Wp Cli Patterns

---
name: wp-cli-patterns
description: WP-CLI-first principle — use WP-CLI instead of generating PHP code whenever possible, with command reference, ACF seeding patterns, and environment-aware execution
user-invocable: false
trigger: auto-invoke when .wp-create.json exists in project root
---

# WP-CLI Patterns — Best Practices for All Agents

This skill teaches the **WP-CLI-first principle**: use WP-CLI commands instead of generating PHP code whenever possible. WP-CLI saves tokens, reduces errors, and executes faster than writing throwaway PHP files.

---

## Core Rule: WP-CLI Over PHP Generation

**Always prefer a single WP-CLI command over generating PHP code.**

```
# BAD (costs tokens): Generate PHP file with update_option()
# GOOD (1 line):      $WP option update my_option 'value'

# BAD:  Generate PHP with wp_insert_post()
# GOOD: $WP post create --post_type=page --post_title='About' --post_status=publish

# BAD:  Generate PHP with wp_create_nav_menu()
# GOOD: $WP menu create "Primary EN" && $WP menu item add-post primary-en 5

# BAD:  Generate PHP to activate a plugin
# GOOD: $WP plugin activate secure-custom-fields

# BAD:  Generate PHP to set permalink structure
# GOOD: $WP rewrite structure '/%postname%/'
```

Use `wp eval` only when no dedicated WP-CLI subcommand exists for the operation (e.g., calling ACF's `update_field()` API).

---

## The `$WP` Convention

Throughout all commands, agents, and skills, **`$WP`** is shorthand for the value of `wp_cli.wrapper` from `.wp-create.json`. Agents read this value and substitute it into all WP-CLI commands.

For example, if the environment is Docker:

```bash
# $WP expands to:
docker exec my-project-wp wp --allow-root

# So this command:
$WP option update blogname "My Site"

# Becomes:
docker exec my-project-wp wp --allow-root option update blogname "My Site"
```

**How to read `$WP`:** Parse `.wp-create.json` at the project root and extract the `wp_cli.wrapper` value. Every WP-CLI command in this skill assumes `$WP` is set to that value.

---

## Environment-Aware Execution

Agents read `wp_cli.wrapper` from `.wp-create.json` and prepend it to all WP-CLI commands. The wrapper value depends on the environment type:

| Environment | `wp_cli.wrapper` value | Notes |
|-------------|----------------------|-------|
| Native | `wp --path=/var/www/html/my-project` | Direct CLI, requires WP-CLI installed on host |
| Docker | `docker exec my-project-wp wp --allow-root` | Executes inside WordPress container |
| DDEV | `ddev wp` | DDEV proxies to the web container |
| Lando | `lando wp` | Lando proxies to the appserver container |
| wp-env | `npx wp-env run cli wp` | wp-env proxies to its CLI container |

**Important:** Never hardcode the execution method. Always read the wrapper from the manifest so commands work across all environments.

---

## Environment Detection: Reading `.wp-create.json`

The `.wp-create.json` manifest is generated by `/wp-create` at the project root. It is the single source of truth for all commands, agents, and skills.

```bash
# Check if manifest exists
if [ -f .wp-create.json ]; then
    # Extract the WP-CLI wrapper
    WP=$(jq -r '.wp_cli.wrapper' .wp-create.json)

    # Extract other useful values
    PROJECT_SLUG=$(jq -r '.project.slug' .wp-create.json)
    PRIMARY_LANG=$(jq -r '.languages.primary' .wp-create.json)
    ADDITIONAL_LANGS=$(jq -r '.languages.additional[]' .wp-create.json)
    ENV_TYPE=$(jq -r '.environment.type' .wp-create.json)
fi
```

When `.wp-create.json` does **not** exist, WP-CLI features are unavailable. Fall back to file-only operations (the pre-existing behavior).

---

## WP-CLI Command Reference

All 16 domains agents should know. Every command below is prefixed with `$WP` in practice.

| Domain | Commands |
|--------|----------|
| Database | `wp db create`, `wp db import`, `wp db export`, `wp db check`, `wp db query` |
| Content | `wp post create`, `wp post update`, `wp post delete`, `wp post meta update` |
| Media | `wp media import <url>`, `wp media regenerate` |
| Options | `wp option get`, `wp option update`, `wp option delete` |
| Menus | `wp menu create`, `wp menu item add-post`, `wp menu item add-custom`, `wp menu location assign` |
| Plugins | `wp plugin install`, `wp plugin activate`, `wp plugin deactivate`, `wp plugin list` |
| Theme | `wp theme activate`, `wp theme list` |
| Config | `wp config set`, `wp config get`, `wp config list` |
| Rewrite | `wp rewrite structure`, `wp rewrite flush` |
| Cache | `wp cache flush`, `wp transient delete --all` |
| Cron | `wp cron event list`, `wp cron event run` |
| Search | `wp search-replace 'old' 'new'` |
| Scaffold | `wp scaffold child-theme`, `wp scaffold plugin` |
| Export/Import | `wp export`, `wp import` |
| User | `wp user create`, `wp user update` |
| Eval | `wp eval 'php_code();'` |

### Useful Flags

- `--porcelain` — return only the ID (useful for capturing post/attachment IDs)
- `--format=json` — machine-readable output for parsing
- `--format=table` — human-readable output for display
- `--allow-root` — required inside Docker containers running as root
- `--force` — skip confirmation prompts (e.g., `wp post delete 1 --force`)

---

## ACF Field Seeding Patterns

### Preferred: `update_field()` via `wp eval`

Use ACF's own API for field operations. This is storage-format-agnostic and handles field key registration, serialization, and caching correctly.

```bash
# Simple field on options page
$WP eval "update_field('hero_title', 'Building Digital Excellence', 'option');"

# Image field (import first, use attachment ID)
ID=$($WP media import 'https://images.unsplash.com/photo-xxx' --title='Hero Background' --porcelain)
$WP eval "update_field('hero_image', $ID, 'option');"

# Repeater field
$WP eval "
\$rows = array(
  array('title' => 'Web Design', 'description' => 'Custom websites...', 'icon' => 43),
  array('title' => 'SEO', 'description' => 'Search optimization...', 'icon' => 44),
);
update_field('services_cards', \$rows, 'option');
"

# Page post meta (field on a specific page)
$WP eval "update_field('about_hero_title', 'Our Story', <post_id>);"
```

### Alternative: Direct `wp_options` for Bulk Operations

Faster for bulk seeding but coupled to ACF internals. Use only when ACF API is unavailable or for bulk performance.

ACF stores options page fields in `wp_options` with an `options_` prefix (e.g., field `hero_title` is stored as `options_hero_title`).

```bash
# Simple field
$WP option update options_hero_title "Building Digital Excellence"
$WP option update options_hero_image 42

# Repeater fields (indexed subfields + count)
$WP option update options_services_cards_0_title "Web Design"
$WP option update options_services_cards_0_icon 43
$WP option update options_services_cards_1_title "SEO"
$WP option update options_services_cards_1_icon 44
$WP option update options_services_cards 2  # total row count
```

### After Seeding: Always Flush Cache

```bash
$WP cache flush
```

---

## Bilingual Naming Convention

This convention matches the i18n helper system defined in the `wp-bilingual` skill.

- **Primary language fields use no suffix:** `hero_title`, `hero_description`, `cta_text`
- **Secondary language fields append `_<lang>`:** `hero_title_es`, `hero_description_es`, `cta_text_es`

### Seeding Bilingual Content

```bash
# Primary language (no suffix)
$WP eval "update_field('hero_title', 'Building Digital Excellence', 'option');"

# Secondary language (append _<lang>)
$WP eval "update_field('hero_title_es', 'Construyendo Excelencia Digital', 'option');"
$WP eval "update_field('hero_subtitle_es', 'Creamos sitios web que funcionan', 'option');"

# Bilingual repeater subfields
$WP eval "
\$rows = get_field('services_cards', 'option');
\$rows[0]['title_es'] = 'Diseno Web';
\$rows[1]['title_es'] = 'SEO';
update_field('services_cards', \$rows, 'option');
"
```

### Rules

- Non-translatable fields (images, URLs, numbers, booleans) do NOT get language variants
- Read `.wp-create.json` field `languages.additional` to know which suffixes to generate
- If `languages.additional` is empty, skip all `_<lang>` field operations

---

## Common Patterns

### Create Pages and Set Front Page

```bash
HOME_ID=$($WP post create --post_type=page --post_title='Home' --post_status=publish --porcelain)
ABOUT_ID=$($WP post create --post_type=page --post_title='About' --post_status=publish --porcelain)

$WP option update show_on_front 'page'
$WP option update page_on_front $HOME_ID
```

### Create and Assign Menus

```bash
$WP menu create "Primary EN"
$WP menu create "Primary ES"

$WP menu item add-post primary-en $HOME_ID --title="Home"
$WP menu item add-post primary-en $ABOUT_ID --title="About"
$WP menu item add-post primary-es $HOME_ID --title="Inicio"
$WP menu item add-post primary-es $ABOUT_ID --title="Acerca"

$WP menu location assign "Primary EN" primary_en
$WP menu location assign "Primary ES" primary_es
```

### Import Media and Use Attachment ID

```bash
ID=$($WP media import 'https://example.com/photo.jpg' --title='Hero Image' --porcelain)
$WP eval "update_field('hero_image', $ID, 'option');"
```

### Verify Operations

```bash
# Verify a field was seeded
$WP eval "echo get_field('hero_title', 'option') ? 'OK' : 'EMPTY';"

# Verify a page exists with correct template
$WP eval "echo get_page_template_slug($PAGE_ID);"

# Verify plugin is active
$WP plugin list --status=active --format=table

# Verify menus are assigned
$WP menu location list --format=table
```

### Final Cleanup After Seeding

```bash
$WP rewrite flush
$WP cache flush
```