# Lane notes — Category 1 (Functional MCP Gateway Capability)

- **Owner:** ztaylor
- **Last live-state check:** 2026-06-18 (dashboard 200; gateway `zeb-gateway-test` live)
- **Fixtures used:** gateway `zeb-gateway-test` (7 main-catalog tools, Arcade-Headers auth); users A/B from `config/targets.yaml`. Raw evidence in `tests/probes.md`.

## Log
- 2026-06-18 — lib client connects live; protocol/curation/per-user-visibility/ungranted probes done.
  - PASS: protocol compliance (connect/list/invoke/structured error), tool curation (7 listed == 7 selected).
  - FINDING: per-user tool *list* scoping not differentiated via Arcade-Headers on one gateway (A==B). Needs cat-3 Contextual Access or separate gateways / User Source.
  - Q5: ungranted tool → `McpError: tool not enabled for this gateway`.

## Remaining for cat-1 scoring
- [ ] 2.2 — connect a **second real MCP client (Claude Code)** to the gateway (no-adapter evidence).
- [x] 2.5 — **dynamic registration**: PASS — saved add/remove (−Brightdata, +Youtube) reflected on next list, no restart; draft didn't propagate until Save.
- Reference server built at `lib/mcp_server` (echo/add/whoami); locally validated by `arcade deploy` (3 tools, 0 secrets). **`arcade deploy` is cloud-only (finding)** — see LIVE-POC.
- [ ] 2.7 — **mixed prebuilt + custom**: needs the ref server behind the self-hosted Engine via the **register path** (run `server.py --transport http` + cloudflared tunnel + dashboard Add Server), then compose a gateway (a `main` tool + `echo`). Doubles as cat-9 Stage-2.
- [ ] 2.4 — **`whoami` execution proof**: once registered, call whoami as A vs B (expect A→A, B→B).
- [ ] 2.8 — finalize scores once the above land.