feat(skills): add dry-run installer planning surface

src/cli/skills.test.ts

@@ -104,6 +104,26 @@ describe('skills CLI helpers', () => {
     expect(output).toContain('Unavailable reasons: Required binary not found');
   });
 
+  it('renders dry-run installer plan when manifest installers are present', () => {
+    const output = renderSkillInfo(
+      buildSkill({
+        manifest: {
+          name: 'installer-aware',
+          description: 'Installer-aware skill',
+          version: '1.0.0',
+          tier: 'bundled',
+          installers: [
+            { type: 'download', url: 'https://example.com/tool.tgz', destination: '/tmp/tool.tgz' },
+          ],
+        },
+      }),
+    );
+
+    expect(output).toContain('Installer plan mode: dry-run');
+    expect(output).toContain('Installer planned steps:');
+    expect(output).toContain('[download] download https://example.com/tool.tgz -> /tmp/tool.tgz');
+  });
+
   it('summarizes refresh counts across status and tiers', () => {
     const summary = summarizeSkillsRefresh([
       buildSkill({ manifest: { name: 'a', description: 'a', version: '1.0.0', tier: 'bundled' } }),

src/cli/skills.ts

@@ -2,7 +2,7 @@ import type { Command } from 'commander';
 import { resolve } from 'path';
 import { homedir } from 'os';
 import type { Skill } from '../skills/index.js';
-import { loadAllSkills, SkillInstaller } from '../skills/index.js';
+import { loadAllSkills, SkillInstaller, buildInstallerPlan } from '../skills/index.js';
 import { loadConfigSafe } from './shared.js';
 
 export interface SkillListRow {
@@ -75,6 +75,23 @@ export function renderSkillInfo(skill: Skill): string {
     lines.push(`Unavailable reasons: ${skill.unavailableReasons.join('; ')}`);
   }
 
+  if (skill.manifest.installers && skill.manifest.installers.length > 0) {
+    const plan = buildInstallerPlan(skill.manifest.installers);
+    lines.push(`Installer plan mode: ${plan.mode}`);
+    if (plan.steps.length > 0) {
+      lines.push('Installer planned steps:');
+      for (const step of plan.steps) {
+        lines.push(`- [${step.installerType}] ${step.command}`);
+      }
+    }
+    if (plan.skipped.length > 0) {
+      lines.push('Installer skipped steps:');
+      for (const skip of plan.skipped) {
+        lines.push(`- [${skip.installerType}] ${skip.reason}`);
+      }
+    }
+  }
+
   return lines.join('\n');
 }