Spy Agent — X Engagement Checker

Scan X (Twitter) post replies to find which members of your group engaged. Identify missing engagements instantly.

Spy Agent is a productivity tool for X (Twitter) community managers, engagement coordinators, and group admins who need to verify reply participation on specific posts. WHAT IT DOES ────────────── Paste a list of usernames into Spy Agent, open the target tweet on X, and hit "Check Engagement." The extension scrolls through all visible replies and tells you exactly which users replied and which ones are missing — in real time. KEY FEATURES ────────────── ✓ Real-time reply scanning — live progress bar and instant found ticker ✓ Missing & found lists — copy and export as CSV / JSON / TXT ✓ Auto-retry — re-scans for missing users automatically ✓ Session restore — close and resume mid-scan ✓ 4 parallel scan slots — S1 to S4 simultaneously ✓ Presets — save and reload username groups instantly ✓ Scan history — last 4 scans with full details ✓ Stats dashboard — found rate and visual charts ✓ Side panel mode — dock beside X without covering your feed ✓ Keyboard shortcuts — Alt+S start, Alt+P pause, Alt+D panel, Alt+, settings ✓ Rate-limit detection — auto-pauses when X throttles the page ✓ Notifications — desktop alerts on scan complete PRIVACY ────────────── - No data collected by the developer - Usernames stored locally on your device only - Network requests only to x.com and optionally your own Supabase project - No browsing tracking, no DM access, no credentials REQUIREMENTS ────────────── - x.com or twitter.com - Chrome 116 or later - Optional: Access ID for team features