How do I install the validating-api-contracts Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/contract-test-validator/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

ClaudSkills / Engineering / testing

validating-api-contracts

Category: Engineering · Sub-category: testing · Last updated: 2026-05-21

This skill validates API contracts using consumer-driven testing and OpenAPI validation. It leverages Pact for consumer-driven contract testing, ensuring that API providers adhere to the expectations of their consumers. It also validates APIs against OpenAPI specifications to guarantee compliance and identify breaking changes. Use this skill when the user asks to generate contract tests, validate API responses, check backward compatibility, or validate requests/responses using the terms "contract-test", "ct", "Pact", "OpenAPI validation", or "consumer-driven contract testing".

What this skill does

validating-api-contracts is a community-contributed Claude Code skill in the testing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/contract-test-validator/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The validating-api-contracts Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/contract-test-validator
curl -L https://claudskills.com/skills/contract-test-validator/SKILL.md \
  -o ~/.claude/skills/contract-test-validator/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/contract-test-validator/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/contract-test-validator/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\contract-test-validator\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

Source: https://github.com/jeremylongshore/claude-code-plugins-plus-skills/blob/HEAD/backups/skill-structure-cleanup-20251108-073936/plugins/testing/contract-test-validator/skills/contract-test-validator/SKILL.md
License: MIT
Author: jeremylongshore
Website: https://tonsofskills.com

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validating-api-contracts

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

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