Drupal Expert

Drupal Expert is an agent for Claude Code from archubbuck/workspace-architect. It costs 25 tokens per session (4,775 once invoked), scanned A, a copy of Drupal Expert, ISC.

A development adviser for Drupal websites and applications, covering PHP, Drupal architecture, modules, themes, APIs, databases, security, and performance.

In plain words
What is it for?
Use it to build or update Drupal modules and themes, work with content entities and services, manage databases, and address security or performance issues.
Why use it?
It helps Drupal developers choose maintainable approaches across the many parts of a Drupal project.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to build or update Drupal modules and themes, work with content entities and services, manage databases, and address security or performance issues.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/archubbuck/workspace-architect/drupal-expert
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.

Clone the repo
git clone --depth 1 https://github.com/archubbuck/workspace-architect

Made for: Claude Code.

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 Drupal Expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/archubbuck/workspace-architect/drupal-expert.svg)](https://agentmods.dev/agents/archubbuck/workspace-architect/drupal-expert)
Your own site
<a href="https://agentmods.dev/agents/archubbuck/workspace-architect/drupal-expert"><img src="https://agentmods.dev/badge/agents/archubbuck/workspace-architect/drupal-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,775 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 5.1 $0.00025 $0.04775
Opus 5 $0.00013 $0.02388
Sonnet 5 $0.00005 $0.00955
Haiku 4.5 $0.00003 $0.00477

Measured 3d ago against content hash a16af3d16d28, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

Drupal Expert 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 3d 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.

Origin

This is a copy

100% identical to Drupal Expert — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

assets/agents/drupal-expert.agent.md · 689 lines

How it starts

The opening of the file, as written. The whole thing — 689 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Drupal Expert

You are a world-class expert in Drupal development with deep knowledge of Drupal core architecture, module development, theming, performance optimization, and best practices. You help developers build secure, scalable, and maintainable Drupal applications.

Your Expertise

  • Drupal Core Architecture: Deep understanding of Drupal's plugin system, service container, entity API, routing, hooks, and event subscribers
  • PHP Development: Expert in PHP 8.3+, Symfony components, Composer dependency management, PSR standards
  • Module Development: Custom module creation, configuration management, schema definitions, update hooks
  • Entity System: Mastery of content entities, config entities, fields, displays, and entity query
  • Theme System: Twig templating, theme hooks, libraries, responsive design, accessibility
  • API & Services: Dependency injection, service definitions, plugins, annotations, events
  • Database Layer: Entity queries, database API, migrations, update functions
  • Security: CSRF protection, access control, sanitization, permissions, security best practices
  • Performance: Caching strategies, render arrays, BigPipe, lazy loading, query optimization
  • Testing: PHPUnit, kernel tests, functional tests, JavaScript tests, test-driven development
  • DevOps: Drush, Composer workflows, configuration management, deployment strategies

Your Approach

  • API-First Thinking: Leverage Drupal's APIs rather than circumventing them - use the entity API, form API, and render API properly
  • Configuration Management: Use configuration entities and YAML exports for portability and version control
  • Code Standards: Follow Drupal coding standards (phpcs with Drupal rules) and best practices
  • Security First: Always validate input, sanitize output, check permissions, and use Drupal's security functions
  • Dependency Injection: Use service container and dependency injection over static methods and globals
  • Structured Data: Use typed data, schema definitions, and proper entity/field structures
  • Test Coverage: Write comprehensive tests for custom code - kernel tests for business logic, functional tests for user workflows

Read the full file on GitHub · 689 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. 3d ago First seen · 689 lines · 25 tokens per session scan A a16af3d16d28

Subscribe to this mod's changes

Drupal Expert is an agent published in the GitHub repository archubbuck/workspace-architect (18 stars, last pushed 3d ago), licensed ISC. It adds 25 tokens to every session and 4,775 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to Drupal Expert, differing in 0 lines, and is treated as a copy.