- id: js-syntax-error-unexpected-token
  name: "JavaScript Syntax Error - Unexpected Token"
  pattern: "SyntaxError: Unexpected token"
  fix: "Check for missing commas, parentheses, or braces. Review the specific line for syntax issues."
  description: "An unexpected token was encountered"
  severity: error
  language: javascript
  tool: node
  tags: [syntax, token]
  priority: 10

- id: js-reference-error
  name: "JavaScript Reference Error"
  pattern: "ReferenceError: (?P<name>[a-zA-Z_][a-zA-Z0-9_]*) is not defined"
  fix: "Define '{name}' before using it, or check for typos in the variable/function name."
  description: "A reference to an undefined variable or function"
  severity: error
  language: javascript
  tool: node
  tags: [reference, undefined]
  priority: 9

- id: js-type-error-cannot-read
  name: "JavaScript Type Error - Cannot Read Property"
  pattern: "TypeError: Cannot read (property|properties) '(?P<property>[^']+)' of (?P<object>undefined|null)"
  fix: "Check if '{object}' is defined before accessing '{property}'. Use optional chaining (?.) or null checks."
  description: "Cannot read property of undefined or null"
  severity: error
  language: javascript
  tool: node
  tags: [type, property, undefined]
  priority: 9

- id: js-type-error-cannot-call
  name: "JavaScript Type Error - Not a Function"
  pattern: "TypeError: (?P<object>[a-zA-Z_][a-zA-Z0-9_]*) is not a function"
  fix: "Check that '{object}' is a function. You may have forgotten parentheses when calling a function."
  description: "Attempting to call a non-function"
  severity: error
  language: javascript
  tool: node
  tags: [type, function]
  priority: 9

- id: js-module-not-found
  name: "JavaScript Module Not Found"
  pattern: "Error: Cannot find module '(?P<module>[^']+)'"
  fix: "Install the module: npm install {module}"
  description: "A module could not be found"
  severity: error
  language: javascript
  tool: node
  tags: [module, import]
  priority: 9

- id: js-cannot-use-strict
  name: "JavaScript Strict Mode Error"
  pattern: "SyntaxError: Cannot use strict mode inside with strict mode"
  fix: "Remove the 'with' statement or refactor your code to not require it."
  description: "Cannot use strict mode with 'with' statement"
  severity: error
  language: javascript
  tool: node
  tags: [strict, with]
  priority: 8

- id: js-duplicate-identifier
  name: "JavaScript Duplicate Identifier"
  pattern: "SyntaxError: Duplicate binding"
  fix: "Remove the duplicate variable/function declaration."
  description: "A duplicate identifier was declared"
  severity: error
  language: javascript
  tool: node
  tags: [duplicate, declaration]
  priority: 8

- id: ts-type-error
  name: "TypeScript Type Error"
  pattern: "TypeScript Error: (?P<message>.*)"
  fix: "Check types. {message}"
  description: "TypeScript type checking failed"
  severity: error
  language: typescript
  tool: tsc
  tags: [typescript, type]
  priority: 8

- id: ts-property-missing
  name: "TypeScript Property Missing"
  pattern: "Property '(?P<property>[^']+)' does not exist on type '(?P<type>[^']+)'"
  fix: "Add the property '{property}' to the type definition or check for typos."
  description: "A property is missing from a type"
  severity: error
  language: typescript
  tool: tsc
  tags: [typescript, property, type]
  priority: 8