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

src/targets/codex.ts

@@ -1,6 +1,5 @@
-import { promises as fs } from "fs"
 import path from "path"
-import { backupFile, ensureDir, readText, writeText } from "../utils/files"
+import { backupFile, copySkillDir, ensureDir, writeText } from "../utils/files"
 import type { CodexBundle } from "../types/codex"
 import type { ClaudeMcpServer } from "../types/claude"
 import { transformContentForCodex } from "../utils/codex-content"
@@ -19,10 +18,12 @@ export async function writeCodexBundle(outputRoot: string, bundle: CodexBundle):
   if (bundle.skillDirs.length > 0) {
     const skillsRoot = path.join(codexRoot, "skills")
     for (const skill of bundle.skillDirs) {
-      await copyCodexSkillDir(
+      await copySkillDir(
         skill.sourceDir,
         path.join(skillsRoot, skill.name),
-        bundle.invocationTargets,
+        (content) => transformContentForCodex(content, bundle.invocationTargets, {
+          unknownSlashBehavior: "preserve",
+        }),
       )
     }
   }
@@ -45,41 +46,6 @@ export async function writeCodexBundle(outputRoot: string, bundle: CodexBundle):
   }
 }
 
-async function copyCodexSkillDir(
-  sourceDir: string,
-  targetDir: string,
-  invocationTargets?: CodexBundle["invocationTargets"],
-): Promise<void> {
-  await ensureDir(targetDir)
-  const entries = await fs.readdir(sourceDir, { withFileTypes: true })
-
-  for (const entry of entries) {
-    const sourcePath = path.join(sourceDir, entry.name)
-    const targetPath = path.join(targetDir, entry.name)
-
-    if (entry.isDirectory()) {
-      await copyCodexSkillDir(sourcePath, targetPath, invocationTargets)
-      continue
-    }
-
-    if (!entry.isFile()) continue
-
-    if (entry.name === "SKILL.md") {
-      const content = await readText(sourcePath)
-      await writeText(
-        targetPath,
-        transformContentForCodex(content, invocationTargets, {
-          unknownSlashBehavior: "preserve",
-        }),
-      )
-      continue
-    }
-
-    await ensureDir(path.dirname(targetPath))
-    await fs.copyFile(sourcePath, targetPath)
-  }
-}
-
 function resolveCodexRoot(outputRoot: string): string {
   return path.basename(outputRoot) === ".codex" ? outputRoot : path.join(outputRoot, ".codex")
 }