agentmods.dev

react-fetch-cache-patterns

react-fetch-cache-patterns is a skill for Claude Code, Codex from pproenca/dot-skills. It costs 189 tokens per session (2,791 once invoked), scanned A, original, MIT.

A guide to fetching and caching data in React applications, especially pages that make many API requests. It covers request timing, deduplication, retries, caching, and limits on simultaneous work.

In plain words
What is it for?
Use it for feeds, carousels, dashboards, parallel requests, prefetching, optimistic updates, and data-fetching hooks.
Why use it?
It helps prevent slow request waterfalls, overloaded backends, duplicate requests, and unreliable loading states.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

not rated 205repo +4 24d ago A scan SkillSpector: pass 189 tokens original MIT

Good fit Use it for feeds, carousels, dashboards, parallel requests, prefetching, optimistic updates, and data-fetching hooks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pproenca/dot-skills/react-fetch-cache-patterns
View source ↗ pproenca/dot-skills
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add pproenca/dot-skills --skill react-fetch-cache-patterns
Clone the repo
git clone --depth 1 https://github.com/pproenca/dot-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for react-fetch-cache-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/pproenca/dot-skills/react-fetch-cache-patterns/github.svg)](https://agentmods.dev/skills/pproenca/dot-skills/react-fetch-cache-patterns)
Your own site
<a href="https://agentmods.dev/skills/pproenca/dot-skills/react-fetch-cache-patterns"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/react-fetch-cache-patterns/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for react-fetch-cache-patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/pproenca/dot-skills/react-fetch-cache-patterns"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/react-fetch-cache-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 189 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,791 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00189 $0.02791
Opus 5 $0.00095 $0.01396
Sonnet 5 $0.00038 $0.00558
Haiku 4.5 $0.00019 $0.00279

Measured 5d ago against content hash b0c47da8b12c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

react-fetch-cache-patterns scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (assets/templates/request-collapser.template.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/.experimental/react-fetch-cache-patterns/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Experimental React Data Fetching & Caching Best Practices

Implementation patterns for React applications that fetch and cache many API requests without overwhelming the backend. 48 rules across 8 categories, ordered by execution lifecycle impact — earlier categories cascade through everything downstream. Templates show both library-based (TanStack Query, SWR) and library-free (pure React + AbortController) implementations so the patterns are usable regardless of stack constraints.

When to Apply

  • Writing or reviewing a React component that calls fetch, useQuery, useSWR, or any data-fetching hook
  • Designing a list, feed, or carousel that displays many items each requiring data
  • Investigating "the backend is getting hammered" or "the page loads slowly" symptoms
  • Choosing between client-side fetching, route loaders, server components, or SSR
  • Implementing prefetch, retry, optimistic updates, or any failure-handling logic
  • Refactoring code that already does data fetching but with waterfalls, no cache strategy, or no concurrency limits

Rule Categories by Priority

# Category Impact Prefix Rules
1 Request Orchestration CRITICAL orch- 7
2 Cache Strategy CRITICAL cache- 7
3 Backend Protection CRITICAL protect- 7
4 Prefetch & Hydration HIGH prefetch- 6
5 Failure Resilience HIGH resilience- 6
6 Feed & Carousel Patterns MEDIUM-HIGH feed- 7
7 Mutation & Invalidation MEDIUM mutate- 4
8 Component Patterns MEDIUM render- 4

Quick Reference

1. Request Orchestration (CRITICAL)

Read the full file on GitHub · 140 lines

Files

What ships with it

58 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 140 lines · 189 tokens per session scan A b0c47da8b12c

Subscribe to this mod's changes

react-fetch-cache-patterns is a skill published in the GitHub repository pproenca/dot-skills (205 stars, last pushed 24d ago), licensed MIT. It adds 189 tokens to every session and 2,791 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Backend and APIsFrontendReact
Related

Other skills, from other repositories

copilotkit-upgrade

Use when migrating a CopilotKit v1 application to v2 -- updating package imports, replacing deprecated hooks and components, switching from GraphQL runtime to AG-UI protocol runtime, and resolving breaking API changes.

CopilotKit/CopilotKit · 48 tokens

nextjs-app-router

Full end-to-end tRPC setup for Next.js App Router. Covers route handler with fetchRequestHandler (GET + POST exports), TRPCProvider with QueryClientProvider, createTRPCOptionsProxy for RSC prefetching, HydrateClient/HydrationBoundary for hydration, useSuspenseQuery for Suspense, and server-side callers.

trpc/trpc · 74 tokens

nextjs-pages-router

Set up tRPC in Next.js Pages Router with createNextApiHandler, createTRPCNext, withTRPC HOC, SSR via ssr option and ssrPrepass, SSG via createServerSideHelpers with getStaticProps, and server-side helpers for getServerSideProps prefetching.

trpc/trpc · 67 tokens

langbot-dev

Develop, build, and debug the LangBot core backend and web frontend. Use when working inside the LangBot repository — backend (Python/Quart, src/langbot/pkg), the Vite/React web UI, HTTP API controllers/services, Alembic migrations, or the MCP server. Covers the dev environment (uv, pnpm), repo layout, the API auth…

langbot-app/LangBot · 136 tokens

trigger-realtime-and-frontend

Trigger.dev client/frontend surface: subscribe to runs in realtime (runs.subscribeToRun and the @trigger.dev/react-hooks hook useRealtimeRun), consume metadata and AI/text streams in React (useRealtimeStream), trigger tasks from the browser (useTaskTrigger, useRealtimeTaskTrigger), and mint scoped frontend credentials…

triggerdotdev/trigger.dev · 148 tokens

sanity-live-cache-components

Integrates Sanity Live with Next.js Cache Components in next-sanity v13+ apps. Sets up sanityFetch, a shared cachedSanity 'use cache' boundary, , Visual Editing, Presentation Tool, draft mode handling, and the three-layer (Page/Dynamic/Cached) component pattern with explicit perspective/stega prop-drilling. Sequences…

sanity-io/next-sanity · 155 tokens