feat(pgpm): install skills from .boilerplate.json after scaffold

pgpm/cli/src/commands/init/index.ts

@@ -1,7 +1,9 @@
+import { execSync } from 'child_process';
 import fs from 'fs';
 import path from 'path';
 
 import {
+  BoilerplateSkill,
   DEFAULT_TEMPLATE_REPO,
   DEFAULT_TEMPLATE_TOOL_NAME,
   inspectTemplate,
@@ -275,6 +277,38 @@ interface InitContext {
   createWorkspace?: boolean;
 }
 
+function installSkills(skills: BoilerplateSkill[], cwd: string): void {
+  const failed: string[] = [];
+
+  for (const entry of skills) {
+    const source = entry.source.includes('://')
+      ? entry.source
+      : `https://github.com/${entry.source}`;
+
+    for (const skill of entry.skills) {
+      const cmd = `npx --yes skills add ${source} --skill ${skill} --yes`;
+      try {
+        execSync(cmd, {
+          cwd,
+          stdio: ['pipe', 'inherit', 'inherit'],
+          timeout: 120_000,
+        });
+      } catch {
+        failed.push(`  npx skills add ${source} --skill ${skill}`);
+      }
+    }
+  }
+
+  if (failed.length > 0) {
+    process.stdout.write('\n⚠️  Some skills could not be installed automatically.\n');
+    process.stdout.write('Run the following commands manually:\n\n');
+    for (const cmd of failed) {
+      process.stdout.write(`${cmd}\n`);
+    }
+    process.stdout.write('\n');
+  }
+}
+
 async function handleWorkspaceInit(
   argv: Partial<Record<string, any>>,
   prompter: Inquirerer,
@@ -329,6 +363,19 @@ async function handleWorkspaceInit(
     process.stdout.write('\n');
   }
 
+  // Install skills declared in .boilerplate.json
+  const templateInfo = inspectTemplate({
+    fromPath: ctx.fromPath,
+    templateRepo: ctx.templateRepo,
+    branch: ctx.branch,
+    dir: ctx.dir,
+    cwd: ctx.cwd,
+  });
+  if (templateInfo.config?.skills?.length) {
+    process.stdout.write('\n📦 Installing skills...\n\n');
+    installSkills(templateInfo.config.skills, targetPath);
+  }
+
   const relPath = path.relative(process.cwd(), targetPath);
   process.stdout.write(`\n✨ Enjoy!\n\ncd ./${relPath}\n`);
 
@@ -620,6 +667,20 @@ async function handleModuleInit(
     process.stdout.write('\n');
   }
 
+  // Install skills declared in .boilerplate.json
+  const moduleTemplateInfo = inspectTemplate({
+    fromPath: ctx.fromPath,
+    templateRepo: ctx.templateRepo,
+    branch: ctx.branch,
+    dir: ctx.dir,
+    cwd: ctx.cwd,
+  });
+  if (moduleTemplateInfo.config?.skills?.length) {
+    const skillsCwd = project.workspacePath || modulePath;
+    process.stdout.write('\n📦 Installing skills...\n\n');
+    installSkills(moduleTemplateInfo.config.skills, skillsCwd);
+  }
+
   const relPath = path.relative(process.cwd(), modulePath);
   process.stdout.write(`\n✨ Enjoy!\n\ncd ./${relPath}\n`);
 

pgpm/core/src/core/template-scaffold.ts

@@ -14,9 +14,15 @@ import type { Inquirerer, Question } from 'inquirerer';
 export type WorkspaceType = 'pgpm' | 'pnpm' | 'lerna' | 'npm' | false;
 
 /**
- * Extended BoilerplateConfig that adds workspace requirement field.
- * This field controls both workspace detection and whether pgpm-specific files are created.
+ * Declares a skill to install after scaffolding completes.
  */
+export interface BoilerplateSkill {
+  /** GitHub repository (org/repo format) */
+  source: string;
+  /** Skill name(s) to install from the source */
+  skills: string[];
+}
+
 export interface BoilerplateConfig extends GenomicBoilerplateConfig {
   /**
    * Specifies what type of workspace this template requires.
@@ -29,6 +35,13 @@ export interface BoilerplateConfig extends GenomicBoilerplateConfig {
    * Defaults to 'pgpm' for 'module' type (backward compatibility), false for others.
    */
   requiresWorkspace?: WorkspaceType;
+  /**
+   * Skills to install after scaffolding completes.
+   * Each entry specifies a source repository and skill names to install.
+   * Runs `npx skills add <source> --skill <name>` for each entry.
+   * Non-fatal: prints manual install commands on failure.
+   */
+  skills?: BoilerplateSkill[];
 }
 
 export interface InspectTemplateOptions {