Punts

A coding agent that lives inside a Smalltalk image.

A coding agent built in Pharo whose tools operate on a live Smalltalk image as first-class objects, not on files. Its edits are transactional: changing a method compiles, tests, and lints in one step and restores the old source if the tests fail, and creating a class removes it again if it fails lint. The tools call Pharo's refactoring engine directly, drawing on the language that has had a refactoring browser for thirty years. Its Morphic workbench is a chat GUI for the agent inside the image itself, with streaming responses and inline tool calls, the Claude Code experience made native to Pharo. Three layers ship today — a Messaging SDK, the Agent SDK, and the Workbench — built on top of Postern; a fourth, a Pharo Agent Bridge, is designed but not yet built.

• A coding agent whose tools operate on live Pharo objects, not files
• Transactional edits — compile, test, and lint in one step; roll back the method on test failure, remove the class on lint failure
• Tools call Pharo's refactoring engine directly, the original refactoring browser
• Agent Workbench — a Morphic chat GUI for the agent inside the image (streaming responses, inline tool-call display, attachments, mode selector), the Claude Code experience native to Pharo
• Anthropic Messages API ported to vanilla Pharo 12 with no external packages
• A broad tool-command surface across a permission policy with named modes: Plan, Default, Accept-edits, Bypass, DontAsk
• No compilation boundary — change code and see the effect immediately in the same live image
• A large, passing test suite in the current image

Drive a live Pharo image from a coding agent or shell.

HTTP server exposing a running Pharo image for agent-driven development. Clients send Smalltalk expressions to /repl and drive compile, test, inspect, and commit loops without the Pharo GUI. The bridge between Claude Code and Smalltalk's live programming environment — where there is no separation between the program and the machine running it.

• HTTP REPL — send Smalltalk expressions to /repl, get back the printString of the result as plain text
• Compile, test, inspect, and commit loops without the GUI
• Cross-platform — macOS, Linux (x86_64, arm64), Windows
• Sandbox-aware — falls back to repo-local runtime in restricted environments
• Live request dashboard — method, path, status, duration, and body for every call
• Token-authenticated — /health and /help stay open, /repl requires an X-Eval-Token when auth is enabled