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vis logo

Vis

Vis is a coding agent that writes Python into a sandboxed GraalPy runtime, keeps durable state outside the context window, and inspects/changes the host project through tools.

Install

One command clones Vis, checks the runtime tools, and puts the vis launcher on your PATH.

macOS & Linux (bash):

curl -fsSL https://raw.githubusercontent.com/Blockether/vis/main/bin/install-source | bash

Then confirm:

vis help

Prereqs: git, java 25+, and the Clojure CLI 1.12+ — the installer checks for them and tells you what's missing. Building the native binary locally needs Oracle GraalVM or GraalVM CE 25+ with at least 16 GB RAM.

What vis runs

vis is the stable command. It proxies to the best available distribution, in this order:

  1. managed native binary from vis update ($VIS_HOME/install, default ~/.vis/install)
  2. repo native binary (target/vis or target/vis.exe)
  3. repo JVM uberjar (target/vis.jar)
  4. live source (clojure -M:vis)

Use vis --jvm ... to skip native and force the JVM path. The JVM path needs a stock JDK 25 (e.g. sdk install java 25.0.3-tem) or a GraalVM matching the pinned Truffle line (graal-25.1.3); a mismatched GraalVM (e.g. CE 25.0.2) is rejected at startup with a clear message.

Build / develop

vis native                       # builds target/vis(.exe) and target/vis.jar
clojure -M:format check
clojure -M:lint src extensions test build.clj
clojure -M:test