Use dynamic filtering for extra attributes#107
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Extra attributes can now add any key that the builder did not already set on the span, rather than being blocked by a hardcoded 40-key allowlist. This allows attributes like gen_ai.request.model to be set on invoke_agent spans via extraAttributes while still preventing overrides of builder-set keys. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
nikhilNava
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TaoChenOSU,
alexlu4250,
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harsimar,
juliomenendez,
rads-1996,
rajkumar-rangaraj and
xiang17
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Pull request overview
This PR updates Agent365 telemetry data builders to accept a wider set of extraAttributes by filtering dynamically: extra attributes are added only when they don’t conflict with keys already set by the builder, rather than using a fixed reserved-key allowlist. This enables scenarios like setting gen_ai.request.model on invoke_agent spans via extraAttributes when the builder doesn’t set it.
Changes:
- Removed the hardcoded reserved-key allowlist and switched to “don’t override existing keys” filtering for extra attributes.
- Added a regression test ensuring
gen_ai.request.modelcan be supplied viaextraAttributesforInvokeAgentDataBuilderwhen not builder-set.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| test/Microsoft.OpenTelemetry.Agent365.Tests/Runtime/DTOs/Builders/InvokeAgentDataBuilderTests.cs | Adds test coverage for allowing gen_ai.request.model via extraAttributes when not set by the builder. |
| src/Microsoft.OpenTelemetry/Agent365/Runtime/DTOs/Builders/BaseDataBuilder.cs | Replaces allowlist-based filtering with dynamic filtering that blocks overriding already-set builder attributes. |
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…tes-dynamic-filtering # Conflicts: # src/Microsoft.OpenTelemetry/Agent365/Runtime/DTOs/Builders/BaseDataBuilder.cs
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
juliomenendez
approved these changes
Jul 6, 2026
harsimar
approved these changes
Jul 6, 2026
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Extra attributes can now add any key that the builder did not already set on the span, rather than being blocked by a hardcoded 40-key allowlist. This allows attributes like gen_ai.request.model to be set on invoke_agent spans via extraAttributes while still preventing overrides of builder-set keys.
Ported from microsoft/Agent365-dotnet#254