Ddev

What it does

When your agent uses it

• Running CLI tools (composer
• Etc.) in a DDEV project
• Executing commands inside DDEV containers
• Working in a subdirectory of a DDEV project (e.g.

Example prompts

• “/ddev”

Requirements

• Node.js
• A Bash shell
• Docker

Workflow steps

2 steps, taken from the step headings in SKILL.md.

1. 1Resolve the container path
2. 2Execute the scoped command

What it can do on your machine

Read from SKILL.md and the folder at commit 9b5b21b. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/ (Shell), which the agent can run.

  Shell commands in SKILL.md call:

  • composer
  • npm

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • docs.ddev.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Ddev loads about 1.6k tokens when it runs, and up to ~4.7k if it reads all its reference files. Until then it costs about 113 tokens; SKILL.md has 583 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~113

When it runs · the whole SKILL.md, loaded when a task matches

~1.6k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~4.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from haxtheweb/haxcms-php at commit 9b5b21b, republished under its Apache-2.0 licence (© haxtheweb). 583 words, ~1,627 tokens.

name

ddev

description

DDEV local development environment guidance for Docker-based PHP/Node projects. Use when: (1) running CLI tools (composer, npm, wp, drush, artisan, console, etc.) in a DDEV project, (2) executing commands inside DDEV containers, (3) working in a subdirectory of a DDEV project (e.g., wp-content/plugins/my-plugin), (4) managing databases, snapshots, or project lifecycle with DDEV, (5) any task involving ddev exec, ddev ssh, or ddev start/stop.

ddev composer install          # runs composer inside the container
ddev npm run build             # runs npm inside the container
ddev wp plugin list            # runs wp-cli (WordPress only)
ddev drush cr                  # runs drush (Drupal only)
ddev artisan migrate           # runs artisan (Laravel only)
ddev console cache:clear       # runs bin/console (Symfony only)
ddev yarn add <pkg>            # runs yarn inside the container
ddev php -v                    # runs PHP inside the container

ddev wp plugin list
ddev mailpit
ddev db
ddev composer show
ddev npm ls
ddev drush cr
ddev start
ddev describe
ddev ssh

scripts/resolve-ddev-root.sh "$(pwd)"

{
  "project_root": "/Users/you/Projects/mysite",
  "container_path": "/var/www/html/wp-content/plugins/my-plugin",
  "relative_path": "wp-content/plugins/my-plugin",
  "project_name": "mysite"
}

# Install dependencies scoped to a plugin subdirectory
ddev exec --dir="/var/www/html/wp-content/plugins/my-plugin" bash -c "composer install"
ddev exec --dir="/var/www/html/wp-content/plugins/my-plugin" bash -c "npm install"

# Run a script that reads files relative to the working directory
ddev exec --dir="/var/www/html/wp-content/plugins/my-plugin" bash -c "phpunit"

# Runs in web container at docroot
ddev exec ls -la

# Scope to a subdirectory for file-path-sensitive operations
ddev exec --dir="/var/www/html/wp-content/plugins/my-plugin" bash -c "composer install"

# Run in the database container
ddev exec -s db mysql -e "SHOW DATABASES"

# Shorthand alias
ddev . ls -la

# From any subdirectory within a DDEV project
scripts/resolve-ddev-root.sh /path/to/wp-content/plugins/my-plugin

ddev describe -j

© haxtheweb, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (scripts, references) in .agents/skills/ddev of haxtheweb/haxcms-php.

• SKILL.md
• references/npm-projects.md
• references/wordpress-multisite.md
• scripts/resolve-ddev-root.sh

Open the folder on GitHubat commit 9b5b21b