PostHog onboarding prompt capture for AI attribution
When a user says AI sent them, ask for the exact prompt in onboarding so the growth team learns from real buyer language instead of synthetic guesses.
Why this can grow a startup
Most AEO reporting stops at vague channel attribution. That misses the thing that actually helps the next content decision: the sentence the buyer typed. PostHog solved that by adding a conditional onboarding question for AI-sourced signups and collecting the literal prompt. That is stronger than third-party estimates because it comes from a person who converted, not from a tool simulating intent. The downstream value is broad. The team gets phrasing to reuse in pages, better prompt sets for visibility tracking, and early warning when the product is being discovered for reasons it did not expect. It also costs almost nothing compared with buying yet another reporting product.
Company example
PostHog added a conditional onboarding question asking AI-sourced signups which prompt they used and says it collected 9,214 real prompts in its first three months, with a daily Slack report of 50-100+ examples.
Source and metric
Source: PostHog: LLMs are picking winners. Here's how to become one. · Browse PostHog: LLMs are picking winners. Here's how to become one. tactics
PostHog captured 9,214 real AI-origin prompts in three months and now reviews 50-100+ new prompt examples in Slack each morning.
When to use it
Use this when AI visibility, Onboarding, Attribution is relevant to self-reported attribution, prompt capture, onboarding survey and you can run a bounded test with a free budget.
When not to use it
Do not use it as a substitute for customer evidence, a clear owner, or a measurable stop condition. Local platform rules and market behavior still need checking.
Founder checklist
- Read PostHog: LLMs are picking winners. Here's how to become one. and identify what is directly supported.
- Choose one channel context: AI visibility, Onboarding, Attribution.
- Define the test around PostHog captured 9,214 real AI-origin prompts in three months and now reviews 50-100+ new prompt examples in Slack each morning..
- Set an owner, evidence window, and stop condition before launch.
Explore the context
Apply this with an operator
Turn isolated search tactics into a crawlable visibility system tied to demand and proof.