feat: add native skill tool with permission system (#5930)

Co-authored-by: Dax Raad <d@ironbay.co>

packages/opencode/src/cli/cmd/debug/skill.ts

@@ -0,0 +1,15 @@
+import { EOL } from "os"
+import { Skill } from "../../../skill"
+import { bootstrap } from "../../bootstrap"
+import { cmd } from "../cmd"
+
+export const SkillCommand = cmd({
+  command: "skill",
+  builder: (yargs) => yargs,
+  async handler() {
+    await bootstrap(process.cwd(), async () => {
+      const skills = await Skill.all()
+      process.stdout.write(JSON.stringify(skills, null, 2) + EOL)
+    })
+  },
+})