blog-system-setup

name: blog-system-setup description: Set up a lightweight, file-based blog system in existing apps with markdown content, layout categories, SEO metadata, sitemap integration, llms.txt integration, and nav linking. Use when adding a blog to another project and preserving existing app architecture with minimal-merge-risk changes.

Blog System Setup Agent

Implement a reusable blog system for product sites in the same style as ClawCity:

• Markdown posts + frontmatter
• Type-safe content loader
• /blog index + /blog/[slug] detail pages
• Category/layout-aware rendering
• SEO + schema metadata
• Sitemap + llms.txt + llms-full.txt integration
• Minimal-risk navbar/footer integration

Quick Start

Execute phases in order:

1. Audit current routes, nav, and SEO surfaces
2. Create content model and folder structure
3. Build blog routes + components
4. Integrate SEO + LLM discovery files
5. Add seed post(s)
6. Validate build and changed routes

Repository convention guard:

npm run check:agent-layout

Phase 1: Audit First

Read before editing:

• App layout and metadata root
• Navbar and mobile nav implementation
• Footer links
• sitemap and robots route files
• Existing llms.txt and llms-full.txt routes (if present)

Map where public pages are currently indexed and where to add /blog links.

Merge-Safety Rules

• Prefer additive edits over refactors.
• Do not reorder existing hook logic in shared components unless required.
• Add nav items with smallest diff possible.
• Keep existing route and metadata conventions intact.

Phase 2: Content Model

Create a file-based model.

Recommended structure:

content/blog/*.md
src/content/blog-data.ts

Recommended frontmatter:

---
slug: unique-kebab-slug
title: "Post title"
excerpt: "One-paragraph summary"
date: "YYYY-MM-DD"
lastVerified: "YYYY-MM-DD"
readingTime: "6 min"
tags:
  - Tag A
  - Tag B
layout: one-of-layout-types
published: true
coverImage: /optional-image.png
---

Required loader capabilities:

• Parse markdown frontmatter
• Validate or normalize layout
• Date-gate with published + date <= today
• Get by slug
• List published posts
• Return related posts

Phase 3: Routes and Rendering

Create:

• src/app/blog/page.tsx
• src/app/blog/[slug]/page.tsx
• Blog UI components under src/components/blog/

Minimum detail page features:

• generateStaticParams
• generateMetadata
• JSON-LD BlogPosting
• Canonical URL
• Related-post links

Recommended layout types (customize per project):

• engineering-on-clawcity
• gameplay
• agentic-gameplay
• other

Render layout-specific helper blocks so categories feel distinct.

Phase 4: SEO and LLM Integration

Update:

• sitemap to include /blog and /blog/[slug]
• llms.txt to include recent blog posts
• llms-full.txt to include an expanded blog index

Ensure:

• Plain-text response headers for llms files
• Revalidation intervals are consistent with project defaults
• All URLs use absolute production domain in llms files

Phase 5: Navigation Integration

Add blog link to:

• Desktop nav
• Mobile nav
• Footer (recommended)

Keep behavior and auth menus unchanged.

Phase 6: Seed Post and Validation

Add at least one published post to verify route generation.

Run:

npm run build

Confirm build output includes:

• /blog
• /blog/[slug]
• seeded post paths under SSG output

If full lint has known unrelated failures, run targeted lint for changed files and report scope clearly.

Copy/Paste Snippets

Add recent blogs to llms.txt block

const recentBlogPosts = getPublishedPosts().slice(0, 8);
const blogBlock = recentBlogPosts.length
  ? [
      '',
      '## Recent Blog Articles',
      ...recentBlogPosts.map((post) =>
        `- [${post.title}](${baseUrl}/blog/${post.slug}): ${post.excerpt}`
      ),
    ].join('\n')
  : '';

Add blog entries to sitemap

const blogPosts = getPublishedPosts().map((post) => ({
  url: `${baseUrl}/blog/${post.slug}`,
  lastModified: new Date(post.lastVerified ?? post.date),
  changeFrequency: 'weekly' as const,
  priority: 0.75,
}));

Done Criteria

• Blog system is fully route-accessible
• At least one published post appears online
• /blog and post URLs appear in sitemap
• llms.txt and llms-full.txt include blog content
• Nav includes blog entry (desktop + mobile)
• Build succeeds