## What
Makes the MCP `recall` tool render memories the same way the console **playground** does — rich, scored, relation-aware output — instead of the old flat `### Memory N (NN% match)` list.
The playground pattern is: **profile + rich search → one shared `formatMemories` formatter → feed to the model.** This ports that into the standalone MCP server.
## Changes
- **`format.ts`** (new) — `formatMemories`, lifted verbatim from the playground. Pure, dependency-free. Renders similarity scores, `agg`/`chunk` markers, related-memory arrows (`←` parent, `→` child, `~` related), attached document summaries, and temporal context.
- **`client.ts`** — `SupermemoryClient.search()` now accepts the playground's retrieval knobs (`searchMode` / `rerank` / `rewriteQuery` / `include`) and **stops discarding** the rich response fields (`context`, `documents`, `metadata`, `isAggregated`) during normalization, so the formatter has data to render.
- **`server.ts` (`handleRecall`)** — retrieves memories via `client.search()` with `include: { documents, relatedMemories }`, prepends the user's profile (stable + recent facts) when `includeProfile` is set, and renders memories through `formatMemories`. Output capped at `MAX_RECALL_CHARS`.
## How it maps to the playground
| | Playground | MCP (this PR) |
|---|---|---|
| Profile | injected into its own system prompt (`<user_profile>`) | prepended to `recall` output / exposed via `context` prompt |
| Search | hook pre-fetch **or** tool | `recall` tool (model-triggered) |
| Formatting | `formatMemories` → system prompt | `formatMemories` → `recall` tool result |
## Testing
Verified end-to-end against a local API + local MCP, driven through a real MCP client (and Claude Desktop). `recall` now returns scored memory blocks with `Source:`/`Document:` lines and the legend header. Existing e2e assertions remain compatible (they match `## User Profile` / `## Relevant Memories`, both still emitted).
## Notes
- One deliberate gap vs the playground: `aggregate` — the public SDK's `search.memories` doesn't expose it, so no `agg` synthesis blocks. Relation arrows render only when memories actually have linked parent/child versions.
- Possible follow-up: expose the `include` / `rerank` knobs as `recall` tool params so callers can toggle relations/documents per call.
- Pre-existing `tsc` errors in `server.ts` (dual `@modelcontextprotocol/sdk` install) and `mcp-app.ts` (DOM `lib`) are unrelated to this change — confirmed by an unchanged baseline.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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**Session Details**
- Session: [View Session](https://supermemory.us1.vorflux.com/agent-sessions/c616fc88-a725-4961-9011-712bce740601)
- Requested by: Sreeram Sreedhar (sreeram@supermemory.com)
- Address comments on this PR. Add `(aside)` to your comment to have me ignore it.
### fix(mcp): prevent LLM from overriding x-sm-project container tag
- When `x-sm-project` header is configured, the `containerTag` field is now
excluded from memory/recall/context tool schemas
- This prevents LLMs from overriding the configured project by picking a
different containerTag from the available projects list
- When no header is set, behavior is unchanged — containerTag remains visible
in schemas for manual project selection via listProjects
