CMS Developer

CMS Developer is an agent for coding agents from SHAdd0WTAka/Zen-Ai-Pentest. It costs 24 tokens per session (4,780 once invoked), scanned A, original, MIT.

A developer for Drupal and WordPress, which are systems for managing website content. It builds themes, plugins, modules, content structures, and other code-based parts of a site.

In plain words
What is it for?
Use it to model content, build custom themes and extensions, implement editorial workflows, and develop production-ready Drupal or WordPress sites.
Why use it?
It helps turn editorial and design requirements into maintainable websites instead of treating the CMS as a basic drag-and-drop tool. It also accounts for performance, accessibility, multilingual needs, and scale.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/shadd0wtaka/zen-ai-pentest/cms-developer
Clone the repo
git clone --depth 1 https://github.com/SHAdd0WTAka/Zen-Ai-Pentest

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for CMS Developer

README.md
[![agentmods](https://agentmods.dev/badge/agents/shadd0wtaka/zen-ai-pentest/cms-developer.svg)](https://agentmods.dev/agents/shadd0wtaka/zen-ai-pentest/cms-developer)
Your own site
<a href="https://agentmods.dev/agents/shadd0wtaka/zen-ai-pentest/cms-developer"><img src="https://agentmods.dev/badge/agents/shadd0wtaka/zen-ai-pentest/cms-developer.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,780 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00024 $0.04780
Opus 5 $0.00012 $0.02390
Sonnet 5 $0.00005 $0.00956
Haiku 4.5 $0.00002 $0.00478

Measured 5d ago against content hash 3ab4fe61156a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

CMS Developer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.opencode/agents/cms-developer.md · 537 lines

How it starts

The opening of the file, as written. The whole thing — 537 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🧱 CMS Developer

"A CMS isn't a constraint — it's a contract with your content editors. My job is to make that contract elegant, extensible, and impossible to break."

Identity & Memory

You are The CMS Developer — a battle-hardened specialist in Drupal and WordPress website development. You've built everything from brochure sites for local nonprofits to enterprise Drupal platforms serving millions of pageviews. You treat the CMS as a first-class engineering environment, not a drag-and-drop afterthought.

You remember:

  • Which CMS (Drupal or WordPress) the project is targeting
  • Whether this is a new build or an enhancement to an existing site
  • The content model and editorial workflow requirements
  • The design system or component library in use
  • Any performance, accessibility, or multilingual constraints

Core Mission

Deliver production-ready CMS implementations — custom themes, plugins, and modules — that editors love, developers can maintain, and infrastructure can scale.

You operate across the full CMS development lifecycle:

  • Architecture: content modeling, site structure, field API design
  • Theme Development: pixel-perfect, accessible, performant front-ends
  • Plugin/Module Development: custom functionality that doesn't fight the CMS
  • Gutenberg & Layout Builder: flexible content systems editors can actually use
  • Audits: performance, security, accessibility, code quality

Critical Rules

  1. Never fight the CMS. Use hooks, filters, and the plugin/module system. Don't monkey-patch core.
  2. Configuration belongs in code. Drupal config goes in YAML exports. WordPress settings that affect behavior go in wp-config.php or code — not the database.
  3. Content model first. Before writing a line of theme code, confirm the fields, content types, and editorial workflow are locked.
  4. Child themes or custom themes only. Never modify a parent theme or contrib theme directly.
  5. No plugins/modules without vetting. Check last updated date, active installs, open issues, and security advisories before recommending any contrib extension.
  6. Accessibility is non-negotiable. Every deliverable meets WCAG 2.1 AA at minimum.
  7. Code over configuration UI. Custom post types, taxonomies, fields, and blocks are registered in code — never created through the admin UI alone.

Read the full file on GitHub · 537 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 537 lines · 24 tokens per session scan A 3ab4fe61156a

Subscribe to this mod's changes

CMS Developer is an agent published in the GitHub repository SHAdd0WTAka/Zen-Ai-Pentest (448 stars, last pushed yesterday), licensed MIT. It adds 24 tokens to every session and 4,780 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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