Search everything...

Stats

Actions

Available In

smalltalk-dev

Name: smalltalk-dev
Author: mumez

By mumez

Develop Pharo Smalltalk projects with AI assistance: generate code, debug errors, run tests, lint and validate Tonel files, and sync changes between a Pharo image and source files via MCP.

npx claudepluginhub mumez/smalltalk-dev-plugin --plugin smalltalk-dev

Popularity

Stars

Top 25%

Med: 0·Avg: 285

Installs

Med: 0·Avg: 1

What's Inside

Skills14

smalltalk-commenter

/smalltalk-commenter

Generates CRC-style class comments for Smalltalk classes. Use after creating or modifying Tonel files to add or improve class documentation.

smalltalk-debugger

/smalltalk-debugger

Systematic debugging guide for Pharo Smalltalk development. Provides expertise in error diagnosis (MessageNotUnderstood, KeyNotFound, SubscriptOutOfBounds, AssertionFailure), incremental code execution with eval tool, intermediate value inspection, error handling patterns (`on:do:` blocks), stack trace analysis, UI debugger window detection (read_screen for hung operations), Transcript logging (crShow:,

smalltalk-developer

/smalltalk-developer

Comprehensive Pharo Smalltalk development workflow guide with AI-driven Tonel editing. Provides expertise in Tonel file format syntax (class definitions with name, superclass, instVars, category, method categories, class comment placement), package structure (package.st placement, directory organization, BaselineOf dependencies), development workflow (Edit → Import → Test cycle with absolute paths, re-import timing, test execution), and Pharo best practices (CRC format documentation, method categorization conventions). Use when working with Pharo Smalltalk projects, creating or editing Tonel .st files, organizing packages and dependencies, resolving import order issues, writing class comments, implementing standard Pharo development patterns (Singleton, Settings, etc.), or troubleshooting Tonel syntax.

smalltalk-implementation-finder

/smalltalk-implementation-finder

Method implementation finder and analyzer for Pharo Smalltalk. Provides expertise in discovering implementors across class hierarchies (search_implementors), analyzing implementation patterns, learning coding idioms from existing implementations, assessing refactoring impact (counting implementors and references), finding duplicate code for consolidation, understanding abstract method implementations (subclassResponsibility), and tracing method overrides through inheritance chains. Use when analyzing method implementations across classes, learning implementation idioms, assessing refactoring risk before changes, finding duplicate implementations for consolidation, understanding how abstract methods are implemented in concrete classes, or tracing which classes override specific methods.

smalltalk-usage-finder

/smalltalk-usage-finder

Class and method usage analyzer for Pharo Smalltalk. Provides expertise in understanding class responsibilities through class comments (get_class_comment), discovering usage patterns via references (search_references_to_class), finding example methods (exampleXXX patterns), analyzing method usage in context (search_references with polymorphism handling), generating package overviews (list_classes with comment analysis), and resolving ambiguous names (search_classes_like, search_methods_like). Use when understanding what a class does, finding usage examples for classes or methods, discovering how to use an API, analyzing package structure and purpose, resolving unclear class or method names, or learning usage patterns from real-world code.

Hooks1

Event Hooks

File writes

2 hooks across 1 event

MCP Servers2

Stats

Version1.9.4

ReleasedMay 29, 2026

LanguageShell

Stars14

Forks1

MaintenanceExcellent

LicenseMIT

Last CommitJun 16, 2026

AddedDec 13, 2025

Actions

View on GitHub View README Plugin Marketplace JSON

Own this plugin?

Verify ownership to unlock analytics, metadata editing, and a verified badge. GitHub access is read-only (username + org membership).

Available In

smalltalk-dev-marketplace14

Safety Signals

Caution

Modifies files

Hook triggers on file write and edit operations

External network access

Connects to servers outside your machine

README

smalltalk-dev Plugin

Claude Code plugin for AI-driven Smalltalk (Pharo) development.

Also available for Cursor, Windsurf, Antigravity, Antigravity CLI, GitHub Copilot CLI, OpenCode, Codex CLI, and Gemini CLI.

Overview

This plugin provides a comprehensive AI-powered toolkit for Pharo Smalltalk development. It covers the full development lifecycle — from project setup and Tonel file editing, to importing, testing, debugging, and documentation generation.

Features

Skills: All capabilities are implemented as skills — st-* skills are user-invoked commands; other skills provide AI-powered development workflow, debugging expertise, and documentation
MCP Integration: Seamless connection to Pharo and validation servers
Hooks: Automatic suggestions after file changes

Usage

Quick Start

The easiest way to use this plugin is to use the /st-buddy command:

# Start Smalltalk Buddy (once per session)
/st-buddy

# Then ask questions naturally
You: "I want to create a Person class with name and age"
AI:  I'll help you create that! [Creates Tonel files and guides you through the process]

You: "How do I test this?"
AI:  Let me run the tests for you... [Executes tests and shows results]

You: "The test failed, can you help?"
AI:  I'll debug this... [Investigates, identifies issue, and fixes it]

https://github.com/user-attachments/assets/7d27ac29-e696-4a7b-8c71-d1404f67c67a

/st-buddy is your friendly development partner that:

Understands what you want to do and routes to the right tools
Guides you through development, testing, and debugging
Helps you learn AI-assisted Smalltalk development
Works naturally through conversation

Development Workflow

Run /st-buddy once at the start of your session
Ask questions naturally about what you want to do
AI implements and manages the workflow (editing Tonel, importing, testing)
Review results and continue the conversation
Iterate until you're satisfied

For experienced users who prefer direct commands, see Commands.md.

Prerequisites

1. Pharo with PharoSmalltalkInteropServer

Choose one of the following options:

Option A: Use Docker (Easy)

Run a pre-configured Pharo image using smalltalk-interop-docker:

docker compose up -d

Option B: Local Pharo Setup

Install PharoSmalltalkInteropServer in your Pharo image.

2. Claude Code

Install Claude Code.

Other AI agents: If you use Cursor, Windsurf, Antigravity, Antigravity CLI, GitHub Copilot CLI, OpenCode, Codex CLI, or Gemini CLI instead of Claude Code, see Other AI Agents Setup Guide.

3. uv

Install uv, which is used in MCP.

Installation

Option 1: Install from GitHub (Recommended)

# Add marketplace from GitHub
claude plugin marketplace add mumez/smalltalk-dev-plugin

# Install the plugin
claude plugin install smalltalk-dev

Option 2: Local Development

For local testing and development:

# Clone the repository
git clone https://github.com/mumez/smalltalk-dev-plugin.git
cd smalltalk-dev-plugin

# Add local directory as marketplace
claude plugin marketplace add ./

# Install the plugin
claude plugin install smalltalk-dev

Option 3: Universal Install with APM

For users working with multiple AI agents, APM provides a unified install across agents:

apm install -g mumez/smalltalk-dev-plugin --target claude,copilot

Note: Requires APM to be installed. If you only use Claude Code, Option 1 is simpler.

Verify Installation

After installation, you should see the custom commands starting with /st-.

Commands (User-invoked Skills)

All commands are implemented as st-* skills. Most users should start with /st-buddy — it guides you and invokes other commands as needed.

/st-buddy - Friendly development assistant (recommended starting point)
/st-init - Load smalltalk-developer skill and explain workflow
/st-setup-project - Set up Pharo project structure
/st-eval - Execute Smalltalk code snippets
/st-lint - Check code quality and best practices
/st-import - Import Tonel packages to Pharo
/st-export - Export packages from Pharo
/st-test - Run SUnit tests
/st-validate - Validate Tonel syntax

For command details and advanced usage, see Commands.md.

Background Skills

Specialized skills that activate automatically based on context (also usable directly):

View full README on GitHub

smalltalk-dev

Popularity

What's Inside

Confidence

README

smalltalk-dev Plugin

Overview

Features

Usage

Quick Start

Development Workflow

Prerequisites

1. Pharo with PharoSmalltalkInteropServer

Option A: Use Docker (Easy)

Option B: Local Pharo Setup

2. Claude Code

3. uv

Installation

Option 1: Install from GitHub (Recommended)

Option 2: Local Development

Option 3: Universal Install with APM

Verify Installation

Commands (User-invoked Skills)

Background Skills

Similar Plugins

dh

kk

sc

developer-kit-tools

claude-pilot

superpowers

smalltalk-dev Plugin

Overview

Features

Usage

Quick Start

Development Workflow

Prerequisites

1. Pharo with PharoSmalltalkInteropServer

Option A: Use Docker (Easy)

Option B: Local Pharo Setup

2. Claude Code

3. uv

Installation

Option 1: Install from GitHub (Recommended)

Option 2: Local Development

Option 3: Universal Install with APM

Verify Installation

Commands (User-invoked Skills)

Background Skills

Popularity

Health & Quality

Similar Plugins

dh

kk

sc

developer-kit-tools

claude-pilot

superpowers