Before you start
Verified takeoff, location, date, scope and sourced prices. Pack prices are an indicative snapshot, not live Batiprix access.
Construction estimates with Claude: document prices and isolate unknowns →
1. Download the native pack
Keep the complete ZIP without extracting it. If already installed and enabled, skip to step 3.
Download the ZIP pack ↓2. Install and enable in Claude
In Customize > Skills, use + > Create skill > Upload a skill to import the ZIP, then enable it. Check code execution and file creation. Attaching Markdown to a chat does not install a skill.
3. Prepare the inputs
Attach available quotes or rate schedules. State whether supply, installation and ancillary costs are included. Exclude unknown quantities from confirmed totals and identify unpriced items.
4. Request the file and its assumptions
Request detail and trade summary. Confirm tax and local adjustments instead of automatically applying pack defaults. RGE status alone does not determine VAT treatment.
A request to try
Use my estimation-financiere-btp skill. Fictional arithmetic, not market rates: 40 m² at a supplied €50/m² excluding tax; 3 units at €200/unit excluding tax. Another item has no quantity. Deliver the .xlsx with documented subtotal and separate unpriced item, sourced as “fictional user data”. Do not claim to consult Batiprix. VAT is unconfirmed: keep totals excluding tax.
5. Check the result
- Recalculate quantities × rates and reconcile detail with summary.
- Verify source, date, unit and scope of every price.
- Expose exclusions, unknowns and unconfirmed tax treatment.
Files and advanced installation
With Claude Code already installed, run this command in your project terminal, restart Claude Code and invoke the skill with your data.
npx educasium --skill estimation-financiere-btp --global