Free Guide
40 pages · 12 chapters · 8 industry playbooks.
NEW · 31-page Skills Report 2026 (free PDF) →
160+ tested Claude prompt codes. Only 7 actually shift reasoning. The rest change how Claude sounds, not what it thinks.
I ran controlled A/B tests over three months — fresh contexts, fixed task batteries, blind-rated outputs. Here's the research, the free report, and the tools built on top of it.
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4.9 · 31 verified buyers
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Instant deliveryL99 · Kill the Hedge
Forces decisive, committed answers. No “it depends”.
− Before
It might be worth considering, perhaps, some of the trade-offs — though of course there are many ways to look at it.+ After
Trade-off: faster ship, weaker tests. Ship it. Harden in week 2.Token delta−38%Decisiveness +2 tiers
Works with•Claude Sonnet 4.6•Opus 4.7•Haiku 4.5•Claude Code 2.x
What we sell
Four products. All built on the same research.
One-time pricing. Lifetime updates. No subscriptions, no seat counts, no upsells.
Cheat Sheet
160+ tested codes with before/after and token deltas.
Plugin
5 slash commands + 7 skills for Claude Code.
Sales Agent Pack
10 founder-voice desktop app. Local-first, BYO key.
Shipping next 30 days
Industry packs, playbooks, and done-for-you work.
SAP and Salesforce packs are live now at launch prices. Production Playbook and Agent Templates are on waitlists. Or book one of the two engagements I run personally.
SAP Prompt Pack
50 prompts for Basis, ABAP, Functional, Architect. Live now.
Salesforce Pack
50 prompts for Apex, LWC, Flow, Architect. Live now, governor-safe.
Production Playbook
120-page field manual. CLAUDE.md, agents, review workflow.
Agent Templates
20 production agents: PR review, migration, bug triage, more.
Done-for-you
Prompt Audit $499 · Custom Agent Build $2,000+
Two fixed-price engagements I run personally — no SDR, no discovery-call gauntlet.
What buyers say
Real testimonials. Real buyers.
“Genuinely the first prompt resource I've used where the author admits half the famous tricks are placebo. The before/after examples settle arguments with my team in seconds — we stopped cargo-culting whatever tweet went viral that week.”
More incoming. Real verified-buyer quotes only — we do not pad this section. Bought something? Reply with a one-line quote and we will add it here (and send a thank-you bonus).
Why this site exists
I tested 120 popular Claude codes for three months. Most don't work.
Every “Claude pro tip” thread on the internet is someone's hunch. I got tired of arguing about it, so I built a rig: fresh contexts per trial, a fixed battery of 24 tasks across writing, coding, and analysis, outputs rated blind by three reviewers on decisiveness, accuracy, and token efficiency.
Forty-seven percent of the widely-shared codes showed no significant lift over a plain prompt. The other 53% did — and a handful were genuinely big. The cheat sheet is those 53%, with the failure modes documented for the rest.
Read the full methodology →