feat: Add Qwen Code support

- Add Qwen Code target for converting Claude Code plugins
- Implement claude-to-qwen converter with agent/command/skill mapping
- Write qwen-extension.json config with MCP servers and settings
- Generate QWEN.md context file with plugin documentation
- Support nested commands with colon separator (workflows:plan)
- Extract MCP environment placeholders as settings
- Add --to qwen and --qwen-home CLI options
- Document Qwen installation in README

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

src/targets/index.ts

@@ -6,6 +6,7 @@ import type { PiBundle } from "../types/pi"
 import type { CopilotBundle } from "../types/copilot"
 import type { GeminiBundle } from "../types/gemini"
 import type { KiroBundle } from "../types/kiro"
+import type { QwenBundle } from "../types/qwen"
 import { convertClaudeToOpenCode, type ClaudeToOpenCodeOptions } from "../converters/claude-to-opencode"
 import { convertClaudeToCodex } from "../converters/claude-to-codex"
 import { convertClaudeToDroid } from "../converters/claude-to-droid"
@@ -13,6 +14,7 @@ import { convertClaudeToPi } from "../converters/claude-to-pi"
 import { convertClaudeToCopilot } from "../converters/claude-to-copilot"
 import { convertClaudeToGemini } from "../converters/claude-to-gemini"
 import { convertClaudeToKiro } from "../converters/claude-to-kiro"
+import { convertClaudeToQwen, type ClaudeToQwenOptions } from "../converters/claude-to-qwen"
 import { writeOpenCodeBundle } from "./opencode"
 import { writeCodexBundle } from "./codex"
 import { writeDroidBundle } from "./droid"
@@ -20,6 +22,7 @@ import { writePiBundle } from "./pi"
 import { writeCopilotBundle } from "./copilot"
 import { writeGeminiBundle } from "./gemini"
 import { writeKiroBundle } from "./kiro"
+import { writeQwenBundle } from "./qwen"
 
 export type TargetHandler<TBundle = unknown> = {
   name: string
@@ -71,4 +74,10 @@ export const targets: Record<string, TargetHandler> = {
     convert: convertClaudeToKiro as TargetHandler<KiroBundle>["convert"],
     write: writeKiroBundle as TargetHandler<KiroBundle>["write"],
   },
+  qwen: {
+    name: "qwen",
+    implemented: true,
+    convert: convertClaudeToQwen as TargetHandler<QwenBundle>["convert"],
+    write: writeQwenBundle as TargetHandler<QwenBundle>["write"],
+  },
 }

src/targets/qwen.ts

@@ -0,0 +1,81 @@
+import path from "path"
+import { backupFile, copyDir, ensureDir, writeJson, writeText } from "../utils/files"
+import type { QwenBundle, QwenExtensionConfig } from "../types/qwen"
+
+export async function writeQwenBundle(outputRoot: string, bundle: QwenBundle): Promise<void> {
+  const qwenPaths = resolveQwenPaths(outputRoot)
+  await ensureDir(qwenPaths.root)
+
+  // Write qwen-extension.json config
+  const configPath = qwenPaths.configPath
+  const backupPath = await backupFile(configPath)
+  if (backupPath) {
+    console.log(`Backed up existing config to ${backupPath}`)
+  }
+  await writeJson(configPath, bundle.config)
+
+  // Write context file (QWEN.md)
+  if (bundle.contextFile) {
+    await writeText(qwenPaths.contextPath, bundle.contextFile + "\n")
+  }
+
+  // Write agents
+  const agentsDir = qwenPaths.agentsDir
+  await ensureDir(agentsDir)
+  for (const agent of bundle.agents) {
+    const ext = agent.format === "yaml" ? "yaml" : "md"
+    await writeText(path.join(agentsDir, `${agent.name}.${ext}`), agent.content + "\n")
+  }
+
+  // Write commands
+  const commandsDir = qwenPaths.commandsDir
+  await ensureDir(commandsDir)
+  for (const commandFile of bundle.commandFiles) {
+    // Support nested commands with colon separator
+    const parts = commandFile.name.split(":")
+    if (parts.length > 1) {
+      const nestedDir = path.join(commandsDir, ...parts.slice(0, -1))
+      await ensureDir(nestedDir)
+      await writeText(path.join(nestedDir, `${parts[parts.length - 1]}.md`), commandFile.content + "\n")
+    } else {
+      await writeText(path.join(commandsDir, `${commandFile.name}.md`), commandFile.content + "\n")
+    }
+  }
+
+  // Copy skills
+  if (bundle.skillDirs.length > 0) {
+    const skillsRoot = qwenPaths.skillsDir
+    await ensureDir(skillsRoot)
+    for (const skill of bundle.skillDirs) {
+      await copyDir(skill.sourceDir, path.join(skillsRoot, skill.name))
+    }
+  }
+}
+
+function resolveQwenPaths(outputRoot: string) {
+  const base = path.basename(outputRoot)
+  // Global install: ~/.qwen/extensions/<extension-name>
+  // Project install: .qwen/extensions/<extension-name> or <extension-name> at root
+  // If the output root already ends with "extensions" or contains ".qwen/extensions", write directly
+  if (base === "extensions" || outputRoot.includes(".qwen/extensions")) {
+    return {
+      root: outputRoot,
+      configPath: path.join(outputRoot, "qwen-extension.json"),
+      contextPath: path.join(outputRoot, "QWEN.md"),
+      agentsDir: path.join(outputRoot, "agents"),
+      commandsDir: path.join(outputRoot, "commands"),
+      skillsDir: path.join(outputRoot, "skills"),
+    }
+  }
+
+  // Custom output directory - write directly to the output root (not nested)
+  // This is for project-level installs like ./my-extension
+  return {
+    root: outputRoot,
+    configPath: path.join(outputRoot, "qwen-extension.json"),
+    contextPath: path.join(outputRoot, "QWEN.md"),
+    agentsDir: path.join(outputRoot, "agents"),
+    commandsDir: path.join(outputRoot, "commands"),
+    skillsDir: path.join(outputRoot, "skills"),
+  }
+}