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posthog.com · newsletter
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detective hog is on it
Your bugs have been getting away with it.
Meet your new witness:
Replay Vision
TL;DR
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The AI that watches session recordings for you – Session Replay records them; Replay Vision flags bugs, scores frustration, tags behavior, and summarizes what happened.
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Or just ask – “why are mobile users dropping at checkout?” via the PostHog MCP, and it runs the scan. Leave it running and it can post findings to Slack.
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It solves its own mysteries – every finding is a queryable event, so PostHog’s self-driving scouts open a PR and drop it in your Inbox to review & merge.
Session Replay records what real users actually do in your product. The catch: someone has to watch it, and that someone was never going to be you. So we hired a detective. Replay Vision watches your recordings for you.
Put a scanner on the case. Scanners are AI agents you point at a set of recordings. Run one on demand, or on a schedule:
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Monitor to answer “did this user hit the paywall and bounce?” – a yes/no verdict, plus a hypothesis for why.
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Scorer to rank sessions by frustration, so you watch the 10 that matter, not the 10,000 that don’t.
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Classifier to tag abandoned checkouts by reason – price, a payment problem, second thoughts, or just browsing.
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Summarizer for a plain-English account of the session.
Or just ask. In PostHog Desktop, Claude, or Cursor, point an agent at the PostHog MCP: “why are mobile users dropping at checkout?” It builds a scanner, runs it, and reads the findings back. Keep it running and it scans new sessions as they land – and can post findings to Slack if you’d rather see them there.
Because every finding lands as a normal event, it becomes a signal for self-driving: a scout spots the pattern, an agent opens the PR, and it lands in your Inbox. You review, you merge, you take the credit.
Roll the cameras
Turn on Session Replay, let a few recordings roll in, then open Replay Vision to point your first scanner. Full steps in the Replay Vision docs.
This email is from a real person who chills more because she doesn't watch session recordings.
Boring, legal bit: We're at 2261 Market Street #4008, CA 94114. Unsubscribe?
