WP Plugin Development

Custom WordPress plugin development

An end-to-end guide for building secure, well-architected WordPress plugins, from a clean single-bootstrap structure and hook-based loading to the full activation/deactivation/uninstall lifecycle. Its core is a security baseline that has stopped the most common WordPress exploits: nonce-plus-capability double checks, prepared statements, and late escaping at every output point.

$15 one-time
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Prices include 20% VAT. · Forged on real agency work · one-time, no lock-in

  • Type Skill
  • Category Development
  • Delivery Email · instant
  • License One-time
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forgehouse, wp-plugin-development

Inside the run · no black box

See the actual work before you buy it.

Most WordPress plugin holes come from a nonce check standing alone. Here every write path pairs nonce with capability, every query goes through prepare, and the lifecycle from activation to uninstall leaves nothing orphaned.

  1. Triages the repo first with deterministic scripts: detect_wp_project.mjs identifies the project shape and detect_plugins.mjs scans plugin headers, so in a full-site repo the exact target under wp-content/plugins or mu-plugins is locked before any code changes.
  2. Lays the architecture: one bootstrap file with the plugin header, zero side effects at file-load time, all behavior registered through hooks via a loader class, and admin-only code gated behind is_admin so the frontend carries no extra weight.
  3. Wires the lifecycle correctly: activation hooks registered at top level (never inside other hooks), flush_rewrite_rules called only after CPT registration, deactivation clears every scheduled cron, and uninstall.php removes user data explicitly so nothing orphans the database.
  4. Builds settings through the Settings API: register_setting plus sections and fields, every input passing a sanitize_callback, and large data routed to a custom table instead of an autoloaded option.
  5. Applies the security baseline on every write path: nonce verification AND capability check together (nonce alone is the most common WP hole), wp_unslash plus sanitize on input, $wpdb->prepare for every query, and late escaping (esc_html/esc_attr/esc_url) at output.
  6. Verifies before release: plugin activates with no fatals or notices, settings save and read under the enforced nonce and capability, uninstall removes intended data and nothing else, and repo lint/tests (PHPCS, PHPUnit) pass.
Use cases · what happens when you plug it in

One power source. 6 lines out.

wp-plugin-development · core

core active · 6 lines

  1. Creating or refactoring plugin structure and hook registration

    ✓ creating or refactoring
  2. Implementing activation, deactivation and uninstall behavior

    ✓ implementing activation,…
  3. Building Settings API admin pages with sanitized options

    ✓ building settings api ad…
  4. Fixing security gaps (nonces, capabilities, SQL safety, escaping)

    ✓ fixing security gaps (no…
  5. Designing data storage, cron tasks and schema migrations

    ✓ designing data storage
  6. Packaging a plugin release with correct headers

    ✓ packaging a plugin release
Benefits · what you walk away with

Yours to keep.

Drag time forward. Watch what stays.

Forever

That's what owning means.

The rented stack

ai writing tool: subscription

expired · access lost

analytics suite: subscription

expired · access lost

design platform: subscription

expired · access lost

(nothing left)

Your forge

  1. Nonce + capability double checks close the most common WordPress access-control hole at once

    license: perpetual
  2. Prepared statements and late escaping eliminate SQL injection and XSS by construction

    license: perpetual
  3. Correct lifecycle hooks prevent orphaned cron events and bloated DB tables on uninstall

    license: perpetual
  4. Options-API discipline (autoload off for big data) keeps page load fast

    license: perpetual

subscriptions expire · deeds don't

What's included · the full manifest

Everything in the box.

Pick a piece up. Watch it work.

Predictable architecture: single bootstrap, hook-based loading, admin code behind is_admin()

part 01 of 06 · in the box

6 parts · one working system · ships instantly by email

Who it's for

This wasn't forged for everyone.

  • Not for you if you'd rather rent a tool than own one.
  • Not for you if you want someone else to run your stack.
  • Not for you if you're happy guessing.
Still here? Good.

WordPress developers building or auditing plugins who need a security-first architecture instead of inventing patterns ad hoc.

then this was forged for you.

Works with

Universal by design: these run in any AI. Delivered in the open Agent Skills + MCP format (native in Claude); ChatGPT, Gemini, Cursor and Copilot adapt the same files their own way.

  • Claude Native format
  • ChatGPT Adapts via open standards
  • Gemini Adapts via open standards
  • Cursor Adapts via open standards
  • Copilot Adapts via open standards
Questions · still in the air

Catch what's on your mind.

the air is clear. nothing between you and the forge.
catch a spark: the forge will answer

  1. I only need a small plugin with one settings page, is this overkill for that?

    The structure scales down: a single bootstrap file, hook-based loading and a Settings API page with sanitized options is exactly the small-plugin case it covers. The security baseline (nonce plus capability checks, late escaping) matters just as much at that size, because small plugins ship the same common holes.

  2. What makes its security approach different from just following the WordPress codex?

    It packages the defenses as enforced patterns with right-vs-wrong code examples: nonce-plus-capability double checks together (most exploits slip through when only one is present), $wpdb->prepare() for every query, and late escaping at every output point. You copy a working defensive pattern instead of reassembling rules from scattered docs.

  3. Will it also build the frontend app or SaaS my plugin talks to?

    No. Its scope is the plugin itself: architecture, hooks, lifecycle (activation through uninstall), settings, data storage, cron and release packaging. External services, frontend frameworks or the business logic of a remote API sit outside what it covers.

  4. How is it delivered?

    By email right after purchase: ready to run, downloaded instantly, no setup wait.

  5. One-time or subscription?

    A one-time purchase; no subscription or hidden fees. VAT (20%) is included.

  6. Can I get a refund?

    As a digital product, it can’t be refunded once downloaded. That’s why we show exactly what’s inside and who it’s for, right here.