Qurtoo Qurtoo

Qurtoo · by Kief Studio

Prompt engineering,
organized the way you ship.

Free daily techniques with copy-paste prompts. Pro unlocks multi-step playbooks — failure modes, evals, and recipes we use on real client agents.

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88+ articles · 3 Pro playbooks · cancel anytime

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 →

88

Published guides

5

Pillars

3

Pro playbooks

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Not a teaser PDF — a full free recipe with steps, eval notes, and prompts you can adapt. Pro extends the same format with deeper chains.

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 -- typically reaches 90%+ accuracy without any 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 42 guides Chain-of-thought, few-shot, structured output, meta-prompting. Agentic 28 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.
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Qurtoo Pro

Blog posts teach the idea.
Playbooks ship the chain.

Pro unlocks 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
  • 3 playbooks live now · new ones as we ship
  • $9/mo or $90/yr · cancel anytime
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PRO · free preview

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.

PRO · free preview

Supervisor-Worker Agent Pattern for Cost Optimization

Reduce agent costs 70-90% 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.

PRO · free preview

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.

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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 — 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.

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