JustHandled Labs
// api

OpenAPI Contract Guard

Lint an OpenAPI spec and diff two versions to catch breaking API changes before they reach consumers.

What it flags

How to run

It analyzes JSON specs; convert YAML to JSON first (the agent can do that). Read-only.

Good to know

Heuristic structural diff. Semantic compatibility and ref-heavy specs may need a manual pass.

// choose with context

Is OpenAPI Contract Guard the right skill?

Best fit

Lints an OpenAPI spec and diffs two versions to catch breaking API changes before they reach consumers.

It returns

Lints an OpenAPI spec and diffs two versions to catch breaking API changes before they reach consumers.

Do not use it as

Do not treat a successful run as proof beyond the supplied files, declared scope, and evidence the skill actually checked.

Compatibility, access, version, and licence

Reads or accesses
Only the files or context you deliberately provide; review the listing before granting additional access.
Compatibility
Agents that read the open SKILL.md format. Verify runtime and service requirements at the purchase or install destination.
Version
Verify the current package version at the linked destination.
Licence
Review the package licence and seller terms at the linked destination.

What happens next

The Agensi listing opens at the current offer. Complete purchase there, inspect SKILL.md and its bundled files, then add the complete folder to your agent.

Questions

What is the wedge?

Version-to-version breaking-change detection, the thing that pages a team when consumers break.

Does it change anything?

No. It is read-only and flags issues for you to act on.

Break nothing your consumers depend on.

Current price and purchase option are shown on Agensi. Instant download. Works with any agent that reads SKILL.md.

Get OpenAPI Contract Guard on Agensi