feat: fix skill transformation pipeline across all targets (#334)

tests/pi-writer.test.ts

@@ -50,6 +50,46 @@ describe("writePiBundle", () => {
     expect(agentsContent).toContain("MCPorter")
   })
 
+  test("transforms Task calls in copied SKILL.md files", async () => {
+    const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "pi-skill-transform-"))
+    const outputRoot = path.join(tempRoot, ".pi")
+    const sourceSkillDir = path.join(tempRoot, "source-skill")
+    await fs.mkdir(sourceSkillDir, { recursive: true })
+    await fs.writeFile(
+      path.join(sourceSkillDir, "SKILL.md"),
+      `---
+name: ce:plan
+description: Planning workflow
+---
+
+Run these research agents:
+
+- Task compound-engineering:research:repo-research-analyst(feature_description)
+- Task compound-engineering:research:learnings-researcher(feature_description)
+- Task compound-engineering:review:code-simplicity-reviewer()
+`,
+    )
+
+    const bundle: PiBundle = {
+      prompts: [],
+      skillDirs: [{ name: "ce:plan", sourceDir: sourceSkillDir }],
+      generatedSkills: [],
+      extensions: [],
+    }
+
+    await writePiBundle(outputRoot, bundle)
+
+    const installedSkill = await fs.readFile(
+      path.join(outputRoot, "skills", "ce:plan", "SKILL.md"),
+      "utf8",
+    )
+
+    expect(installedSkill).toContain('Run subagent with agent="repo-research-analyst" and task="feature_description".')
+    expect(installedSkill).toContain('Run subagent with agent="learnings-researcher" and task="feature_description".')
+    expect(installedSkill).toContain('Run subagent with agent="code-simplicity-reviewer".')
+    expect(installedSkill).not.toContain("Task compound-engineering:")
+  })
+
   test("writes to ~/.pi/agent style roots without nesting under .pi", async () => {
     const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "pi-agent-root-"))
     const outputRoot = path.join(tempRoot, "agent")