AI Email Reply Support App

Overview

A web application that automatically structures received email content, identifies requests, questions, deadlines, to-dos, and missing information, and generates draft replies for human review before sending. Rather than simple text generation, it supports a human-in-the-loop workflow—"receive → understand → extract requirements → identify missing information → generate reply → human review"—all on a single screen.

Key Features

• Structured Analysis of Email Content
  - Automatically extracts sender, purpose, requests, questions, deadlines, amounts, and important items
  - Determines whether a reply is needed and assesses urgency
  - Provides one-line summary and task organization
• Clear Indication of Missing Information
  - Alerts when essential responses are incomplete
  - Displays unanswered items clearly (e.g., "candidate dates not provided")
  - Visualizes required input areas with placeholders
• Multiple Reply Suggestions
  - Three options (polite, standard, concise) displayed side-by-side for comparison
  - 7 tone options (polite, business, casual, gentle, direct, apologetic, negotiation)
  - Selectable from 3 length options and 6 relationship types with the recipient
• Reply Review and Editing
  - Rewrite function for selected text only (make polite, shorten, soften, clarify)
  - Automatic review from 7 perspectives (rudeness/tone, missing answers, misunderstandings, length, honorifics, typos, dates/amounts/names)
  - AI questions limited to the input email scope
• Email Thread Support
  - Paste either email body or entire thread
  - Conservatively split repeated headers
  - Mark past questions as answered and organize latest open questions
• Hallucination Prevention
  - Structured validation that prevents adding dates, amounts, names, or commitments without input
  - Output validation via Zod and JSON Schema
  - Treats unsupported inferences as "unknown" or "unclear"

How to Use

The public demo requires no registration or API keys and works with 5 sample emails (complaint, quote request, schedule coordination, hiring notification, payment reminder). Input content is not sent to external AI services.

Target Users

• Sales and administrative staff who handle many emails
• Those seeking to balance reply quality and efficiency
• Those who want to review AI output before sending