Language Support — 163 AST-Based Grammars

act supports 163 AST-based grammars in a single native Rust binary. Each language exposes a different mix of refactor, query, and analysis operations. Click any language for the full per-language operation reference an AI agent can call via MCP.

Language	Query	Refactor	Analysis
ActionScript	16	57	30
Ada*	16	56	30
Agda	16	53	30
Angular	16	—	—
Apex	16	72	30
Arduino	16	—	—
Assembly	16	24	30
Astro	16	29	30
AWK	16	—	—
Bash	16	49	30
Bazel	16	—	—
Beancount	16	—	—
BibTeX	16	—	—
Bicep	16	25	30
BigQuery SQL	16	—	—
BitBake	16	—	—
C	16	49	30
Cairo*	16	45	30
Cap'n Proto	16	—	—
Circom*	16	—	—
Clarity*	16	68	30
Clojure	16	51	30
CMake	16	—	—
COBOL*	16	46	30
CoffeeScript	16	65	30
Common Lisp	16	61	30
C++	16	69	30
Crystal	16	58	30
C#	16	95	30
CSS	16	72	30
CUDA*	16	41	30
CUE	16	—	—
D	16	55	30
Dart	16	16	30
Device Tree	16	—	—
Dhall	16	31	30
Django Templates	16	—	—
Dockerfile	16	—	—
Dot/Graphviz	16	—	—
Drools	16	—	—
Elixir	16	50	30
Elm	16	49	30
Elvish	16	72	30
Erlang	16	90	30
FIRRTL*	16	—	—
Fortran*	16	58	30
F#	16	60	30
GDScript	16	57	30
GDShader	16	—	—
Gherkin	16	—	—
Gleam	16	50	30
GLSL*	16	41	30
GN	16	—	—
Go	16	74	30
Go Modules	16	—	—
Go Templates	16	27	30
Godot Resource	16	—	—
GraphQL	16	37	30
Groovy	16	44	30
Hack	16	—	—
Handlebars	16	—	—
Haskell	16	64	30
HCL/Terraform	16	37	30
HEEx	16	—	—
Helm	16	34	30
HLSL*	16	30	30
HOCON	16	—	—
HTML	16	28	30
INI	16	—	—
Java	16	63	30
Javadoc	16	—	—
JavaScript	16	68	30
Jinja	16	28	30
jq	16	—	—
JSDoc	16	—	—
JSON	16	—	—
JSON Schema	16	—	—
JSONC	16	—	—
JSONnet	16	—	—
JSX	16	43	30
Julia	16	60	30
Just	16	—	—
KConfig	16	—	—
Kotlin	16	37	30
Kusto/KQL	16	—	—
LaTeX	16	28	30
Leo*	16	—	—
Liquid	16	—	—
LLVM IR	16	—	—
Lua	16	37	30
Luau	16	44	30
Make	16	—	—
Markdown	16	—	—
MATLAB*	16	53	30
Mermaid	16	—	—
MLIR	16	—	—
Modelica*	16	—	—
Move*	16	60	30
Nginx	16	—	—
Nim	16	49	30
Ninja	16	—	—
Nix	16	36	30
Noir*	16	—	—
Objective-C	16	44	30
OCaml	16	52	30
Odin	16	38	30
P4*	16	—	—
Pascal	16	52	30
Perl	16	64	30
PHP	16	77	30
PowerShell	16	53	30
PromQL	16	—	—
Properties	16	—	—
ProtoBuf	16	26	30
PRQL	16	—	—
Puppet	16	—	—
Python	16	62	30
QML	16	41	30
R	16	50	30
Racket	16	54	30
Razor	16	—	—
Rego	16	—	—
ReScript	16	98	30
Robot Framework	16	—	—
Ruby	16	130	30
Rust	16	84	30
Scala	16	54	30
Scheme	16	—	—
SCSS/Sass	16	52	30
Smalltalk	16	—	—
Snakemake	16	—	—
Solidity*	16	62	30
SOQL	16	—	—
SQL	16	48	30
SQLite	16	—	—
Starlark	16	—	—
Svelte	16	51	30
Sway*	16	—	—
Swift	16	26	30
SystemVerilog*	16	72	30
Tact*	16	—	—
Tcl*	16	—	—
Thrift	16	—	—
TLA+	16	—	—
TOML	16	—	—
TSX	16	70	30
Twig	16	—	—
TypeScript	16	85	30
TypeSpec	16	—	—
V	16	22	30
VB.NET	16	62	30
VCL	16	—	—
Verilog*	16	44	30
VHDL*	16	36	30
Vue	16	36	30
Vyper*	16	47	30
WGSL*	16	54	30
WIT	16	—	—
XML	16	—	—
YAML	16	—	—
YANG	16	—	—
Zig	16	65	30
Zsh	16	—	—

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