cat1: dynamic registration PASS (saved edit -Brightdata +Youtube reflected live, no restart)

categories/cat1-functional/NOTES.md

@@ -12,7 +12,7 @@
 
 ## Remaining for cat-1 scoring
 - [ ] 2.2 — connect a **second real MCP client (Claude Code)** to the gateway (no-adapter evidence).
-- [ ] 2.5 — **dynamic registration**: add/remove a tool on the gateway (dashboard or API), re-list, confirm no restart. (needs a gateway edit)
+- [x] 2.5 — **dynamic registration**: PASS — saved add/remove (−Brightdata, +Youtube) reflected on next list, no restart; draft didn't propagate until Save.
 - [ ] 2.7 — **mixed prebuilt + custom**: compose a gateway with a `main` tool + a `lib/mcp_server` tool. (needs reference server → `arcade login`/`arcade deploy`)
 - [ ] 2.4 — **`whoami` execution proof** that calls run as the calling user. (needs reference server)
 - [ ] 2.8 — finalize scores once the above land.

categories/cat1-functional/criteria-section-1.md

@@ -14,8 +14,8 @@
 | 4 | Supports all required MCP clients without custom adapters (Claude Code, Cursor, LangGraph, internal agent frameworks). |  | PARTIAL — custom `mcp`-SDK client connected with no adapter ✓. Claude Code connect = 2.2; Cursor = teammate test. |
 | 5 | Tool execution isolation — one user's tool call cannot access another user's tokens or context. |  | PENDING — vault is per-`user_id` by design; direct proof via reference-server `whoami` (2.4). |
 | 6 | Supports mixing prebuilt (global catalog) and custom (self-hosted) servers behind a single gateway URL. |  | PENDING — needs reference server (2.7). |
-| 7 | Gateway is pure metadata — adding or removing tools does not require server redeployment. |  | PARTIAL — gateway is metadata (per Arcade model); add/remove-without-restart probe = 2.5. |
-| 8 | Dynamic tool registration — new tools become available without gateway restart. |  | PENDING — 2.5 (needs a gateway edit). |
+| 7 | Gateway is pure metadata — adding or removing tools does not require server redeployment. |  | PASS — saved edit (remove Brightdata, add Youtube_SearchForVideos) reflected on next `tools/list`, no restart. |
+| 8 | Dynamic tool registration — new tools become available without gateway restart. |  | PASS — new tool appeared immediately after Save; no engine/server restart. |
 
 **Average:** ___   **Category score:** ___
 
@@ -29,7 +29,7 @@
 |---|---|---|---|
 | 1 | Can a Claude Code client connect to the gateway and see only the tools granted to the current user? | Connect: lib client ✓; Claude Code pending (2.2). "Only granted tools": N/A — no per-user grants on this gateway (list is gateway-wide). | probes.md |
 | 2 | Can the same gateway URL serve two different users with different tool lists? | **No** — A and B see identical 7 tools. | probes.md (A==B) |
-| 3 | Can we add a tool to the gateway without restarting any server or the Engine? | Pending (2.5). |  |
+| 3 | Can we add a tool to the gateway without restarting any server or the Engine? | **Yes** — saved add/remove appeared on the next `tools/list`, no restart. (Draft edit did NOT propagate until Save — expected.) | probes.md |
 | 4 | Can we expose tools from both a prebuilt connector and a custom self-hosted server through one gateway endpoint? | Pending reference server (2.7). |  |
 | 5 | What happens when a client requests a tool the user has not been granted? | `McpError: tool not enabled for this gateway` — clean rejection at the Engine, no leak/execution. | probes.md |
 
@@ -45,4 +45,5 @@
 - **Per-user tool-list scoping is gateway-wide, not per-user, in Arcade-Headers mode** (A==B identical). Differentiation requires Contextual Access (cat 3) or separate gateways / a User Source. Signals the score-3 anchor ("per-user scoping requires workarounds") unless cat-3 lifts it.
 - **Invocation routes through the Engine and fails cleanly** when an OAuth provider/secret isn't configured (`Slack_WhoAmI` → "unsupported authorization provider type ID '' (providerID 'slack')") — no silent fallback to a shared credential.
 - **Ungranted tool** → `tool not enabled for this gateway` (clean rejection).
+- **Dynamic registration works**: a saved gateway edit (add + remove tools) takes effect on the next `tools/list` with no engine/server restart — gateway is pure metadata. Edits only apply after **Save** (drafts don't propagate).
 - Minor protocol nit: client logs `Session termination failed: 202` on session DELETE (benign).

categories/cat1-functional/tests/probes.md

@@ -44,3 +44,15 @@ The Engine processed the call and failed cleanly because the Slack OAuth provide
 (the gateway's "Missing Requirements"). Demonstrates: invocation routes through the Engine, returns a
 structured error result, and does **not** fall back to a shared credential. Clean per-call invocation
 without per-user OAuth + a project secret (e.g. serp_api_key) is deferred to the reference server (`echo`).
+
+## Dynamic registration (2.5) — criteria 7 & 8, benchmark Q3
+Edited `zeb-gateway-test` in the dashboard: removed `Brightdata_ScrapeAsMarkdown`, added
+`Youtube_SearchForVideos`. A fresh `tools/list`:
+```
+added since first probe:   ['Youtube_SearchForVideos']
+removed since first probe: ['Brightdata_ScrapeAsMarkdown']
+```
+**PASS** — change took effect on the next list with **no engine/server restart** (gateway = pure
+metadata). Corollary: the edit did **not** propagate while unsaved (draft); it appeared only after
+**Save** — correct/expected, not a defect. Propagation was effectively immediate (next poll).
+

config/targets.yaml

@@ -14,14 +14,14 @@ gateways:
     auth_mode: arcade-headers          # API key + Arcade-User-ID (headless)
     created_by: ztaylor
     tools:
-      - Brightdata_ScrapeAsMarkdown
       - GoogleDocs_CreateBlankDocument
       - GoogleDocs_CreateDocumentFromText
       - GoogleDocs_GetDocumentAsDocmd
       - GoogleDocs_GetDocumentById
       - Slack_SendMessage
       - Slack_WhoAmI
-    notes: baseline cat-1 gateway from main catalog (Slack, GoogleDocs, Brightdata)
+      - Youtube_SearchForVideos
+    notes: baseline cat-1 gateway from main catalog (Slack, GoogleDocs, Youtube). Edited live 2026-06-18 (-Brightdata, +Youtube) to test dynamic registration.
 
 # name -> {kind: hosted|self-hosted, tools: [...], created_by, notes}   (filled in Task 1.4)
 servers: {}