skills.rest
ferrarif1
ferrarif1COMMUNITY
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backend-contract-guard

Validate backend APIs, data models, and workflows against documented contracts.

Updated Aug 27, 2026
Search Tags:#backend#rbac#quality-assurance#api-validation#contracts#data-models
One-click install
npx skills add https://github.com/ferrarif1/Vistral --skill backend-contract-guard
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: backend-contract-guard
Source: https://github.com/ferrarif1/Vistral/tree/main/.agents/skills/backend-contract-guard
Command: npx skills add https://github.com/ferrarif1/Vistral --skill backend-contract-guard

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Align backend implementations with documented product contracts, data models, and workflow rules to prevent drift and inconsistent behavior across services.

Core Features & Use Cases

  • API Contract Compliance: Verify all endpoints match the documented API specification; validate request/response formats and structures; check proper HTTP status code usage; confirm authentication and authorization implementation; test error response formats and codes.
  • Data Model Implementation: Ensure database schemas match documented data models; validate foreign key relationships and constraints; check proper indexing for performance requirements; verify data validation and sanitization; confirm audit logging implementation.
  • Business Logic Enforcement: Validate two-role access model with ownership/capability permissions; check model lifecycle workflows; verify approval process implementation; confirm edge deployment capabilities; test multi-step process state management.
  • File Handling Systems: Validate secure file upload and storage; check proper status tracking for uploads; verify file attachment integration with conversations; test file cleanup and retention policies; confirm virus scanning and security measures.

Quick Start

Run the backend-contract-guard validation to ensure APIs, data models, and workflows match the documented contracts.

Frequently Asked Questions about backend-contract-guard

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I prevent API contract drift between REST endpoints and database schemas?▼

API contract drift is prevented by validating endpoint request/response formats, HTTP status codes, and database schemas against documented models to ensure interface compliance and data integrity.

What is the best way to enforce two-role access control and ownership in backend workflows?▼

Two-role access control is enforced by validating ownership and capability permissions within model lifecycle workflows, confirming approval processes, and testing multi-step state management to prevent unauthorized state transitions.

How do I validate secure file upload handling and retention policies in backend APIs?▼

Secure file upload handling is validated by checking storage integration, status tracking, file cleanup retention policies, and virus scanning measures to guard against unsafe file operations.

Does this backend contract validation check foreign key constraints and database indexing?▼

Database foreign key relationships, constraints, and performance indexing are checked to ensure schemas match documented data models, alongside verifying data sanitization and audit logging implementation.

Why does my backend API implementation return inconsistent error response formats?▼

Inconsistent error response formats occur when implementations drift from documented API contracts, requiring validation of error response codes, authentication implementation, and proper HTTP status code usage to ensure compliance.

Can I use this to test multi-step process state management and edge deployment capabilities?▼

Multi-step process state management and edge deployment capabilities are tested by verifying business logic enforcement, checking model lifecycle workflows, and confirming approval process implementation within two-role environments.

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