fix(cli): validate and detect OpenCode Go install settings

Reject invalid --opencode-go values during non-TUI installs and detect existing OpenCode Go usage from the generated oh-my-opencode config so updates preserve the right defaults.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/cli/config-manager/detect-current-config.ts

@@ -10,17 +10,30 @@ function detectProvidersFromOmoConfig(): {
   hasOpencodeZen: boolean
   hasZaiCodingPlan: boolean
   hasKimiForCoding: boolean
+  hasOpencodeGo: boolean
 } {
   const omoConfigPath = getOmoConfigPath()
   if (!existsSync(omoConfigPath)) {
-    return { hasOpenAI: true, hasOpencodeZen: true, hasZaiCodingPlan: false, hasKimiForCoding: false }
+    return {
+      hasOpenAI: true,
+      hasOpencodeZen: true,
+      hasZaiCodingPlan: false,
+      hasKimiForCoding: false,
+      hasOpencodeGo: false,
+    }
   }
 
   try {
     const content = readFileSync(omoConfigPath, "utf-8")
     const omoConfig = parseJsonc<Record<string, unknown>>(content)
     if (!omoConfig || typeof omoConfig !== "object") {
-      return { hasOpenAI: true, hasOpencodeZen: true, hasZaiCodingPlan: false, hasKimiForCoding: false }
+      return {
+        hasOpenAI: true,
+        hasOpencodeZen: true,
+        hasZaiCodingPlan: false,
+        hasKimiForCoding: false,
+        hasOpencodeGo: false,
+      }
     }
 
     const configStr = JSON.stringify(omoConfig)
@@ -28,10 +41,17 @@ function detectProvidersFromOmoConfig(): {
     const hasOpencodeZen = configStr.includes('"opencode/')
     const hasZaiCodingPlan = configStr.includes('"zai-coding-plan/')
     const hasKimiForCoding = configStr.includes('"kimi-for-coding/')
+    const hasOpencodeGo = configStr.includes('"opencode-go/')
 
-    return { hasOpenAI, hasOpencodeZen, hasZaiCodingPlan, hasKimiForCoding }
+    return { hasOpenAI, hasOpencodeZen, hasZaiCodingPlan, hasKimiForCoding, hasOpencodeGo }
   } catch {
-    return { hasOpenAI: true, hasOpencodeZen: true, hasZaiCodingPlan: false, hasKimiForCoding: false }
+    return {
+      hasOpenAI: true,
+      hasOpencodeZen: true,
+      hasZaiCodingPlan: false,
+      hasKimiForCoding: false,
+      hasOpencodeGo: false,
+    }
   }
 }
 
@@ -72,11 +92,12 @@ result.isInstalled = plugins.some((p) => p.startsWith(OLD_PACKAGE_NAME) || p.sta
   const providers = openCodeConfig.provider as Record<string, unknown> | undefined
   result.hasGemini = providers ? "google" in providers : false
 
-  const { hasOpenAI, hasOpencodeZen, hasZaiCodingPlan, hasKimiForCoding } = detectProvidersFromOmoConfig()
+  const { hasOpenAI, hasOpencodeZen, hasZaiCodingPlan, hasKimiForCoding, hasOpencodeGo } = detectProvidersFromOmoConfig()
   result.hasOpenAI = hasOpenAI
   result.hasOpencodeZen = hasOpencodeZen
   result.hasZaiCodingPlan = hasZaiCodingPlan
   result.hasKimiForCoding = hasKimiForCoding
+  result.hasOpencodeGo = hasOpencodeGo
 
   return result
 }

src/cli/config-manager/plugin-detection.test.ts

@@ -10,10 +10,12 @@ import { addPluginToOpenCodeConfig } from "./add-plugin-to-opencode-config"
 describe("detectCurrentConfig - dual name detection", () => {
   let testConfigDir = ""
   let testConfigPath = ""
+  let testOmoConfigPath = ""
 
   beforeEach(() => {
     testConfigDir = join(tmpdir(), `omo-detect-config-${Date.now()}-${Math.random().toString(36).slice(2)}`)
     testConfigPath = join(testConfigDir, "opencode.json")
+    testOmoConfigPath = join(testConfigDir, "oh-my-opencode.json")
 
     mkdirSync(testConfigDir, { recursive: true })
     process.env.OPENCODE_CONFIG_DIR = testConfigDir
@@ -85,6 +87,23 @@ describe("detectCurrentConfig - dual name detection", () => {
     // then
     expect(result.isInstalled).toBe(false)
   })
+
+  it("detects OpenCode Go from the existing omo config", () => {
+    // given
+    writeFileSync(testConfigPath, JSON.stringify({ plugin: ["oh-my-openagent"] }, null, 2) + "\n", "utf-8")
+    writeFileSync(
+      testOmoConfigPath,
+      JSON.stringify({ agents: { atlas: { model: "opencode-go/kimi-k2.5" } } }, null, 2) + "\n",
+      "utf-8",
+    )
+
+    // when
+    const result = detectCurrentConfig()
+
+    // then
+    expect(result.isInstalled).toBe(true)
+    expect(result.hasOpencodeGo).toBe(true)
+  })
 })
 
 describe("addPluginToOpenCodeConfig - dual name detection", () => {

src/cli/install-validators.test.ts

@@ -0,0 +1,34 @@
+import { describe, expect, test } from "bun:test"
+
+import { validateNonTuiArgs } from "./install-validators"
+import type { InstallArgs } from "./types"
+
+function createArgs(overrides: Partial<InstallArgs> = {}): InstallArgs {
+  return {
+    tui: false,
+    claude: "no",
+    openai: "no",
+    gemini: "no",
+    copilot: "no",
+    opencodeZen: "no",
+    zaiCodingPlan: "no",
+    kimiForCoding: "no",
+    opencodeGo: "no",
+    skipAuth: false,
+    ...overrides,
+  }
+}
+
+describe("validateNonTuiArgs", () => {
+  test("rejects invalid --opencode-go values", () => {
+    // #given
+    const args = createArgs({ opencodeGo: "maybe" as InstallArgs["opencodeGo"] })
+
+    // #when
+    const result = validateNonTuiArgs(args)
+
+    // #then
+    expect(result.valid).toBe(false)
+    expect(result.errors).toContain("Invalid --opencode-go value: maybe (expected: no, yes)")
+  })
+})

src/cli/install-validators.ts

@@ -17,6 +17,8 @@ export const SYMBOLS = {
   star: color.yellow("*"),
 }
 
+const ANSI_COLOR_PATTERN = new RegExp("\u001b\\[[0-9;]*m", "g")
+
 function formatProvider(name: string, enabled: boolean, detail?: string): string {
   const status = enabled ? SYMBOLS.check : color.dim("○")
   const label = enabled ? color.white(name) : color.dim(name)
@@ -83,7 +85,7 @@ export function printBox(content: string, title?: string): void {
   const lines = content.split("\n")
   const maxWidth =
     Math.max(
-      ...lines.map((line) => line.replace(/\x1b\[[0-9;]*m/g, "").length),
+      ...lines.map((line) => line.replace(ANSI_COLOR_PATTERN, "").length),
       title?.length ?? 0,
     ) + 4
   const border = color.dim("─".repeat(maxWidth))
@@ -101,7 +103,7 @@ export function printBox(content: string, title?: string): void {
   }
 
   for (const line of lines) {
-    const stripped = line.replace(/\x1b\[[0-9;]*m/g, "")
+    const stripped = line.replace(ANSI_COLOR_PATTERN, "")
     const padding = maxWidth - stripped.length
     console.log(color.dim("│") + ` ${line}${" ".repeat(padding - 1)}` + color.dim("│"))
   }
@@ -135,6 +137,10 @@ export function validateNonTuiArgs(args: InstallArgs): { valid: boolean; errors:
     errors.push(`Invalid --openai value: ${args.openai} (expected: no, yes)`)
   }
 
+  if (args.opencodeGo !== undefined && !["no", "yes"].includes(args.opencodeGo)) {
+    errors.push(`Invalid --opencode-go value: ${args.opencodeGo} (expected: no, yes)`)
+  }
+
   if (args.opencodeZen !== undefined && !["no", "yes"].includes(args.opencodeZen)) {
     errors.push(`Invalid --opencode-zen value: ${args.opencodeZen} (expected: no, yes)`)
   }