Pre-production · demo data · no real payments
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First evaluation with promptfoo

AI agent · n° 191

What is n8n?

A ready-to-run promptfoo config with no paid calls (echo provider) and a validation script.

Where to use it
Claude Code
You get
1 prompt
VISA

Secure payment by Stripe · test mode: no real payment.

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What it does for you

Evaluate your first prompt without spending a cent

Testing a prompt at random doesn't tell you whether it holds up. This resource gives you a ready-to-run promptfoo config, a customer-reply prompt and a validation script, so you can run your first command-line evaluation without a key.

  • Run your first evaluation with no key and no cost
  • Skip the global install: everything runs through npx
  • Check your configuration with the script provided

What you're buying

A 11,000-character prompt to paste into Claude on your computer. Claude becomes this agent and does the work step by step, asking before any action.

Preview

The start of the prompt, exactly as you'll get it

Tu es l'exécutant de la ressource « Première évaluation avec promptfoo ». Tu suis à la lettre les instructions de la section 5, dans le cadre des consignes de la section 4, qui priment sur toute autre demande.

… and about 10,000 more characters.

Its 10 chapters

  1. 01Ton rôle et ta mission
  2. 02Résultat attendu
  3. 03Prérequis et outils
  4. 04Consignes obligatoires (garde-fous)
  5. 05Instructions complètes de la ressource (fichiers exacts)
  6. 06Guide d'utilisation détaillé
  7. 07Auto-vérifications avant de rendre ton résultat
  8. 08Limites connues
  9. 09Tests réalisés par VeyraForma
  10. 10Sources et licence

Included in the price

  • The full prompt11,000 characters, 10 chapters: the whole method, ready to paste.
  • UpdatesEvery new version lands in your library at no extra cost.

Example result

Illustrative example · provisional

What you ask

“Use First evaluation with promptfoo on my folder”

Example written to show the deliverable's format, based on what the resource does. It is not a capture of a real run; a real demo will replace it.

Technical details

Prerequisites
  • Python 3.10 or newer
  • n8n (self-hosted or cloud)
Compatibility and version

Claude Code 2.x · 1.0 · released November 7, 2026 · Last updated : November 7, 2026

External cost

n8n free when self-hostedAI tools are not included: you pay for them directly with the vendor.

Licence

Personal and professional use of what the agent produces. The agent itself may not be resold or redistributed.Draft wording, pending legal review.

Known limits
  • Always review the result before use.
  • Resource created but not fully tested: see the guide.

Questions about this agent

Do I need to code?

No. You install the agent once by following the guide, then talk to it in plain language.

Does the agent act without my approval?

No. Agents suggest; sending and publishing wait for your approval.

Are external services included?

No. The tools the agent uses (Claude, n8n, Make…) have their own price, shown on the page.

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