hydration-guardian

Installation
SKILL.md

Hydration Guardian

Overview

Ensures zero-mismatch integrity between server-rendered HTML and client-side React trees. Covers hydration error diagnosis, selective hydration via Suspense boundaries, deterministic data bridges with the React 19 use() hook, 'use cache' for eliminating data drift, two-pass rendering for client-only content, React 19's single-diff hydration error reporting for pinpointing exact mismatches, and automated validation of rendered DOM state.

When to use: Debugging hydration mismatch errors, fixing text content mismatches, handling browser extension DOM pollution, implementing deterministic data bridges, optimizing SSR/client hydration performance, setting up error monitoring with onRecoverableError.

When NOT to use: Client-only React applications without SSR, static sites without hydration, API-only backends.

Quick Reference

Installs
74
GitHub Stars
12
First Seen
Feb 20, 2026
hydration-guardian — oakoss/agent-skills