fix: wire host config.skills.paths into command skill discovery

Mirrors the agent-config-handler change: command-config-handler now also discovers skills from host config.skills.paths set by other plugins, making them available as slash commands.

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

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

src/plugin-handlers/command-config-handler.test.ts

@@ -157,4 +157,37 @@ describe("applyCommandConfig", () => {
     const commandConfig = config.command as Record<string, { agent?: string }>;
     expect(commandConfig["start-work"]?.agent).toBe(getAgentListDisplayName("atlas"));
   });
+
+  test("includes host config skills declared in config.skills.paths by other plugins", async () => {
+    // given - second call to discoverConfigSourceSkills returns host config skills
+    discoverConfigSourceSkillsSpy
+      .mockResolvedValueOnce([])
+      .mockResolvedValueOnce([
+        {
+          name: "host-config-skill",
+          definition: {
+            name: "host-config-skill",
+            description: "Host config skill",
+            template: "template",
+          },
+          scope: "config",
+        },
+      ]);
+    const config: Record<string, unknown> = {
+      command: {},
+      skills: { paths: ["/host/skills"] },
+    };
+
+    // when
+    await applyCommandConfig({
+      config,
+      pluginConfig: createPluginConfig(),
+      ctx: { directory: "/tmp" },
+      pluginComponents: createPluginComponents(),
+    });
+
+    // then
+    const commandConfig = config.command as Record<string, { description?: string }>;
+    expect(commandConfig["host-config-skill"]?.description).toContain("Host config skill");
+  });
 });

src/plugin-handlers/command-config-handler.ts

@@ -26,6 +26,7 @@ import {
   log,
 } from "../shared";
 import type { PluginComponents } from "./plugin-components-loader";
+import { adaptHostSkillConfig } from "../shared/host-skill-config";
 
 export async function applyCommandConfig(params: {
   config: Record<string, unknown>;
@@ -47,8 +48,10 @@ export async function applyCommandConfig(params: {
     log(getSkillPluginConflictWarning(externalSkillPlugin.pluginName));
   }
 
+  const hostSkillConfig = adaptHostSkillConfig(params.config.skills);
   const [
     configSourceSkills,
+    hostConfigSkills,
     userCommands,
     projectCommands,
     opencodeGlobalCommands,
@@ -64,6 +67,10 @@ export async function applyCommandConfig(params: {
       config: params.pluginConfig.skills,
       configDir: params.ctx.directory,
     }),
+    discoverConfigSourceSkills({
+      config: hostSkillConfig,
+      configDir: params.ctx.directory,
+    }),
     includeClaudeCommands ? loadUserCommands() : Promise.resolve({}),
     includeClaudeCommands ? loadProjectCommands(params.ctx.directory) : Promise.resolve({}),
     loadOpencodeGlobalCommands(),
@@ -79,6 +86,7 @@ export async function applyCommandConfig(params: {
   params.config.command = {
     ...builtinCommands,
     ...skillsToCommandDefinitionRecord(configSourceSkills),
+    ...skillsToCommandDefinitionRecord(hostConfigSkills),
     ...userCommands,
     ...userSkills,
     ...globalAgentsSkills,