PRIOR for Visual Studio Code

Language support for PRIOR, the tiny declarative language for trading strategies.

when $NVDA at [lower_bollinger std=1]
  buy [5% portfolio]

sell when $NVDA at [middle_bollinger]
  or [stop 1.5%]
  or [after 5 bars]

Features

Syntax highlighting for .prior files — keywords, tags, tickers, spreads, timeframes
Completions for the full tag vocabulary, with parameter placeholders and per-tag docs
Hovers — what [lower_bollinger] actually expands to, every parameter and default, prebuilt universe contents
Diagnostics as you type — the real compiler's errors, line-precise, with did-you-mean suggestions
Formatting — prior fmt as the document formatter (canonical statement order and spacing)
Snippets — strategy-meanreversion, strategy-momentum, strategy-wheel, strategy-pairs, strategy-mixed

Requirements

Highlighting, completions, and hovers work out of the box. Diagnostics and formatting shell out to the prior CLI so the editor reports exactly what the compiler will say:

pip install prior-lang

If prior isn't on your PATH, the extension falls back to python3 -m prior_lang.cli, or set prior.command in settings.

Settings

Setting	Default	Description
`prior.command`	`prior`	Command for the prior CLI
`prior.validateOnType`	`true`	Validate as you type (debounced); off = validate on save only

Learn more

PRIOR is built and stewarded by AutoQuant.