PromptSentry

Detect hidden instructions in business files, PDFs, scans and pasted text before they manipulate AI tools or change your workflow.

Detect hidden instructions in documents and images before they manipulate your AI tools.

PromptSentry reviews business documents, PDFs, DOCX files, images and pasted text for prompt injection, jailbreak attempts, hidden text and encoded directions that could change how an AI assistant, agent or internal tool responds.

Use PromptSentry before uploading or pasting outside content into AI. It helps you catch unsafe AI instructions in contracts, resumes, invoices, vendor files, support tickets, policies, client material, research and internal knowledge base content.

Use PromptSentry for:

• Business AI safety checks
• Document review before using AI tools
• Vendor and client document screening
• Contract, invoice, resume and support ticket review
• Data privacy workflows for sensitive content
• Teams using AI assistants, agents, RAG systems and internal tools

What you get:

• Fast Safe, Suspicious or Dangerous result
• Plain-language risk notes
• Confidence and source context
• Scan history for follow-up review
• Adjustable sensitivity for your workflow
• Private on-device scanning

PromptSentry works as an AI scanner, file scanner and document review tool for professionals who need a simple AI security checkpoint between untrusted content and business AI workflows. Scan first, understand the risk, then decide whether to upload, edit or block the file.

PromptSentry supports safer AI work without slowing down your team.

PromptSentry is an assistive security tool. Detection is probabilistic and should be used as one layer of your review process.