI_OUTPUT_MESSAGES_KEY: '[{"role": "assistant", "parts": [{"type": "tool_call", "id": "c1"}]}, {"role": "tool", "parts": [{"type": "tool_call_response"}]}, {"role": "assistant", "parts": [{"type": "text", "content": "Result is 3."}]}]',
},
)
span.name = "invoke_agent Agent365Assistant"
result = enrich_agent_framework_span(span)
self.assertEqual(result.attributes[GEN_AI_INPUT_MESSAGES_KEY], '["Compute 15 % 4"]')
self.assertEqual(result.attributes[GEN_AI_OUTPUT_MESSAGES_KEY], '["Result is 3."]')

def test_execute_tool_span_enrichment(self):
"""Test execute_tool span maps tool arguments and result to standard keys."""
span = Mock(
name="execute_tool calculate",
attributes={
AF_TOOL_CALL_ARGUMENTS_KEY: '{"expression": "2 + 2"}',
AF_TOOL_CALL_RESULT_KEY: "Result is 4",
},
)
span.name = "execute_tool calculate"
result = enrich_agent_framework_span(span)
self.assertEqual(result.attributes[GEN_AI_TOOL_ARGS_KEY], '{"expression": "2 + 2"}')
self.assertEqual(result.attributes[GEN_AI_TOOL_CALL_RESULT_KEY], "Result is 4")

def test_non_matching_and_edge_cases_return_original(self):
"""Test non-matching, None, and empty attribute spans return unchanged."""
span = Mock(name="other_op", attributes={"key": "value"})
span.name = "other_op"
self.assertEqual(enrich_agent_framework_span(span), span)

span.name = "invoke_agent Test"
span.attributes = None
self.assertEqual(enrich_agent_framework_span(span), span)

span.attributes = {}
self.assertEqual(enrich_agent_framework_span(span), span)


if __name__ == "__main__":
unittest.main()
35 changes: 35 additions & 0 deletions tests/observability/extensions/agentframework/test_utils.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

"""Tests for Agent Framework utils."""

import unittest

from microsoft_agents_a365.observability.extensions.agentframework.utils import (
extract_content_as_string_list,
extract_input_content,
extract_output_content,
)


class TestAgentFrameworkUtils(unittest.TestCase):
"""Test suite for Agent Framework utility functions."""

def test_extract_content_filters_text_by_role(self):
"""Test text extraction with role filtering, ignoring tool calls."""
msgs = '[{"role": "user", "parts": [{"type": "text", "content": "Hi"}]}, {"role": "assistant", "parts": [{"type": "tool_call"}, {"type": "text", "content": "Hello"}]}]'
self.assertEqual(extract_content_as_string_list(msgs), '["Hi", "Hello"]')
self.assertEqual(extract_content_as_string_list(msgs, role_filter="user"), '["Hi"]')
self.assertEqual(extract_input_content(msgs), '["Hi"]')
self.assertEqual(extract_output_content(msgs), '["Hello"]')

def test_handles_invalid_and_edge_cases(self):
"""Test invalid JSON and edge cases return appropriate values."""
self.assertEqual(extract_content_as_string_list("invalid"), "invalid")
self.assertEqual(extract_content_as_string_list('{"not": "list"}'), '{"not": "list"}')
self.assertEqual(extract_content_as_string_list("[]"), "[]")
self.assertEqual(extract_content_as_string_list('[{"role": "user"}]'), "[]")


if __name__ == "__main__":
unittest.main()