feat(module): add agent skills installation

packages/nuxi/src/commands/module/_skills.ts

@@ -0,0 +1,85 @@
+import { spinner } from '@clack/prompts'
+import { join } from 'pathe'
+import { x } from 'tinyexec'
+
+// Types from @nuxt/schema (PR 1) - defined locally until schema is updated
+interface ModuleAgentSkillsConfig {
+  url: string
+  skills?: string[]
+}
+
+interface ModuleAgentsConfig {
+  skills?: ModuleAgentSkillsConfig
+}
+
+interface ModuleMeta {
+  name?: string
+  agents?: ModuleAgentsConfig
+}
+
+export interface ModuleSkillInfo {
+  url: string
+  skills?: string[]
+  moduleName: string
+}
+
+export async function detectModuleSkills(moduleNames: string[], cwd: string): Promise<ModuleSkillInfo[]> {
+  const result: ModuleSkillInfo[] = []
+
+  for (const pkgName of moduleNames) {
+    const meta = await getModuleMeta(pkgName, cwd)
+    if (meta?.agents?.skills?.url) {
+      result.push({
+        url: meta.agents.skills.url,
+        skills: meta.agents.skills.skills,
+        moduleName: pkgName,
+      })
+    }
+  }
+  return result
+}
+
+async function getModuleMeta(pkgName: string, cwd: string): Promise<ModuleMeta | null> {
+  try {
+    const modulePath = join(cwd, 'node_modules', pkgName)
+    const mod = await import(modulePath)
+    return await mod?.default?.getMeta?.()
+  }
+  catch {
+    return null
+  }
+}
+
+export async function installSkills(infos: ModuleSkillInfo[], cwd: string): Promise<void> {
+  for (const info of infos) {
+    const skills = info.skills ?? []
+    const label = skills.length > 0 ? `Installing ${skills.join(', ')}...` : `Installing skills from ${info.url}...`
+
+    const s = spinner()
+    s.start(label)
+
+    try {
+      const args = ['skills', 'add', info.url, '-y']
+      if (skills.length > 0) {
+        args.push('--skill', ...skills)
+      }
+
+      await x('npx', args, {
+        nodeOptions: { cwd, stdio: 'pipe' },
+      })
+
+      s.stop('Installed to detected agents')
+    }
+    catch (error: unknown) {
+      const msg = error instanceof Error ? error.message : String(error)
+      s.stop('Failed to install skills')
+      console.warn(`Skill installation failed: ${msg}`)
+    }
+  }
+}
+
+export function getSkillNames(infos: ModuleSkillInfo[]): string {
+  return infos
+    .flatMap(i => i.skills?.length ? i.skills : ['all'])
+    .join(', ')
+}

packages/nuxi/src/commands/module/add.ts

@@ -8,7 +8,7 @@ import { homedir } from 'node:os'
 import { join } from 'node:path'
 
 import process from 'node:process'
-import { cancel, confirm, isCancel, select } from '@clack/prompts'
+import { cancel, confirm, isCancel, select, spinner } from '@clack/prompts'
 import { updateConfig } from 'c12/update'
 import { defineCommand } from 'citty'
 import { colors } from 'consola/utils'
@@ -25,6 +25,7 @@ import { relativeToProcess } from '../../utils/paths'
 import { getNuxtVersion } from '../../utils/versions'
 import { cwdArgs, logLevelArgs } from '../_shared'
 import prepareCommand from '../prepare'
+import { detectModuleSkills, getSkillNames, installSkills } from './_skills'
 import { checkNuxtCompatibility, fetchModules, getRegistryFromContent } from './_utils'
 
 interface RegistryMeta {
@@ -101,6 +102,27 @@ export default defineCommand({
 
     await addModules(resolvedModules, { ...ctx.args, cwd }, projectPkg)
 
+    // Check for agent skills
+    if (!ctx.args.skipInstall) {
+      const moduleNames = resolvedModules.map(m => m.pkgName)
+      const checkSpinner = spinner()
+      checkSpinner.start('Checking for agent skills...')
+      const skillInfos = await detectModuleSkills(moduleNames, cwd)
+      checkSpinner.stop(skillInfos.length > 0 ? `Found ${skillInfos.length} skill(s)` : 'No skills found')
+
+      if (skillInfos.length > 0) {
+        const skillNames = getSkillNames(skillInfos)
+        const shouldInstall = await confirm({
+          message: `Install agent skill(s): ${skillNames}?`,
+          initialValue: true,
+        })
+
+        if (!isCancel(shouldInstall) && shouldInstall) {
+          await installSkills(skillInfos, cwd)
+        }
+      }
+    }
+
     // Run prepare command if install is not skipped
     if (!ctx.args.skipInstall) {
       const args = Object.entries(ctx.args).filter(([k]) => k in cwdArgs || k in logLevelArgs).map(([k, v]) => `--${k}=${v}`)