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review-upgrade-compatibility-and-test-determinism

Identify compatibility and test determinism risks in behavior-changing pull requests.

Updated Mar 3, 2026
Search Tags:#pr review#compatibility check#migration safety#api compatibility#upgrade safety#test determinism
One-click install
npx skills add https://github.com/D3Hunter/ai-engineer --skill review-upgrade-compatibility-and-test-determinism
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: review-upgrade-compatibility-and-test-determinism
Source: https://github.com/D3Hunter/ai-engineer/tree/main/skills/review-upgrade-compatibility-and-test-determinism
Command: npx skills add https://github.com/D3Hunter/ai-engineer --skill review-upgrade-compatibility-and-test-determinism

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill eliminates the risk of production outages, data corruption, and flaky test suites caused by unvetted compatibility gaps and test determinism issues in behavior-changing pull requests, ensuring safe rolling upgrades and rollbacks for services and distributed systems.

Core Features & Use Cases

  • Compatibility Surface Scoping: Automatically identifies changed API contracts, protocol payloads, storage formats, config keys, migration scripts, and release docs that impact compatibility.
  • Full Checklist Validation: Runs a comprehensive pass of compatibility and test determinism checks, including backward/forward compatibility, migration safety, mixed-version cluster behavior, and deterministic test design.
  • Severity-Graded Findings: Assigns clear severity levels (Blocker, Major, Minor, Info) to each identified risk with concrete evidence and change requests, then hands off to the standardized output formatting skill.
  • Use Case: Engineering teams shipping services with rolling upgrade requirements can use this Skill to review PRs that modify APIs, schemas, or migration logic to catch high-risk compatibility gaps and flaky test patterns before they reach production.

Quick Start

Use this skill to review the provided pull request diff for the user service schema changes to identify backward compatibility gaps and non-deterministic test patterns prior to merge.

Frequently Asked Questions about review-upgrade-compatibility-and-test-determinism

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

FAQPage Schema
How do I check API backward compatibility before merging a pull request?▼

To check API backward compatibility before merging, review the pull request diff to identify changed API contracts, schema formats, and protocol payloads. Static analysis validates forward and backward compatibility gaps without executing build or test commands.

What is test determinism in behavior-changing pull requests?▼

Test determinism ensures tests produce consistent results across runs by identifying flaky patterns in behavior-changing pull requests. Static analysis detects non-deterministic test designs and coverage gaps before merge to prevent flaky test suites.

How do I verify migration safety for distributed systems requiring rolling upgrades?▼

Migration safety for rolling upgrades is verified by analyzing migration scripts and mixed-version cluster behavior in the pull request diff. Static analysis identifies data corruption risks and rollback safety gaps without running build commands.

Can I review schema changes for forward compatibility without running tests?▼

You can review schema changes for forward compatibility without running tests by applying static analysis to the pull request diff. This identifies storage format and config key changes that impact compatibility across mixed-version clusters.

What are the limitations of static-analysis-first PR review for compatibility risks?▼

Static-analysis-first PR review limitations include inability to catch runtime-specific compatibility issues or dynamic protocol behaviors since it validates only code-level patterns without executing build or test commands.

How do I scope compatibility surfaces when modifying APIs and migration logic?▼

Scope compatibility surfaces by identifying changed API contracts, protocol payloads, storage formats, config keys, migration scripts, and release docs in the pull request diff. This determines what impacts backward and forward compatibility.

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