wp-plugin-bootstrap

wp-plugin-bootstrap is a skill for Claude Code, Codex from Lonsdale201/wp-agent-skills. It costs 183 tokens per session (3,912 once invoked), scanned A, original, MIT.

A guide to the main PHP file that WordPress loads first for a plugin. It covers the plugin header, safety checks, file paths, dependency loading, and activation setup.

In plain words
What is it for?
It is for starting a new plugin, reviewing its entry point, adding Composer-based loading, or adapting a plugin to newer WordPress versions.
Why use it?
It helps prevent activation failures, missing classes, unsafe direct access, and update or dependency problems.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for starting a new plugin, reviewing its entry point, adding Composer-based loading, or adapting a plugin to newer WordPress versions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lonsdale201/wp-agent-skills/wp-plugin-bootstrap
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.

Any agent
npx skills add Lonsdale201/wp-agent-skills --skill wp-plugin-bootstrap
Clone the repo
git clone --depth 1 https://github.com/Lonsdale201/wp-agent-skills

Made for: Claude Code, Codex.

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 wp-plugin-bootstrap

README.md
[![agentmods](https://agentmods.dev/badge/skills/lonsdale201/wp-agent-skills/wp-plugin-bootstrap.svg)](https://agentmods.dev/skills/lonsdale201/wp-agent-skills/wp-plugin-bootstrap)
Your own site
<a href="https://agentmods.dev/skills/lonsdale201/wp-agent-skills/wp-plugin-bootstrap"><img src="https://agentmods.dev/badge/skills/lonsdale201/wp-agent-skills/wp-plugin-bootstrap.svg" alt="Measured on agentmods" height="20"></a>
Per session 183 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,912 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00183 $0.03912
Opus 5 $0.00092 $0.01956
Sonnet 5 $0.00037 $0.00782
Haiku 4.5 $0.00018 $0.00391

Measured 5d ago against content hash e49757e909d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

wp-plugin-bootstrap 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 5d 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.

plugin-scaffold/wp-plugin-bootstrap/SKILL.md · 317 lines

How it starts

The opening of the file, as written. The whole thing — 317 lines — stays where its author put it; the contents beside it link to each section on GitHub.

WordPress plugin: bootstrap (main file)

The single PHP file at the plugin root, named after the plugin folder, that WordPress loads first when the plugin is active. Get this right and the rest of the plugin can be a clean class-based architecture; get it wrong and you ship a plugin that fails activation, leaks runtime errors, or won't update cleanly.

This skill covers ONLY the entry-point file and the immediately-adjacent decisions (composer.json, optional uninstall.php reference). Activation cleanup, deactivation cron clear, custom uninstall logic — those are scope for wp-plugin-lifecycle (sibling skill).

When to use this skill

Trigger when ANY of the following is true:

  • Scaffolding a new WordPress plugin from scratch.
  • Reviewing the main plugin file in a PR — header, constants, autoload setup, activation hook.
  • Migrating an old plugin to WP 6.5+ (Requires Plugins) or WP 6.7+ (i18n timing).
  • Debugging activation errors: "Plugin could not be activated", "_doing_it_wrong" notices on __() / _e(), "Class not found" on first load.
  • The plugin is shipping outside wp.org and needs a self-hosted updater.
  • Adopting Composer / PSR-4 autoload in a plugin that previously didn't have it (or vice versa, removing the dependency).
  • Migrating away from legacy includes/class-my-plugin-foo.php files toward src/Foo.php / src/Domain/FooService.php.

The diff or file most likely contains: a Plugin Name: header, register_activation_hook, register_deactivation_hook, spl_autoload_register, defined('ABSPATH'), plugins_loaded, Requires Plugins, or a composer.json at the plugin root.

Hook firing order

Core loads active plugin files after muplugins_loaded, then fires plugins_loaded, after_setup_theme, and init. Two practical rules:

  • Top-level code in the bootstrap file is normal and expected. add_action() / add_filter() registrations at top level are fine — that's how plugins wire themselves into WP. What you should NOT do at top level: business logic, DB writes, calls to other plugins' functions (they may not be loaded yet), request-dependent work, or anything that triggers translation. Anything that needs other plugins available, or runtime context, goes inside a plugins_loaded callback.
  • Translation calls (__(), _e(), esc_html__, etc.) must NOT run before after_setup_theme on WP 6.7+. The just-in-time translation loader (wp-includes/l10n.php:1380 _load_textdomain_just_in_time) emits _doing_it_wrong if a translation function triggers it before after_setup_theme. Bootstrap-phase strings (PHP version errors, requirement messages built during plugin file load or in a plugins_loaded callback) must be raw English.

Read the full file on GitHub · 317 lines

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. 5d ago First seen · 317 lines · 183 tokens per session scan A e49757e909d9

Subscribe to this mod's changes

wp-plugin-bootstrap is a skill published in the GitHub repository Lonsdale201/wp-agent-skills (22 stars, last pushed 9d ago), licensed MIT. It adds 183 tokens to every session and 3,912 once invoked, about $0.0009 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 2026-09-03.

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