[Feedback] :thumbsup: positive — Daydream user retention using meaningful core actions

## Feedback (positive)

**Question:** Daydream user retention using meaningful core actions
**Tool:** `query`
**Dataset:** `semantic.posthog_events`

### Notes
posthog_events.is_core_action (Bool) and core_action_name (String) are pre-computed and reliable for retention analysis. Core action names: api_stream_created, community_engagement, dashboard visit, logged in creator page visit, playground stream, project_published, scope_stream_started, sign up. Always exclude 'sign up' from return-event retention checks (it's the entry event). Join key to cohort_members: daydream_user_email = cohort_members.user_email. user_type='external' filter correctly excludes internal/anonymous users for cohort analysis.

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_Feedback ID: `1dd7e9c3-aad6-4412-bc39-1e209337dc7b` | Recorded at 2026-03-09T21:54:13.255Z_

Review the `query` tool and the `semantic.posthog_events` dataset details recorded here, including the `is_core_action`, `core_action_name`, and cohort join requirements. The issue does not define a specific code change or completion condition, so the desired retention-analysis outcome needs clarification before implementation.

Written by the indexing model from the issue text.