wp-playground

wp-playground is a skill for Claude Code from dr-robert-li/cowork-wordpress-expert. It costs 60 tokens per session (1,140 once invoked), scanned A, original, MIT.

A toolkit for running temporary WordPress sites in a browser or on your computer. It can mount local plugins or themes, change WordPress and PHP versions, run JSON blueprints, create snapshots, and debug with Xdebug.

In plain words
What is it for?
Testing plugins and themes, trying WordPress blueprints, reproducing version-specific bugs, creating shareable or CI snapshots, and debugging PHP code.
Why use it?
It avoids setting up a complete WordPress server for every test. Temporary isolated sites also make it easier to reproduce problems without using production data.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the wordpress-expert plugin — 54 skills shipped together

Good fit Testing plugins and themes, trying WordPress blueprints, reproducing version-specific bugs, creating shareable or CI snapshots, and debugging PHP code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dr-robert-li/cowork-wordpress-expert/wp-playground
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 dr-robert-li/cowork-wordpress-expert --skill wp-playground
Clone the repo
git clone --depth 1 https://github.com/dr-robert-li/cowork-wordpress-expert

Made for: Claude Code.

Or install wordpress-expert, the plugin that ships this one along with the rest of its 54 skills.

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-playground

README.md
[![agentmods](https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/wp-playground/github.svg)](https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/wp-playground)
Your own site
<a href="https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/wp-playground"><img src="https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/wp-playground/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for wp-playground

Your own site · 80×15
<a href="https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/wp-playground"><img src="https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/wp-playground.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,140 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.
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 $0.00060 $0.01140
Opus 5 $0.00030 $0.00570
Sonnet 5 $0.00012 $0.00228
Haiku 4.5 $0.00006 $0.00114

Measured 10d ago against content hash c855c5750fbc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

wp-playground 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 10d 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

references/wp-playground/SKILL.md · 102 lines

How it starts

The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.

WordPress Playground

When to use

  • Spin up a disposable WordPress to test a plugin/theme without full stack setup.
  • Run or iterate on Playground Blueprints (JSON) locally.
  • Build a reproducible snapshot of a site for sharing or CI.
  • Switch WP/PHP versions quickly to reproduce issues.
  • Debug plugin/theme code with Xdebug in an isolated Playground.

Inputs required

  • Host machine readiness: Node.js ≥ 20.18, npm/npx available.
  • Project path to mount (--auto-mount or explicit mount mapping).
  • Desired WP version/PHP version (optional; defaults to latest WP, PHP 8.3).
  • Blueprint location/URL if running a blueprint.
  • Port preference if 9400 conflicts.
  • Whether Xdebug is needed.

Procedure

0) Guardrails

  • Playground instances are ephemeral and SQLite-backed; never point at production data.
  • Confirm Node ≥ 20.18 (node -v) before running CLI.
  • If mounting local code, ensure it is clean of secrets; Playground copies files into an in-memory FS.

1) Quick local spin-up (auto-mount)

cd <plugin-or-theme-root>
npx @wp-playground/cli@latest server --auto-mount
  • Opens on http://localhost:9400 by default. Auto-detects plugin/theme and installs it.
  • Add --wp=<version> / --php=<version> as needed.
  • For classic full installs already present, add --skip-wordpress-setup and mount the whole tree.

2) Manual mounts or multiple mounts

  • Use --mount=/host/path:/vfs/path (repeatable) when auto-mount is insufficient (multi-plugin, mu-plugins, custom content).
  • Mount before install with --mount-before-install for bootstrapping installer flows.
  • Reference: references/cli-commands.md

3) Run a Blueprint (no server needed)

npx @wp-playground/cli@latest run-blueprint --blueprint=<file-or-url>
  • Use for scripted setup/CI validation. Supports remote URLs and local files.
  • Allow bundled assets in local blueprints with --blueprint-may-read-adjacent-files when required.
  • See references/blueprints.md for structure and common flags.

Read the full file on GitHub · 102 lines

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. 10d ago First seen · 102 lines · 60 tokens per session scan A c855c5750fbc

Subscribe to this mod's changes

wp-playground is a skill published in the GitHub repository dr-robert-li/cowork-wordpress-expert (28 stars, last pushed 6mo ago), licensed MIT. It adds 60 tokens to every session and 1,140 once invoked, about $0.0003 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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