blog-article-writer

name	blog-article-writer
description	Complete blog article creation workflow with automatic OG image generation and mandatory EN translation. Use for creating new blog articles - supports prime (research), plan, execute, validate, translate, and generate-og-prompt subcommands. Automatically generates OG images using Gemini API if GEMINI_API_KEY is configured. Every PL article gets EN counterpart in the same workflow run.
license	Apache-2.0

Blog Article Writer

Complete workflow for creating blog articles on pawel.lipowczan.pl with automatic OG image generation.

Quick Reference

Available Subcommands

Command	Purpose
/blog-article-writer:prime	Research and analyze source materials
/blog-article-writer:plan	Create detailed article plan
/blog-article-writer:execute	Write article following approved plan
/blog-article-writer:validate	Validate article + generate OG image + update sitemap
/blog-article-writer:translate	Mandatory EN translation after PL validation passes
/blog-article-writer:archive	Archive source materials from docs/blog/ after publishing
/blog-article-writer:generate-og-prompt	Generate Gemini API prompt for OG image

Workflow Overview

1. /blog-article-writer:prime
   ↓ (Research source materials, analyze style)

2. /blog-article-writer:plan
   ↓ (Create detailed implementation plan)

3. USER APPROVAL of plan
   ↓

4. /blog-article-writer:execute
   ↓ (Write PL article using portfolio-copywriting skill)

5. /blog-article-writer:validate (invoke after execute)
   ↓ (Validate PL quality, generate OG image, update sitemap)

6. /blog-article-writer:translate (MANDATORY — run after validate ✅ PASSED)
   ↓ (Generate EN translation, bidirectional alternateSlug,
      remap internal links, regenerate sitemap, validate EN)

7. /blog-article-writer:archive (MANUAL, SKIPPABLE — run after translate)
   ↓ (Move docs/blog/* → docs/blog/_archive/{slug}/ via git mv,
      auto-generate MANIFEST.md. Skip if you plan a follow-up
      article from the same source pack.)

8. Done — both PL and EN articles ready for single commit

Note: translate step is not optional. Every PL article must have an EN counterpart in the same workflow run. This guarantees bilingual symmetry across the blog (PL count = EN count in sitemap.xml).

Prerequisites

• Source materials in docs/blog/ (top-level only — see _archive/ rule below)
• GEMINI_API_KEY in .env file (for OG image generation)
• scripts/generate-image.js available
• Dev server available (npm run dev)

Context hygiene: docs/blog/_archive/ is OFF-LIMITS

docs/blog/_archive/ holds source materials for past, already-published articles and exists only to preserve provenance and history. It is not a knowledge base, not a reference, and not a source of inspiration for the current article.

The agent MUST NOT read from docs/blog/_archive/ during any subcommand other than /blog-article-writer:archive. This applies to prime, plan, execute, validate, translate, and generate-og-prompt. Reading from _archive/ (with Read, Grep, Glob, cat, ls -R, etc.) pollutes the working context with off-topic material and degrades plan quality.

When listing docs/blog/, always filter out _archive:

ls docs/blog/ | grep -v '^_archive$'      # bash

Get-ChildItem docs/blog -Force | Where-Object { $_.Name -ne '_archive' }   # PowerShell

The only subcommand that touches _archive/ is /blog-article-writer:archive, and it writes (creates _archive/{slug}/ and MANIFEST.md) — it does not read from existing archive folders either.

File Locations

Artifact	Path
Prime Context	.claude/agents/context/blog-prime-{topic}.md
Plans	.claude/agents/plans/blog-{slug}.md
Articles	src/content/blog/{slug}.md
Validation Reports	.claude/agents/reports/validation-blog-{slug}.md
OG Images	public/images/og-{slug}.webp
OG Prompts	.claude/agents/prompts/og-{slug}-prompt.txt

Critical Requirements

Code Blocks

• ALL code blocks MUST have language tag
• Use text if no specific language applies
• Validation will fail if blocks lack tags

Language

Single source of truth: .claude/rules/content/10-prosty-polski.md (replacement table, keep-list, forbidden-word grep). Core rules:

• Plain Polish by default; English stays only when the reader sees the term in a tool's UI or file system (commit, frontmatter, vault, command names, technology names)
• NEVER polonize verbs: "ingestować", "mergować", "commitować" → Polish verb or "robić commit"
• Define every hard term (keep-list included) in parentheses at first use in the article

Style

• Pawel's voice: direct, practical, personal
• Short paragraphs (2-4 sentences)
• Bold key concepts on first mention
• First-person perspective

FAQ Section (Required)

• 4-6 questions optimized for LLM discovery
• Natural Polish questions (10-25 words each)
• Snippet-style answers (2-4 sentences)
• Use <details open> accordion format
• See docs/faq/FAQ_TEMPLATE.md for structure

OG Images

• NO TEXT (abstract visual design only)
• Uses portfolio design tokens (#00ff9d, #00b8ff, #0a0e1a, #151b2b)
• Generated via scripts/generate-image.js + Gemini API
• Auto-converted to WebP

Subcommand Details

/blog-article-writer:prime

Purpose: Research and analyze source materials before writing.

Steps:

1. Check docs/blog/ for source materials
2. Read 2-3 recent articles from src/content/blog/
3. Review portfolio-copywriting skill guidelines
4. Extract key topics and concepts
5. Create prime artifact: .claude/agents/context/blog-prime-{topic}.md

Output: Prime artifact with comprehensive context

---

/blog-article-writer:plan

Purpose: Create detailed implementation plan.

Prerequisites: Prime completed

Steps:

1. Load prime context
2. Determine next blog ID (grep existing IDs)
3. Design frontmatter (title, excerpt, slug, tags)
4. Plan article structure (H2 sections, word counts)
5. Plan FAQ questions (4-6)
6. Create plan artifact: .claude/agents/plans/blog-{slug}.md

Output: Complete plan ready for user approval

---

/blog-article-writer:execute

Purpose: Write complete blog article following approved plan.

Prerequisites: Plan approved by user

Steps:

1. Load plan from .claude/agents/plans/blog-{slug}.md
2. Check for user feedback in plan
3. Use portfolio-copywriting skill to write article
4. Save to src/content/blog/{slug}.md
5. Notify user to run validate

Output: Complete article markdown file

---

/blog-article-writer:validate

Purpose: Validate article and generate OG image.

Prerequisites: Article exists in src/content/blog/

Steps:

Level 1: File Structure

• Article file exists
• Frontmatter valid YAML
• All required fields present
• Blog ID unique

Level 2: Content Quality

• Code blocks have language tags
• No polonized terms
• FAQ section present
• CTA section present

Level 3: Generate OG Image

# 1. Generate prompt (internally)
# Uses article metadata + design tokens

# 2. Call generate-image.js
node scripts/generate-image.js "{PROMPT}" \
  --filename og-{slug} \
  --output public/images \
  --model gemini-3-pro-image-preview

# 3. Convert to WebP
node scripts/convert-to-webp.js public/images/og-{slug}.png

# 4. Remove PNG (keep only WebP)

Level 4: Update Sitemap

node scripts/update-sitemap.js

Level 5: Create Validation Report

• Save to .claude/agents/reports/validation-blog-{slug}.md

Output: Validation report + OG image generated

---

/blog-article-writer:archive

Purpose: Move source materials from docs/blog/ into a per-article archive folder after publishing.

Prerequisites:

• Published PL article exists at src/content/blog/{slug}.md
• (Recommended) Published EN article exists at src/content/blog/en/{slug}.md — missing EN warns but does not block

Inputs: {slug} (required), --force (optional, allow re-archive into existing _archive/{slug}/)

Steps:

1. Verify src/content/blog/{slug}.md exists (else abort, working tree unchanged)
2. Verify docs/blog/_archive/{slug}/ does not exist unless --force (else abort)
3. Enumerate top-level entries in docs/blog/, excluding whitelist (_archive, README.md, .gitkeep)
4. If list is empty → no-op with Nothing to archive in docs/blog/
5. mkdir -p docs/blog/_archive/{slug}/
6. For each entry: git mv (with mv fallback for untracked entries) into the archive folder
7. Resolve EN counterpart by reading alternateSlug from PL frontmatter and checking src/content/blog/en/{alternateSlug}.md; if either is missing, emit warning
8. Write docs/blog/_archive/{slug}/MANIFEST.md with date, slug, PL/EN article links, and bullet list of moved top-level entries
9. Print summary; suggest user reviews git status before committing

Output:

• Source materials moved into docs/blog/_archive/{slug}/ (history preserved via git mv)
• docs/blog/_archive/{slug}/MANIFEST.md auto-generated

Edge cases: empty source → no-op; archive folder collision → refuse without --force; missing EN translation → warn + record (no EN translation) in manifest; unknown slug → refuse before any move.

This step is manual and skippable. Skip when planning a follow-up article from the same source pack.

---

/blog-article-writer:generate-og-prompt

Purpose: Generate Gemini API prompt for OG image.

Input: Article slug

Steps:

1. Read article frontmatter from src/content/blog/{slug}.md
2. Load design tokens from .claude/reference/design/design-tokens.json
3. Build Gemini-optimized prompt
4. Save to .claude/agents/prompts/og-{slug}-prompt.txt
5. Display prompt and usage instructions

Prompt Template:

Create an abstract Open Graph image (1200x630px aspect ratio) for a blog article about [{category}]:

**Article Context:**
- Title: {title}
- Topic: {category}

**Visual Design Requirements:**

Background:
- Deep dark gradient from #0a0e1a (bottom) to #151b2b (top)

Primary Visual Elements (bright green #00ff9d):
- Abstract geometric shapes suggesting code/technology
- Neural network node patterns
- Circuit board pathways
- Floating hexagons

Secondary Visual Elements (cyan #00b8ff):
- Complementary geometric shapes
- Terminal window outlines (no text)
- Data flow visualization

**CRITICAL CONSTRAINTS:**
- ABSOLUTELY NO TEXT, LETTERS, NUMBERS, WORDS
- Pure abstract visual art only
- Professional enough for LinkedIn/Twitter previews

**Aspect Ratio:** 1200x630 pixels

Integration with Scripts

generate-image.js

Located at: scripts/generate-image.js

Usage:

node scripts/generate-image.js "prompt text" \
  --filename og-slug-name \
  --output public/images \
  --model gemini-3-pro-image-preview

Requirements:

• GEMINI_API_KEY in .env
• Default model: gemini-3-pro-image-preview

convert-to-webp.js

Located at: scripts/convert-to-webp.js

Usage:

node scripts/convert-to-webp.js public/images/og-slug.png

update-sitemap.js

Located at: scripts/update-sitemap.js

Usage:

node scripts/update-sitemap.js

Error Handling

Missing GEMINI_API_KEY

If API key not configured:

1. Skip automatic OG generation
2. Generate prompt and save to file
3. Notify user to generate manually or add API key

Image Generation Failure

If Gemini API fails:

1. Log error details
2. Save prompt for manual retry
3. Continue with other validation steps
4. Mark OG image as pending in report

Article Validation Failure

If validation finds issues:

1. List all failures
2. DO NOT proceed with OG generation
3. Wait for user fixes
4. Re-run validation after fixes

See Also

• Portfolio Copywriting: .claude/skills/portfolio-copywriting/SKILL.md
• Design Tokens: .claude/reference/design/design-tokens.json
• FAQ Guidelines: docs/faq/FAQ_TEMPLATE.md
• Article Examples: src/content/blog/

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Last Updated: 2026-05-09 Status: Active