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SkillsBundleby SANTACONCHA
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Individual AI skill · AI for Construction

invoice-service-trade

Facturación para empresas de servicios de construcción: certificación de obra, anticipos, retenuciones, valoración de trabajo realizado (certificaciones mensuales), y gestión de impagos. Spain: construccion , .

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See how to use it

Free ZIP · One canonical method · Usage example · Installation guide · Licence notices

Sensitive domain

Use it as a draft, not as the final decision.

This skill can touch verifiable rules, deadlines, figures or professional criteria. Check current official sources and validate its output with a qualified professional before acting on it.

No professional review recorded

From file to useful result

How to ask with this skill installed

Installing the skill gives your AI a method. Your request still has to provide the case-specific facts, constraints and expected output.

1Name the real task

Describe the decision or deliverable, not just the topic.

2Provide the evidence

Add source material, audience, limits and known facts.

3Define done

Set format, quality criteria and checks.

Adaptable starting prompt Replace the brackets with your case

What you need first

Provide:

  1. Contract value and payment terms
  2. Work completed (measurement or description)
  3. Retention percentage
  4. Previous certifications (if any)
  5. Whether there are variations (modificados)
  6. Autonomous or company invoicing

Mistakes to avoid

  • Invoicing without certification: Sending invoice before client agrees measurement = dispute
  • Not tracking retention: Losing track of what's owed = cash flow problems
  • Missing IRPF retention: autónomos must apply IRPF, not IVA — wrong = fines
  • Long variations without approval: Doing extra work without signed order = unpaid
  • Invoicing too late: Lose right to payment if statute of limitations runs (5 years)

Choose the right scope

Packs that include this skill

Download only this method or take it together with the rest of its professional area.

This page

Individual skill

The smallest useful download, prepared for a web project or an agent.

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Professional pack

AI for Construction

This skill plus the other methods selected for this professional area.

Same method, different setup

Where will you use it?

We do not duplicate the skill for every platform. We keep one canonical method and explain the correct installation route.

01 ChatGPT

Use it as project knowledge and instructions.

Open web-interface guide → 02 Claude

Add it to a Project and keep the case material separate.

Open web-interface guide → 03 Agents and IDEs

Install SKILL.md in the path expected by your agent.

Compare agent guides →

Traceable by design

Source and licence travel with the file.

SkillsBundle catalogues material of its own and from third parties. Inclusion does not claim original authorship. The individual ZIP preserves the canonical catalogue path and includes the applicable licence notices.

Catalogue path
skills/verticals/construction/skills/invoice-service-trade
Ficha origin
Extracted from SKILL.md
Read terms and licence policy →

Start with one real task

Install the method. Keep your judgement.

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