sb-iam
546aeeed70
Adds the team_model graph layer (the "it learned" view) and its visualization,
per docs/graph.md. Demo-backed first; built on origin/main conventions.
- shared: PodGraph / node / edge / metric types + GraphNodeDoc / GraphEdgeDoc
- backend/src/graph: demo graph data; Mongo store (loadPodGraph w/ demo
fallback, seedGraph, reachFrom via $graphLookup); graph:seed script
- backend/src/server.ts: additive GET /api/pods/:id/graph + /graph/reach/:node
- frontend: dark-Bauhaus GraphView + fetch helper, reachable from a
"Team memory" toggle in App.tsx
- docs/graph.md: spec (data model, $graphLookup, API, demo-first plan)
Demo-backed: the route serves a grounded demo graph when team_model has no
graph yet; graph:seed writes team_model + graph_nodes/graph_edges so the
$graphLookup traversal is real. Swap loadPodGraph to live team_model later.
Known follow-ups before merge: branch is based on 65a0791; origin/main is now
at 1294b84, so this needs a rebase + App.tsx conflict resolution (teammate
rewrote App.tsx with live room view / one-click join).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
89 lines
4.0 KiB
Markdown
89 lines
4.0 KiB
Markdown
# Continual-Learning Graph Spec
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> Owner: graph data + visualization. Status: demo-backed (live `team_model` reads land later).
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> Satisfies the documentation-first gate for the `backend/src/graph/*` and
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> `frontend/src/components/GraphView.tsx` files.
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## What this is (and is NOT)
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PodMan's **visible "it learned" surface**. The graph is a render of the per-pod
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`team_model` — who **owns / edits** which files, where work **collides**, and what
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PodMan **learned** from accepted interventions (the `learned_from` edges). It is the
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continual-learning loop made legible in 10 seconds: _"PodMan now knows Karti owns auth."_
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It is **not** a generic analytics dashboard (judges down-rank dashboard-as-product). It is a
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**secondary view** behind the pods list — opened from a header toggle — that exists to make
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the self-improving loop _visible_ during the demo. The landing surface stays the pods list.
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## Data model — graph as a view of `team_model`
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The graph lives in two places, both keyed by `podId`:
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1. **Embedded (served to the viz):** the `team_model` document carries a `graph` field:
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```ts
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// team_model doc (one per pod, unique index { podId: 1 })
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{ podId, graph: PodGraph, updatedAt }
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```
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`GET /api/pods/:podId/graph` returns `team_model.graph`, or a demo graph when none exists yet.
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2. **Normalized (for traversal):** the same nodes/edges are mirrored into two collections so
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the model can be walked with MongoDB `$graphLookup` (the graph-database pattern):
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| Collection | Doc shape (`shared/src/graph.ts`) | Index |
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| ------------- | ----------------------------------------- | ---------------------------- |
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| `graph_nodes` | `GraphNodeDoc` = `PodGraphNode` + `podId` | `{ podId: 1, id: 1 }` unique |
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| `graph_edges` | `GraphEdgeDoc` = `PodGraphEdge` + `podId` | `{ podId: 1, source: 1 }` |
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Node kinds: `engineer · feature · file · collision · intervention`.
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Edge kinds: `owns · editing · touches · collides · warns · learned_from`.
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The `learned_from` edges are the continual-learning signal — derived from accepted
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`interventions` / `outcomes` (ownership PodMan retains across sessions).
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### Traversal (`$graphLookup`)
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Walk the directed edge chain from any node (e.g. engineer → file → collision → intervention):
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```ts
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db.collection('graph_edges').aggregate([
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{ $match: { podId, source: startNodeId } },
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{
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$graphLookup: {
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from: 'graph_edges',
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startWith: '$target',
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connectFromField: 'target',
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connectToField: 'source',
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as: 'reaches',
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restrictSearchWithMatch: { podId },
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},
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},
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]);
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```
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This answers "what does this engineer's edit reach?" — the risk path PodMan lights up.
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## API
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| Method | Route | Returns |
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| ------ | ---------------------------------- | --------------------------------------------- |
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| `GET` | `/api/pods/:podId/graph` | `PodGraph` (live `team_model`, demo fallback) |
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| `GET` | `/api/pods/:podId/graph/reach/:id` | `$graphLookup` reachability from node `:id` |
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Additive routes in `backend/src/server.ts` (shared file — additive only).
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## Files
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- `shared/src/graph.ts` — `PodGraph`, `PodGraphNode/Edge/Metric`, `GraphNodeDoc`, `GraphEdgeDoc`
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- `backend/src/graph/demo.ts` — `createDemoPodGraph(podId)` (grounded in the demo-pod crew)
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- `backend/src/graph/store.ts` — `loadPodGraph`, `seedGraph`, `reachFrom` (`$graphLookup`)
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- `backend/src/graph/seed.ts` — `pnpm graph:seed` (writes demo into `team_model` + graph collections)
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- `frontend/src/lib/graph.ts` — `fetchPodGraph(podId)`
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- `frontend/src/components/GraphView.tsx` — dark-Bauhaus SVG graph (toggle from `App.tsx`)
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## Demo-first plan
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1. Serve `createDemoPodGraph()` from the route (demo-stable, no DB dependency on the demo path).
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2. `pnpm graph:seed` writes the same graph into Mongo so `$graphLookup` is real, not a mock.
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3. Swap `loadPodGraph` to read live `team_model.graph` once the ingest pipeline populates it.
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