What does this skill do?

The Express Skill Contract Amendment generates complete, sign-ready contract amendments that formalize any changes to an existing contract. Based on the original contract details and a description of the change, it produces a formal amendment with detailed clauses, a professional message for the client, and a pre-signing checklist.

Expansion of Scope
This document formalizes additional services requested by the client that exceed the originally agreed-upon scope, setting forth the price and timeline in a single document.
Extension of Deadline
Document a previously agreed-upon verbal extension of the deadline, specifying the new effective date and delivery date.
Value Adjustment
Reflects changes to the contract due to new costs or services, specifying the previous and new amounts.
Parts Replacement
Records the replacement of one of the contracting parties due to a sale of the business, a partner's departure, or a contract assignment.

Usage examples

📋 Scope Expansion
The client requests that an NDA be included in the partnership agreement. Create the addendum by modifying the scope, amount (from €500 to €650), and deadline (from 5 to 8 days).
⏳ Extension of the deadline
I need an addendum to extend the delivery deadline for Contract No. 001/2025 by 15 business days due to technical delays agreed upon with the client.
💰 Price adjustment
Create an addendum that adjusts the contract value from €1,200 to €1,500 to account for the inclusion of additional maintenance services.
👥 Change of contractor
Prepare an addendum formalizing the change of contractor by transferring the contract to a new company, while maintaining the rest of the terms.

Features

Complete Formal Annex Generates a document that includes the original contract number, the parties involved, detailed amendment clauses, and spaces for signatures.
Message to the Customer Create a brief, professional message ready to send via email or WhatsApp explaining the attachment and requesting a signature.
Checklist It includes a checklist of key points to review before signing: party information, date validity, amount, and acceptance format.
Only change what has changed The addendum supplements the original contract without rewriting it: it states that the remaining clauses remain unchanged.
Reference to the original contract Each annex identifies the number, purpose, and parties to the master contract to ensure legal traceability.

Frequently asked questions

No. The addendum supplements the original contract and explicitly refers to it. Only the clauses that have been changed are modified; the rest remain unchanged.
You need the original contract reference number, the parties involved, the original subject matter, and an exact description of the change (scope, timeline, value, or parties), as well as the reason for the change and its effective date.
The annex is drafted in a formal legal style, but its final validity depends on the signatures of all parties and the laws applicable in your jurisdiction.
Yes. The skill is designed for service agreements, but the addendum format can be used for any existing agreement that requires a formal amendment.
Express Contractual Addendum — Contract Amendments with Claude AI

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