[idityaGE]

Summary

• track OpenCode session parent IDs from session lifecycle events
• parent child-session turn spans to the active parent session span when available
• finalize/clear tracing state per idle session instead of clearing all active sessions
• add an integration regression test for parent-child session trace linkage

Fixes #8.

Verification

• npx pnpm run format
• npx pnpm run build
• npx pnpm run test:integration
• manually verified in the Langfuse UI; see issue comments for before/after screenshots: Child agent sessions produce isolated traces — no linkage to parent trace #8 (comment) and Child agent sessions produce isolated traces — no linkage to parent trace #8 (comment)

[CLAassistant]

All committers have signed the CLA.

[bezbac]

Hi @idityaGE, I'd be happy to merge this. Could you make sure to fill out the CLA #27 (comment)? If you are having any troubles with it, please see the "Troubleshoot CLA License Check" section in our main repository's contributing guide here: https://github.com/langfuse/langfuse/blob/00b4d0de4f626e170c5984c0e3f39a4741252ebf/CONTRIBUTING.md#troubleshoot-cla-license-check

[idityaGE]

@bezbac CLA is signed and the license/cla check is passing now.

[bezbac]

Thanks for the quick turnaround and thanks again for contributing.