ubiquitous-invention/config/CursorSync.md

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# Cursor sync configuration
This document describes how the application and Cursor should keep **plans, epics, and tasks** aligned. Implementation is incremental; treat this as the contract the data layer and jobs will follow.
## Goals
1. **App → Cursor**: Tasks and status updates in the app appear as Cursor to-dos / plan items where configured.
2. **Cursor → App**: To-dos created or completed in Cursor are mirrored into the correct plan/epic in the app.
3. **Markdown as source of truth (optional mode)**: Repo markdown can be authoritative; the app imports on change, or the app exports on change—policy is per tenant (see Modes).
## Multitenancy
- Each **tenant** has its own:
- API credentials or OAuth connection to Cursor (when available).
- Mapping table: internal plan/epic/task id ↔ Cursor identifiers ↔ filesystem paths under `plans/`.
- No cross-tenant sync or shared Cursor workspace.
## Modes (to implement)
| Mode | Behavior |
|------|----------|
| `markdown_authoritative` | Watch `plans/**`; import on save; push summaries to Cursor. |
| `app_authoritative` | UI/API edits win; export markdown + update Cursor on commit or interval. |
| `bidirectional` | Reconcile by `updated_at` and explicit conflict rules (last-write-wins per field or manual resolution). |
## API surface (target)
Lightweight endpoints or jobs (names indicative):
- `POST /api/v1/tenants/:tenantId/plans` — create plan + optional seed markdown paths.
- `GET/PATCH /api/v1/tenants/:tenantId/plans/:planId` — read/update metadata and Cursor mapping.
- `GET/PATCH /api/v1/.../epics/:epicId`, `.../tasks/:taskId` — same for epics and tasks.
- `POST /api/v1/tenants/:tenantId/sync/cursor/pull` — ingest Cursor to-dos into tasks.
- `POST /api/v1/tenants/:tenantId/sync/cursor/push` — export task state to Cursor.
- Webhook receiver (future): `POST /webhooks/cursor` for push notifications when Cursor exposes them; until then **polling** on a tenant schedule.
## Mapping record (logical schema)
Implemented in Postgres as `markdown_backlog_items` plus `cursor_sync_mappings` (see `docs/Glossary.md`). Logical fields:
- `tenant_id``markdown_backlog_items.workspace_id` (workspace object UUID)
- `plan_slug`, `epic_slug`, `slug` (filesystem / frontmatter alignment)
- `cursor_plan_id` / `cursor_item_id``cursor_sync_mappings` (nullable until connected)
- `last_pulled_at`, `last_pushed_at`, `sync_content_hash` on the mapping row
- `content_hash` on the backlog row (file body hash for import idempotency)
## Environment variables (placeholder)
Document only; wire in app config when implementing.
| Variable | Purpose |
|----------|---------|
| `CURSOR_SYNC_ENABLED` | `true` / `false` per environment. |
| `CURSOR_SYNC_POLL_INTERVAL_SEC` | Polling fallback interval. |
| `CURSOR_API_BASE_URL` | When a stable API exists for your integration tier. |
| `CURSOR_WEBHOOK_SECRET` | Verify inbound webhooks. |
## Security
- Store tokens in tenant-scoped secrets (env, vault, or DB encrypted column)—never in markdown.
- Audit log for every push/pull with actor (user id or system job).
## References
- Backlog layout: `plans/README.md`
- Terminology: `docs/Glossary.md`
- Templates: `docs/templates/`