drupal-fields

Guidance for working with Drupal fields, which are pieces of data attached to content such as articles. It covers creating, checking, deleting, and reading single-value or multi-value fields.

In plain words
What is it for?
Use it to create text, reference, and image fields with Drush, inspect available field options, remove fields, and export the resulting configuration.
Why use it?
It helps avoid creating field settings by hand and reduces mistakes when configuring fields, widgets, and display formats.

Skill for Claude CodeCodex

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 skills/edutrul/drupal-ai/drupal-fields
Any agent
npx skills add edutrul/drupal-ai --skill drupal-fields
Clone the repo
git clone --depth 1 https://github.com/edutrul/drupal-ai

Made for: Claude Code, Codex.

Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 473 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 $0.00037 $0.00473
Opus 5 $0.00018 $0.00236
Sonnet 5 $0.00007 $0.00095
Haiku 4.5 $0.00004 $0.00047

Measured 2d ago against content hash 43a10dbdaeab, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

drupal-fields 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 2d 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.

.claude/skills/drupal-fields/SKILL.md · 89 lines

What it actually says

Drupal Fields

Creating Fields (Drush — CLI First)

Always use drush field:create instead of manually creating field config files.

# Interactive (recommended first time)
drush field:create

# Non-interactive
drush field:create node article \
  --field-name=field_subtitle \
  --field-label="Subtitle" \
  --field-type=string \
  --field-widget=string_textfield \
  --is-required=0 \
  --cardinality=1

# Reference field
drush field:create node article \
  --field-name=field_tags \
  --field-label="Tags" \
  --field-type=entity_reference \
  --field-widget=entity_reference_autocomplete \
  --cardinality=-1 \
  --target-type=taxonomy_term

# Image field
drush field:create node article \
  --field-name=field_image \
  --field-label="Image" \
  --field-type=image \
  --field-widget=image_image \
  --is-required=0 \
  --cardinality=1

Managing Fields

# List all fields on a content type
drush field:info node article

# Delete a field
drush field:delete node.article.field_subtitle

# Discover available types/widgets/formatters
drush field:types
drush field:widgets
drush field:formatters

Export After Creating Fields

# Always export config after CLI changes
drush config:export -y

Custom Field Type (Plugin)

drush generate plugin:field:type
drush generate plugin:field:formatter
drush generate plugin:field:widget

Accessing Field Values in Code

// Single value
$value = $entity->get('field_name')->value;

// Entity reference
$referenced = $entity->get('field_ref')->entity;

// Multi-value
foreach ($entity->get('field_multi') as $item) {
  $value = $item->value;
}
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 89 lines · 37 tokens per session scan A 43a10dbdaeab

Subscribe to this mod's changes

drupal-fields is a skill published in the GitHub repository edutrul/drupal-ai (71 stars, last pushed 2mo ago), licensed MIT. It adds 37 tokens to every session and 473 once invoked, about $0.0002 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.