Craft CMS 5 — Plugin References (Index & Router)
This skill is a router, not a tutorial. Its job is to make per-plugin guidance discoverable from any task framing — front-end, back-end PHP, content migration, deployment, or config — and point you at the right reference file.
Each plugin's curated reference lives in references/<plugin>.md and covers
configuration, the Twig and/or PHP API, and the real-world pitfalls. Read the
matching reference before implementing anything plugin-specific.
How to use this skill
- Identify the plugin(s) named in the task (by name, package, or feature).
- Open the matching
references/<plugin>.mdfrom the table below. - If the task is back-end (PHP, content migration, events, deployment), check the reference's back-end / programmatic sections specifically — several plugins (Formie, Feed Me, Element API, Amazon SES) are primarily or substantially back-end despite historically living under the front-end skill.
Routing table
| Reference | Plugin (vendor) | Primary altitude | Key surface |
|---|---|---|---|
references/formie.md |
Formie (verbb) | Front-end and back-end | Form rendering (one-line/granular), theme config; programmatic form creation in a content migration, editing an existing form's field in a migration, forms as DB elements (not project config), cross-environment deployment, multi-site/static translation, overriding Formie's bundled strings (server + client window.FormieTranslations), native min/max length validation & its two message keys, required+min interaction, File Upload volume + file renaming, notification attachments, captcha & caching |
references/seomatic.md |
SEOmatic (nystudio107) | Front-end + config | Meta cascade, Twig get/set API, JSON-LD, custom element SEO bundles, sitemaps, GraphQL |
references/blitz.md |
Blitz (putyourlightson) | Mixed (front-end + ops) | Refresh modes, Twig dynamic content, driver architecture (storage/purger/deployer), Nginx rewrite, Cloudflare integration |
references/feed-me.md |
Feed Me (craftcms) | Back-end / ops | Data import from XML/JSON/CSV, field mapping, duplicate handling, CLI automation, scheduled imports |
references/imager-x.md |
Imager X (spacecatninja) | Front-end + config | Quick syntax, responsive srcset, named transforms, Power Pack markup (ppimg/pppicture), automatic generation, transformers, effects, optimizers |
references/image-optimize.md |
ImageOptimize (nystudio107) | Front-end + field config | OptimizedImages field, imgTag()/pictureTag() builders, loading strategies, transform methods, console commands |
references/ckeditor.md |
CKEditor (craftcms) | Mixed (field config + front-end) | Field settings (toolbar, headings, image mode), nested entries with chunk rendering and value helpers, link configuration, GraphQL Mode, ES-module custom plugins, HTML Purifier, Redactor migration |
references/sprig.md |
Sprig (putyourlightson) | Front-end | Reactive Twig components (htmx), live search, load more, pagination, filtering, form submissions without JS |
references/element-api.md |
Element API (craftcms) | Back-end / config | JSON API via config file, Fractal transformers, endpoint routing, pagination, caching |
references/retour.md |
Retour (nystudio107) | Ops / config | Redirect types (exact/regex), 404 tracking, CSV import, auto slug-change redirects, config |
references/navigation.md |
Navigation (verbb) | Front-end | Node querying, custom rendering, active states, custom fields on nodes, GraphQL |
references/hyper.md |
Hyper (verbb) | Front-end + field config | Link types, getLinkAttributes(), getText(), single/multi-link, element access, button atom integration |
references/colour-swatches.md |
Colour Swatches (craftpulse) | Mixed | Palette config, multi-colour swatches, Tailwind class mapping, Twig model API |
references/password-policy.md |
Password Policy (craftpulse) | Back-end / config | Validation rules, HIBP check, retention/expiry, console commands, recommended settings |
references/typogrify.md |
Typogrify (nystudio107) | Front-end | |typogrify, |widont, |truncateOnWord, smart quotes, widow prevention |
references/cache-igniter.md |
Cache Igniter (putyourlightson) | Ops | GlobalPing warmer, geographic locations, refresh delay, Blitz companion |
references/knock-knock.md |
Knock Knock (verbb) | Ops / config | Staging password protection, environment-aware config, URL exclusions |
references/timeloop.md |
Timeloop (craftpulse) | Mixed | Repeating date field, craft.timeloop variable API, recurringDates() function, GraphQL, period frequencies |
references/elements-panel.md |
Elements Panel (putyourlightson) | Dev tooling | Debug toolbar panels for element population counts, duplicate detection, eager-loading opportunities |
references/sherlock.md |
Sherlock (putyourlightson) | Ops / config | Security scanning, HTTP headers, CMS config checks, scheduled scans, IP restriction, monitoring |
references/embedded-assets.md |
Embedded Assets (spicyweb) | Mixed | oEmbed as first-class assets, craft.embeddedAssets.get(), iframe customization, GraphQL |
references/amazon-ses.md |
Amazon SES (putyourlightson) | Back-end / config | SES mail transport adapter, AWS credential config, SNS bounce tracking (no Twig API) |
references/warp.md |
Warp (craftpulse) | Front-end and back-end | Passwordless member auth: magic links (mlToken, never token), emailed one-time codes + segmented input, passkeys/WebAuthn, passwordless registration, session/device management. craft.warp variable, four fluent render builders (class accumulation + resetClass, key-by-key data merge, renderCss), @layer warp CSS escape, ten action routes (returnUrl vs Craft's redirect asymmetry, enumeration-safe responses, recent-auth-gated passkey routes), DOM contracts for hand-written markup |
references/vite.md |
Vite (nystudio107) | Front-end + buildchain | craft.vite.* Twig API (script, register, entry, asset, integrity, inline, includeCriticalCssTags, devServerRunning), vite.php config keys. Buildchain/vite.config.ts detail in the craft-site skill's references/vite-buildchain.md |
Companion skills
craftcms— for the Craft core APIs a plugin task builds on: element saving, events, migrations, queue jobs, field-value storage. Load alongside this skill for any plugin PHP/migration work.craft-site— for front-end template architecture the plugin output slots into (components, layouts, image presets). Load alongside this skill for plugin rendering/styling work.craft-content-modeling— when the plugin interacts with sections, fields, volumes, or multi-site propagation.craft-cloud/servd— when the plugin task involves deployment, edge caching, or ephemeral-filesystem constraints.