llms.txt
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+ - [LinkedIn outreach: how we booked 321 calls in 2 months](https://needle.app/blog/how-we-booked-321-calls-linkedin-outreach): First-party case study. 321 calls booked with signal-based LinkedIn outreach; the 3-step Claude + Needle setup with prompts; reply rates by buying signal for 2,253 people (45.8% creator post engagers down to 9.9% page followers); what failed.