How do I install the Smalltalk skill?

Run npx skillmds@latest add kbarbel640-del/smalltalk in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Smalltalk safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: executes scripts, makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Smalltalk?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Smalltalk free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Smalltalk?

kbarbel640-del (@kbarbel640-del) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Smalltalk by kbarbel640-del — Agent Skill

Name: Smalltalk
Rating: 4.2 (5 reviews)
Author: kbarbel640-del

File contents

Smalltalk Skill

Execute Smalltalk code and browse live Squeak/Cuis images via MCP.

Prerequisites

Get the ClaudeSmalltalk repo first:

git clone https://github.com/CorporateSmalltalkConsultingLtd/ClaudeSmalltalk.git

This repo contains:

MCP server code for Squeak (MCP-Server-Squeak.st)
Setup documentation (SQUEAK-SETUP.md, CLAWDBOT-SETUP.md)
This Clawdbot skill (clawdbot/)

Setup

Set up Squeak with MCP server — see SQUEAK-SETUP.md
Configure Clawdbot — see CLAWDBOT-SETUP.md

Usage

# Check setup
python3 smalltalk.py --check

# Evaluate code
python3 smalltalk.py evaluate "3 factorial"
python3 smalltalk.py evaluate "Date today"

# Browse a class
python3 smalltalk.py browse OrderedCollection

# View method source
python3 smalltalk.py method-source String asUppercase

# List classes (with optional prefix filter)
python3 smalltalk.py list-classes Collection

# Get class hierarchy
python3 smalltalk.py hierarchy OrderedCollection

# Get subclasses  
python3 smalltalk.py subclasses Collection

# List all categories
python3 smalltalk.py list-categories

# List classes in a category
python3 smalltalk.py classes-in-category "Collections-Sequenceable"

# Define a new class
python3 smalltalk.py define-class "Object subclass: #Counter instanceVariableNames: 'count' classVariableNames: '' poolDictionaries: '' category: 'MyApp'"

# Define a method
python3 smalltalk.py define-method Counter "increment
    count := (count ifNil: [0]) + 1.
    ^ count"

# Delete a method
python3 smalltalk.py delete-method Counter increment

# Delete a class
python3 smalltalk.py delete-class Counter

Commands

Command	Description
`--check`	Verify VM/image paths and dependencies
`--debug`	Debug hung system (sends SIGUSR1, captures stack trace)
`evaluate <code>`	Execute Smalltalk code, return result
`browse <class>`	Get class metadata (superclass, ivars, methods)
`method-source <class> <selector>`	View method source code
`define-class <definition>`	Create or modify a class
`define-method <class> <source>`	Add or update a method
`delete-method <class> <selector>`	Remove a method
`delete-class <class>`	Remove a class
`list-classes [prefix]`	List classes, optionally filtered
`hierarchy <class>`	Get superclass chain
`subclasses <class>`	Get immediate subclasses
`list-categories`	List all system categories
`classes-in-category <cat>`	List classes in a category

Environment Variables

Variable	Description
`SQUEAK_VM_PATH`	Path to Squeak/Cuis VM executable
`SQUEAK_IMAGE_PATH`	Path to Smalltalk image with MCP server

Notes

Requires xvfb for headless operation on Linux servers
Uses Squeak 6.0 MCP server (GUI stays responsive if display available)
saveImage intentionally excluded for safety

---name: smalltalkdescription: Interact with live Smalltalk image (Cuis or Squeak). Use for evaluating Smalltalk code, browsing classes, viewing method source, defining classes/methods, querying hierarchy and categories.---# Smalltalk SkillExecute Smalltalk code and browse live Squeak/Cuis images via MCP.## Prerequisites**Get the ClaudeSmalltalk repo first:**```bashgit clone https://github.com/CorporateSmalltalkConsultingLtd/ClaudeSmalltalk.git```This repo contains:- MCP server code for Squeak (`MCP-Server-Squeak.st`)- Setup documentation (`SQUEAK-SETUP.md`, `CLAWDBOT-SETUP.md`)- This Clawdbot skill (`clawdbot/`)## Setup1. **Set up Squeak with MCP server** — see [SQUEAK-SETUP.md](https://github.com/CorporateSmalltalkConsultingLtd/ClaudeSmalltalk/blob/main/SQUEAK-SETUP.md)2. **Configure Clawdbot** — see [CLAWDBOT-SETUP.md](https://github.com/CorporateSmalltalkConsultingLtd/ClaudeSmalltalk/blob/main/CLAWDBOT-SETUP.md)## Usage```bash# Check setuppython3 smalltalk.py --check# Evaluate codepython3 smalltalk.py evaluate "3 factorial"python3 smalltalk.py evaluate "Date today"# Browse a classpython3 smalltalk.py browse OrderedCollection# View method sourcepython3 smalltalk.py method-source String asUppercase# List classes (with optional prefix filter)python3 smalltalk.py list-classes Collection# Get class hierarchypython3 smalltalk.py hierarchy OrderedCollection# Get subclasses python3 smalltalk.py subclasses Collection# List all categoriespython3 smalltalk.py list-categories# List classes in a categorypython3 smalltalk.py classes-in-category "Collections-Sequenceable"# Define a new classpython3 smalltalk.py define-class "Object subclass: #Counter instanceVariableNames: 'count' classVariableNames: '' poolDictionaries: '' category: 'MyApp'"# Define a methodpython3 smalltalk.py define-method Counter "increment count := (count ifNil: [0]) + 1. ^ count"# Delete a methodpython3 smalltalk.py delete-method Counter increment# Delete a classpython3 smalltalk.py delete-class Counter```## Commands| Command | Description ||---------|-------------|| `--check` | Verify VM/image paths and dependencies || `--debug` | Debug hung system (sends SIGUSR1, captures stack trace) || `evaluate <code>` | Execute Smalltalk code, return result || `browse <class>` | Get class metadata (superclass, ivars, methods) || `method-source <class> <selector>` | View method source code || `define-class <definition>` | Create or modify a class || `define-method <class> <source>` | Add or update a method || `delete-method <class> <selector>` | Remove a method || `delete-class <class>` | Remove a class || `list-classes [prefix]` | List classes, optionally filtered || `hierarchy <class>` | Get superclass chain || `subclasses <class>` | Get immediate subclasses || `list-categories` | List all system categories || `classes-in-category <cat>` | List classes in a category |## Environment Variables| Variable | Description ||----------|-------------|| `SQUEAK_VM_PATH` | Path to Squeak/Cuis VM executable || `SQUEAK_IMAGE_PATH` | Path to Smalltalk image with MCP server |## Notes- Requires xvfb for headless operation on Linux servers- Uses Squeak 6.0 MCP server (GUI stays responsive if display available)- `saveImage` intentionally excluded for safety

Frequently asked questions

Smalltalk