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2 Comments

Solo founder, been shipping Claude tooling for 3 months. Got tired ofReddit posts claiming "this one prompt changes everything" without any

Solo founder, been shipping Claude tooling for 3 months. Got tired of
Reddit posts claiming "this one prompt changes everything" without any
data.

Ran controlled A/B tests on 120 shared codes. 47% are placebo.

Free library: clskillshub.com/prompts
Full data + cheat sheet ($10-25): clskillshub.com/cheat-sheet

Happy to share raw test data on any specific code in the comments.
Built this because I think prompt "secrets" need the same rigor we
apply to any other tool. Open to feedback.

on April 20, 2026
  1. 1

    This is solid — especially calling out placebo.

    But right now it still reads like:
    → “better prompts”

    Which puts you in the same bucket you’re arguing against.

    The real angle here is:
    → “prompt performance, measured — not guessed”

    That’s a different category.

    If people don’t instantly see:
    “this helps me avoid wasting time on fake wins”
    they’ll treat it like another prompt library.

    Also — if you push this into a real product, the name/brand will need to carry that credibility.

    Happy to share a few directions if you go that route.

  2. 1

    The 47% placebo rate is a useful number to lead with because it reframes the conversation from 'which prompts work' to 'most shared prompts are useless and here is how I proved it.' The controlled A/B methodology is the actual differentiator here, not the cheat sheet itself. Curious what the distribution looked like across the 120 tests. Did the 53% that showed real effect cluster around specific prompt categories, or was it spread across types?

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