superpowers-sage:install-plugin

Install Plugin (Composer + Lando)

Install WordPress plugins through Composer only.

Announce at start: "I'm using the install-plugin skill to install this plugin with Composer inside Lando."

Inputs

$ARGUMENTS

Rules

• Never use wp plugin install for new plugin installation.
• Always run composer through Lando: lando composer ....
• Install at project root composer.json (WordPress/plugin level), not theme composer.json.
• If plugin activation is requested, use lando wp plugin activate <slug> after Composer install.

Procedure

1) Validate context

1. Confirm this is a Lando WordPress project (.lando.yml and root composer.json exist).
2. Read skills/sage-lando/references/wordpress-composer.md.
3. Ensure wp-packages.org repository exists:

lando composer config repositories.wp-packages composer https://repo.wp-packages.org

2) Route by argument type

Case A: Local zip (*.zip)

1. Resolve path from $ARGUMENTS.
2. If zip is outside project root, copy to ./packages/<filename>.zip.
3. Derive slug from filename:
   • plugin-name.zip -> package local/plugin-name, type wordpress-plugin
   • mu-plugin-name.zip -> package local/plugin-name, type wordpress-muplugin
4. Add/update a type: package repository entry in root composer.json pointing to ./packages/<filename>.zip.
5. Install with Composer:

lando composer require local/plugin-name

Case B: Package name already provided (vendor/name)

1. If argument already matches vendor/name, install directly:

lando composer require vendor/name

2. If it starts with wp-plugin/, no extra conversion is needed.

Case C: Plugin slug or human name

1. Normalize to a slug candidate (lowercase, dashes).
2. Try package wp-plugin/<slug>.
3. If uncertain or missing, search on https://wp-packages.org/ and map to the exact slug.
4. Install:

lando composer require wp-plugin/<slug>

3) Verify installation

# Composer package installed
lando composer show wp-plugin/<slug>

# WordPress sees plugin
lando wp plugin list

If user requested activation:

lando wp plugin activate <slug>

Failure modes

Package not found

• Cause: wrong slug or package namespace.
• Fix: search wp-packages.org and retry with exact package.

Composer ran in wrong context

• Cause: command executed in theme folder.
• Fix: run from project root where WordPress composer.json lives.

Zip package installs but plugin not recognized

• Cause: wrong package type (wordpress-plugin vs wordpress-muplugin) or invalid zip structure.
• Fix: correct repository metadata and ensure zip contains valid plugin root files.

Completion

Report:

1. Which package was required
2. Whether repository config was added/updated
3. Whether plugin was activated
4. Any manual follow-up needed