[opentelemetry-instrumentation-genai-agno] Add instrumentation for agno model calls

[DylanRussell]

Description

Probably want to wait until #765 lands to avoid duplicate inference calls, but eventually we will want this and that PR will not change the implementation here.

I think once this lands we will have reached parity with the agno instrumentations in open inference and other places..

Type of change

• New feature (non-breaking change which adds functionality)

How has this been tested?

Unot tests

Checklist

• Followed the style guidelines of this project
• Changelog updated if the change requires an entry
• Unit tests added
• Documentation updated

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Waiting on reviewers · refreshed 2026-10-17 01:44 UTC

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[Copilot]

Copilot review overview

🟡 Changes recommended

Model spans start after inference, stream managers are wrapped incorrectly, and required tests are missing.

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Review effort: Balanced
Findings: 2 · 1 · 3

Open (6)

• Wrap outer synchronous model call to capture latency and failures · New
• Use synchronous stream manager wrapper for context-manager API · New
• Decode JSON tool-call arguments before storing them · New
• Add and register chat conformance scenario · New
• Test synchronous stream early close and single finalization · New
• Test async stream interruptions, errors, and early close · New

What changed in this PR

Adds Agno model-call telemetry for synchronous, asynchronous, streaming, multimodal, and error paths.

Changes:

• Adds GenAI chat instrumentation and stream wrappers.
• Adds provider/message/media extraction utilities.
• Adds model tests and documentation.

File	Description
patch.py	Patches model response processing.
stream.py	Adds model stream telemetry wrappers.
utils.py	Adds model and multimodal extraction.
test_model.py	Tests model instrumentation.
test_embedder.py	Makes Gemini tests optional.
README.rst	Documents model operations.
.changelog/​773.added	Records the feature.

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[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: DylanRussell / name: Dylan Russell (04d9219, 08db70d, 093878d, 0f993a0, 16a3252, 2c5c4a7, 2c94b98, 339c8d7, 359af96, 44ecdb7, 4f0a166, 66842de, 765e384, 9485e6f, a7100e1, a79a909, b47d7c7, c907f48, d2bada1, e0da10c)

[github-actions]

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