wp-plugin-dev

A development guide for creating WordPress plugins, which are add-ons that extend WordPress websites. It follows WordPress coding rules, security practices, accessibility expectations, and directory guidelines.

In plain words
What is it for?
Creating plugin features such as settings pages, custom post types, shortcodes, and WooCommerce extensions.
Why use it?
It gives developers a consistent checklist for building plugins that are safer, easier to maintain, and suitable for WordPress.org review. The description does not specify individual commands or files.

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/wpacademy/wordpress-dev-skills/wp-plugin-dev
Any agent
npx skills add wpacademy/wordpress-dev-skills --skill wp-plugin-dev
Clone the repo
git clone --depth 1 https://github.com/wpacademy/wordpress-dev-skills

Made for: Claude Code, Codex.

Per session 147 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,005 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00147 $0.02005
Opus 5 $0.00073 $0.01002
Sonnet 5 $0.00029 $0.00401
Haiku 4.5 $0.00015 $0.00200

Measured 2d ago against content hash 659b040c07af, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

wp-plugin-dev 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.

wp-plugin-dev/SKILL.md · 178 lines

The source is not reproduced here

Licensed GPL-2.0

The repository is licensed GPL-2.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

3 files 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 · 178 lines · 147 tokens per session scan A 659b040c07af

Subscribe to this mod's changes

wp-plugin-dev is a skill published in the GitHub repository wpacademy/wordpress-dev-skills (67 stars, last pushed 6mo ago), licensed GPL-2.0. It adds 147 tokens to every session and 2,005 once invoked, about $0.0007 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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