Qurtoo Qurtoo

Qurtoo · by Kief Studio

Prompt engineering,
organized the way you ship.

Daily techniques with copy-paste prompts, and multi-step playbooks with failure modes, evals, and the recipes we use on real client agents. All of it free.

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75+ articles · 5 playbooks · free, no account needed

Example prompt free sample pattern
SYSTEM
You classify support tickets. Return ONLY JSON:
  {"label":"billing"|"technical"|"account","confidence":0-1,"reason":string}

Prefer what the user wants fixed, not the root cause.
Low confidence → label still required; reason must say "ambiguous".

USER
{ticket_text}
Open free playbook: Build a Classification Prompt That Beats Fine-Tuning →

75

Published guides

5

Pillars

5

Free playbooks

Daily

New free posts

Free playbook

Start with something you can run today

Not a teaser PDF: a full recipe with steps, eval notes, and prompts you can adapt. The advanced playbooks use the same format with deeper chains, and they're free too.

Open: Build a Classification Prompt That Beats Fine-Tuning
Free

Build a Classification Prompt That Beats Fine-Tuning

A production-ready classification prompt for your own labels, with self-consistency voting, structured output, and an eval harness, with 90%+ accuracy as the target and no fine-tuning.

techniques ~45 minutes Difficulty 2/5

Library

Five pillars. One reference.

Jump into a pillar or search the whole library. Every post ships with working prompts.

Techniques 28 guides Chain-of-thought, few-shot, structured output, meta-prompting. Agentic 29 guides Multi-step chains, tool use, orchestration, feedback loops. Security 8 guides Injection defense, red/blue team, threat analysis. Development 5 guides Code gen, debugging, tests, CI: prompts that ship code. Applied 5 guides Healthcare, finance, legal, marketing by role.
All articles Glossary Papers

Qurtoo is free

Blog posts teach the idea.
Playbooks ship the chain.

Every playbook is open in full: multi-step recipes with failure modes, model variations, and eval harnesses, the same patterns we use on client agent systems.

  • Full prompt chains you paste into Claude, Cursor, or GPT
  • What breaks in production, and the fix
  • 5 playbooks live now · new ones as we ship
  • No paywall, no checkout, no account needed
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Advanced · free

Supervisor-Worker Agent Pattern for Cost Optimization

Cut agent costs by routing cheap sub-tasks to Haiku-class models and reserving the frontier for planning. Includes a full Python reference implementation, cost accounting, and the fallback logic.

Advanced · free

Build a RAG Eval Harness That Catches Regressions

A repeatable test suite measuring faithfulness, answer relevance, and context precision across 50-200 Q&A pairs. Ship gates on it; your RAG quality stops being vibes-based and becomes observable.

Advanced · free

Prompt Injection Test Suite for Production Agents

A regression-runnable suite of 40+ injection probes that catches the classes of attacks your agent will actually face. Run nightly, track pass rate per prompt/model version, catch regressions before users do.

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Who writes this

Practitioner reference, not hype.

Qurtoo is a Kief Studio brand. Content is written for people who run agents and LLM features in production, not for engagement farming.

Model-agnostic

Claude, GPT, Gemini, Llama, with differences noted where they matter.

Real prompts

Every post includes examples you can copy and adapt immediately.

Team training

Need this for your org? Kief Studio workshops.

Learn it free. Ship it.

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