Open-source blurt adds screen annotation, letting Claude Code build a website with 5 minutes of human time

AGI Hunt · wechat · 2026-10-11

The author's open-source tool blurt feeds screen recordings plus voice to Claude Code/Codex and turns them into annotated task lists. Based on a reader suggestion, a new pen feature lets you hold ⌃ and draw circles/lines on screen while narrating; strokes are baked into the video and also saved as coordinate/timestamp data for the agent, auto-clearing 3 seconds after the last stroke.

The author then handed the Mac entirely to Claude Code, which used the new feature to record a 4m56s tour of competitor sites (19 strokes, 16 markers, all correctly placed), self-organized it into 16 items, a 12-item requirements doc and a design doc, then built and deployed the official site blurt.agihunt.info as v0.4.0. Total: a few hours and under 100M tokens, with under 5 minutes of human involvement.

Notable details:

Strokes originally vanished per-stroke, breaking multi-circle screenshots; fixed to clear together 3s after the last stroke
Cloudflare's wrangler CLI hides an 'Notice to agents' pitch in its output, steering AI-recommended deploys to Workers
ASR errors (Jam heard as 'Gm') are corrected via on-screen URLs, drawn annotations and repo vocabulary
Framed as a general 'watch, talk, organize' workflow for gathering requirements, not just bug reporting

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Open-source blurt adds screen annotation, letting Claude Code build a website with 5 minutes of human time

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