feat(plugin): expose app metadata (#38179)

packages/core/src/mcp/client.ts

@@ -12,6 +12,7 @@ import {
   ElicitationCompleteNotificationSchema,
   ElicitRequestSchema,
   GetPromptResultSchema,
+  type Implementation,
   type ElicitRequestFormParams,
   type ElicitRequestParams,
   type ElicitRequestURLParams,
@@ -29,7 +30,6 @@ import {
 } from "@modelcontextprotocol/sdk/types.js"
 import { Cause, Effect, Exit, Schema } from "effect"
 import { ConfigMCP } from "../config/mcp"
-import { InstallationVersion } from "@opencode-ai/util/installation/version"
 
 const DEFAULT_STARTUP_TIMEOUT = 30_000
 const DEFAULT_CATALOG_TIMEOUT = 30_000
@@ -185,6 +185,7 @@ export const connect = Effect.fnUntraced(function* (
   // stored token (and a no-op redirect) surfaces an UnauthorizedError, which we map to needs_auth.
   authProvider?: OAuthClientProvider,
   elicitation?: ElicitationHandler,
+  clientInfo: Implementation = { name: "opencode", version: "unknown" },
 ) {
   const transport: Transport = yield* Effect.gen(function* () {
     if (config.type === "local") {
@@ -209,7 +210,7 @@ export const connect = Effect.fnUntraced(function* (
     })
   })
   const client = new Client(
-    { name: "opencode", version: InstallationVersion },
+    clientInfo,
     {
       capabilities: {
         ...(elicitation ? { elicitation: { form: { applyDefaults: true }, url: {} } } : {}),

packages/core/src/mcp/index.ts

@@ -157,7 +157,17 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/v2/MCP") {}
 
-export const layer = Layer.effect(
+export const Options = Schema.Struct({
+  clientInfo: Schema.optional(
+    Schema.Struct({
+      name: Schema.String,
+      version: Schema.String,
+    }),
+  ),
+})
+export type Options = typeof Options.Type
+
+export const layer = (options?: Options) => Layer.effect(
   Service,
   Effect.gen(function* () {
     const config = yield* Config.Service
@@ -498,7 +508,14 @@ export const layer = Layer.effect(
         const authProvider = yield* connectProvider(entry)
         // List tools as part of connect so a failure here marks the server failed rather than
         // leaving it connected with a silently empty tool list and no path to recover.
-        const result = yield* MCPClient.connect(name, entry.config, location.directory, authProvider, elicitation).pipe(
+        const result = yield* MCPClient.connect(
+          name,
+          entry.config,
+          location.directory,
+          authProvider,
+          elicitation,
+          options?.clientInfo,
+        ).pipe(
           Effect.flatMap((connection) => connection.tools().pipe(Effect.map((tools) => ({ connection, tools })))),
           Scope.provide(scope),
           Effect.exit,
@@ -772,11 +789,15 @@ export const layer = Layer.effect(
   }),
 )
 
-export const node = makeLocationNode({
-  service: Service,
-  layer,
-  deps: [Config.node, Location.node, EventV2.node, Form.node, Integration.node, Credential.node],
-})
+export function configured(options?: Options) {
+  return makeLocationNode({
+    service: Service,
+    layer: layer(options),
+    deps: [Config.node, Location.node, EventV2.node, Form.node, Integration.node, Credential.node],
+  })
+}
+
+export const node = configured()
 
 // Schema `optional` strips undefined-valued properties on encode, so fields can assign
 // optional properties directly instead of conditionally spreading them.