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

packages/core/test/plugin/host.ts

@@ -19,6 +19,7 @@ type Overrides = Partial<Omit<PluginContext, "options" | "session">> & {
 
 export function host(overrides: Overrides = {}): PluginContext {
   return {
+    app: overrides.app ?? { name: "test", version: "test", channel: "test" },
     options: {},
     agent: overrides.agent ?? {
       get: () => Effect.die("unused agent.get"),

packages/core/test/plugin/provider-github-copilot.test.ts

@@ -1,4 +1,5 @@
 import { AISDK } from "@opencode-ai/core/aisdk"
+import { App } from "@opencode-ai/core/app"
 import { describe, expect } from "bun:test"
 import { Effect } from "effect"
 import { Catalog } from "@opencode-ai/core/catalog"
@@ -62,6 +63,7 @@ describe("GithubCopilotPlugin", () => {
           return Response.json({ ok: true })
         },
         false,
+        App.make({ name: "test", version: "1.2.3", channel: "beta" }),
       )
       yield* Effect.promise(() =>
         send("https://api.githubcopilot.com/chat/completions", {
@@ -77,6 +79,7 @@ describe("GithubCopilotPlugin", () => {
       expect(requests[0]?.get("x-initiator")).toBe("user")
       expect(requests[0]?.get("copilot-vision-request")).toBe("true")
       expect(requests[0]?.get("x-github-api-version")).toBe("2026-06-01")
+      expect(requests[0]?.get("user-agent")).toBe("opencode/beta/1.2.3/test")
     }),
   )
 

packages/core/test/plugin/skill.test.ts

@@ -3,7 +3,6 @@ import { NodeFileSystem } from "@effect/platform-node"
 import { Config } from "@opencode-ai/core/config"
 import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
 import { FSUtil } from "@opencode-ai/util/fs-util"
-import { InstallationVersion } from "@opencode-ai/util/installation/version"
 import { Location } from "@opencode-ai/core/location"
 import { Effect } from "effect"
 import { SkillPlugin } from "@opencode-ai/core/plugin/skill"
@@ -21,6 +20,7 @@ describe("SkillPlugin.Plugin", () => {
       const skill = yield* SkillV2.Service
       yield* SkillPlugin.Plugin.effect(
         host({
+          app: { name: "test", version: "1.2.3", channel: "beta" },
           skill: {
             list: () => Effect.die("unused skill.list"),
             transform: skill.transform,
@@ -54,7 +54,8 @@ describe("SkillPlugin.Plugin", () => {
         }),
       )
       expect(report?.slash).toBe(true)
-      expect(report?.content).toContain(`- opencode version: ${InstallationVersion}`)
+      expect(report?.content).toContain("- opencode version: 1.2.3")
+      expect(report?.content).toContain("- install/channel: beta")
     }),
   )
 })