Warn users when instrumentation is used before ag.init(), Previously,…

[Excali556]

(Fixes #3170 )
Previously, calling tracing or instrumentation methods before ag.init() failed silently, making it difficult for users to understand why instrumentation was not working.

This PR adds a warning when such methods are used before initialization, guiding users to call ag.init() first.

Summary

• Adds a helper to detect whether the SDK has been initialized
• Emits a warning when tracing/instrumentation methods are used before ag.init()
• Ensures the warning is logged only once to avoid noise

Testing

Verified locally

• Ran python -m compileall . to ensure no syntax errors
• Manually verified that a warning is logged when calling tracing methods before ag.init()

Added or updated tests

N/A

QA follow-up

N/A

Demo

N/A

Checklist

• I have included a video or screen recording for UI changes, or marked Demo as N/A
• Relevant tests pass locally
• Relevant linting and formatting pass locally
• I have signed the CLA, or I will sign it when the bot prompts me

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[jp-agenta]

Hi @Excali556 ,

This PR looks like a duplicate from the other one.
Could you please unify them ?

[Excali556]

Hi @Excali556 ,

This PR looks like a duplicate from the other one. Could you please unify them ?

Sure

[jp-agenta]

Also @Excali556 ,
There was an open question in the other PR.
Could you please respond to it in this PR ?

[Excali556]

Also @Excali556 , There was an open question in the other PR. Could you please respond to it in this PR ?

Sure.

The idea was mainly to make it more visible to users. The existing log.info can be easy to miss, especially since info logs aren’t always surfaced. Since calling instrumentation before ag.init() can lead to confusing behavior, I thought a warning would make it clearer that something’s off, without breaking anything. So it’s mostly about making the issue easier to notice and act on.