data-client-performance

95 / 100 · Low risk

Fine to try.

By reactive/data-client (GitHub) · coding · 2,041 stars · scanned at commit 030e750

Find and make the speedups a React app on @data-client/react may be missing - detail pages from list data, one Entity per server object, lists updated in place, reads that skip fresh data, loaders that don't wait for secondary data, prefetching, expiry, optimistic updates, Query memoization, parallel reads, transitions, stable references and React Compiler. Use for the optional performance pass after a migration, or when asked to make data loading, navigation or mutations faster.

Works with any agent that supports SKILL.md skills.

What this skill can do

Connects to the internet

The author does not mention this.

Found in 7 places.

.agents/skills/data-client-performance/evals/evals.json, line 8"prompt": "Do a performance pass on our discussion page. It already uses Data Client (@data-client/react 0.19, @data-client/rest) on React 19.2. There is no bro
.agents/skills/data-client-performance/evals/evals.json, line 12"The loader starts the comments fetch (`CommentResource.getList` or a Query-extended variant of it) with `fetchIfStale` without awaiting it, not inside an await
.agents/skills/data-client-performance/evals/evals.json, line 42"prompt": "Run a performance pass on our issues pages. We use @data-client/react 0.19 and @data-client/rest on React 19.2. No browser here, so skip live measure

Show 4 more

.agents/skills/data-client-performance/evals/evals.json, line 73"prompt": "Do a performance pass on the issues page, but nothing optimistic: our server rewrites titles. Also turn on React Compiler. We use @data-client/react
.agents/skills/data-client-performance/references/performance-pass.md, line 67- **Find:** `useEffect()` that fetches; `ctrl.fetch()` of a read endpoint in route loaders or prefetch handlers.
.agents/skills/data-client-performance/references/performance-pass.md, line 69run, such as route loaders and prefetch on hover, calls `ctrl.fetchIfStale()`. `ctrl.fetch()` always requests, even
.agents/skills/data-client-performance/references/performance-pass.md, line 159- **Find:** `ctrl.fetch()` of updates, deletes and creates whose response the client can predict from the body and

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'data-client-performance' ] || [ -L ~/.agents/skills/'data-client-performance' ]; then echo 'A skill folder named data-client-performance already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/reactive/data-client' "$d" && git -C "$d" checkout --quiet '030e7507ec1d0dd339a0b2aac7a2a00120caf187' -- '.agents/skills/data-client-performance' && mkdir -p ~/.agents/skills && cp -R "$d"/'.agents/skills/data-client-performance' ~/.agents/skills/'data-client-performance' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'data-client-performance' ~/.claude/skills/'data-client-performance' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-12	`030e750`	95