Content Manager

Content Manager Agent

CMO-style agent that observes Drew's work (sessions, git, kanban) and autonomously produces multi-format blog content with rich visuals. Runs as a daily cron job or on-demand via task().

Architecture

Observer (git log / session_search / kanban_list)
  → Knowledge Base (brand-guide + glossary + narrative_arc + content-inventory)
  → Web Research (optional: related projects, memes, reference images)
  → Story Mining (editorial scoring: reader-value / drew-angle / narrative-fit / platform-fit)
  → Content Production
      ├── Blog post (.md) — Mermaid diagrams inline
      ├── SVG cover (1200×630) — rich illustration using paths/gradients/filters
      ├── SVG meme (optional) — drake/this-is-fine/galaxy-brain/distracted-boyfriend
      ├── Excalidraw diagram (.excalidraw.json) → PNG (via headless Chrome)
      └── X thread (.txt) — 10-15 tweets
  → WordPress Publishing (via custom MCP server, status: draft)
  → Huly / Kanban Review → status: published
  → Narrative Arc Update (narrative_arc.md + content-inventory.md)

Design Rules

YOUR_DOMAIN Design System (CSS)

BG:        #fafaf8 (warm off-white)
Surface:   #ffffff
Border:    #e8e7e4
Text:      #1c1c1a (primary), #6b6b68 (secondary), #9b9b97 (tertiary)
Accent:    #8b7355 (bronze), #7a6349 (accent hover), #d4c4b0 (accent muted)
Heading:   Noto Serif KR (serif)
Body:      Noto Sans KR (sans-serif)
Mono:      JetBrains Mono

Visual Assets — All $0, No Paid APIs

| Type | Format | Method | |------|--------|--------| | Cover image | SVG (1200×630) | Written as XML by the model — paths, gradients, filters | | Architecture diagram | Mermaid or Excalidraw→PNG | Inline mermaid or headless Chrome screenshot | | Meme/reference | SVG | Template-based (4 templates built in) | | Technical illustration | Excalidraw JSON → PNG | Puppeteer + excalidraw.com embed |

SVG Cover Design Rules

• Background: #0d0d1a → #1a1a30 gradient (dark theme for hero images)
• Accent: #7b5f3d (amber), #4a90d9 (blue), #50c878 (teal)
• Text: #e8e4df (warm white), #8a8680 (muted), #5a5650 (dim)
• Use: paths, bezier curves, multi-stop gradients, feGaussianBlur filters
• Include: title, subtitle, tags, date, simple illustration matching topic

Key Components

Agent Profile

• ~/.{{AGENT_NAME_LOWER}}/agents/content-manager.md — role definition (deepseek-v4-pro, opencode-go)
• Toolsets: terminal, file, search, session_search, kanban, web
• Fires daily at 12:00 KST via cron
• Also triggerable via task(subagent_type="content-manager", description="Content run", prompt="...")

Knowledge Base

at P4-cortex/content/:

• brand-guide.md — positioning, audience, tone, content pillars (4: Build Log, AI & Tools, Systems, Creative)
• glossary.md — project terms ({{AGENT_NAME}}, Gateway, M-LOG, PDC, etc.)
• content-inventory.md — published/draft tracking + dedup topics
• narrative_arc.md — serial continuity (current season, episodes, threads)

WordPress Stack

• Local Docker (colima VM, 4GB→8GB RAM, 2 CPU)
• WordPress 6.7 + MySQL 8.0 (arm64)
• Blocksy theme (free) with custom fonts
• Data on Synology NAS mount (/Volumes/YOUR_NAS/docker/wordpress/)
• Custom MCP server at ~/.{{AGENT_NAME_LOWER}}/scripts/wordpress-mcp-server.js
• 7 MCP tools: createpost, uploadmedia, listposts, getpost, createcategory, setsiteoption, settheme_mod

Huly Integration (planned)

• Huly Cloud workspace: YOUR_WORKSPACE (huly.app)
• MCP server: @bgx4k3p/huly-mcp-server@latest (81 tools)
• Key tools: createissue, listissues, updateissue, searchissues
• Note: Huly has no outgoing webhooks yet (GitHub #6996, #9187 — feature requests)

Pitfalls & Lessons

Cron Schedule

• Initially set to every 3 days → user corrected: should be DAILY when material exists
• Don't use fixed schedules for content creation — produce when material is available, stay silent when nothing new

task() Model Override

The agent profile defines model: deepseek-v4-pro, but calling via task(subagent_type="content-manager") may use a different model. In testing, the actual run used deepseek-v4-flash (the parent session's model), not the pro model defined in the profile.

Implication: Delegated content-manager runs get the flash model (faster, cheaper, slightly lower quality). Cron jobs (which use the profile's model directly) use the pro model. If output quality from a delegate_task run seems low, check which model was used — it may be the flash fallback.

Workaround: For high-quality runs, use the cron trigger or explicitly set model in the task() call parameters.

Image Generation

• DO NOT suggest paid APIs (FAL, DALL-E) first — the user explicitly rejected extra costs
• SVG cover images cost $0 and the model can write them directly
• Excalidraw JSON → PNG via Puppeteer works but needs the NODE_PATH env var set
• Mermaid renders natively in Quartz — no conversion needed

WordPress MCP Server

• Uses docker exec YOUR_DOMAIN-wp wp --allow-root internally — WordPress must be running
• Test with printf '{"jsonrpc":"2.0","id":1,"method":"list_tools"}\n' | timeout 5 node script.js
• Registered in config.yaml under mcp_servers.wordpress
• The Automattic wordpress-mcp plugin is installed but has route-registration issues on this setup

NAS Docker Access

• Use expect scripts for SSH-based Docker commands (Synology requires TTY for sudo)
• sudoers configured for NOPASSWD: /usr/local/bin/docker
• Key-based SSH auth not available — always use expect with password

User Preferences (Corrected Behaviors)

1. "변화를 두려워 하는 판단 방식은 필요없어" — Don't be conservative. Propose and test, don't list objections based on imagination.
2. "상상만으로 결정하는 방식도 필요없어" — Don't decide based on assumptions. Try it first, then evaluate.
3. "네가 직접 해야 하는게 뭐야, 너는 못해?" — When asked "can you do X?", just try it. Don't list why you can't.
4. "이미지는 머메이드가 아니라 실제 PNG" — When user says "images in the article", they mean rendered PNGs (like Excalidraw exports), not inline diagrams.

Related Skills & Files

• content-pipeline — older content pipeline (external sources), cross-reference only
• ~/.{{AGENT_NAME_LOWER}}/scripts/wordpress-mcp-server.js — WordPress MCP server
• ~/.{{AGENT_NAME_LOWER}}/scripts/excalidraw-to-png.js — Excalidraw → PNG converter
• ~/.{{AGENT_NAME_LOWER}}/wordpress/docker-compose.yml — WordPress Docker setup
• ~/.{{AGENT_NAME_LOWER}}/wordpress/.wp-env — credentials (chmod 600)

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: humanerd-drew
• Source: humanerd-drew/opencode-drewgent
• License: MIT

Install and usage instructions live in the source repository linked above.