What are proof_obligation constraints?

These are specific business rules marked in the specification as requiring formal mathematical verification, typically using Lean proofs, to ensure correctness by construction.

How does the skill handle constraints that cannot be proven?

If a constraint cannot be proven statically, the skill flags it as a 'sorry' in the report and creates a plan for alternative verification, such as runtime checks or integration tests.

Can this skill generate code for my application?

Yes, it generates suggested code for runtime validations, constructor-level enforcement, and database migration constraints (like UNIQUE constraints).

What is the primary output of this skill?

The primary output is a detailed constraints-report.yaml file that provides a status summary, coverage percentages, and specific evidence for every business rule defined in your spec.

Engineering Constraint Verification

Name: Engineering Constraint Verification
Author: BellaBe

byBellaBe

0•

Security & Testing

Verifies business constraints and invariants by generating formal proofs or planning runtime validation checks.

The Engineering Verify Constraints skill automates the process of ensuring software specifications align with implementation by analyzing business rules and invariants. It distinguishes between formal proofs using the Lean theorem prover and dynamic runtime checks, generating a comprehensive status report that tracks proven, unverified, and database-enforced constraints. This skill is essential for high-integrity systems where maintaining strict business logic and data consistency is critical throughout the development lifecycle, providing a structured way to manage proof obligations and validation logic.

Key Features

01Automated Lean proof generation for static invariants

02Detailed YAML report generation for constraint coverage and status

03Detection and documentation of unproven 'sorry' obligations

04Categorization of constraints into proven, runtime, and database-enforced

05Strategic planning for dynamic runtime validation checks

060 GitHub stars

Use Cases

01Ensuring complex business rules are strictly enforced in high-stakes applications

02Formal verification of data invariants and preconditions in mission-critical software

03Planning and generating runtime validation logic for API and database schemas

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bellabe/ideas-os engineering-verify-constraints

For use in Claude.ai and ChatGPT

Download Skill