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code-check-contracts

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Catch API and DTO drift before it breaks

Software Engineering#typescript#zod#code audit#contract testing#api drift#db schema#route params
Authorwebdevcody
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill prevents runtime bugs caused by producer/consumer contract drift, such as renamed fields, changed route params/search params, or mismatched DTO/Zod/DB shapes that TypeScript can’t fully guarantee across boundaries.

Core Features & Use Cases

  • Audits client/server contract drift across server functions, route handlers, tRPC procedures, Zod/DTO definitions, DB schemas, and route param/search definitions.
  • Ranks findings by severity and distinguishes safe mechanical renames from structural changes that require domain review.
  • Finds and updates call sites for mechanical renames (while never auto-fixing removals or semantic changes).
  • Reports full evidence by pointing to producer and consumer locations (including the differing field names) so reviewers can verify quickly.

Quick Start

Run the contract scan after any change that crosses the client/server boundary by triggering it with the instruction: "check contracts for drift in the current diff".

Dependency Matrix

Required Modules

None required

Components

Standard package

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: code-check-contracts
Download link: https://github.com/webdevcody/go-mailing-list/archive/main.zip#code-check-contracts

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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