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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | 4x 210x 13x 197x 11x 186x 12x 174x 174x 4x 33x 33x 33x 24x 24x 24x | import { z } from 'zod';
// Helper to validate JavaScript code
export const validateJavaScriptCode = (code: string): boolean => {
// Check for common HTML entities that shouldn't be in JS
if (/"|&|<|>|&#\d+;|&\w+;/.test(code)) {
return false;
}
// Basic check to ensure it's not HTML
if (/<(!DOCTYPE|html|body|head|script|style)\b/i.test(code)) {
return false;
}
// Check for literal \n, \t, \r outside of strings (common LLM mistake)
// This is tricky - we'll check if the code has these patterns in a way that suggests
// they're meant to be actual newlines/tabs rather than escape sequences in strings
// Look for patterns like: ;\n or }\n or )\n which suggest literal newlines
if (/[;})]\s*\\n|\\n\s*[{(/]/.test(code)) {
return false;
}
// Check for obvious cases of literal \n between statements
Iif (/[;})]\s*\\n\s*\w/.test(code)) {
return false;
}
return true;
};
// Helper to create schema that rejects session_id
export const createStatelessSchema = <T extends z.ZodObject<z.ZodRawShape>>(schema: T, toolName: string) => {
// Tool-specific guidance for common scenarios
const toolGuidance: Record<string, string> = {
capture_screenshot: 'To capture screenshots with sessions, use crawl(session_id, screenshot: true)',
generate_pdf: 'To generate PDFs with sessions, use crawl(session_id, pdf: true)',
execute_js: 'To run JavaScript with sessions, use crawl(session_id, js_code: [...])',
get_html: 'To get HTML with sessions, use crawl(session_id)',
extract_with_llm: 'To extract data with sessions, first use crawl(session_id) then extract from the response',
};
const message = `${toolName} does not support session_id. This tool is stateless - each call creates a new browser. ${
toolGuidance[toolName] || 'For persistent operations, use crawl with session_id.'
}`;
return z
.object({
session_id: z.never({ message }).optional(),
})
.passthrough()
.and(schema)
.transform((data) => {
const { session_id, ...rest } = data;
Iif (session_id !== undefined) {
throw new Error(message);
}
return rest as z.infer<T>;
});
};
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