From a7e439acfe9f09ea33edb63dae698cc7738d31d5 Mon Sep 17 00:00:00 2001
From: Kyle Altendorf <sda@fstab.net>
Date: Tue, 6 Jan 2026 14:53:16 -0500
Subject: [PATCH] fix(tui): display dynamically registered MCP servers in
 status
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

MCP servers registered via POST /mcp were working (tools available) but
not appearing in the TUI /status dialog. This was because MCP.status()
only returned config-based servers, and the TUI didn't refresh after
dynamic registration.

Changes:
- MCP.status() now includes dynamically registered MCPs from state
- Added TuiEvent.McpRefresh event to signal MCP status changes
- MCP.add() publishes McpRefresh when a new server is added
- TUI sync context listens for McpRefresh and refetches status

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 packages/opencode/src/cli/cmd/tui/context/sync.tsx |  5 +++++
 packages/opencode/src/cli/cmd/tui/event.ts         |  1 +
 packages/opencode/src/mcp/index.ts                 | 10 ++++++++++
 packages/sdk/js/src/v2/gen/sdk.gen.ts              |  8 +++++++-
 packages/sdk/js/src/v2/gen/types.gen.ts            | 10 +++++++++-
 5 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/packages/opencode/src/cli/cmd/tui/context/sync.tsx b/packages/opencode/src/cli/cmd/tui/context/sync.tsx
index 8a14d8b2e77..543cc71e9d6 100644
--- a/packages/opencode/src/cli/cmd/tui/context/sync.tsx
+++ b/packages/opencode/src/cli/cmd/tui/context/sync.tsx
@@ -257,6 +257,11 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           break
         }
 
+        case "tui.mcp.refresh": {
+          sdk.client.mcp.status().then((x) => setStore("mcp", reconcile(x.data!)))
+          break
+        }
+
         case "vcs.branch.updated": {
           setStore("vcs", { branch: event.properties.branch })
           break
diff --git a/packages/opencode/src/cli/cmd/tui/event.ts b/packages/opencode/src/cli/cmd/tui/event.ts
index 7c75523c136..56ba24931ca 100644
--- a/packages/opencode/src/cli/cmd/tui/event.ts
+++ b/packages/opencode/src/cli/cmd/tui/event.ts
@@ -4,6 +4,7 @@ import z from "zod"
 
 export const TuiEvent = {
   PromptAppend: BusEvent.define("tui.prompt.append", z.object({ text: z.string() })),
+  McpRefresh: BusEvent.define("tui.mcp.refresh", z.object({})),
   CommandExecute: BusEvent.define(
     "tui.command.execute",
     z.object({
diff --git a/packages/opencode/src/mcp/index.ts b/packages/opencode/src/mcp/index.ts
index aca0c663152..4ea0be15d83 100644
--- a/packages/opencode/src/mcp/index.ts
+++ b/packages/opencode/src/mcp/index.ts
@@ -269,6 +269,9 @@ export namespace MCP {
     s.clients[name] = result.mcpClient
     s.status[name] = result.status
 
+    // Notify TUI to refresh MCP status
+    Bus.publish(TuiEvent.McpRefresh, {})
+
     return {
       status: s.status,
     }
@@ -488,6 +491,13 @@ export namespace MCP {
       result[key] = s.status[key] ?? { status: "disabled" }
     }
 
+    // Include dynamically registered MCPs not in config
+    for (const [key, status] of Object.entries(s.status)) {
+      if (!(key in result)) {
+        result[key] = status
+      }
+    }
+
     return result
   }
 
diff --git a/packages/sdk/js/src/v2/gen/sdk.gen.ts b/packages/sdk/js/src/v2/gen/sdk.gen.ts
index a26cefb176f..7f247e38d37 100644
--- a/packages/sdk/js/src/v2/gen/sdk.gen.ts
+++ b/packages/sdk/js/src/v2/gen/sdk.gen.ts
@@ -18,6 +18,7 @@ import type {
   ConfigUpdateResponses,
   EventSubscribeResponses,
   EventTuiCommandExecute,
+  EventTuiMcpRefresh,
   EventTuiPromptAppend,
   EventTuiSessionSelect,
   EventTuiToastShow,
@@ -2804,7 +2805,12 @@ export class Tui extends HeyApiClient {
   public publish<ThrowOnError extends boolean = false>(
     parameters?: {
       directory?: string
-      body?: EventTuiPromptAppend | EventTuiCommandExecute | EventTuiToastShow | EventTuiSessionSelect
+      body?:
+        | EventTuiPromptAppend
+        | EventTuiMcpRefresh
+        | EventTuiCommandExecute
+        | EventTuiToastShow
+        | EventTuiSessionSelect
     },
     options?: Options<never, ThrowOnError>,
   ) {
diff --git a/packages/sdk/js/src/v2/gen/types.gen.ts b/packages/sdk/js/src/v2/gen/types.gen.ts
index fb3be8208ac..09502bc1f56 100644
--- a/packages/sdk/js/src/v2/gen/types.gen.ts
+++ b/packages/sdk/js/src/v2/gen/types.gen.ts
@@ -565,6 +565,13 @@ export type EventTuiPromptAppend = {
   }
 }
 
+export type EventTuiMcpRefresh = {
+  type: "tui.mcp.refresh"
+  properties: {
+    [key: string]: unknown
+  }
+}
+
 export type EventTuiCommandExecute = {
   type: "tui.command.execute"
   properties: {
@@ -792,6 +799,7 @@ export type Event =
   | EventFileEdited
   | EventTodoUpdated
   | EventTuiPromptAppend
+  | EventTuiMcpRefresh
   | EventTuiCommandExecute
   | EventTuiToastShow
   | EventTuiSessionSelect
@@ -4441,7 +4449,7 @@ export type TuiShowToastResponses = {
 export type TuiShowToastResponse = TuiShowToastResponses[keyof TuiShowToastResponses]
 
 export type TuiPublishData = {
-  body?: EventTuiPromptAppend | EventTuiCommandExecute | EventTuiToastShow | EventTuiSessionSelect
+  body?: EventTuiPromptAppend | EventTuiMcpRefresh | EventTuiCommandExecute | EventTuiToastShow | EventTuiSessionSelect
   path?: never
   query?: {
     directory?: string