Backend and APIs

31,174 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

tools

25

run-llama/llama_index

Agent

Having proper tool abstractions is at the core of building agentic systems in LlamaIndex. Defining a set of Tools is similar to defining any API interface, with the exception that these Tools are meant for agent rather than human use. We allow users to define both a Tool as well as a ToolSpec containing a series of…

not rated 52k today A 0 tokens original MIT

router-for-me/CLIProxyAPI

Instructions file

Claude Code instructions for router-for-me/CLIProxyAPI, a project described as: Wrap Antigravity, ChatGPT Codex, Claude Code, Grok Build as an OpenAI/Gemini/Claude/Codex compatible API service, allowing you to enjoy the free Gemini 3.1 Pro, GPT 5.6 Series, Grok 4.5, Claude model through API.

not rated 50k +396 2d ago A 4 tokens copy · 100% MIT

metabase/metabase

Agent Claude Code

Use this agent for Metabase Clojure backend work on enterprise platform features — serialization (export/import), audit logging, SCIM provisioning, multi-tenancy, database routing, dependency tracking, remote sync, premium features infrastructure, content translation, stale content detection, or support access grants.…

not rated 49k +37 today A 442 tokens

mbql-backend-expert

28

metabase/metabase

Agent Claude Code

Use this agent for Metabase Clojure backend work on query processor (QP), MBQL query language, SQL compilation, driver system, middleware pipeline, Lib, metadata providers, or streaming execution. This includes debugging query compilation issues, adding new MBQL clauses, fixing database-specific SQL generation bugs…

not rated 49k +37 today A 701 tokens

metabase/metabase

Agent Claude Code

Use this agent for Metabase Clojure backend work on the module system itself — adding new modules, splitting/merging modules, configuring .clj-kondo/config/modules/config.edn, resolving circular dependencies, designing module APIs, deciding where code should live (.core vs .api vs .init vs .models.), interpreting…

not rated 49k +37 changed today A 922 tokens

autobot

30

metabase/metabase

Command Claude Code

Launch a bot command in an isolated autobot session with its own worktree, backend, and frontend.

not rated 49k +37 today A 0 tokens

eventa

31

moeru-ai/airi

Skill Claude CodeCodex

Guide for using @moeru/eventa — a transport-aware event library powering ergonomic RPC and streaming flows. Use this skill whenever the user imports from '@moeru/eventa', mentions eventa, needs cross-process/cross-thread event communication (Electron IPC, Web Workers, WebSocket, BroadcastChannel, EventEmitter…

not rated 49k +102 2d ago A 126 tokens original MIT

streamlit/streamlit

Skill Claude CodeCodex

Explains Streamlit's internal architecture including backend runtime, frontend rendering, and WebSocket communication. Use when debugging cross-layer issues, understanding how features work end-to-end, planning architectural changes, or onboarding to the codebase. Covers ForwardMsg/BackMsg protocol, script rerun…

not rated 46k +15 changed today A 75 tokens original Apache-2.0

payload AGENTS.md

33

payloadcms/payload

Instructions file CodexOpenCode

AGENTS.md instructions for payloadcms/payload, a project described as: Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.

not rated 45k today A 12 tokens original MIT

payload

34

payloadcms/payload

Skill Claude CodeCodex

Use when working with Payload projects (payload.config.ts, collections, fields, hooks, access control, Payload API). Use when debugging validation errors, security issues, relationship queries, transactions, or hook behavior.

not rated 45k today A 43 tokens original MIT

links

35

trpc/trpc

Skill Claude CodeCodex

Configure the tRPC client link chain: httpLink, httpBatchLink, httpBatchStreamLink, splitLink, loggerLink, wsLink, createWSClient, httpSubscriptionLink, unstablelocalLink, retryLink. Choose the right terminating link. Route subscriptions via splitLink. Build custom links for SOA routing. Link options: url, headers…

not rated 41k +9 3d ago A 90 tokens original MIT

nextjs-app-router

36

trpc/trpc

Skill Claude CodeCodex

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.

not rated 41k +9 3d ago A 74 tokens original MIT

nextjs-pages-router

37

trpc/trpc

Skill Claude CodeCodex

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.

not rated 41k +9 3d ago A 67 tokens original MIT

sub2api-admin

38

Wei-Shaw/sub2api

Skill Claude CodeCodex

Manage Sub2API admin APIs for accounts, redeem codes, groups, proxies, error passthrough rules, TLS fingerprint profiles, imports, exports, batch updates, and raw administrator API calls. Use when the user mentions Sub2API, admin API keys, account management, redeem code management, recharge codes, invitation codes…

not rated 40k +213 2d ago A 101 tokens LGPL-3.0

novuhq/novu

Cursor rule Cursor

Fix ApiProperty/ApiPropertyOptional optionality mismatches in DTO files; use for scheduled batch fixes or DTO edits.

not rated 40k +9 today A 0 tokens

api

40

novuhq/novu

Cursor rule Cursor

Rules for working in the API service (NestJS backend).

not rated 40k +9 today A 0 tokens

PostHog/posthog

Skill Claude CodeCodex

Implement and extend PostHog Data warehouse import sources. Use when adding a new source under products/warehousesources/backend/temporal/dataimports/sources, adding datasets/endpoints to an existing source, or adding incremental sync, resumable imports, webhook ingestion, pagination, credentials validation, and…

not rated 40k +27 changed today A 69 tokens

PostHog/posthog

Skill Claude CodeCodex

Plan and execute product isolation migrations to a facade plus contract layer in PostHog, following the Visual review architecture. Use when a product still exposes internals (models/logic/views) across boundaries and needs migration toward contracts.py + facade/api.py + presentation separation, with a PR strategy…

not rated 40k +27 changed 2d ago A 76 tokens

freehire-search

43

MadsLorentzen/ai-job-search

Skill Claude CodeCodex

Use this skill to search live software / tech / data / engineering job listings across many countries and markets (and remote) via the freehire.me aggregator's public API, or to look up a specific posting. It aggregates roles from 50 ATS platforms into one schema, so a single skill covers many markets — but its…

not rated 41k +967 today A 143 tokens original MIT

binarywang/WxJava

Skill Claude CodeCodex

A contributor guide for adding or maintaining official WeChat API support in WxJava, a Java software development kit. It covers services, request and response data objects, data conversion, HTTP handling, starter configuration, and regression tests.

not rated 33k +6 2d ago A 68 tokens original Apache-2.0

binarywang/WxJava

Skill Claude CodeCodex

A decision guide for choosing the correct WxJava Maven module, dependency management file, and example for a WeChat use case. WxJava is a Java software development kit for services such as official accounts, mini programs, and payments.

not rated 33k +6 2d ago A 86 tokens original Apache-2.0

zeroclaw

47

zeroclaw-labs/zeroclaw

Skill Claude CodeCodex

Help users operate and interact with their ZeroClaw agent instance — through both the CLI (zeroclaw commands) and the REST/WebSocket gateway API. Use this skill whenever the user wants to: send messages to ZeroClaw, manage memory or cron jobs, check system status, configure channels or providers, hit the gateway API…

not rated 33k +26 today A 167 tokens original Apache-2.0

cockroachdb/cockroach

Agent Claude Code ✓ vendor

Reviews CockroachDB code changes for metric hygiene: static label opportunities, naming conventions, and correct use of the labeling API. Use when a diff adds or modifies metric.Metadata definitions.

not rated 32k +4 yesterday A 43 tokens

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