feat(integrations): implement context management for invoke_agent spans #5089
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- Introduced context variables to manage nested invoke_agent spans safely. - Added functions to push and pop spans from the context stack. - Updated existing code to utilize context variables instead of Sentry scope for agent management. - Enhanced execute_tool_span to support parent-child relationships between spans. This change improves the handling of agent spans during nested calls, ensuring better traceability and isolation of spans in asynchronous contexts.
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Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## master #5089 +/- ##
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- Coverage 83.94% 83.94% -0.01%
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Files 179 179
Lines 17948 17970 +22
Branches 3193 3198 +5
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+ Hits 15067 15085 +18
- Misses 1909 1911 +2
- Partials 972 974 +2
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| self._span.__enter__() | ||
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| # Push span and agent to contextvar stack | ||
| push_invoke_agent_span(self._span, self.agent, self.is_streaming) |
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Bug: Orphaned Context Entries Corrupt Stack
In _StreamingContextManagerWrapper.__aenter__, if an exception occurs after calling push_invoke_agent_span on line 51 but before the method completes (e.g., when entering the original context manager on line 54), the __aexit__ method will not be called, leaving an orphaned entry on the contextvar stack that never gets popped. This causes stack corruption for subsequent operations in the same context.
| finally: | ||
| sentry_sdk.get_current_scope().remove_context("pydantic_ai_agent") | ||
| # Pop span from contextvar stack | ||
| pop_invoke_agent_span() |
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Bug: Span Context: Premature Exit
The pop_invoke_agent_span() call in the finally block executes before the with statement's implicit span.__exit__() call. This means the span is removed from the contextvar stack while it's still active and before its cleanup runs. The correct approach would be to pop the span after the with block completes, not inside its finally clause.
This change improves the handling of agent spans during nested calls, ensuring better traceability and isolation of spans in asynchronous contexts.
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tox -e linters.feat:,fix:,ref:,meta:)