Show HN: ProofShot – Give AI coding agents eyes to verify the UI they build
Open Source — MIT Licensed
Your AI agent says it's done.
Get the proof.
Let your AI agent prove its own work with video recording, error logs, and proof artifacts — every time it ships code.
REC
localhost:3000/board
+ Add
New item
Name
Enable dark mode
Owner
@emma
Priority
P0 P1 P2
Create
🧭 Navigate: /board
🖱 Click: + Add
⌨ Type: Enable dark mode
↕ Scroll down
1 🧭 navigate "http://localhost:3000/board" 0:00
2 👁 snapshot "app page" 0:02
3 🖱 click "+ Add" 0:04
4 ⌨ fill "name" "Enable dark mode" 0:06
5 ⌨ fill "owner" "@emma" 0:07
6 🖱 click "P1" priority 0:08
7 🖱 click "Create" 0:10
8 ↕ scroll down 0:12
9 📷 screenshot "page with new item" 0:14
How it works
Three commands. Full proof.
ProofShot wraps your dev server, records everything the agent does, and outputs a proof bundle when it's done.
1
Start
Launches your dev server, opens headless Chromium, and starts recording video.
proofshot start --run "npm run dev"
2
Test
Your AI agent navigates, clicks, fills forms, and takes screenshots. Every action is logged.
proofshot exec navigate "http://localhost:3000"
proofshot exec screenshot "homepage"
3
Stop
Collects errors, stops recording, trims dead time, and generates your proof artifacts.
proofshot stop
The viewer
Every session, fully reviewable.
Video playback synced with an action timeline, screenshots, and element labels — all in a single standalone HTML file.
Features
Everything you need to verify.
Capture, detect, review, and share — all from one CLI.
Video Recording
Full browser session recording with automatic dead-time trimming. See exactly what the agent did, not the idle waiting.
Error Detection
Captures browser console errors and scans server logs with pattern matching for JavaScript, Python, Go, Rust, and more.
Interactive Timeline
A standalone HTML viewer with synchronized video, screenshots, and an interactive action timeline with element labels.
PR-Ready Artifacts
Generates SUMMARY.md and formatted output ready to paste into pull requests. Visual diff comparison against baselines.
Agent-agnostic
Works with any AI coding agent.
One-time install, then every agent gets visual verification skills automatically.
Claude Code
Cursor
Codex
Gemini CLI
Windsurf
Any MCP-compatible agent
Get started in 30 seconds.
Install the CLI, run the setup, and your AI agent can start recording proof.
Source: Hacker News
