feat: default auto_mcp_discovery to true (#345)

* feat: default auto_mcp_discovery to true in config schema

The runtime behavior already defaulted to enabled (discovery runs unless
explicitly set to false), but the Zod schema used `.optional()` which
left the field as `undefined`.  Switch to `.default(true)` so the schema
matches the actual runtime default and serialized configs show the
correct value.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: add auto_mcp_discovery to test experimental configs

The .default(true) change made the field required in Zod's output type,
so test configs that construct experimental objects need the field.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: remove explicit auto_mcp_discovery: false from project config

No longer needed since the schema now defaults to true.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: kulvirgit

.opencode/opencode.jsonc

@@ -15,9 +15,4 @@
     "github-triage": false,
     "github-pr-search": false,
   },
-  // altimate_change start — disable auto MCP discovery for altimate-code
-  "experimental": {
-    "auto_mcp_discovery": false,
-  },
-  // altimate_change end
 }

packages/opencode/src/config/config.ts

@@ -1294,8 +1294,8 @@ export namespace Config {
           // altimate_change start - auto MCP discovery toggle
           auto_mcp_discovery: z
             .boolean()
-            .optional()
-            .describe("Auto-discover MCP servers from VS Code, Claude Code, Copilot, and Gemini configs at startup (default: true). Set to false to disable."),
+            .default(true)
+            .describe("Auto-discover MCP servers from VS Code, Claude Code, Copilot, and Gemini configs at startup. Set to false to disable."),
           // altimate_change end
         })
         .optional(),

packages/opencode/test/tool/skill.test.ts

@@ -189,6 +189,7 @@ Use this skill.
       config: {
         experimental: {
           env_fingerprint_skill_selection: false,
+          auto_mcp_discovery: true,
         },
       },
       init: async (dir) => {
@@ -225,6 +226,7 @@ Use this skill.
       config: {
         experimental: {
           env_fingerprint_skill_selection: true,
+          auto_mcp_discovery: true,
         },
       },
       init: async (dir) => {