refactor(flags): migrate claude code skills flag to RuntimeFlags (#27605)

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

@@ -1,7 +1,13 @@
 import { describe, expect } from "bun:test"
 import { Effect, Layer } from "effect"
 import { Skill } from "../../src/skill"
+import { Discovery } from "../../src/skill/discovery"
+import { RuntimeFlags } from "../../src/effect/runtime-flags"
+import { Bus } from "../../src/bus"
+import { Config } from "../../src/config/config"
 import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { AppFileSystem } from "@opencode-ai/core/filesystem"
+import { Global } from "@opencode-ai/core/global"
 import { provideInstance, provideTmpdirInstance, tmpdir } from "../fixture/fixture"
 import { testEffect } from "../lib/effect"
 import path from "path"
@@ -10,6 +16,19 @@ import fs from "fs/promises"
 const node = CrossSpawnSpawner.defaultLayer
 
 const it = testEffect(Layer.mergeAll(Skill.defaultLayer, node))
+const itWithoutClaudeCodeSkills = testEffect(
+  Layer.mergeAll(
+    Skill.layer.pipe(
+      Layer.provide(Discovery.defaultLayer),
+      Layer.provide(Config.defaultLayer),
+      Layer.provide(Bus.layer),
+      Layer.provide(AppFileSystem.defaultLayer),
+      Layer.provide(Global.layer),
+      Layer.provide(RuntimeFlags.layer({ disableClaudeCodeSkills: true })),
+    ),
+    node,
+  ),
+)
 
 async function createGlobalSkill(homeDir: string) {
   const skillDir = path.join(homeDir, ".claude", "skills", "global-test-skill")
@@ -364,6 +383,43 @@ description: A skill in the .agents/skills directory.
     ),
   )
 
+  itWithoutClaudeCodeSkills.live("skips Claude Code skills when disabled", () =>
+    provideTmpdirInstance(
+      (dir) =>
+        Effect.gen(function* () {
+          yield* Effect.promise(() =>
+            Promise.all([
+              Bun.write(
+                path.join(dir, ".claude", "skills", "claude-skill", "SKILL.md"),
+                `---
+name: claude-skill
+description: A skill in the .claude/skills directory.
+---
+
+# Claude Skill
+`,
+              ),
+              Bun.write(
+                path.join(dir, ".agents", "skills", "agent-skill", "SKILL.md"),
+                `---
+name: agent-skill
+description: A skill in the .agents/skills directory.
+---
+
+# Agent Skill
+`,
+              ),
+            ]),
+          )
+
+          const skill = yield* Skill.Service
+          const list = (yield* skill.all()).filter((s) => s.location !== "<built-in>")
+          expect(list.map((s) => s.name)).toEqual(["agent-skill"])
+        }),
+      { git: true },
+    ),
+  )
+
   it.live("properly resolves directories that skills live in", () =>
     provideTmpdirInstance(
       (dir) =>