feat: SDK Compliance

[jose-sequeira]

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• I updated the docs if needed.
• No breaking change or entry added to the changelog.
• If there are related changes in the core package, I've already released them, or I'll release them before this one.

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

Instructions and example for changelog

Please add an entry to the appropriate changelog:

• posthog/CHANGELOG.md (core module)
• posthog-android/CHANGELOG.md (android module)
• posthog-server/CHANGELOG.md (server module)
• posthog-android-gradle-plugin/CHANGELOG.md (android plugin module)

Make sure the entry includes this PR's number.
Example:

## Next
- SDK Compliance ([#362](https://github.com/PostHog/posthog-android/pull/362))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

Generated by 🚫 dangerJS against 63fcedf

[github-actions]

PostHog SDK Compliance Report

SDK: posthog-android
Date: 2026-01-02 14:21:56 UTC
Duration: 75757ms

⚠️ Some Tests Failed

12/17 tests passed, 5 failed

---

Capture Tests

⚠️ 12/17 tests passed, 5 failed

View Details

Test	Status	Duration
Format Validation.Event Has Required Fields	✅	2322ms
Format Validation.Event Has Uuid	✅	2024ms
Format Validation.Event Has Lib Properties	✅	2023ms
Format Validation.Distinct Id Is String	✅	2021ms
Format Validation.Token Is Present	✅	2020ms
Retry Behavior.Retries On 503	❌	7025ms
Retry Behavior.Does Not Retry On 400	✅	4023ms
Retry Behavior.Does Not Retry On 401	✅	4021ms
Retry Behavior.Respects Retry After Header	❌	7023ms
Retry Behavior.Implements Backoff	❌	17024ms
Deduplication.Generates Unique Uuids	✅	2043ms
Deduplication.Preserves Uuid On Retry	❌	7023ms
Deduplication.Different Events Have Different Uuids	✅	2024ms
Compression.Sends Gzip When Enabled	✅	2018ms
Batch Format.Uses Proper Batch Structure	✅	2018ms
Error Handling.Does Not Retry On 413	❌	4020ms
Error Handling.Retries On 408	✅	7023ms

Failures

retry_behavior.retries_on_503

Expected at least 3 requests, got 1

retry_behavior.respects_retry_after_header

Expected at least 2 requests, got 1

retry_behavior.implements_backoff

Expected at least 3 requests, got 1

deduplication.preserves_uuid_on_retry

Need at least 2 requests to check retry

error_handling.does_not_retry_on_413

Expected 1 requests, got 2