00 / ON-DEVICE PERCEIVE
LOCAL · DETERMINISTIC · ZERO EGRESS
PRY — PRIVATE BROWSER AGENT

Automate your browser.
Expose zero data.

PRY detects, tokenizes, and redacts PII 100% inside your browser. Automated form filling and web tasks with provable, DevTools-verifiable privacy.

git clone https://github.com/shashank-tomar0/pry.gitnpm install && npm run build
on-device privacy pipelineredacted · re-OCR verified · clean
without PRY
  • Cloud agents leak screenshotsRaw pixels sent to 3rd party APIs on every task
  • PII exposed to remote serversPasswords, Aadhaar, PAN & credit cards sent unencrypted
  • High risk of privacy breachesNo on-device filtering or egress control
RAW SCREENSHOTS BROWSER USE COMPUTER USE OPENAI OPERATOR WINDSURF CLAUDE CODE + CLIENTS
Automation was meant to assist — not to expose you.
with PRY
  • On-Device PII DetectionAadhaar, PAN, cards, keys & faces detected 100% inside your browser
  • Egress Guard ProtectionBlocks outbound PII before network transmission
  • Zero Data Leak GuaranteeOnly sanitized structural metadata reaches LLMs
DOM extraction · PII scan · redact YOU PRY 0 KB EGRESS · ON-DEVICE CLAUDE CODEX CURSOR GEMINI WINDSURF + CLIENTS

Perception you can audit.
Privacy you can prove.

01

Tri-Signal Perception

DOM extraction (10ms) + screenshot redaction + local re-OCR verification fused into a unified PageSnapshot. Handles complex web UIs with provable, pixel-level safety.

02

Checksum-Gated PII

Aadhaar Verhoeff validation, Luhn algorithm for cards, and PAN format series checking. Mathematical validation eliminates false positives.

03

Re-OCR Verification

Redacted screenshot frames are re-scanned with local OCR to assert zero residual PII in pixels before anything is sent to any planner.

04

Safety Gate

A single enforcement point blocks typing into credential fields, rejects PII-shaped values, and requires confirmation for irreversible actions like purchases and deletions.

05

Egress Guard & Tripwire

Egress Guard blocks PRY outbound calls containing PII. MAIN-world tripwire monitors page traffic for complete DevTools auditability.

06

Deterministic & Multi-LLM

Sub-100ms offline planning for common form interactions — click by text, fill by label. Multi-provider fallback for Anthropic, OpenAI, OpenRouter, Groq, NVIDIA NIM, and local Ollama.

03 / REPRODUCIBLE EVALUATION

What the privacy benchmark says.

Evaluated across standard Indian web forms, sensitive government portals, and real-world page workflows. Verified using Chrome DevTools network traffic audits.

0.00 KB outbound PII
data egress
100% on-device PII
redaction
Aadhaar (Verhoeff checksum) 1.00
Credit Cards (Luhn algorithm) 1.00
PAN Card (Format & Series) 0.99
Face Detection (FaceDetector ML) 0.95
Re-OCR Pixel Zero-Leak 1.00
Offline Form Planning (Local) <100ms
view privacy audit ↗

Privacy, protected.

git clone https://github.com/shashank-tomar0/pry.git
npm install && npm run build