From elixir-phoenix
Provides examples, walkthroughs, official guides, and plugin-specific patterns for Phoenix, LiveView, Ecto, and OTP. Use for 'how do I...', 'show me an example', or 'what does X look like' queries.
How this skill is triggered — by the user, by Claude, or both
Slash command
/elixir-phoenix:examplesThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
For standard implementation patterns, always check official guides first:
For standard implementation patterns, always check official guides first:
| Topic | Guide |
|---|---|
| Contexts | hexdocs.pm/phoenix/contexts |
| Ecto Basics | hexdocs.pm/phoenix/ecto |
| LiveView | hexdocs.pm/phoenix_live_view |
| Authentication | mix phx.gen.auth |
| Channels | hexdocs.pm/phoenix/channels |
| Testing | hexdocs.pm/phoenix/testing |
| Deployment | hexdocs.pm/phoenix/deployment |
Patterns NOT in official guides (unique to this plugin):
# 1. Check if Tidewave is running
/mcp
# 2. If connected, debug with runtime tools
# Get exact docs for YOUR dependency versions
mcp__tidewave__get_docs "Ecto.Query"
# Execute code in running app
mcp__tidewave__project_eval "MyApp.Accounts.list_users() |> length()"
# Query database directly
mcp__tidewave__execute_sql_query "SELECT count(*) FROM users"
# 1. Plan feature with specialist agents
/phx:plan Add user avatars with S3 upload
# 2. After implementation, review with multiple perspectives
/phx:review lib/my_app/accounts.ex # Elixir idioms
# Security analyzer runs automatically on auth code
# 3. Before deployment
# Deployment validator checks production readiness
This plugin enforces non-negotiable rules across all agents:
Elixir Idioms:
LiveView:
Oban:
Security:
# 1. Start with obvious checks
/phx:investigate Login failing after password reset
# 2. Agent checks Ralph Wiggum list:
# - File saved? Compiled? Migrated?
# - Atom vs string keys?
# - Data preloaded?
# 3. If complex, escalate to Ralph Wiggum Loop (if installed)
/ralph-loop:ralph-loop "Fix login tests. Output <promise>DONE</promise> when green."
# 1. Research phase
/phx:research Oban unique jobs best practices
# 2. Plan with context analysis
/phx:plan Add daily digest email job
# 3. Agents coordinate:
# - hex-library-researcher evaluates deps
# - oban-specialist designs worker
# - ecto-schema-designer plans data model
# 1. Run security analyzer on auth code
/phx:review lib/my_app_web/controllers/session_controller.ex
# 2. Check for common vulnerabilities:
# - SQL injection (parameterized queries?)
# - XSS (proper escaping?)
# - CSRF (tokens present?)
# - Authorization (re-checked in events?)
| Situation | Use |
|---|---|
| "How do I create a context?" | Official Phoenix guides |
| "Is my context design idiomatic?" | Plugin's /phx:review |
| "How do I add LiveView?" | Official LiveView guides |
| "Does my LiveView have memory issues?" | Plugin's Iron Laws |
| "How do I deploy to Fly.io?" | Official deployment guide |
| "Is my release config production-ready?" | Plugin's deployment-validator |
npx claudepluginhub oliver-kriska/claude-elixir-phoenix --plugin elixir-phoenixGuides Phoenix web app development in Elixir: LiveView lifecycle and components, context design and generation, channels, routers, plugs, project structure, and troubleshooting.
Provides Elixir expertise for OTP patterns, supervision trees, Phoenix LiveView, Ecto, and concurrent/distributed systems with BEAM best practices.
Guides Phoenix web app development including LiveView, contexts, channels, and production runtime configuration.