make code is a make module that lets you run custom javascript (node 20) or python (3.12) inside your scenarios. scenario data is available as the input global, and whatever you return becomes the module's output. codefmt formats both the javascript and python variants.

make code javascript runs in a node 20 sandbox and exposes input (the scenario data mapped in the UI), console, fetch, process, Buffer, URL, setTimeout, setInterval, clearTimeout, and clearInterval. libraries like lodash, moment, and moment-timezone are preinstalled and available via require(). codefmt recognizes all of these as valid globals.

yes. make code supports python 3.12 in the same module. the python runtime exposes input as the scenario data global, and you return a dict to send output back to make. codefmt has a dedicated python formatter (ruff) and will wrap your code correctly so ruff can parse a bare return statement.

yes. make code javascript modules run in an async context, so top-level await works directly. you can also use return at the top level to set the module's output. codefmt wraps your code in the correct async function before formatting and strips the wrapper afterward.

yes. codefmt runs oxlint on javascript and ruff on python, with make's injected globals registered so you don't get false positives for input, Buffer, URL, and friends. you get instant diagnostics for undefined variables, unused imports, style issues, and common bug patterns before you paste the code back into make.