diff --git a/CLAUDE.md b/CLAUDE.md
index 356bd09..e0e372d 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -207,6 +207,19 @@ Implementation files:
 
 **Why this matters**: This enables shell-like file paths (`readme.txt`) while supporting dictionary/array access (`config.path`) without quotes, determined entirely at parse time based on lexical scope.
 
+**Array and dict literals**: Square brackets `[]` create both arrays and dicts, distinguished by content:
+- **Arrays**: Space/newline/semicolon-separated args that work like calling a function → `[1 2 3]` (call functions using parens eg `[1 (double 4) 200]`)
+- **Dicts**: NamedArg syntax (key=value pairs) → `[a=1 b=2]` 
+- **Empty array**: `[]` (standard empty brackets)
+- **Empty dict**: `[=]` (exactly this, no spaces)
+
+Implementation details:
+- Grammar rules (shrimp.grammar:194-201): Dict uses `NamedArg` nodes, Array uses `expression` nodes
+- Parser distinguishes at parse time based on whether first element contains `=`
+- Both support multiline, comments, and nesting
+- Separators: spaces, newlines (`\n`), or semicolons (`;`) work interchangeably
+- Test files: `src/parser/tests/literals.test.ts` and `src/compiler/tests/literals.test.ts`
+
 **EOF handling**: The grammar uses `(statement | newlineOrSemicolon)+ eof?` to handle empty lines and end-of-file without infinite loops.
 
 ## Compiler Architecture
diff --git a/bin/repl b/bin/repl
index b614e26..052f481 100755
--- a/bin/repl
+++ b/bin/repl
@@ -1,24 +1,12 @@
 #!/usr/bin/env bun
 
 import { Compiler } from '../src/compiler/compiler'
-import { VM, type Value, Scope, bytecodeToString } from 'reefvm'
+import { colors, formatValue, globals } from '../src/prelude'
+import { VM, Scope, bytecodeToString } from 'reefvm'
 import * as readline from 'readline'
 import { readFileSync, writeFileSync } from 'fs'
 import { basename } from 'path'
 
-const colors = {
-  reset: '\x1b[0m',
-  bright: '\x1b[1m',
-  dim: '\x1b[2m',
-  cyan: '\x1b[36m',
-  yellow: '\x1b[33m',
-  green: '\x1b[32m',
-  red: '\x1b[31m',
-  blue: '\x1b[34m',
-  magenta: '\x1b[35m',
-  pink: '\x1b[38;2;255;105;180m'
-}
-
 async function repl() {
   const commands = ['/clear', '/reset', '/vars', '/funcs', '/history', '/bytecode', '/exit', '/save', '/quit']
 
@@ -60,7 +48,7 @@ async function repl() {
       return
     }
 
-    vm ||= new VM({ instructions: [], constants: [] }, nativeFunctions)
+    vm ||= new VM({ instructions: [], constants: [] }, globals)
 
     if (['/exit', 'exit', '/quit', 'quit'].includes(trimmed)) {
       console.log(`\n${colors.yellow}Goodbye!${colors.reset}`)
@@ -159,7 +147,7 @@ async function repl() {
     codeHistory.push(trimmed)
 
     try {
-      const compiler = new Compiler(trimmed)
+      const compiler = new Compiler(trimmed, Object.keys(globals))
 
       vm.appendBytecode(compiler.bytecode)
 
@@ -186,40 +174,6 @@ async function repl() {
   })
 }
 
-
-function formatValue(value: Value, inner = false): string {
-  switch (value.type) {
-    case 'string':
-      return `${colors.green}'${value.value}'${colors.reset}`
-    case 'number':
-      return `${colors.cyan}${value.value}${colors.reset}`
-    case 'boolean':
-      return `${colors.yellow}${value.value}${colors.reset}`
-    case 'null':
-      return `${colors.dim}null${colors.reset}`
-    case 'array': {
-      const items = value.value.map(x => formatValue(x, true)).join(' ')
-      return `${inner ? '(' : ''}${colors.blue}list${colors.reset} ${items}${inner ? ')' : ''}`
-    }
-    case 'dict': {
-      const entries = Array.from(value.value.entries())
-        .map(([k, v]) => `${k}=${formatValue(v, true)}`)
-        .join(' ')
-      return `${inner ? '(' : ''}${colors.magenta}dict${colors.reset} ${entries}${inner ? ')' : ''}`
-    }
-    case 'function': {
-      const params = value.params.join(', ')
-      return `${colors.dim}<fn(${params})>${colors.reset}`
-    }
-    case 'native':
-      return `${colors.dim}<native-fn>${colors.reset}`
-    case 'regex':
-      return `${colors.magenta}${value.value}${colors.reset}`
-    default:
-      return String(value)
-  }
-}
-
 function formatVariables(scope: Scope, onlyFunctions = false): string {
   const vars: string[] = []
 
@@ -257,7 +211,7 @@ async function loadFile(filePath: string): Promise<{ vm: VM; codeHistory: string
 
     console.log(`${colors.dim}Loading ${basename(filePath)}...${colors.reset}`)
 
-    const vm = new VM({ instructions: [], constants: [] }, nativeFunctions)
+    const vm = new VM({ instructions: [], constants: [] }, globals)
     await vm.run()
 
     const codeHistory: string[] = []
@@ -313,43 +267,4 @@ function showWelcome() {
   console.log()
 }
 
-const nativeFunctions = {
-  echo: (...args: any[]) => {
-    console.log(...args)
-  },
-  len: (value: any) => {
-    if (typeof value === 'string') return value.length
-    if (Array.isArray(value)) return value.length
-    if (value && typeof value === 'object') return Object.keys(value).length
-    return 0
-  },
-  type: (value: any) => {
-    if (value === null) return 'null'
-    if (Array.isArray(value)) return 'array'
-    return typeof value
-  },
-  range: (start: number, end: number | null) => {
-    if (end === null) {
-      end = start
-      start = 0
-    }
-    const result: number[] = []
-    for (let i = start; i <= end; i++) {
-      result.push(i)
-    }
-    return result
-  },
-  join: (arr: any[], sep: string = ',') => {
-    return arr.join(sep)
-  },
-  split: (str: string, sep: string = ',') => {
-    return str.split(sep)
-  },
-  upper: (str: string) => str.toUpperCase(),
-  lower: (str: string) => str.toLowerCase(),
-  trim: (str: string) => str.trim(),
-  list: (...args: any[]) => args,
-  dict: (atNamed = {}) => atNamed
-}
-
 await repl()
diff --git a/bin/shrimp b/bin/shrimp
index eed1d48..49cd7f3 100755
--- a/bin/shrimp
+++ b/bin/shrimp
@@ -1,57 +1,18 @@
 #!/usr/bin/env bun
 
 import { Compiler } from '../src/compiler/compiler'
-import { VM, toValue, fromValue, bytecodeToString } from 'reefvm'
+import { colors, globals } from '../src/prelude'
+import { VM, fromValue, bytecodeToString } from 'reefvm'
 import { readFileSync, writeFileSync, mkdirSync } from 'fs'
 import { randomUUID } from "crypto"
 import { spawn } from 'child_process'
 import { join } from 'path'
 
-const colors = {
-  reset: '\x1b[0m',
-  bright: '\x1b[1m',
-  dim: '\x1b[2m',
-  red: '\x1b[31m',
-  yellow: '\x1b[33m',
-  cyan: '\x1b[36m',
-  magenta: '\x1b[35m',
-  pink: '\x1b[38;2;255;105;180m'
-}
-
-const nativeFunctions = {
-  echo: (...args: any[]) => console.log(...args),
-  len: (value: any) => {
-    if (typeof value === 'string') return value.length
-    if (Array.isArray(value)) return value.length
-    if (value && typeof value === 'object') return Object.keys(value).length
-    return 0
-  },
-  type: (value: any) => toValue(value).type,
-  range: (start: number, end: number | null) => {
-    if (end === null) {
-      end = start
-      start = 0
-    }
-    const result: number[] = []
-    for (let i = start; i <= end; i++) {
-      result.push(i)
-    }
-    return result
-  },
-  join: (arr: any[], sep: string = ',') => arr.join(sep),
-  split: (str: string, sep: string = ',') => str.split(sep),
-  upper: (str: string) => str.toUpperCase(),
-  lower: (str: string) => str.toLowerCase(),
-  trim: (str: string) => str.trim(),
-  list: (...args: any[]) => args,
-  dict: (atNamed = {}) => atNamed
-}
-
 async function runFile(filePath: string) {
   try {
     const code = readFileSync(filePath, 'utf-8')
-    const compiler = new Compiler(code)
-    const vm = new VM(compiler.bytecode, nativeFunctions)
+    const compiler = new Compiler(code, Object.keys(globals))
+    const vm = new VM(compiler.bytecode, globals)
     await vm.run()
     return vm.stack.length ? fromValue(vm.stack[vm.stack.length - 1]) : null
   } catch (error: any) {
diff --git a/bun.lock b/bun.lock
index 7561a48..005ca60 100644
--- a/bun.lock
+++ b/bun.lock
@@ -62,7 +62,7 @@
 
     "hono": ["hono@4.9.8", "", {}, "sha512-JW8Bb4RFWD9iOKxg5PbUarBYGM99IcxFl2FPBo2gSJO11jjUDqlP1Bmfyqt8Z/dGhIQ63PMA9LdcLefXyIasyg=="],
 
-    "reefvm": ["reefvm@git+https://git.nose.space/defunkt/reefvm#e54207067734d2186cd788c3654b675b493c2585", { "peerDependencies": { "typescript": "^5" } }, "e54207067734d2186cd788c3654b675b493c2585"],
+    "reefvm": ["reefvm@git+https://git.nose.space/defunkt/reefvm#030eb7487165b3ba502965a8b7fa09c4b5fdb0da", { "peerDependencies": { "typescript": "^5" } }, "030eb7487165b3ba502965a8b7fa09c4b5fdb0da"],
 
     "style-mod": ["style-mod@4.1.2", "", {}, "sha512-wnD1HyVqpJUI2+eKZ+eo1UwghftP6yuFheBqqe+bWCotBjC2K1YnteJILRMs3SM4V/0dLEW1SC27MWP5y+mwmw=="],
 
diff --git a/example.shrimp b/example.shrimp
index 53c563b..f1a9a05 100644
--- a/example.shrimp
+++ b/example.shrimp
@@ -42,13 +42,13 @@ a-file = file.txt
 3
 
 # symbols can be assigned to functions. The body of the function comes after a colon `:`
-add = fn x y: x + y
+add = do x y: x + y
 add 1 2
 ---
 3
 
 # Functions can have multiple lines, they are terminated with `end`
-sub = fn x y:
+sub = do x y:
   x - y
 end
 
@@ -82,9 +82,25 @@ add 1 (sub 5 2)
 4
 
 
+# Arrays use square brackets with space-separated elements
+numbers = [1 2 3]
+shopping-list = [apples bananas carrots]
+empty-array = []
+
+# Dicts use square brackets with key=value pairs
+config = [name=Shrimp version=1.0 debug=true]
+empty-dict = [=]  
+
+# Nested structures work naturally
+nested = [
+  users=[
+    [name=Alice age=30]
+    [name=Bob age=25]
+  ]
+  settings=[debug=true timeout=5000]
+]
+
 # HOLD UP
 
-- how do we handle arrays?
-- how do we handle hashes?
 - conditionals
 - loops
\ No newline at end of file
diff --git a/package.json b/package.json
index 4adf26d..2ac8e0c 100644
--- a/package.json
+++ b/package.json
@@ -3,13 +3,11 @@
   "version": "0.1.0",
   "private": true,
   "type": "module",
-  "workspaces": [
-    "packages/*"
-  ],
   "scripts": {
     "dev": "bun generate-parser && bun --hot src/server/server.tsx",
     "generate-parser": "lezer-generator src/parser/shrimp.grammar --typeScript -o src/parser/shrimp.ts",
-    "repl": "bun generate-parser && bun bin/repl"
+    "repl": "bun generate-parser && bun bin/repl",
+    "update-reef": "cd packages/ReefVM && git pull origin main"
   },
   "dependencies": {
     "@codemirror/view": "^6.38.3",
diff --git a/src/compiler/compiler.ts b/src/compiler/compiler.ts
index b7e6274..e6b006b 100644
--- a/src/compiler/compiler.ts
+++ b/src/compiler/compiler.ts
@@ -1,6 +1,7 @@
 import { CompilerError } from '#compiler/compilerError.ts'
 import { parser } from '#parser/shrimp.ts'
 import * as terms from '#parser/shrimp.terms'
+import { setGlobals } from '#parser/tokenizer'
 import type { SyntaxNode, Tree } from '@lezer/common'
 import { assert, errorMessage } from '#utils/utils'
 import { toBytecode, type Bytecode, type ProgramItem, bytecodeToString } from 'reefvm'
@@ -53,8 +54,9 @@ export class Compiler {
   bytecode: Bytecode
   pipeCounter = 0
 
-  constructor(public input: string) {
+  constructor(public input: string, globals?: string[]) {
     try {
+      if (globals) setGlobals(globals)
       const cst = parser.parse(input)
       const errors = checkTreeForErrors(cst)
 
@@ -218,6 +220,9 @@ export class Compiler {
           case '/':
             instructions.push(['DIV'])
             break
+          case '%':
+            instructions.push(['MOD'])
+            break
           default:
             throw new CompilerError(`Unsupported binary operator: ${opValue}`, op.from, op.to)
         }
@@ -265,6 +270,9 @@ export class Compiler {
       }
 
       case terms.FunctionCallOrIdentifier: {
+        if (node.firstChild?.name === 'DotGet')
+          return this.#compileNode(node.firstChild, input)
+
         return [['TRY_CALL', value]]
       }
 
@@ -358,7 +366,7 @@ export class Compiler {
 
         const opValue = input.slice(op.from, op.to)
         switch (opValue) {
-          case '=':
+          case '==':
             instructions.push(...leftInstructions, ...rightInstructions, ['EQ'])
             break
 
@@ -468,6 +476,44 @@ export class Compiler {
         return instructions
       }
 
+      case terms.Array: {
+        const children = getAllChildren(node)
+
+        // We can easily parse [=] as an empty dict, but `[ = ]` is tougher.
+        // = can be a valid word, and is also valid inside words, so for now we cheat
+        // and check for arrays that look like `[ = ]` to interpret them as
+        // empty dicts
+        if (children.length === 1 && children[0]!.name === 'Word') {
+          const child = children[0]!
+          if (input.slice(child.from, child.to) === '=') {
+            return [['MAKE_DICT', 0]]
+          }
+        }
+
+        const instructions: ProgramItem[] = children.map((x) => this.#compileNode(x, input)).flat()
+        instructions.push(['MAKE_ARRAY', children.length])
+        return instructions
+      }
+
+      case terms.Dict: {
+        const children = getAllChildren(node)
+        const instructions: ProgramItem[] = []
+
+        children.forEach((node) => {
+          const keyNode = node.firstChild
+          const valueNode = node.firstChild!.nextSibling
+
+          // name= -> name
+          const key = input.slice(keyNode!.from, keyNode!.to).slice(0, -1)
+          instructions.push(['PUSH', key])
+
+          instructions.push(...this.#compileNode(valueNode!, input))
+        })
+
+        instructions.push(['MAKE_DICT', children.length])
+        return instructions
+      }
+
       default:
         throw new CompilerError(
           `Compiler doesn't know how to handle a "${node.type.name}" node.`,
diff --git a/src/compiler/tests/compiler.test.ts b/src/compiler/tests/compiler.test.ts
index 46ee0b7..ef02035 100644
--- a/src/compiler/tests/compiler.test.ts
+++ b/src/compiler/tests/compiler.test.ts
@@ -38,6 +38,12 @@ describe('compiler', () => {
     expect('15 / 3').toEvaluateTo(5)
   })
 
+  test('modulo', () => {
+    expect('44 % 2').toEvaluateTo(0)
+    expect('44 % 3').toEvaluateTo(2)
+    expect('3 % 4').toEvaluateTo(3)
+  })
+
   test('assign number', () => {
     expect('x = 5').toEvaluateTo(5)
   })
@@ -105,7 +111,7 @@ describe('compiler', () => {
     expect(`(10 > 20)`).toEvaluateTo(false)
     expect(`(4 <= 9)`).toEvaluateTo(true)
     expect(`(15 >= 20)`).toEvaluateTo(false)
-    expect(`(7 = 7)`).toEvaluateTo(true)
+    expect(`(7 == 7)`).toEvaluateTo(true)
     expect(`(5 != 5)`).toEvaluateTo(false)
     expect(`('shave' and 'haircut')`).toEvaluateTo('haircut')
     expect(`(false and witness)`).toEvaluateTo(false)
diff --git a/src/compiler/tests/literals.test.ts b/src/compiler/tests/literals.test.ts
new file mode 100644
index 0000000..666a4b5
--- /dev/null
+++ b/src/compiler/tests/literals.test.ts
@@ -0,0 +1,157 @@
+import { describe } from 'bun:test'
+import { expect, test } from 'bun:test'
+
+describe('array literals', () => {
+  test('work with numbers', () => {
+    expect('[1 2 3]').toEvaluateTo([1, 2, 3])
+  })
+
+  test('work with strings', () => {
+    expect("['one' 'two' 'three']").toEvaluateTo(['one', 'two', 'three'])
+  })
+
+  test('work with identifiers', () => {
+    expect('[one two three]').toEvaluateTo(['one', 'two', 'three'])
+  })
+
+  test('can be nested', () => {
+    expect('[one [two [three]]]').toEvaluateTo(['one', ['two', ['three']]])
+  })
+
+  test('can span multiple lines', () => {
+    expect(`[
+      1
+      2
+      3
+    ]`).toEvaluateTo([1, 2, 3])
+  })
+
+  test('can span multiple w/o calling functions', () => {
+    expect(`[
+      one
+      two
+      three
+    ]`).toEvaluateTo(['one', 'two', 'three'])
+  })
+
+  test('empty arrays', () => {
+    expect('[]').toEvaluateTo([])
+  })
+
+  test('mixed types', () => {
+    expect("[1 'two' three true null]").toEvaluateTo([1, 'two', 'three', true, null])
+  })
+
+  test('semicolons as separators', () => {
+    expect('[1; 2; 3]').toEvaluateTo([1, 2, 3])
+  })
+
+  test('expressions in arrays', () => {
+    expect('[(1 + 2) (3 * 4)]').toEvaluateTo([3, 12])
+  })
+
+  test('mixed separators - spaces and newlines', () => {
+    expect(`[1 2
+3 4]`).toEvaluateTo([1, 2, 3, 4])
+  })
+
+  test('mixed separators - spaces and semicolons', () => {
+    expect('[1 2; 3 4]').toEvaluateTo([1, 2, 3, 4])
+  })
+
+  test('empty lines within arrays', () => {
+    expect(`[1
+
+2]`).toEvaluateTo([1, 2])
+  })
+
+  test('comments within arrays', () => {
+    expect(`[1 # first
+  2 # second
+  ]`).toEvaluateTo([1, 2])
+  })
+
+  test('complex nested multiline', () => {
+    expect(`[
+  [1 2]
+  [3 4]
+  [5 6]
+]`).toEvaluateTo([
+      [1, 2],
+      [3, 4],
+      [5, 6],
+    ])
+  })
+
+  test('boolean and null literals', () => {
+    expect('[true false null]').toEvaluateTo([true, false, null])
+  })
+
+  test('regex literals', () => {
+    expect('[//[0-9]+//]').toEvaluateTo([/[0-9]+/])
+  })
+
+  test('trailing newlines', () => {
+    expect(`[
+1
+2
+]`).toEvaluateTo([1, 2])
+  })
+})
+
+describe('dict literals', () => {
+  test('work with numbers', () => {
+    expect('[a=1 b=2 c=3]').toEvaluateTo({ a: 1, b: 2, c: 3 })
+  })
+
+  test('work with strings', () => {
+    expect("[a='one' b='two' c='three']").toEvaluateTo({ a: 'one', b: 'two', c: 'three' })
+  })
+
+  test('work with identifiers', () => {
+    expect('[a=one b=two c=three]').toEvaluateTo({ a: 'one', b: 'two', c: 'three' })
+  })
+
+  test('can be nested', () => {
+    expect('[a=one b=[two [c=three]]]').toEvaluateTo({ a: 'one', b: ['two', { c: 'three' }] })
+  })
+
+  test('can span multiple lines', () => {
+    expect(`[
+        a=1
+        b=2
+        c=3
+      ]`).toEvaluateTo({ a: 1, b: 2, c: 3 })
+  })
+
+  test('empty dict', () => {
+    expect('[=]').toEvaluateTo({})
+    expect('[ = ]').toEvaluateTo({})
+  })
+
+  test('mixed types', () => {
+    expect("[a=1 b='two' c=three d=true e=null]").toEvaluateTo({
+      a: 1,
+      b: 'two',
+      c: 'three',
+      d: true,
+      e: null,
+    })
+  })
+
+  test('semicolons as separators', () => {
+    expect('[a=1; b=2; c=3]').toEvaluateTo({ a: 1, b: 2, c: 3 })
+  })
+
+  test('expressions in dicts', () => {
+    expect('[a=(1 + 2) b=(3 * 4)]').toEvaluateTo({ a: 3, b: 12 })
+  })
+
+  test('empty lines within dicts', () => {
+    expect(`[a=1
+
+  b=2
+
+  c=3]`).toEvaluateTo({ a: 1, b: 2, c: 3 })
+  })
+})
diff --git a/src/parser/operatorTokenizer.ts b/src/parser/operatorTokenizer.ts
index 478c20d..ee1dc44 100644
--- a/src/parser/operatorTokenizer.ts
+++ b/src/parser/operatorTokenizer.ts
@@ -8,6 +8,7 @@ const operators: Array<Operator> = [
   { str: '>=', tokenName: 'Gte' },
   { str: '<=', tokenName: 'Lte' },
   { str: '!=', tokenName: 'Neq' },
+  { str: '==', tokenName: 'EqEq' },
 
   // // Single-char operators
   { str: '*', tokenName: 'Star' },
@@ -17,6 +18,7 @@ const operators: Array<Operator> = [
   { str: '-', tokenName: 'Minus' },
   { str: '>', tokenName: 'Gt' },
   { str: '<', tokenName: 'Lt' },
+  { str: '%', tokenName: 'Modulo' },
 ]
 
 export const operatorTokenizer = new ExternalTokenizer((input: InputStream) => {
diff --git a/src/parser/shrimp.grammar b/src/parser/shrimp.grammar
index 0968765..f74f5ea 100644
--- a/src/parser/shrimp.grammar
+++ b/src/parser/shrimp.grammar
@@ -6,7 +6,7 @@
 
 @top Program { item* }
 
-@external tokens operatorTokenizer from "./operatorTokenizer" { Star, Slash, Plus, Minus, And, Or, Eq, Neq, Lt, Lte, Gt, Gte }
+@external tokens operatorTokenizer from "./operatorTokenizer" { Star, Slash, Plus, Minus, And, Or, Eq, EqEq, Neq, Lt, Lte, Gt, Gte, Modulo }
 
 @tokens {
   @precedence { Number Regex }
@@ -33,6 +33,9 @@
 
 @precedence {
   pipe @left,
+  or @left,
+  and @left,
+  comparison @left,
   multiplicative @left,
   additive @left,
   call
@@ -52,6 +55,7 @@ consumeToTerminator {
   FunctionDef |
   Assign |
   BinOp |
+  ConditionalOp |
   expressionWithoutIdentifier
 }
 
@@ -129,14 +133,14 @@ SingleLineThenBlock {
 }
 
 ConditionalOp {
-  expression Eq expression |
-  expression Neq expression |
-  expression Lt expression |
-  expression Lte expression |
-  expression Gt expression |
-  expression Gte expression |
-  expression And (expression | ConditionalOp) |
-  expression Or (expression | ConditionalOp)
+  expression !comparison EqEq expression |
+  expression !comparison Neq expression |
+  expression !comparison Lt expression |
+  expression !comparison Lte expression |
+  expression !comparison Gt expression |
+  expression !comparison Gte expression |
+  (expression | ConditionalOp) !and And (expression | ConditionalOp) |
+  (expression | ConditionalOp) !or Or (expression | ConditionalOp)
 }
 
 Params {
@@ -148,6 +152,7 @@ Assign {
 }
 
 BinOp {
+  expression !multiplicative Modulo expression |
   (expression | BinOp) !multiplicative Star (expression | BinOp) |
   (expression | BinOp) !multiplicative Slash (expression | BinOp) |
   (expression | BinOp) !additive Plus (expression | BinOp) |
@@ -191,6 +196,15 @@ EscapeSeq {
   "\\" ("$" | "n" | "t" | "r" | "\\" | "'")
 }
 
+Dict {
+  "[=]" |
+  "[" newlineOrSemicolon* NamedArg (newlineOrSemicolon | NamedArg)* "]"
+}
+
+Array {
+  "[" newlineOrSemicolon* (expression (newlineOrSemicolon | expression)*)? "]"
+}
+
 // We need expressionWithoutIdentifier to avoid conflicts in consumeToTerminator.
 // Without this, when parsing "my-var" at statement level, the parser can't decide:
 //   - ambiguousFunctionCall → FunctionCallOrIdentifier → Identifier
@@ -200,7 +214,7 @@ EscapeSeq {
 // to go through ambiguousFunctionCall (which is what we want semantically).
 // Yes, it is annoying and I gave up trying to use GLR to fix it.
 expressionWithoutIdentifier {
-  ParenExpr | Word | String | Number | Boolean | Regex | @specialize[@name=Null]<Identifier, "null">
+  ParenExpr | Word | String | Number | Boolean | Regex | Dict | Array | @specialize[@name=Null]<Identifier, "null">
 }
 
 block {
diff --git a/src/parser/shrimp.terms.ts b/src/parser/shrimp.terms.ts
index 6ea2f2a..144d69b 100644
--- a/src/parser/shrimp.terms.ts
+++ b/src/parser/shrimp.terms.ts
@@ -7,43 +7,47 @@ export const
   And = 5,
   Or = 6,
   Eq = 7,
-  Neq = 8,
-  Lt = 9,
-  Lte = 10,
-  Gt = 11,
-  Gte = 12,
-  Identifier = 13,
-  AssignableIdentifier = 14,
-  Word = 15,
-  IdentifierBeforeDot = 16,
-  Do = 17,
-  Program = 18,
-  PipeExpr = 19,
-  FunctionCall = 20,
-  DotGet = 21,
-  Number = 22,
-  ParenExpr = 23,
-  FunctionCallOrIdentifier = 24,
-  BinOp = 25,
-  String = 26,
-  StringFragment = 27,
-  Interpolation = 28,
-  EscapeSeq = 29,
-  Boolean = 30,
-  Regex = 31,
-  Null = 32,
-  ConditionalOp = 33,
-  FunctionDef = 34,
-  Params = 35,
-  colon = 36,
-  keyword = 50,
-  PositionalArg = 38,
-  Underscore = 39,
-  NamedArg = 40,
-  NamedArgPrefix = 41,
-  IfExpr = 43,
-  SingleLineThenBlock = 45,
-  ThenBlock = 46,
-  ElseIfExpr = 47,
-  ElseExpr = 49,
-  Assign = 51
+  EqEq = 8,
+  Neq = 9,
+  Lt = 10,
+  Lte = 11,
+  Gt = 12,
+  Gte = 13,
+  Modulo = 14,
+  Identifier = 15,
+  AssignableIdentifier = 16,
+  Word = 17,
+  IdentifierBeforeDot = 18,
+  Do = 19,
+  Program = 20,
+  PipeExpr = 21,
+  FunctionCall = 22,
+  DotGet = 23,
+  Number = 24,
+  ParenExpr = 25,
+  FunctionCallOrIdentifier = 26,
+  BinOp = 27,
+  String = 28,
+  StringFragment = 29,
+  Interpolation = 30,
+  EscapeSeq = 31,
+  Boolean = 32,
+  Regex = 33,
+  Dict = 34,
+  NamedArg = 35,
+  NamedArgPrefix = 36,
+  FunctionDef = 37,
+  Params = 38,
+  colon = 39,
+  keyword = 54,
+  Underscore = 41,
+  Array = 42,
+  Null = 43,
+  ConditionalOp = 44,
+  PositionalArg = 45,
+  IfExpr = 47,
+  SingleLineThenBlock = 49,
+  ThenBlock = 50,
+  ElseIfExpr = 51,
+  ElseExpr = 53,
+  Assign = 55
diff --git a/src/parser/shrimp.ts b/src/parser/shrimp.ts
index 40ba69f..da34621 100644
--- a/src/parser/shrimp.ts
+++ b/src/parser/shrimp.ts
@@ -4,24 +4,24 @@ import {operatorTokenizer} from "./operatorTokenizer"
 import {tokenizer, specializeKeyword} from "./tokenizer"
 import {trackScope} from "./scopeTracker"
 import {highlighting} from "./highlight"
-const spec_Identifier = {__proto__:null,null:64, end:74, if:88, elseif:96, else:100}
+const spec_Identifier = {__proto__:null,end:80, null:86, if:96, elseif:104, else:108}
 export const parser = LRParser.deserialize({
   version: 14,
-  states: "/SQYQbOOO!TOpO'#CqO#aQcO'#CtO$ZOSO'#CvO%aQcO'#DsOOQa'#Ds'#DsO&gQcO'#DrO'OQRO'#CuO'^QcO'#DnO'uQbO'#D{OOQ`'#DO'#DOO'}QbO'#CsOOQ`'#Do'#DoO(oQbO'#DnO(}QbO'#EROOQ`'#DX'#DXO)lQRO'#DaOOQ`'#Dn'#DnO)qQQO'#DmOOQ`'#Dm'#DmOOQ`'#Db'#DbQYQbOOO)yObO,59]OOQa'#Dr'#DrOOQ`'#DS'#DSO*RQbO'#DUOOQ`'#EQ'#EQOOQ`'#Df'#DfO*]QbO,59[O*pQbO'#CxO*xQWO'#CyOOOO'#Du'#DuOOOO'#Dc'#DcO+^OSO,59bOOQa,59b,59bO(}QbO,59aO(}QbO,59aOOQ`'#Dd'#DdO+lQbO'#DPO+tQQO,5:gO+yQRO,59_O-`QRO'#CuO-pQRO,59_O-|QQO,59_O.RQQO,59_O.ZQbO'#DgO.fQbO,59ZO.wQRO,5:mO/OQQO,5:mO/TQbO,59{OOQ`,5:X,5:XOOQ`-E7`-E7`OOQa1G.w1G.wOOQ`,59p,59pOOQ`-E7d-E7dOOOO,59d,59dOOOO,59e,59eOOOO-E7a-E7aOOQa1G.|1G.|OOQa1G.{1G.{O/_QcO1G.{OOQ`-E7b-E7bO/yQbO1G0ROOQa1G.y1G.yO(}QbO,59iO(}QbO,59iO!YQbO'#CtO$iQbO'#CpOOQ`,5:R,5:ROOQ`-E7e-E7eO0WQbO1G0XOOQ`1G/g1G/gO0eQbO7+%mO0jQbO7+%nOOQO1G/T1G/TO0zQRO1G/TOOQ`'#DZ'#DZO1UQbO7+%sO1ZQbO7+%tOOQ`<<IX<<IXOOQ`'#De'#DeO1qQQO'#DeO1vQbO'#EOO2^QbO<<IYOOQ`<<I_<<I_OOQ`'#D['#D[O2cQbO<<I`OOQ`,5:P,5:POOQ`-E7c-E7cOOQ`AN>tAN>tO(}QbO'#D]OOQ`'#Dh'#DhO2nQbOAN>zO2yQQO'#D_OOQ`AN>zAN>zO3OQbOAN>zO3TQRO,59wO3[QQO,59wOOQ`-E7f-E7fOOQ`G24fG24fO3aQbOG24fO3fQQO,59yO3kQQO1G/cOOQ`LD*QLD*QO0jQbO1G/eO1ZQbO7+$}OOQ`7+%P7+%POOQ`<<Hi<<Hi",
-  stateData: "3s~O!_OS!`OS~O]QO^`O_TO`POaXOfTOnTOoTOpTO|^O!eZO!hRO!qcO~O!dfO~O]gO_TO`POaXOfTOnTOoTOpTOwhOyiO!eZO!hROzhX!qhX!whX!shXuhX~OP!fXQ!fXR!fXS!fXT!fXU!fXV!fXW!fXX!fXY!fXZ!fX[!fX~P!YOkoO!hrO!jmO!knO~O]gO_TO`POaXOfTOnTOoTOpTOwhOyiO!eZO!hRO~OP!gXQ!gXR!gXS!gX!q!gX!w!gXT!gXU!gXV!gXW!gXX!gXY!gXZ!gX[!gX!s!gXu!gX~P$iOP!fXQ!fXR!fXS!fX!q!bX!w!bXu!bX~OPsOQsORtOStO~OPsOQsORtOStO!q!bX!w!bXu!bX~O]uOtsP~O]QO_TO`POaXOfTOnTOoTOpTO!eZO!hRO~Oz}O!q!bX!w!bXu!bX~O]gO_TO`POfTOnTOoTOpTO!eZO!hRO~OV!RO~O!q!SO!w!SO~O]!UOf!UO~OaXOw!VO~P(}Ozda!qda!wda!sdauda~P$iO]!XO!eZO~O!h!YO!j!YO!k!YO!l!YO!m!YO!n!YO~OkoO!h![O!jmO!knO~O]uOtsX~Ot!`O~O!s!aOP!fXQ!fXR!fXS!fXT!fXU!fXV!fXW!fXX!fXY!fXZ!fX[!fX~OT!cOU!cOV!bOW!bOX!bOY!bOZ!bO[!bO~OPsOQsORtOStO~P,tOPsOQsORtOStO!s!aO~Oz}O!s!aO~O]!dO`PO!eZO~Oz}O!qca!wca!scauca~Ot!hO~P,tOt!hO~O^`O|^O~P'}OPsOQsORiiSii!qii!wii!siiuii~O^`O|^O!q!kO~P'}O^`O|^O!q!pO~P'}Ou!qO~O^`O|^O!q!rOu!rP~P'}O!sqitqi~P,tOu!vO~O^`O|^O!q!rOu!rP!Q!rP!S!rP~P'}O!q!yO~O^`O|^O!q!rOu!rX!Q!rX!S!rX~P'}Ou!{O~Ou#QO!Q!|O!S#PO~Ou#VO!Q!|O!S#PO~Ot#XO~Ou#VO~Ot#YO~P,tOt#YO~Ou#ZO~O!q#[O~O!q#]O~Ofo~",
-  goto: ",`!wPPPPPPPPPPPPPPPPPPP!x#X#gP$V#X$x%_P%x%xPPP%|&Y&sPP&vP&vPP&}P'Z'^'gP'kP&}'q'w'}(T(^(g(nPPPP(t(x)^PP)p*mP+[PPPPP+`+`P+sP+{,S,SdaOe!R!`!h!k!p!t#[#]R{Zi[OZe}!R!`!h!k!p!t#[#]fQOZe!R!`!h!k!p!t#[#]hgQS^ilst!b!c!d!e!|R!d}fSOZe!R!`!h!k!p!t#[#]hTQS^ilst!b!c!d!e!|Q!XmR!e}dWOe!R!`!h!k!p!t#[#]QzZQ!]sR!^t!PTOQSZ^eilst!R!`!b!c!d!e!h!k!p!t!|#[#]ToRqQ{ZQ!Q^Q!l!cR#T!|daOe!R!`!h!k!p!t#[#]YhQSl!d!eQ{ZR!ViRwXZjQSl!d!eeaOe!R!`!h!k!p!t#[#]R!o!hQ!x!pQ#^#[R#_#]T!}!x#OQ#R!xR#W#OQeOR!TeQqRR!ZqQvXR!_vW!t!k!p#[#]R!z!tWlQS!d!eR!WlS!O]|R!g!OQ#O!xR#U#OTdOeSbOeQ!i!RQ!j!`Q!n!hZ!s!k!p!t#[#]d]Oe!R!`!h!k!p!t#[#]Q|ZR!f}dVOe!R!`!h!k!p!t#[#]YhQSl!d!eQyZQ!P^Q!ViQ!]sQ!^tQ!l!bQ!m!cR#S!|dUOe!R!`!h!k!p!t#[#]hgQS^ilst!b!c!d!e!|RxZTpRqsYOQSZeil!R!`!d!e!h!k!p!t#[#]Q!u!kV!w!p#[#]ZkQSl!d!ee_Oe!R!`!h!k!p!t#[#]",
-  nodeNames: "⚠ Star Slash Plus Minus And Or Eq Neq Lt Lte Gt Gte Identifier AssignableIdentifier Word IdentifierBeforeDot Do Program PipeExpr FunctionCall DotGet Number ParenExpr FunctionCallOrIdentifier BinOp String StringFragment Interpolation EscapeSeq Boolean Regex Null ConditionalOp FunctionDef Params colon keyword PositionalArg Underscore NamedArg NamedArgPrefix operator IfExpr keyword SingleLineThenBlock ThenBlock ElseIfExpr keyword ElseExpr keyword Assign",
-  maxTerm: 85,
+  states: "3UQYQbOOO!ZOpO'#CsO#mQcO'#CvO$jOSO'#CxO$xQbO'#EVOOQ`'#DR'#DROOQa'#DO'#DOO%{QbO'#DWO'QQcO'#DzOOQa'#Dz'#DzO)UQcO'#DyO)}QRO'#CwO*bQcO'#DuO*yQcO'#DuO+[QbO'#CuOOQ`'#Dv'#DvO,SQbO'#DuO,bQbO'#E]OOQ`'#D]'#D]O-VQRO'#DeOOQ`'#Du'#DuO-[QQO'#DtOOQ`'#Dt'#DtOOQ`'#Df'#DfQYQbOOO-dObO,59_O-lQbO'#DPOOQa'#Dy'#DyOOQ`'#DZ'#DZOOQ`'#E['#E[OOQ`'#Dm'#DmO-vQbO,59^O.ZQbO'#CzO.cQWO'#C{OOOO'#D|'#D|OOOO'#Dg'#DgO.wOSO,59dOOQa,59d,59dOOQ`'#Di'#DiO/VQbO'#DSO/_QQO,5:qOOQ`'#Dh'#DhO/dQbO,59rO/kQQO,59jOOQa,59r,59rO/vQbO,59rO,bQbO,59cO,bQbO,59cO,bQbO,59cO,bQbO,59tO,bQbO,59tO,bQbO,59tO0QQRO,59aO0XQRO,59aO0jQRO,59aO0eQQO,59aO0uQQO,59aO0}QbO'#DnO1YQbO,59]O1kQRO,5:wO1rQRO,5:wO1}QbO,5:POOQ`,5:`,5:`OOQ`-E7d-E7dOOQa1G.y1G.yOOQ`,59k,59kOOQ`-E7k-E7kOOOO,59f,59fOOOO,59g,59gOOOO-E7e-E7eOOQa1G/O1G/OOOQ`-E7g-E7gO2XQbO1G0]OOQ`-E7f-E7fO2fQQO1G/UOOQa1G/^1G/^O2qQbO1G/^OOQO'#Dk'#DkO2fQQO1G/UOOQa1G/U1G/UOOQ`'#Dl'#DlO2qQbO1G/^OOQa1G.}1G.}O3dQcO1G.}O3nQcO1G.}O3xQcO1G.}OOQa1G/`1G/`O5[QcO1G/`O5cQcO1G/`O5jQcO1G/`OOQa1G.{1G.{O!`QbO'#CvO&SQbO'#CrOOQ`,5:Y,5:YOOQ`-E7l-E7lO5qQbO1G0cOOQ`1G/k1G/kO6OQbO7+%wO6TQbO7+%xO6eQQO7+$pOOQa7+$p7+$pO6pQbO7+$xOOQa7+$x7+$xOOQO-E7i-E7iOOQ`-E7j-E7jOOQ`'#D_'#D_O6zQbO7+%}O7PQbO7+&OOOQ`<<Ic<<IcOOQ`'#Dj'#DjO7gQQO'#DjO7lQbO'#EXO8SQbO<<IdOOQa<<H[<<H[OOQa<<Hd<<HdOOQ`<<Ii<<IiOOQ`'#D`'#D`O8XQbO<<IjOOQ`,5:U,5:UOOQ`-E7h-E7hOOQ`AN?OAN?OO,bQbO'#DaOOQ`'#Do'#DoO8dQbOAN?UO8oQQO'#DcOOQ`AN?UAN?UO8tQbOAN?UO8yQRO,59{O9QQRO,59{OOQ`-E7m-E7mOOQ`G24pG24pO9]QbOG24pO9bQQO,59}O9gQQO1G/gOOQ`LD*[LD*[O6TQbO1G/iO7PQbO7+%ROOQ`7+%T7+%TOOQ`<<Hm<<Hm",
+  stateData: "9o~O!fOS!gOS~O_QO`cOaXObPOcSOhXOpXOqXO{XO!QaO!l^O!oRO!vUO!wVO!xfO~O!kiO~O_kOaXObPOcSOhXOpXOqXOtjOylO{XO!l^O!oRO!vUO!wVO!OjX!xjX#RjX!}jXxjX~OP!mXQ!mXR!mXS!mXT!mXU!mXW!mXX!mXY!mXZ!mX[!mX]!mX^!mX~P!`OmrO!ouO!qpO!rqO~O_vOwvP~O_kOaXObPOhXOpXOqXOtjO{XO!l^O!oRO!vUO!wVO!xyO~O!||O~P%QO_kOaXObPOcSOhXOpXOqXOtjOylO{XO!l^O!oRO!vUO!wVO~OP!nXQ!nXR!nXS!nXT!nXU!nXW!nXX!nXY!nXZ!nX[!nX]!nX^!nX!x!nX#R!nX!}!nXx!nX~P&SOP!mXQ!mXR!mXS!mXT!mXU!mXW!mXX!mXY!mXZ!mX[!mX]!mX^!mX~O!x!iX#R!iXx!iX~P(ZOT!SOU!TOW!ROX!ROY!ROZ!RO[!RO]!RO~OP!POQ!POR!QOS!QO^!OO~P)cOP!POQ!POR!QOS!QO!x!iX#R!iXx!iX~OT!SOU!TO!x!iX#R!iXx!iX~O_QOaXObPOcSOhXOpXOqXO{XO!l^O!oRO!vUO!wVO~O!O!ZO!x!iX#R!iXx!iX~O_kOaXObPOhXOpXOqXO{XO!l^O!oRO!vUO!wVO~OV!_O~O!x!`O#R!`O~O_!bOh!bO~OcSOy!cO~P,bO!Ofa!xfa#Rfa!}faxfa~P&SO_!eO!l^O~O!o!fO!q!fO!r!fO!s!fO!t!fO!u!fO~OmrO!o!hO!qpO!rqO~O_vOwvX~Ow!jO~O!|!mO~P%QOtjO!x!oO!|!qO~O!x!rO!|!mO~P,bO!}!|O~P(ZOP!POQ!POR!QOS!QO!}!|O~OT!SOU!TO!}!|O~O!O!ZO!}!|O~O_!}ObPO!l^O~O!O!ZO!xea#Rea!}eaxea~Ow#RO~P)cOT!SOU!TOw#RO~O`cO!QaO~P+[O`cO!QaO!x#UO~P+[OtjO!x!oO!|#WO~O!x!rO!|#YO~P,bO^!OORkiSki!xki#Rki!}kixki~OPkiQki~P2{OP!POQ!PO~P2{OP!POQ!PORkiSki!xki#Rki!}kixki~OW!ROX!ROY!ROZ!RO[!RO]!ROT|i!x|i#R|i!}|iw|ix|i~OU!TO~P4dOU!TO~P4vOU|i~P4dO`cO!QaO!x#_O~P+[Ox#`O~O`cO!QaO!x#aOx!{P~P+[OtjO!x!oO!|#eO~O!x!rO!|#fO~P,bOx#gO~O`cO!QaO!x#aOx!{P!U!{P!W!{P~P+[O!x#jO~O`cO!QaO!x#aOx!{X!U!{X!W!{X~P+[Ox#lO~Ox#qO!U#mO!W#pO~Ox#vO!U#mO!W#pO~Ow#xO~Ox#vO~Ow#yO~P)cOT!SOU!TOw#yO~Ox#zO~O!x#{O~O!x#|O~Ohq~",
+  goto: ".z#RPPPPPPPPPPPPPPPPPPPPP#S#c#qP$i#c%d%yP&l&lPP%y&pP'T'nPPP%yP'q(^P(eP(q(t(}P)RP(e)X)_)e)k)q)z*U*`*i*pPPPP*v*z+`PP+r-PP-vPPPPPPPP-z-z._PP.g.n.nddOh!_!j#R#U#_#c#{#|R!X^i_O^h!Z!_!j#R#U#_#c#{#|fQO^h!_!j#R#U#_#c#{#|xkQVWajoz}!O!P!Q!R!S!T!n!s!}#O#X#mR!}!ZfWO^h!_!j#R#U#_#c#{#|xXQVWajoz}!O!P!Q!R!S!T!n!s!}#O#X#mQ!epR#O!Zd[Oh!_!j#R#U#_#c#{#|Q!V^Q!t!PR!w!Q!aXOQVW^ahjoz}!O!P!Q!R!S!T!_!j!n!s!}#O#R#U#X#_#c#m#{#|TrRtYmQWo!}#OQ{VQ!lzX!o{!l!p#VddOh!_!j#R#U#_#c#{#|YlQWo!}#OQ!X^R!cjRxSd]Oh!_!j#R#U#_#c#{#|Q!W^Q!^aQ!x!TQ!z!SR#t#mZmQWo!}#OedOh!_!j#R#U#_#c#{#|R#^#RQ#i#_Q#}#{R$O#|T#n#i#oQ#r#iR#w#oQhOR!ahQtRR!gtQzVR!kzQwSR!iwW#c#U#_#{#|R#k#cQ!p{Q#V!lT#Z!p#VQ!s}Q#X!nT#[!s#XWoQW!}#OR!doS![`!YR#Q![Q#o#iR#u#oTgOhSeOhQ#S!_Q#T!jQ#]#RZ#b#U#_#c#{#|d`Oh!_!j#R#U#_#c#{#|Q!Y^R#P!ZfZO^h!_!j#R#U#_#c#{#|YlQWo!}#OQ}VQ!]aQ!cjQ!nzW!r}!n!s#XQ!t!OQ!u!PQ!v!QQ!x!RQ!y!SQ!{!TR#s#mdYOh!_!j#R#U#_#c#{#|xkQVWajoz}!O!P!Q!R!S!T!n!s!}#O#X#mR!U^TsRtsTOQW^hjo!_!j!}#O#R#U#_#c#{#|Q#d#UV#h#_#{#|ZnQWo!}#OebOh!_!j#R#U#_#c#{#|",
+  nodeNames: "⚠ Star Slash Plus Minus And Or Eq EqEq Neq Lt Lte Gt Gte Modulo Identifier AssignableIdentifier Word IdentifierBeforeDot Do Program PipeExpr FunctionCall DotGet Number ParenExpr FunctionCallOrIdentifier BinOp String StringFragment Interpolation EscapeSeq Boolean Regex Dict NamedArg NamedArgPrefix FunctionDef Params colon keyword Underscore Array Null ConditionalOp PositionalArg operator IfExpr keyword SingleLineThenBlock ThenBlock ElseIfExpr keyword ElseExpr keyword Assign",
+  maxTerm: 95,
   context: trackScope,
   nodeProps: [
-    ["closedBy", 36,"end"]
+    ["closedBy", 39,"end"]
   ],
   propSources: [highlighting],
   skippedNodes: [0],
-  repeatNodeCount: 7,
-  tokenData: ">i~RzOX#uXY$dYZ$}Zp#upq$dqs#ust%htu'Puw#uwx'Uxy'Zyz'tz{#u{|(_|}#u}!O(_!O!P#u!P!Q+R!Q![(|![!]3n!]!^$}!^#O#u#O#P4X#P#R#u#R#S4^#S#T#u#T#Y4w#Y#Z6V#Z#b4w#b#c:e#c#f4w#f#g;[#g#h4w#h#i<R#i#o4w#o#p#u#p#q=y#q;'S#u;'S;=`$^<%l~#u~O#u~~>dS#zUkSOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#uS$aP;=`<%l#u^$kUkS!_YOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#uU%UUkS!qQOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#u^%oZkS!`YOY%hYZ#uZt%htu&buw%hwx&bx#O%h#O#P&b#P;'S%h;'S;=`&y<%lO%hY&gS!`YOY&bZ;'S&b;'S;=`&s<%lO&bY&vP;=`<%l&b^&|P;=`<%l%h~'UO!j~~'ZO!h~U'bUkS!eQOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#uU'{UkS!sQOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#uU(dWkSOt#uuw#ux!Q#u!Q![(|![#O#u#P;'S#u;'S;=`$^<%lO#uU)TYkSfQOt#uuw#ux!O#u!O!P)s!P!Q#u!Q![(|![#O#u#P;'S#u;'S;=`$^<%lO#uU)xWkSOt#uuw#ux!Q#u!Q![*b![#O#u#P;'S#u;'S;=`$^<%lO#uU*iWkSfQOt#uuw#ux!Q#u!Q![*b![#O#u#P;'S#u;'S;=`$^<%lO#uU+WWkSOt#uuw#ux!P#u!P!Q+p!Q#O#u#P;'S#u;'S;=`$^<%lO#uU+u^kSOY,qYZ#uZt,qtu-tuw,qwx-tx!P,q!P!Q#u!Q!},q!}#O2g#O#P0S#P;'S,q;'S;=`3h<%lO,qU,x^kSoQOY,qYZ#uZt,qtu-tuw,qwx-tx!P,q!P!Q0i!Q!},q!}#O2g#O#P0S#P;'S,q;'S;=`3h<%lO,qQ-yXoQOY-tZ!P-t!P!Q.f!Q!}-t!}#O/T#O#P0S#P;'S-t;'S;=`0c<%lO-tQ.iP!P!Q.lQ.qUoQ#Z#[.l#]#^.l#a#b.l#g#h.l#i#j.l#m#n.lQ/WVOY/TZ#O/T#O#P/m#P#Q-t#Q;'S/T;'S;=`/|<%lO/TQ/pSOY/TZ;'S/T;'S;=`/|<%lO/TQ0PP;=`<%l/TQ0VSOY-tZ;'S-t;'S;=`0c<%lO-tQ0fP;=`<%l-tU0nWkSOt#uuw#ux!P#u!P!Q1W!Q#O#u#P;'S#u;'S;=`$^<%lO#uU1_bkSoQOt#uuw#ux#O#u#P#Z#u#Z#[1W#[#]#u#]#^1W#^#a#u#a#b1W#b#g#u#g#h1W#h#i#u#i#j1W#j#m#u#m#n1W#n;'S#u;'S;=`$^<%lO#uU2l[kSOY2gYZ#uZt2gtu/Tuw2gwx/Tx#O2g#O#P/m#P#Q,q#Q;'S2g;'S;=`3b<%lO2gU3eP;=`<%l2gU3kP;=`<%l,qU3uUkStQOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#u~4^O!k~U4eUkSwQOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#uU4|YkSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#o4w#o;'S#u;'S;=`$^<%lO#uU5sUyQkSOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#uU6[ZkSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#U6}#U#o4w#o;'S#u;'S;=`$^<%lO#uU7S[kSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#`4w#`#a7x#a#o4w#o;'S#u;'S;=`$^<%lO#uU7}[kSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#g4w#g#h8s#h#o4w#o;'S#u;'S;=`$^<%lO#uU8x[kSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#X4w#X#Y9n#Y#o4w#o;'S#u;'S;=`$^<%lO#uU9uYnQkSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#o4w#o;'S#u;'S;=`$^<%lO#u^:lY!lWkSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#o4w#o;'S#u;'S;=`$^<%lO#u^;cY!nWkSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#o4w#o;'S#u;'S;=`$^<%lO#u^<Y[!mWkSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#f4w#f#g=O#g#o4w#o;'S#u;'S;=`$^<%lO#uU=T[kSOt#uuw#ux!_#u!_!`5l!`#O#u#P#T#u#T#i4w#i#j8s#j#o4w#o;'S#u;'S;=`$^<%lO#uU>QUzQkSOt#uuw#ux#O#u#P;'S#u;'S;=`$^<%lO#u~>iO!w~",
-  tokenizers: [operatorTokenizer, 1, 2, 3, tokenizer, new LocalTokenGroup("[~RP!O!PU~ZO!d~~", 11)],
-  topRules: {"Program":[0,18]},
-  specialized: [{term: 13, get: (value: any, stack: any) => (specializeKeyword(value, stack) << 1), external: specializeKeyword},{term: 13, get: (value: keyof typeof spec_Identifier) => spec_Identifier[value] || -1}],
-  tokenPrec: 860
+  repeatNodeCount: 10,
+  tokenData: "AO~R|OX#{XY$jYZ%TZp#{pq$jqs#{st%ntu'Vuw#{wx'[xy'ayz'zz{#{{|(e|}#{}!O(e!O!P#{!P!Q+X!Q![)S![!]3t!]!^%T!^!}#{!}#O4_#O#P6T#P#Q6Y#Q#R#{#R#S6s#S#T#{#T#Y7^#Y#Z8l#Z#b7^#b#c<z#c#f7^#f#g=q#g#h7^#h#i>h#i#o7^#o#p#{#p#q@`#q;'S#{;'S;=`$d<%l~#{~O#{~~@yS$QUmSOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{S$gP;=`<%l#{^$qUmS!fYOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{U%[UmS!xQOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{^%uZmS!gYOY%nYZ#{Zt%ntu&huw%nwx&hx#O%n#O#P&h#P;'S%n;'S;=`'P<%lO%nY&mS!gYOY&hZ;'S&h;'S;=`&y<%lO&hY&|P;=`<%l&h^'SP;=`<%l%n~'[O!q~~'aO!o~U'hUmS!lQOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{U(RUmS!}QOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{U(jWmSOt#{uw#{x!Q#{!Q![)S![#O#{#P;'S#{;'S;=`$d<%lO#{U)ZYmShQOt#{uw#{x!O#{!O!P)y!P!Q#{!Q![)S![#O#{#P;'S#{;'S;=`$d<%lO#{U*OWmSOt#{uw#{x!Q#{!Q![*h![#O#{#P;'S#{;'S;=`$d<%lO#{U*oWmShQOt#{uw#{x!Q#{!Q![*h![#O#{#P;'S#{;'S;=`$d<%lO#{U+^WmSOt#{uw#{x!P#{!P!Q+v!Q#O#{#P;'S#{;'S;=`$d<%lO#{U+{^mSOY,wYZ#{Zt,wtu-zuw,wwx-zx!P,w!P!Q#{!Q!},w!}#O2m#O#P0Y#P;'S,w;'S;=`3n<%lO,wU-O^mSqQOY,wYZ#{Zt,wtu-zuw,wwx-zx!P,w!P!Q0o!Q!},w!}#O2m#O#P0Y#P;'S,w;'S;=`3n<%lO,wQ.PXqQOY-zZ!P-z!P!Q.l!Q!}-z!}#O/Z#O#P0Y#P;'S-z;'S;=`0i<%lO-zQ.oP!P!Q.rQ.wUqQ#Z#[.r#]#^.r#a#b.r#g#h.r#i#j.r#m#n.rQ/^VOY/ZZ#O/Z#O#P/s#P#Q-z#Q;'S/Z;'S;=`0S<%lO/ZQ/vSOY/ZZ;'S/Z;'S;=`0S<%lO/ZQ0VP;=`<%l/ZQ0]SOY-zZ;'S-z;'S;=`0i<%lO-zQ0lP;=`<%l-zU0tWmSOt#{uw#{x!P#{!P!Q1^!Q#O#{#P;'S#{;'S;=`$d<%lO#{U1ebmSqQOt#{uw#{x#O#{#P#Z#{#Z#[1^#[#]#{#]#^1^#^#a#{#a#b1^#b#g#{#g#h1^#h#i#{#i#j1^#j#m#{#m#n1^#n;'S#{;'S;=`$d<%lO#{U2r[mSOY2mYZ#{Zt2mtu/Zuw2mwx/Zx#O2m#O#P/s#P#Q,w#Q;'S2m;'S;=`3h<%lO2mU3kP;=`<%l2mU3qP;=`<%l,wU3{UmSwQOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{U4fW!wQmSOt#{uw#{x!_#{!_!`5O!`#O#{#P;'S#{;'S;=`$d<%lO#{U5TVmSOt#{uw#{x#O#{#P#Q5j#Q;'S#{;'S;=`$d<%lO#{U5qU!vQmSOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{~6YO!r~U6aU!|QmSOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{U6zUmSyQOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{U7cYmSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#o7^#o;'S#{;'S;=`$d<%lO#{U8YUtQmSOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{U8qZmSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#U9d#U#o7^#o;'S#{;'S;=`$d<%lO#{U9i[mSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#`7^#`#a:_#a#o7^#o;'S#{;'S;=`$d<%lO#{U:d[mSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#g7^#g#h;Y#h#o7^#o;'S#{;'S;=`$d<%lO#{U;_[mSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#X7^#X#Y<T#Y#o7^#o;'S#{;'S;=`$d<%lO#{U<[YpQmSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#o7^#o;'S#{;'S;=`$d<%lO#{^=RY!sWmSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#o7^#o;'S#{;'S;=`$d<%lO#{^=xY!uWmSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#o7^#o;'S#{;'S;=`$d<%lO#{^>o[!tWmSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#f7^#f#g?e#g#o7^#o;'S#{;'S;=`$d<%lO#{U?j[mSOt#{uw#{x!_#{!_!`8R!`#O#{#P#T#{#T#i7^#i#j;Y#j#o7^#o;'S#{;'S;=`$d<%lO#{U@gU!OQmSOt#{uw#{x#O#{#P;'S#{;'S;=`$d<%lO#{~AOO#R~",
+  tokenizers: [operatorTokenizer, 1, 2, 3, tokenizer, new LocalTokenGroup("[~RP!O!PU~ZO!k~~", 11)],
+  topRules: {"Program":[0,20]},
+  specialized: [{term: 15, get: (value: any, stack: any) => (specializeKeyword(value, stack) << 1), external: specializeKeyword},{term: 15, get: (value: keyof typeof spec_Identifier) => spec_Identifier[value] || -1}],
+  tokenPrec: 1132
 })
diff --git a/src/parser/tests/basics.test.ts b/src/parser/tests/basics.test.ts
index f92e034..da6d4bb 100644
--- a/src/parser/tests/basics.test.ts
+++ b/src/parser/tests/basics.test.ts
@@ -36,6 +36,19 @@ describe('Identifier', () => {
       FunctionCallOrIdentifier
         Identifier 𝜋`)
   })
+
+  test('parses identifiers with queries', () => {
+    expect('even? 20').toMatchTree(`
+      FunctionCall
+        Identifier even?
+        PositionalArg
+          Number 20`)
+
+    expect('even?').toMatchTree(`
+      FunctionCallOrIdentifier
+        Identifier even?`)
+  })
+
 })
 
 describe('Unicode Symbol Support', () => {
@@ -395,6 +408,15 @@ describe('BinOp', () => {
     `)
   })
 
+  test('modulo tests', () => {
+    expect('4 % 3').toMatchTree(`
+      BinOp
+        Number 4
+        Modulo %
+        Number 3
+    `)
+  })
+
   test('mixed operations with precedence', () => {
     expect('2 + 3 * 4 - 5 / 1').toMatchTree(`
       BinOp
@@ -570,4 +592,90 @@ describe('Comments', () => {
         Slash /
         Identifier prop`)
   })
+})
+
+describe('Conditional ops', () => {
+  test('or can be chained', () => {
+    expect(`
+      is-positive = do x:
+        if x == 3 or x == 4 or x == 5:
+          true
+        end
+      end
+      `).toMatchTree(`
+Assign
+  AssignableIdentifier is-positive
+  Eq =
+  FunctionDef
+    Do do
+    Params
+      Identifier x
+    colon :
+    IfExpr
+      keyword if
+      ConditionalOp
+        ConditionalOp
+          ConditionalOp
+            Identifier x
+            EqEq ==
+            Number 3
+          Or or
+          ConditionalOp
+            Identifier x
+            EqEq ==
+            Number 4
+        Or or
+        ConditionalOp
+          Identifier x
+          EqEq ==
+          Number 5
+      colon :
+      ThenBlock
+        Boolean true
+      keyword end
+    keyword end
+        `)
+  })
+
+  test('and can be chained', () => {
+    expect(`
+      is-positive = do x:
+        if x == 3 and x == 4 and x == 5:
+          true
+        end
+      end
+      `).toMatchTree(`
+Assign
+  AssignableIdentifier is-positive
+  Eq =
+  FunctionDef
+    Do do
+    Params
+      Identifier x
+    colon :
+    IfExpr
+      keyword if
+      ConditionalOp
+        ConditionalOp
+          ConditionalOp
+            Identifier x
+            EqEq ==
+            Number 3
+          And and
+          ConditionalOp
+            Identifier x
+            EqEq ==
+            Number 4
+        And and
+        ConditionalOp
+          Identifier x
+          EqEq ==
+          Number 5
+      colon :
+      ThenBlock
+        Boolean true
+      keyword end
+    keyword end
+        `)
+  })
 })
\ No newline at end of file
diff --git a/src/parser/tests/control-flow.test.ts b/src/parser/tests/control-flow.test.ts
index 11c81d0..70efddb 100644
--- a/src/parser/tests/control-flow.test.ts
+++ b/src/parser/tests/control-flow.test.ts
@@ -4,12 +4,12 @@ import '../shrimp.grammar' // Importing this so changes cause it to retest!
 
 describe('if/elseif/else', () => {
   test('parses single line if', () => {
-    expect(`if y = 1: 'cool' end`).toMatchTree(`
+    expect(`if y == 1: 'cool' end`).toMatchTree(`
       IfExpr
         keyword if
         ConditionalOp
           Identifier y
-          Eq =
+          EqEq ==
           Number 1
         colon :
         SingleLineThenBlock
diff --git a/src/parser/tests/literals.test.ts b/src/parser/tests/literals.test.ts
new file mode 100644
index 0000000..693da17
--- /dev/null
+++ b/src/parser/tests/literals.test.ts
@@ -0,0 +1,492 @@
+import { expect, describe, test } from 'bun:test'
+
+import '../shrimp.grammar' // Importing this so changes cause it to retest!
+
+describe('array literals', () => {
+  test('work with numbers', () => {
+    expect('[1 2 3]').toMatchTree(`
+      Array
+        Number 1
+        Number 2
+        Number 3
+    `)
+  })
+
+  test('work with strings', () => {
+    expect("['one' 'two' 'three']").toMatchTree(`
+      Array
+        String
+          StringFragment one
+        String
+          StringFragment two
+        String
+          StringFragment three
+    `)
+  })
+
+  test('work with identifiers', () => {
+    expect('[one two three]').toMatchTree(`
+      Array
+        Identifier one
+        Identifier two
+        Identifier three
+    `)
+  })
+
+  test('can be nested', () => {
+    expect('[one [two [three]]]').toMatchTree(`
+      Array
+        Identifier one
+        Array
+          Identifier two
+          Array
+            Identifier three
+    `)
+  })
+
+  test('can span multiple lines', () => {
+    expect(`[
+      1
+      2
+      3
+    ]`).toMatchTree(`
+      Array
+        Number 1
+        Number 2
+        Number 3
+    `)
+  })
+
+  test('can span multiple w/o calling functions', () => {
+    expect(`[
+      one
+      two
+      three
+    ]`).toMatchTree(`
+      Array
+        Identifier one
+        Identifier two
+        Identifier three
+    `)
+  })
+
+  test('empty arrays', () => {
+    expect('[]').toMatchTree(`
+      Array []
+    `)
+  })
+
+  test('mixed types', () => {
+    expect("[1 'two' three true null]").toMatchTree(`
+      Array
+        Number 1
+        String
+          StringFragment two
+        Identifier three
+        Boolean true
+        Null null
+    `)
+  })
+
+  test('semicolons as separators', () => {
+    expect('[1; 2; 3]').toMatchTree(`
+      Array
+        Number 1
+        Number 2
+        Number 3
+    `)
+  })
+
+  test('expressions in arrays', () => {
+    expect('[(1 + 2) (3 * 4)]').toMatchTree(`
+      Array
+        ParenExpr
+          BinOp
+            Number 1
+            Plus +
+            Number 2
+        ParenExpr
+          BinOp
+            Number 3
+            Star *
+            Number 4
+    `)
+  })
+
+  test('mixed separators - spaces and newlines', () => {
+    expect(`[1 2
+3 4]`).toMatchTree(`
+      Array
+        Number 1
+        Number 2
+        Number 3
+        Number 4
+    `)
+  })
+
+  test('mixed separators - spaces and semicolons', () => {
+    expect('[1 2; 3 4]').toMatchTree(`
+      Array
+        Number 1
+        Number 2
+        Number 3
+        Number 4
+    `)
+  })
+
+  test('empty lines within arrays', () => {
+    expect(`[1
+
+2]`).toMatchTree(`
+      Array
+        Number 1
+        Number 2
+    `)
+  })
+
+  test('comments within arrays', () => {
+    expect(`[ # something...
+      1 # first
+      2 # second
+    ]`).toMatchTree(`
+      Array
+        Number 1
+        Number 2
+    `)
+  })
+
+  test('complex nested multiline', () => {
+    expect(`[
+  [1 2]
+  [3 4]
+  [5 6]
+]`).toMatchTree(`
+      Array
+        Array
+          Number 1
+          Number 2
+        Array
+          Number 3
+          Number 4
+        Array
+          Number 5
+          Number 6
+    `)
+  })
+
+  test('boolean and null literals', () => {
+    expect('[true false null]').toMatchTree(`
+      Array
+        Boolean true
+        Boolean false
+        Null null
+    `)
+  })
+
+  test('regex literals', () => {
+    expect('[//[0-9]+//]').toMatchTree(`
+      Array
+        Regex //[0-9]+//
+    `)
+  })
+
+  test('trailing newlines', () => {
+    expect(`[
+1
+2
+]`).toMatchTree(`
+      Array
+        Number 1
+        Number 2
+    `)
+  })
+})
+
+describe('dict literals', () => {
+  test('work with numbers', () => {
+    expect('[a=1 b=2 c=3]').toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          Number 2
+        NamedArg
+          NamedArgPrefix c=
+          Number 3
+    `)
+  })
+
+  test('work with strings', () => {
+    expect("[a='one' b='two' c='three']").toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          String
+            StringFragment one
+        NamedArg
+          NamedArgPrefix b=
+          String
+            StringFragment two
+        NamedArg
+          NamedArgPrefix c=
+          String
+            StringFragment three
+    `)
+  })
+
+  test('work with identifiers', () => {
+    expect('[a=one b=two c=three]').toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Identifier one
+        NamedArg
+          NamedArgPrefix b=
+          Identifier two
+        NamedArg
+          NamedArgPrefix c=
+          Identifier three
+    `)
+  })
+
+  test('can be nested', () => {
+    expect('[a=one b=[two [c=three]]]').toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Identifier one
+        NamedArg
+          NamedArgPrefix b=
+          Array
+            Identifier two
+            Dict
+              NamedArg
+                NamedArgPrefix c=
+                Identifier three
+    `)
+  })
+
+  test('can span multiple lines', () => {
+    expect(`[
+      a=1
+      b=2
+      c=3
+    ]`).toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          Number 2
+        NamedArg
+          NamedArgPrefix c=
+          Number 3
+    `)
+  })
+  test('empty dict', () => {
+    expect('[=]').toMatchTree(`
+      Dict [=]
+    `)
+
+    expect('[ = ]').toMatchTree(`
+      Array
+        Word =
+    `)
+  })
+
+  test('mixed types', () => {
+    expect("[a=1 b='two' c=three d=true e=null]").toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          String
+            StringFragment two
+        NamedArg
+          NamedArgPrefix c=
+          Identifier three
+        NamedArg
+          NamedArgPrefix d=
+          Boolean true
+        NamedArg
+          NamedArgPrefix e=
+          Null null
+    `)
+  })
+
+  test('semicolons as separators', () => {
+    expect('[a=1; b=2; c=3]').toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          Number 2
+        NamedArg
+          NamedArgPrefix c=
+          Number 3
+    `)
+  })
+
+  test('expressions in dicts', () => {
+    expect('[a=(1 + 2) b=(3 * 4)]').toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          ParenExpr
+            BinOp
+              Number 1
+              Plus +
+              Number 2
+        NamedArg
+          NamedArgPrefix b=
+          ParenExpr
+            BinOp
+              Number 3
+              Star *
+              Number 4
+    `)
+  })
+
+  test('mixed separators - spaces and newlines', () => {
+    expect(`[a=1 b=2
+c=3]`).toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          Number 2
+        NamedArg
+          NamedArgPrefix c=
+          Number 3
+    `)
+  })
+
+  test('empty lines within dicts', () => {
+    expect(`[a=1
+
+b=2
+
+c=3]`).toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          Number 2
+        NamedArg
+          NamedArgPrefix c=
+          Number 3
+    `)
+  })
+
+  test('comments within dicts', () => {
+    expect(`[ # something...
+      a=1 # first
+      b=2 # second
+
+      c=3
+    ]`).toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          Number 2
+        NamedArg
+          NamedArgPrefix c=
+          Number 3
+    `)
+  })
+
+  test('complex nested multiline', () => {
+    expect(`[
+  a=[a=1 b=2]
+  b=[b=3 c=4]
+  c=[c=5 d=6]
+]`).toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Dict
+            NamedArg
+              NamedArgPrefix a=
+              Number 1
+            NamedArg
+              NamedArgPrefix b=
+              Number 2
+        NamedArg
+          NamedArgPrefix b=
+          Dict
+            NamedArg
+              NamedArgPrefix b=
+              Number 3
+            NamedArg
+              NamedArgPrefix c=
+              Number 4
+        NamedArg
+          NamedArgPrefix c=
+          Dict
+            NamedArg
+              NamedArgPrefix c=
+              Number 5
+            NamedArg
+              NamedArgPrefix d=
+              Number 6
+    `)
+  })
+
+  test('boolean and null literals', () => {
+    expect('[a=true b=false c=null]').toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Boolean true
+        NamedArg
+          NamedArgPrefix b=
+          Boolean false
+        NamedArg
+          NamedArgPrefix c=
+          Null null
+    `)
+  })
+
+  test('regex literals', () => {
+    expect('[pattern=//[0-9]+//]').toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix pattern=
+          Regex //[0-9]+//
+    `)
+  })
+
+  test('trailing newlines', () => {
+    expect(`[
+a=1
+b=2
+c=3
+
+]`).toMatchTree(`
+      Dict
+        NamedArg
+          NamedArgPrefix a=
+          Number 1
+        NamedArg
+          NamedArgPrefix b=
+          Number 2
+        NamedArg
+          NamedArgPrefix c=
+          Number 3
+    `)
+  })
+})
diff --git a/src/parser/tokenizer.ts b/src/parser/tokenizer.ts
index 0db5545..e4fc895 100644
--- a/src/parser/tokenizer.ts
+++ b/src/parser/tokenizer.ts
@@ -6,6 +6,13 @@ export function specializeKeyword(ident: string) {
   return ident === 'do' ? Do : -1
 }
 
+// tell the dotGet searcher about builtin globals
+export const globals: string[] = []
+export const setGlobals = (newGlobals: string[]) => {
+  globals.length = 0
+  globals.push(...newGlobals)
+}
+
 // The only chars that can't be words are whitespace, apostrophes, closing parens, and EOF.
 
 export const tokenizer = new ExternalTokenizer(
@@ -112,7 +119,7 @@ const consumeWordToken = (
     }
 
     // Track identifier validity: must be lowercase, digit, dash, or emoji/unicode
-    if (!isLowercaseLetter(ch) && !isDigit(ch) && ch !== 45 /* - */ && !isEmojiOrUnicode(ch)) {
+    if (!isLowercaseLetter(ch) && !isDigit(ch) && ch !== 45 /* - */ && ch !== 63 /* ? */ && !isEmojiOrUnicode(ch)) {
       if (!canBeWord) break
       isValidIdentifier = false
     }
@@ -152,7 +159,7 @@ const checkForDotGet = (input: InputStream, stack: Stack, pos: number): number |
 
   // If identifier is in scope, this is property access (e.g., obj.prop)
   // If not in scope, it should be consumed as a Word (e.g., file.txt)
-  return context?.scope.has(identifierText) ? IdentifierBeforeDot : null
+  return context?.scope.has(identifierText) || globals.includes(identifierText) ? IdentifierBeforeDot : null
 }
 
 // Decide between AssignableIdentifier and Identifier using grammar state + peek-ahead
@@ -195,7 +202,13 @@ const isWhiteSpace = (ch: number): boolean => {
 }
 
 const isWordChar = (ch: number): boolean => {
-  return !isWhiteSpace(ch) && ch !== 10 /* \n */ && ch !== 41 /* ) */ && ch !== -1 /* EOF */
+  return (
+    !isWhiteSpace(ch) &&
+    ch !== 10 /* \n */ &&
+    ch !== 41 /* ) */ &&
+    ch !== 93 /* ] */ &&
+    ch !== -1 /* EOF */
+  )
 }
 
 const isLowercaseLetter = (ch: number): boolean => {
diff --git a/src/prelude/dict.ts b/src/prelude/dict.ts
new file mode 100644
index 0000000..9642a15
--- /dev/null
+++ b/src/prelude/dict.ts
@@ -0,0 +1,35 @@
+import { type Value, toString, toValue } from 'reefvm'
+
+export const dict = {
+  keys: (dict: Record<string, any>) => Object.keys(dict),
+  values: (dict: Record<string, any>) => Object.values(dict),
+  entries: (dict: Record<string, any>) => Object.entries(dict).map(([k, v]) => ({ key: k, value: v })),
+  'has?': (dict: Record<string, any>, key: string) => key in dict,
+  get: (dict: Record<string, any>, key: string, defaultValue: any = null) => dict[key] ?? defaultValue,
+  set: (dict: Value, key: Value, value: Value) => {
+    const map = dict.value as Map<string, Value>
+    map.set(toString(key), value)
+    return dict
+  },
+  merge: (...dicts: Record<string, any>[]) => Object.assign({}, ...dicts),
+  'empty?': (dict: Record<string, any>) => Object.keys(dict).length === 0,
+  map: async (dict: Record<string, any>, cb: Function) => {
+    const result: Record<string, any> = {}
+    for (const [key, value] of Object.entries(dict)) {
+      result[key] = await cb(value, key)
+    }
+    return result
+  },
+  filter: async (dict: Record<string, any>, cb: Function) => {
+    const result: Record<string, any> = {}
+    for (const [key, value] of Object.entries(dict)) {
+      if (await cb(value, key)) result[key] = value
+    }
+    return result
+  },
+  'from-entries': (entries: [string, any][]) => Object.fromEntries(entries),
+}
+
+  // raw functions deal directly in Value types, meaning we can modify collection
+  // careful - the MUST return a Value!
+  ; (dict.set as any).raw = true
diff --git a/src/prelude/index.ts b/src/prelude/index.ts
new file mode 100644
index 0000000..facf4b8
--- /dev/null
+++ b/src/prelude/index.ts
@@ -0,0 +1,149 @@
+// The prelude creates all the builtin Shrimp functions.
+
+import {
+  type Value, toValue,
+  extractParamInfo, isWrapped, getOriginalFunction,
+} from 'reefvm'
+
+import { dict } from './dict'
+import { load } from './load'
+import { list } from './list'
+import { math } from './math'
+import { str } from './str'
+
+export const globals = {
+  dict,
+  load,
+  list,
+  math,
+  str,
+
+  // hello
+  echo: (...args: any[]) => {
+    console.log(...args.map(a => {
+      const v = toValue(a)
+      return ['array', 'dict'].includes(v.type) ? formatValue(v, true) : v.value
+    }))
+    return toValue(null)
+  },
+
+  // info
+  type: (v: any) => toValue(v).type,
+  inspect: (v: any) => formatValue(toValue(v)),
+  describe: (v: any) => {
+    const val = toValue(v)
+    return `#<${val.type}: ${formatValue(val)}>`
+  },
+  length: (v: any) => {
+    const value = toValue(v)
+    switch (value.type) {
+      case 'string': case 'array': return value.value.length
+      case 'dict': return value.value.size
+      default: return 0
+    }
+  },
+
+  // type predicates
+  'string?': (v: any) => toValue(v).type === 'string',
+  'number?': (v: any) => toValue(v).type === 'number',
+  'boolean?': (v: any) => toValue(v).type === 'boolean',
+  'array?': (v: any) => toValue(v).type === 'array',
+  'dict?': (v: any) => toValue(v).type === 'dict',
+  'function?': (v: any) => {
+    const t = toValue(v).type
+    return t === 'function' || t === 'native'
+  },
+  'null?': (v: any) => toValue(v).type === 'null',
+  'some?': (v: any) => toValue(v).type !== 'null',
+
+  // boolean/logic
+  not: (v: any) => !v,
+
+  // utilities
+  inc: (n: number) => n + 1,
+  dec: (n: number) => n - 1,
+  identity: (v: any) => v,
+
+  // collections
+  at: (collection: any, index: number | string) => collection[index],
+  range: (start: number, end: number | null) => {
+    if (end === null) {
+      end = start
+      start = 0
+    }
+    const result: number[] = []
+    for (let i = start; i <= end; i++) {
+      result.push(i)
+    }
+    return result
+  },
+  'empty?': (v: any) => {
+    const value = toValue(v)
+    switch (value.type) {
+      case 'string': case 'array':
+        return value.value.length === 0
+      case 'dict':
+        return value.value.size === 0
+      default:
+        return false
+    }
+  },
+
+  // enumerables
+  each: async (list: any[], cb: Function) => {
+    for (const value of list) await cb(value)
+    return list
+  },
+
+}
+
+export const colors = {
+  reset: '\x1b[0m',
+  bright: '\x1b[1m',
+  dim: '\x1b[2m',
+  cyan: '\x1b[36m',
+  yellow: '\x1b[33m',
+  green: '\x1b[32m',
+  red: '\x1b[31m',
+  blue: '\x1b[34m',
+  magenta: '\x1b[35m',
+  pink: '\x1b[38;2;255;105;180m'
+}
+
+export function formatValue(value: Value, inner = false): string {
+  switch (value.type) {
+    case 'string':
+      return `${colors.green}'${value.value.replaceAll("'", "\\'")}${colors.green}'${colors.reset}`
+    case 'number':
+      return `${colors.cyan}${value.value}${colors.reset}`
+    case 'boolean':
+      return `${colors.yellow}${value.value}${colors.reset}`
+    case 'null':
+      return `${colors.dim}null${colors.reset}`
+    case 'array': {
+      const items = value.value.map(x => formatValue(x, true)).join(' ')
+      return `${colors.blue}[${colors.reset}${items}${colors.blue}]${colors.reset}`
+    }
+    case 'dict': {
+      const entries = Array.from(value.value.entries())
+        .map(([k, v]) => `${k}${colors.blue}=${colors.reset}${formatValue(v, true)}`)
+        .join(' ')
+      if (entries.length === 0)
+        return `${colors.blue}[=]${colors.reset}`
+      return `${colors.blue}[${colors.reset}${entries}${colors.blue}]${colors.reset}`
+    }
+    case 'function': {
+      const params = value.params.length ? '(' + value.params.join(' ') + ')' : ''
+      return `${colors.dim}<function${params}>${colors.reset}`
+    }
+    case 'native':
+      const fn = isWrapped(value.fn) ? getOriginalFunction(value.fn) : value.fn
+      const info = extractParamInfo(fn)
+      const params = info.params.length ? '(' + info.params.join(' ') + ')' : ''
+      return `${colors.dim}<native${params}>${colors.reset}`
+    case 'regex':
+      return `${colors.magenta}${value.value}${colors.reset}`
+    default:
+      return String(value)
+  }
+}
\ No newline at end of file
diff --git a/src/prelude/list.ts b/src/prelude/list.ts
new file mode 100644
index 0000000..eb013ef
--- /dev/null
+++ b/src/prelude/list.ts
@@ -0,0 +1,89 @@
+export const list = {
+  slice: (list: any[], start: number, end?: number) => list.slice(start, end),
+  map: async (list: any[], cb: Function) => {
+    let acc: any[] = []
+    for (const value of list) acc.push(await cb(value))
+    return acc
+  },
+  filter: async (list: any[], cb: Function) => {
+    let acc: any[] = []
+    for (const value of list) {
+      if (await cb(value)) acc.push(value)
+    }
+    return acc
+  },
+  reduce: async (list: any[], cb: Function, initial: any) => {
+    let acc = initial
+    for (const value of list) acc = await cb(acc, value)
+    return acc
+  },
+  find: async (list: any[], cb: Function) => {
+    for (const value of list) {
+      if (await cb(value)) return value
+    }
+    return null
+  },
+
+  // predicates
+  'empty?': (list: any[]) => list.length === 0,
+  'contains?': (list: any[], item: any) => list.includes(item),
+  'any?': async (list: any[], cb: Function) => {
+    for (const value of list) {
+      if (await cb(value)) return true
+    }
+    return false
+  },
+  'all?': async (list: any[], cb: Function) => {
+    for (const value of list) {
+      if (!await cb(value)) return false
+    }
+    return true
+  },
+
+  // sequence operations
+  reverse: (list: any[]) => list.slice().reverse(),
+  sort: (list: any[], cb?: (a: any, b: any) => number) => list.slice().sort(cb),
+  concat: (...lists: any[][]) => lists.flat(1),
+  flatten: (list: any[], depth: number = 1) => list.flat(depth),
+  unique: (list: any[]) => Array.from(new Set(list)),
+  zip: (list1: any[], list2: any[]) => list1.map((item, i) => [item, list2[i]]),
+
+  // access
+  first: (list: any[]) => list[0] ?? null,
+  last: (list: any[]) => list[list.length - 1] ?? null,
+  rest: (list: any[]) => list.slice(1),
+  take: (list: any[], n: number) => list.slice(0, n),
+  drop: (list: any[], n: number) => list.slice(n),
+  append: (list: any[], item: any) => [...list, item],
+  prepend: (list: any[], item: any) => [item, ...list],
+  'index-of': (list: any[], item: any) => list.indexOf(item),
+
+  // utilities
+  sum: (list: any[]) => list.reduce((acc, x) => acc + x, 0),
+  count: async (list: any[], cb: Function) => {
+    let count = 0
+    for (const value of list) {
+      if (await cb(value)) count++
+    }
+    return count
+  },
+  partition: async (list: any[], cb: Function) => {
+    const truthy: any[] = []
+    const falsy: any[] = []
+    for (const value of list) {
+      if (await cb(value)) truthy.push(value)
+      else falsy.push(value)
+    }
+    return [truthy, falsy]
+  },
+  compact: (list: any[]) => list.filter(x => x != null),
+  'group-by': async (list: any[], cb: Function) => {
+    const groups: Record<string, any[]> = {}
+    for (const value of list) {
+      const key = String(await cb(value))
+      if (!groups[key]) groups[key] = []
+      groups[key].push(value)
+    }
+    return groups
+  },
+}
\ No newline at end of file
diff --git a/src/prelude/load.ts b/src/prelude/load.ts
new file mode 100644
index 0000000..3f317c1
--- /dev/null
+++ b/src/prelude/load.ts
@@ -0,0 +1,29 @@
+import { resolve } from 'path'
+import { readFileSync } from 'fs'
+import { Compiler } from '#compiler/compiler'
+import { type Value, VM, Scope } from 'reefvm'
+
+export const load = async function (this: VM, path: string): Promise<Record<string, Value>> {
+  const scope = this.scope
+  const pc = this.pc
+
+  const fullPath = resolve(path) + '.sh'
+  const code = readFileSync(fullPath, 'utf-8')
+
+  this.pc = this.instructions.length
+  this.scope = new Scope(scope)
+  const compiled = new Compiler(code)
+  this.appendBytecode(compiled.bytecode)
+
+  await this.continue()
+
+  const module: Record<string, Value> = {}
+  for (const [name, value] of this.scope.locals.entries())
+    module[name] = value
+
+  this.scope = scope
+  this.pc = pc
+  this.stopped = false
+
+  return module
+}
\ No newline at end of file
diff --git a/src/prelude/math.ts b/src/prelude/math.ts
new file mode 100644
index 0000000..21f2f57
--- /dev/null
+++ b/src/prelude/math.ts
@@ -0,0 +1,21 @@
+export const math = {
+  abs: (n: number) => Math.abs(n),
+  floor: (n: number) => Math.floor(n),
+  ceil: (n: number) => Math.ceil(n),
+  round: (n: number) => Math.round(n),
+  min: (...nums: number[]) => Math.min(...nums),
+  max: (...nums: number[]) => Math.max(...nums),
+  pow: (base: number, exp: number) => Math.pow(base, exp),
+  sqrt: (n: number) => Math.sqrt(n),
+  random: () => Math.random(),
+  clamp: (n: number, min: number, max: number) => Math.min(Math.max(n, min), max),
+  sign: (n: number) => Math.sign(n),
+  trunc: (n: number) => Math.trunc(n),
+
+  // predicates
+  'even?': (n: number) => n % 2 === 0,
+  'odd?': (n: number) => n % 2 !== 0,
+  'positive?': (n: number) => n > 0,
+  'negative?': (n: number) => n < 0,
+  'zero?': (n: number) => n === 0,
+}
\ No newline at end of file
diff --git a/src/prelude/str.ts b/src/prelude/str.ts
new file mode 100644
index 0000000..fa0d657
--- /dev/null
+++ b/src/prelude/str.ts
@@ -0,0 +1,33 @@
+// strings
+export const str = {
+  join: (arr: string[], sep: string = ',') => arr.join(sep),
+  split: (str: string, sep: string = ',') => str.split(sep),
+  'to-upper': (str: string) => str.toUpperCase(),
+  'to-lower': (str: string) => str.toLowerCase(),
+  trim: (str: string) => str.trim(),
+
+  // predicates
+  'starts-with?': (str: string, prefix: string) => str.startsWith(prefix),
+  'ends-with?': (str: string, suffix: string) => str.endsWith(suffix),
+  'contains?': (str: string, substr: string) => str.includes(substr),
+  'empty?': (str: string) => str.length === 0,
+
+  // inspection
+  'index-of': (str: string, search: string) => str.indexOf(search),
+  'last-index-of': (str: string, search: string) => str.lastIndexOf(search),
+
+  // transformations
+  replace: (str: string, search: string, replacement: string) => str.replace(search, replacement),
+  'replace-all': (str: string, search: string, replacement: string) => str.replaceAll(search, replacement),
+  slice: (str: string, start: number, end?: number | null) => str.slice(start, end ?? undefined),
+  substring: (str: string, start: number, end?: number | null) => str.substring(start, end ?? undefined),
+  repeat: (str: string, count: number) => str.repeat(count),
+  'pad-start': (str: string, length: number, pad: string = ' ') => str.padStart(length, pad),
+  'pad-end': (str: string, length: number, pad: string = ' ') => str.padEnd(length, pad),
+  lines: (str: string) => str.split('\n'),
+  chars: (str: string) => str.split(''),
+
+  // regex
+  match: (str: string, regex: RegExp) => str.match(regex),
+  'test?': (str: string, regex: RegExp) => regex.test(str),
+}
\ No newline at end of file
diff --git a/src/prelude/tests/load.ts b/src/prelude/tests/load.ts
new file mode 100644
index 0000000..7ce8172
--- /dev/null
+++ b/src/prelude/tests/load.ts
@@ -0,0 +1,42 @@
+import { expect, describe, test } from 'bun:test'
+import { globals } from '#prelude'
+
+describe('use', () => {
+  test(`imports all a file's functions`, async () => {
+    expect(`
+      math = load ./src/prelude/tests/math
+      math.double 4
+    `).toEvaluateTo(8, globals)
+
+    expect(`
+      math = load ./src/prelude/tests/math
+      math.double (math.double 4) 
+    `).toEvaluateTo(16, globals)
+
+    expect(`
+      math = load ./src/prelude/tests/math
+      dbl = math.double 
+      dbl (dbl 2)
+    `).toEvaluateTo(8, globals)
+
+    expect(`
+      math = load ./src/prelude/tests/math
+      math.pi
+    `).toEvaluateTo(3.14, globals)
+
+    expect(`
+      math = load ./src/prelude/tests/math
+      math | at 🥧
+    `).toEvaluateTo(3.14159265359, globals)
+
+    expect(`
+      math = load ./src/prelude/tests/math
+      math.🥧
+    `).toEvaluateTo(3.14159265359, globals)
+
+    expect(`
+      math = load ./src/prelude/tests/math
+      math.add1 5
+    `).toEvaluateTo(6, globals)
+  })
+})
diff --git a/src/prelude/tests/math.sh b/src/prelude/tests/math.sh
new file mode 100644
index 0000000..14dc504
--- /dev/null
+++ b/src/prelude/tests/math.sh
@@ -0,0 +1,4 @@
+🥧 = 3.14159265359
+pi = 3.14
+add1 = do x: x + 1 end
+double = do x: x * 2 end
\ No newline at end of file
diff --git a/src/prelude/tests/prelude.test.ts b/src/prelude/tests/prelude.test.ts
new file mode 100644
index 0000000..ef7d8d6
--- /dev/null
+++ b/src/prelude/tests/prelude.test.ts
@@ -0,0 +1,598 @@
+import { expect, describe, test } from 'bun:test'
+import { globals } from '#prelude'
+
+describe('string operations', () => {
+  test('to-upper converts to uppercase', async () => {
+    await expect(`str.to-upper 'hello'`).toEvaluateTo('HELLO', globals)
+    await expect(`str.to-upper 'Hello World!'`).toEvaluateTo('HELLO WORLD!', globals)
+  })
+
+  test('to-lower converts to lowercase', async () => {
+    await expect(`str.to-lower 'HELLO'`).toEvaluateTo('hello', globals)
+    await expect(`str.to-lower 'Hello World!'`).toEvaluateTo('hello world!', globals)
+  })
+
+  test('trim removes whitespace', async () => {
+    await expect(`str.trim '  hello  '`).toEvaluateTo('hello', globals)
+    await expect(`str.trim '\\n\\thello\\t\\n'`).toEvaluateTo('hello', globals)
+  })
+
+  test('split divides string by separator', async () => {
+    await expect(`str.split 'a,b,c' ','`).toEvaluateTo(['a', 'b', 'c'], globals)
+    await expect(`str.split 'hello' ''`).toEvaluateTo(['h', 'e', 'l', 'l', 'o'], globals)
+  })
+
+  test('split with comma separator', async () => {
+    await expect(`str.split 'a,b,c' ','`).toEvaluateTo(['a', 'b', 'c'], globals)
+  })
+
+  test('join combines array elements', async () => {
+    await expect(`str.join ['a' 'b' 'c'] '-'`).toEvaluateTo('a-b-c', globals)
+    await expect(`str.join ['hello' 'world'] ' '`).toEvaluateTo('hello world', globals)
+  })
+
+  test('join with comma separator', async () => {
+    await expect(`str.join ['a' 'b' 'c'] ','`).toEvaluateTo('a,b,c', globals)
+  })
+
+  test('starts-with? checks string prefix', async () => {
+    await expect(`str.starts-with? 'hello' 'hel'`).toEvaluateTo(true, globals)
+    await expect(`str.starts-with? 'hello' 'bye'`).toEvaluateTo(false, globals)
+  })
+
+  test('ends-with? checks string suffix', async () => {
+    await expect(`str.ends-with? 'hello' 'lo'`).toEvaluateTo(true, globals)
+    await expect(`str.ends-with? 'hello' 'he'`).toEvaluateTo(false, globals)
+  })
+
+  test('contains? checks for substring', async () => {
+    await expect(`str.contains? 'hello world' 'o w'`).toEvaluateTo(true, globals)
+    await expect(`str.contains? 'hello' 'bye'`).toEvaluateTo(false, globals)
+  })
+
+  test('empty? checks if string is empty', async () => {
+    await expect(`str.empty? ''`).toEvaluateTo(true, globals)
+    await expect(`str.empty? 'hello'`).toEvaluateTo(false, globals)
+  })
+
+  test('replace replaces first occurrence', async () => {
+    await expect(`str.replace 'hello hello' 'hello' 'hi'`).toEvaluateTo('hi hello', globals)
+  })
+
+  test('replace-all replaces all occurrences', async () => {
+    await expect(`str.replace-all 'hello hello' 'hello' 'hi'`).toEvaluateTo('hi hi', globals)
+  })
+
+  test('slice extracts substring', async () => {
+    await expect(`str.slice 'hello' 1 3`).toEvaluateTo('el', globals)
+    await expect(`str.slice 'hello' 2 null`).toEvaluateTo('llo', globals)
+  })
+
+  test('repeat repeats string', async () => {
+    await expect(`str.repeat 'ha' 3`).toEvaluateTo('hahaha', globals)
+  })
+
+  test('pad-start pads beginning', async () => {
+    await expect(`str.pad-start '5' 3 '0'`).toEvaluateTo('005', globals)
+  })
+
+  test('pad-end pads end', async () => {
+    await expect(`str.pad-end '5' 3 '0'`).toEvaluateTo('500', globals)
+  })
+
+  test('lines splits by newlines', async () => {
+    await expect(`str.lines 'a\\nb\\nc'`).toEvaluateTo(['a', 'b', 'c'], globals)
+  })
+
+  test('chars splits into characters', async () => {
+    await expect(`str.chars 'abc'`).toEvaluateTo(['a', 'b', 'c'], globals)
+  })
+
+  test('index-of finds substring position', async () => {
+    await expect(`str.index-of 'hello world' 'world'`).toEvaluateTo(6, globals)
+    await expect(`str.index-of 'hello' 'bye'`).toEvaluateTo(-1, globals)
+  })
+
+  test('last-index-of finds last occurrence', async () => {
+    await expect(`str.last-index-of 'hello hello' 'hello'`).toEvaluateTo(6, globals)
+  })
+})
+
+describe('type predicates', () => {
+  test('string? checks for string type', async () => {
+    await expect(`string? 'hello'`).toEvaluateTo(true, globals)
+    await expect(`string? 42`).toEvaluateTo(false, globals)
+  })
+
+  test('number? checks for number type', async () => {
+    await expect(`number? 42`).toEvaluateTo(true, globals)
+    await expect(`number? 'hello'`).toEvaluateTo(false, globals)
+  })
+
+  test('boolean? checks for boolean type', async () => {
+    await expect(`boolean? true`).toEvaluateTo(true, globals)
+    await expect(`boolean? 42`).toEvaluateTo(false, globals)
+  })
+
+  test('array? checks for array type', async () => {
+    await expect(`array? [1 2 3]`).toEvaluateTo(true, globals)
+    await expect(`array? 42`).toEvaluateTo(false, globals)
+  })
+
+  test('dict? checks for dict type', async () => {
+    await expect(`dict? [a=1]`).toEvaluateTo(true, globals)
+    await expect(`dict? []`).toEvaluateTo(false, globals)
+  })
+
+  test('null? checks for null type', async () => {
+    await expect(`null? null`).toEvaluateTo(true, globals)
+    await expect(`null? 42`).toEvaluateTo(false, globals)
+  })
+
+  test('some? checks for non-null', async () => {
+    await expect(`some? 42`).toEvaluateTo(true, globals)
+    await expect(`some? null`).toEvaluateTo(false, globals)
+  })
+})
+
+describe('boolean logic', () => {
+  test('not negates value', async () => {
+    await expect(`not true`).toEvaluateTo(false, globals)
+    await expect(`not false`).toEvaluateTo(true, globals)
+    await expect(`not 42`).toEvaluateTo(false, globals)
+    await expect(`not null`).toEvaluateTo(true, globals)
+  })
+})
+
+describe('utilities', () => {
+  test('inc increments by 1', async () => {
+    await expect(`inc 5`).toEvaluateTo(6, globals)
+    await expect(`inc -1`).toEvaluateTo(0, globals)
+  })
+
+  test('dec decrements by 1', async () => {
+    await expect(`dec 5`).toEvaluateTo(4, globals)
+    await expect(`dec 0`).toEvaluateTo(-1, globals)
+  })
+
+  test('identity returns value as-is', async () => {
+    await expect(`identity 42`).toEvaluateTo(42, globals)
+    await expect(`identity 'hello'`).toEvaluateTo('hello', globals)
+  })
+})
+
+describe('introspection', () => {
+  test('type returns proper types', async () => {
+    await expect(`type 'hello'`).toEvaluateTo('string', globals)
+    await expect(`type 42`).toEvaluateTo('number', globals)
+    await expect(`type true`).toEvaluateTo('boolean', globals)
+    await expect(`type false`).toEvaluateTo('boolean', globals)
+    await expect(`type null`).toEvaluateTo('null', globals)
+    await expect(`type [1 2 3]`).toEvaluateTo('array', globals)
+    await expect(`type [a=1 b=2]`).toEvaluateTo('dict', globals)
+  })
+
+  test('length', async () => {
+    await expect(`length 'hello'`).toEvaluateTo(5, globals)
+    await expect(`length [1 2 3]`).toEvaluateTo(3, globals)
+    await expect(`length [a=1 b=2]`).toEvaluateTo(2, globals)
+    await expect(`length 42`).toEvaluateTo(0, globals)
+    await expect(`length true`).toEvaluateTo(0, globals)
+    await expect(`length null`).toEvaluateTo(0, globals)
+  })
+
+  test('inspect formats values', async () => {
+    // Just test that inspect returns something for now
+    // (we'd need more complex assertion to check the actual format)
+    await expect(`type (inspect 'hello')`).toEvaluateTo('string', globals)
+  })
+
+  test('describe describes values', async () => {
+    // Just test that inspect returns something for now
+    // (we'd need more complex assertion to check the actual format)
+    await expect(`describe 'hello'`).toEvaluateTo("#<string: \u001b[32m'hello\u001b[32m'\u001b[0m>", globals)
+  })
+})
+
+describe('collections', () => {
+  test('literal array creates array from arguments', async () => {
+    await expect(`[ 1 2 3 ]`).toEvaluateTo([1, 2, 3], globals)
+    await expect(`['a' 'b']`).toEvaluateTo(['a', 'b'], globals)
+    await expect(`[]`).toEvaluateTo([], globals)
+  })
+
+  test('literal dict creates object from named arguments', async () => {
+    await expect(`[ a=1 b=2 ]`).toEvaluateTo({ a: 1, b: 2 }, globals)
+    await expect(`[=]`).toEvaluateTo({}, globals)
+  })
+
+  test('at retrieves element at index', async () => {
+    await expect(`at [10 20 30] 0`).toEvaluateTo(10, globals)
+    await expect(`at [10 20 30] 2`).toEvaluateTo(30, globals)
+  })
+
+  test('at retrieves property from object', async () => {
+    await expect(`at [name='test'] 'name'`).toEvaluateTo('test', globals)
+  })
+
+  test('slice extracts array subset', async () => {
+    await expect(`list.slice [1 2 3 4 5] 1 3`).toEvaluateTo([2, 3], globals)
+    await expect(`list.slice [1 2 3 4 5] 2 5`).toEvaluateTo([3, 4, 5], globals)
+  })
+
+  test('range creates number sequence', async () => {
+    await expect(`range 0 5`).toEvaluateTo([0, 1, 2, 3, 4, 5], globals)
+    await expect(`range 3 6`).toEvaluateTo([3, 4, 5, 6], globals)
+  })
+
+  test('range with single argument starts from 0', async () => {
+    await expect(`range 3 null`).toEvaluateTo([0, 1, 2, 3], globals)
+    await expect(`range 0 null`).toEvaluateTo([0], globals)
+  })
+
+  test('empty? checks if list, dict, string is empty', async () => {
+    await expect(`empty? []`).toEvaluateTo(true, globals)
+    await expect(`empty? [1]`).toEvaluateTo(false, globals)
+
+    await expect(`empty? [=]`).toEvaluateTo(true, globals)
+    await expect(`empty? [a=true]`).toEvaluateTo(false, globals)
+
+    await expect(`empty? ''`).toEvaluateTo(true, globals)
+    await expect(`empty? 'cat'`).toEvaluateTo(false, globals)
+    await expect(`empty? meow`).toEvaluateTo(false, globals)
+  })
+
+  test('list.filter keeps matching elements', async () => {
+    await expect(`
+      is-positive = do x:
+        x == 3 or x == 4 or x == 5
+      end
+      list.filter [1 2 3 4 5] is-positive
+    `).toEvaluateTo([3, 4, 5], globals)
+  })
+
+  test('list.reduce accumulates values', async () => {
+    await expect(`
+      add = do acc x:
+        acc + x
+      end
+      list.reduce [1 2 3 4] add 0
+    `).toEvaluateTo(10, globals)
+  })
+
+  test('list.find returns first match', async () => {
+    await expect(`
+      is-four = do x:
+        x == 4
+      end
+      list.find [1 2 4 5] is-four
+    `).toEvaluateTo(4, globals)
+  })
+
+  test('list.find returns null if no match', async () => {
+    await expect(`
+      is-ten = do x: x == 10 end
+      list.find [1 2 3] is-ten
+    `).toEvaluateTo(null, globals)
+  })
+
+  test('list.empty? checks if list is empty', async () => {
+    await expect(`list.empty? []`).toEvaluateTo(true, globals)
+    await expect(`list.empty? [1]`).toEvaluateTo(false, globals)
+  })
+
+  test('list.contains? checks for element', async () => {
+    await expect(`list.contains? [1 2 3] 2`).toEvaluateTo(true, globals)
+    await expect(`list.contains? [1 2 3] 5`).toEvaluateTo(false, globals)
+  })
+
+  test('list.reverse reverses array', async () => {
+    await expect(`list.reverse [1 2 3]`).toEvaluateTo([3, 2, 1], globals)
+  })
+
+  test('list.concat combines arrays', async () => {
+    await expect(`list.concat [1 2] [3 4]`).toEvaluateTo([1, 2, 3, 4], globals)
+  })
+
+  test('list.flatten flattens nested arrays', async () => {
+    await expect(`list.flatten [[1 2] [3 4]] 1`).toEvaluateTo([1, 2, 3, 4], globals)
+  })
+
+  test('list.unique removes duplicates', async () => {
+    await expect(`list.unique [1 2 2 3 1]`).toEvaluateTo([1, 2, 3], globals)
+  })
+
+  test('list.zip combines two arrays', async () => {
+    await expect(`list.zip [1 2] [3 4]`).toEvaluateTo([[1, 3], [2, 4]], globals)
+  })
+
+  test('list.first returns first element', async () => {
+    await expect(`list.first [1 2 3]`).toEvaluateTo(1, globals)
+    await expect(`list.first []`).toEvaluateTo(null, globals)
+  })
+
+  test('list.last returns last element', async () => {
+    await expect(`list.last [1 2 3]`).toEvaluateTo(3, globals)
+    await expect(`list.last []`).toEvaluateTo(null, globals)
+  })
+
+  test('list.rest returns all but first', async () => {
+    await expect(`list.rest [1 2 3]`).toEvaluateTo([2, 3], globals)
+  })
+
+  test('list.take returns first n elements', async () => {
+    await expect(`list.take [1 2 3 4 5] 3`).toEvaluateTo([1, 2, 3], globals)
+  })
+
+  test('list.drop skips first n elements', async () => {
+    await expect(`list.drop [1 2 3 4 5] 2`).toEvaluateTo([3, 4, 5], globals)
+  })
+
+  test('list.append adds to end', async () => {
+    await expect(`list.append [1 2] 3`).toEvaluateTo([1, 2, 3], globals)
+  })
+
+  test('list.prepend adds to start', async () => {
+    await expect(`list.prepend [2 3] 1`).toEvaluateTo([1, 2, 3], globals)
+  })
+
+  test('list.index-of finds element index', async () => {
+    await expect(`list.index-of [1 2 3] 2`).toEvaluateTo(1, globals)
+    await expect(`list.index-of [1 2 3] 5`).toEvaluateTo(-1, globals)
+  })
+
+  test('list.any? checks if any element matches', async () => {
+    await expect(`
+      gt-three = do x: x > 3 end
+      list.any? [1 2 4 5] gt-three
+    `).toEvaluateTo(true, globals)
+    await expect(`
+      gt-ten = do x: x > 10 end
+      list.any? [1 2 3] gt-ten
+    `).toEvaluateTo(false, globals)
+  })
+
+  test('list.all? checks if all elements match', async () => {
+    await expect(`
+      positive = do x: x > 0 end
+      list.all? [1 2 3] positive
+    `).toEvaluateTo(true, globals)
+    await expect(`
+      positive = do x: x > 0 end
+      list.all? [1 -2 3] positive
+    `).toEvaluateTo(false, globals)
+  })
+
+  test('list.sum adds all numbers', async () => {
+    await expect(`list.sum [1 2 3 4]`).toEvaluateTo(10, globals)
+    await expect(`list.sum []`).toEvaluateTo(0, globals)
+  })
+
+  test('list.count counts matching elements', async () => {
+    await expect(`
+      gt-two = do x: x > 2 end
+      list.count [1 2 3 4 5] gt-two
+    `).toEvaluateTo(3, globals)
+  })
+
+  test('list.partition splits array by predicate', async () => {
+    await expect(`
+      gt-two = do x: x > 2 end
+      list.partition [1 2 3 4 5] gt-two
+    `).toEvaluateTo([[3, 4, 5], [1, 2]], globals)
+  })
+
+  test('list.compact removes null values', async () => {
+    await expect(`list.compact [1 null 2 null 3]`).toEvaluateTo([1, 2, 3], globals)
+  })
+
+  test('list.group-by groups by key function', async () => {
+    await expect(`
+      get-type = do x:
+        if (string? x):
+          'str'
+        else:
+          'num'
+        end
+      end
+      list.group-by ['a' 1 'b' 2] get-type
+    `).toEvaluateTo({ str: ['a', 'b'], num: [1, 2] }, globals)
+  })
+})
+
+describe('enumerables', () => {
+  test('map transforms array elements', async () => {
+    await expect(`
+      double = do x: x * 2 end
+      list.map [1 2 3] double
+    `).toEvaluateTo([2, 4, 6], globals)
+  })
+
+  test('map handles empty array', async () => {
+    await expect(`
+      double = do x: x * 2 end
+      list.map [] double
+    `).toEvaluateTo([], globals)
+  })
+
+  test('each iterates over array', async () => {
+    // Note: each doesn't return the results, it returns null
+    // We can test it runs by checking the return value
+    await expect(`
+      double = do x: x * 2 end
+      each [1 2 3] double
+    `).toEvaluateTo([1, 2, 3], globals)
+  })
+
+  test('each handles empty array', async () => {
+    await expect(`
+      fn = do x: x end
+      each [] fn
+    `).toEvaluateTo([], globals)
+  })
+})
+
+describe('dict operations', () => {
+  test('dict.keys returns all keys', async () => {
+    const result = await (async () => {
+      const { Compiler } = await import('#compiler/compiler')
+      const { run, fromValue } = await import('reefvm')
+      const { setGlobals } = await import('#parser/tokenizer')
+      setGlobals(Object.keys(globals))
+      const c = new Compiler('dict.keys [a=1 b=2 c=3]')
+      const r = await run(c.bytecode, globals)
+      return fromValue(r)
+    })()
+    // Check that all expected keys are present (order may vary)
+    expect(result.sort()).toEqual(['a', 'b', 'c'])
+  })
+
+  test('dict.values returns all values', async () => {
+    const result = await (async () => {
+      const { Compiler } = await import('#compiler/compiler')
+      const { run, fromValue } = await import('reefvm')
+      const { setGlobals } = await import('#parser/tokenizer')
+      setGlobals(Object.keys(globals))
+      const c = new Compiler('dict.values [a=1 b=2]')
+      const r = await run(c.bytecode, globals)
+      return fromValue(r)
+    })()
+    // Check that all expected values are present (order may vary)
+    expect(result.sort()).toEqual([1, 2])
+  })
+
+  test('dict.has? checks for key', async () => {
+    await expect(`dict.has? [a=1 b=2] 'a'`).toEvaluateTo(true, globals)
+    await expect(`dict.has? [a=1 b=2] 'c'`).toEvaluateTo(false, globals)
+  })
+
+  test('dict.get retrieves value with default', async () => {
+    await expect(`dict.get [a=1] 'a' 0`).toEvaluateTo(1, globals)
+    await expect(`dict.get [a=1] 'b' 99`).toEvaluateTo(99, globals)
+  })
+
+  test('dict.set sets value', async () => {
+    await expect(`map = [a=1]; dict.set map 'b' 99; map.b`).toEvaluateTo(99, globals)
+    await expect(`map = [a=1]; dict.set map 'a' 100; map.a`).toEvaluateTo(100, globals)
+  })
+
+  test('dict.empty? checks if dict is empty', async () => {
+    await expect(`dict.empty? [=]`).toEvaluateTo(true, globals)
+    await expect(`dict.empty? [a=1]`).toEvaluateTo(false, globals)
+  })
+
+  test('dict.merge combines dicts', async () => {
+    await expect(`dict.merge [a=1] [b=2]`).toEvaluateTo({ a: 1, b: 2 }, globals)
+  })
+
+  test('dict.map transforms values', async () => {
+    await expect(`
+      double = do v k: v * 2 end
+      dict.map [a=1 b=2] double
+    `).toEvaluateTo({ a: 2, b: 4 }, globals)
+  })
+
+  test('dict.filter keeps matching entries', async () => {
+    await expect(`
+      gt-one = do v k: v > 1 end
+      dict.filter [a=1 b=2 c=3] gt-one
+    `).toEvaluateTo({ b: 2, c: 3 }, globals)
+  })
+
+  test('dict.from-entries creates dict from array', async () => {
+    await expect(`dict.from-entries [['a' 1] ['b' 2]]`).toEvaluateTo({ a: 1, b: 2 }, globals)
+  })
+})
+
+describe('math operations', () => {
+  test('math.abs returns absolute value', async () => {
+    await expect(`math.abs -5`).toEvaluateTo(5, globals)
+    await expect(`math.abs 5`).toEvaluateTo(5, globals)
+  })
+
+  test('math.floor rounds down', async () => {
+    await expect(`math.floor 3.7`).toEvaluateTo(3, globals)
+  })
+
+  test('math.ceil rounds up', async () => {
+    await expect(`math.ceil 3.2`).toEvaluateTo(4, globals)
+  })
+
+  test('math.round rounds to nearest', async () => {
+    await expect(`math.round 3.4`).toEvaluateTo(3, globals)
+    await expect(`math.round 3.6`).toEvaluateTo(4, globals)
+  })
+
+  test('math.min returns minimum', async () => {
+    await expect(`math.min 5 2 8 1`).toEvaluateTo(1, globals)
+  })
+
+  test('math.max returns maximum', async () => {
+    await expect(`math.max 5 2 8 1`).toEvaluateTo(8, globals)
+  })
+
+  test('math.pow computes power', async () => {
+    await expect(`math.pow 2 3`).toEvaluateTo(8, globals)
+  })
+
+  test('math.sqrt computes square root', async () => {
+    await expect(`math.sqrt 16`).toEvaluateTo(4, globals)
+  })
+
+  test('math.even? checks if even', async () => {
+    await expect(`math.even? 4`).toEvaluateTo(true, globals)
+    await expect(`math.even? 5`).toEvaluateTo(false, globals)
+  })
+
+  test('math.odd? checks if odd', async () => {
+    await expect(`math.odd? 5`).toEvaluateTo(true, globals)
+    await expect(`math.odd? 4`).toEvaluateTo(false, globals)
+  })
+
+  test('math.positive? checks if positive', async () => {
+    await expect(`math.positive? 5`).toEvaluateTo(true, globals)
+    await expect(`math.positive? -5`).toEvaluateTo(false, globals)
+    await expect(`math.positive? 0`).toEvaluateTo(false, globals)
+  })
+
+  test('math.negative? checks if negative', async () => {
+    await expect(`math.negative? -5`).toEvaluateTo(true, globals)
+    await expect(`math.negative? 5`).toEvaluateTo(false, globals)
+  })
+
+  test('math.zero? checks if zero', async () => {
+    await expect(`math.zero? 0`).toEvaluateTo(true, globals)
+    await expect(`math.zero? 5`).toEvaluateTo(false, globals)
+  })
+
+  test('math.clamp restricts value to range', async () => {
+    await expect(`math.clamp 5 0 10`).toEvaluateTo(5, globals)
+    await expect(`math.clamp -5 0 10`).toEvaluateTo(0, globals)
+    await expect(`math.clamp 15 0 10`).toEvaluateTo(10, globals)
+  })
+
+  test('math.sign returns sign of number', async () => {
+    await expect(`math.sign 5`).toEvaluateTo(1, globals)
+    await expect(`math.sign -5`).toEvaluateTo(-1, globals)
+    await expect(`math.sign 0`).toEvaluateTo(0, globals)
+  })
+
+  test('math.trunc truncates decimal', async () => {
+    await expect(`math.trunc 3.7`).toEvaluateTo(3, globals)
+    await expect(`math.trunc -3.7`).toEvaluateTo(-3, globals)
+  })
+})
+
+// describe('echo', () => {
+//   test('echo returns null value', async () => {
+//     await expect(`echo 'hello' 'world'`).toEvaluateTo(null, globalFunctions)
+//   })
+
+//   test('echo with array', async () => {
+//     await expect(`echo [1 2 3]`).toEvaluateTo(null, globalFunctions)
+//   })
+
+//   test('echo with multiple arguments', async () => {
+//     await expect(`echo 'test' 42 true`).toEvaluateTo(null, globalFunctions)
+//   })
+// })
diff --git a/src/testSetup.ts b/src/testSetup.ts
index 8e1f4b8..f47218a 100644
--- a/src/testSetup.ts
+++ b/src/testSetup.ts
@@ -1,5 +1,6 @@
 import { expect } from 'bun:test'
 import { parser } from '#parser/shrimp'
+import { setGlobals } from '#parser/tokenizer'
 import { $ } from 'bun'
 import { assert, errorMessage } from '#utils/utils'
 import { Compiler } from '#compiler/compiler'
@@ -30,7 +31,7 @@ await regenerateParser()
 // Type declaration for TypeScript
 declare module 'bun:test' {
   interface Matchers<T> {
-    toMatchTree(expected: string): T
+    toMatchTree(expected: string, globals?: Record<string, any>): T
     toMatchExpression(expected: string): T
     toFailParse(): T
     toEvaluateTo(expected: unknown, globals?: Record<string, any>): Promise<T>
@@ -39,9 +40,10 @@ declare module 'bun:test' {
 }
 
 expect.extend({
-  toMatchTree(received: unknown, expected: string) {
+  toMatchTree(received: unknown, expected: string, globals?: Record<string, any>) {
     assert(typeof received === 'string', 'toMatchTree can only be used with string values')
 
+    if (globals) setGlobals(Object.keys(globals))
     const tree = parser.parse(received)
     const actual = treeToString(tree, received)
     const normalizedExpected = trimWhitespace(expected)
@@ -93,14 +95,11 @@ expect.extend({
     }
   },
 
-  async toEvaluateTo(
-    received: unknown,
-    expected: unknown,
-    globals: Record<string, any> = {}
-  ) {
+  async toEvaluateTo(received: unknown, expected: unknown, globals: Record<string, any> = {}) {
     assert(typeof received === 'string', 'toEvaluateTo can only be used with string values')
 
     try {
+      if (globals) setGlobals(Object.keys(globals))
       const compiler = new Compiler(received)
       const result = await run(compiler.bytecode, globals)
       let value = VMResultToValue(result)
@@ -109,13 +108,10 @@ expect.extend({
       if (expected instanceof RegExp) expected = String(expected)
       if (value instanceof RegExp) value = String(value)
 
-      if (value === expected) {
-        return { pass: true }
-      } else {
-        return {
-          message: () => `Expected evaluation to be ${expected}, but got ${value}`,
-          pass: false,
-        }
+      expect(value).toEqual(expected)
+      return {
+        message: () => `Expected evaluation to be ${expected}, but got ${value}`,
+        pass: true,
       }
     } catch (error) {
       return {
diff --git a/src/utils/tree.ts b/src/utils/tree.ts
index 1682d21..45a9318 100644
--- a/src/utils/tree.ts
+++ b/src/utils/tree.ts
@@ -1,6 +1,5 @@
 import { Tree, TreeCursor } from '@lezer/common'
-import { assertNever } from '#utils/utils'
-import { type Value } from 'reefvm'
+import { type Value, fromValue } from 'reefvm'
 
 export const treeToString = (tree: Tree, input: string): string => {
   const lines: string[] = []
@@ -35,27 +34,5 @@ export const treeToString = (tree: Tree, input: string): string => {
 }
 
 export const VMResultToValue = (result: Value): unknown => {
-  if (
-    result.type === 'number' ||
-    result.type === 'boolean' ||
-    result.type === 'string' ||
-    result.type === 'regex'
-  ) {
-    return result.value
-  } else if (result.type === 'null') {
-    return null
-  } else if (result.type === 'array') {
-    return result.value.map(VMResultToValue)
-  } else if (result.type === 'dict') {
-    const obj: Record<string, unknown> = {}
-    for (const [key, val] of Object.entries(result.value)) {
-      obj[key] = VMResultToValue(val)
-    }
-
-    return obj
-  } else if (result.type === 'function') {
-    return Function
-  } else {
-    assertNever(result)
-  }
+  return result.type === 'function' ? Function : fromValue(result)
 }