fix(call-omo-agent): enforce disabled_agents config (#1716)

## Summary
- Added disabled_agents parameter to createCallOmoAgent factory
- Check runs after ALLOWED_AGENTS validation, before agent execution
- Case-insensitive matching consistent with existing patterns
- Clear error message distinguishes 'disabled' from 'invalid agent type'
- Threaded disabledAgents config into tool factory from pluginConfig

## Changes
- tools.ts: Add disabledAgents parameter and validation check
- tool-registry.ts: Pass pluginConfig.disabled_agents to factory

src/plugin/tool-registry.ts

@@ -48,7 +48,7 @@ export function createToolRegistry(args: {
   const { ctx, pluginConfig, managers, skillContext, availableCategories } = args
 
   const backgroundTools = createBackgroundTools(managers.backgroundManager, ctx.client)
-  const callOmoAgent = createCallOmoAgent(ctx, managers.backgroundManager)
+  const callOmoAgent = createCallOmoAgent(ctx, managers.backgroundManager, pluginConfig.disabled_agents ?? [])
 
   const isMultimodalLookerEnabled = !(pluginConfig.disabled_agents ?? []).some(
     (agent) => agent.toLowerCase() === "multimodal-looker",

src/tools/call-omo-agent/tools.ts

@@ -8,7 +8,8 @@ import { executeSync } from "./sync-executor"
 
 export function createCallOmoAgent(
   ctx: PluginInput,
-  backgroundManager: BackgroundManager
+  backgroundManager: BackgroundManager,
+  disabledAgents: string[] = []
 ): ToolDefinition {
   const agentDescriptions = ALLOWED_AGENTS.map(
     (name) => `- ${name}: Specialized agent for ${name} tasks`
@@ -44,6 +45,11 @@ export function createCallOmoAgent(
       const normalizedAgent = args.subagent_type.toLowerCase() as AllowedAgentType
       args = { ...args, subagent_type: normalizedAgent }
 
+      // Check if agent is disabled
+      if (disabledAgents.some((disabled) => disabled.toLowerCase() === normalizedAgent)) {
+        return `Error: Agent "${normalizedAgent}" is disabled via disabled_agents configuration. Remove it from disabled_agents in your oh-my-opencode.json to use it.`
+      }
+
       if (args.run_in_background) {
         if (args.session_id) {
           return `Error: session_id is not supported in background mode. Use run_in_background=false to continue an existing session.`