From e96442310cad3fff0158d432e6ce792fa580dbff Mon Sep 17 00:00:00 2001
From: Tyler Gannon <tyler@pagerguild.com>
Date: Mon, 17 Nov 2025 00:06:40 -0600
Subject: [PATCH] chore: replace z.union with z.enum for cleaner OpenAPI
 generation (#4394)

---
 packages/opencode/src/agent/agent.ts   | 2 +-
 packages/opencode/src/config/config.ts | 4 ++--
 packages/opencode/src/server/server.ts | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/opencode/src/agent/agent.ts b/packages/opencode/src/agent/agent.ts
index 867bc0fe..740f67b7 100644
--- a/packages/opencode/src/agent/agent.ts
+++ b/packages/opencode/src/agent/agent.ts
@@ -12,7 +12,7 @@ export namespace Agent {
     .object({
       name: z.string(),
       description: z.string().optional(),
-      mode: z.union([z.literal("subagent"), z.literal("primary"), z.literal("all")]),
+      mode: z.enum(["subagent", "primary", "all"]),
       builtIn: z.boolean(),
       topP: z.number().optional(),
       temperature: z.number().optional(),
diff --git a/packages/opencode/src/config/config.ts b/packages/opencode/src/config/config.ts
index c7814721..51aa914a 100644
--- a/packages/opencode/src/config/config.ts
+++ b/packages/opencode/src/config/config.ts
@@ -337,7 +337,7 @@ export namespace Config {
   export const Mcp = z.discriminatedUnion("type", [McpLocal, McpRemote])
   export type Mcp = z.infer<typeof Mcp>
 
-  export const Permission = z.union([z.literal("ask"), z.literal("allow"), z.literal("deny")])
+  export const Permission = z.enum(["ask", "allow", "deny"])
   export type Permission = z.infer<typeof Permission>
 
   export const Command = z.object({
@@ -358,7 +358,7 @@ export namespace Config {
       tools: z.record(z.string(), z.boolean()).optional(),
       disable: z.boolean().optional(),
       description: z.string().optional().describe("Description of when to use the agent"),
-      mode: z.union([z.literal("subagent"), z.literal("primary"), z.literal("all")]).optional(),
+      mode: z.enum(["subagent", "primary", "all"]).optional(),
       color: z
         .string()
         .regex(/^#[0-9a-fA-F]{6}$/, "Invalid hex color format")
diff --git a/packages/opencode/src/server/server.ts b/packages/opencode/src/server/server.ts
index a4b2b170..9ed1cac6 100644
--- a/packages/opencode/src/server/server.ts
+++ b/packages/opencode/src/server/server.ts
@@ -50,7 +50,7 @@ const ERRORS = {
         schema: resolver(
           z
             .object({
-              data: z.any().nullable(),
+              data: z.any(),
               errors: z.array(z.record(z.string(), z.any())),
               success: z.literal(false),
             })