Your agent invents things because it has no memory, and can't touch your database because it has no arms. rsc is the meta-harness that gives it both, plus the trade to know the job and the reflexes to not break your repo. For Claude Code, Codex and 15 more.
Skill Claude CodeCodex
Use when deploying an app to Railway — pushing a repo or running railway up, provisioning a managed database, wiring env and reference variables across services, attaching a volume, or fixing a deploy that builds but will not serve. NOT Render (that is render), NOT Fly machines (that is fly-io), NOT a self-hosted PaaS…
Skill Claude CodeCodex
Use when writing the JS/TS inside a React Native or Expo app — screens, Expo Router navigation, lists, Reanimated gestures, platform forks, offline state, native modules — or killing jank and render storms. NOT eas build/submit/OTA/config-plugin (that is expo), NOT a Dart app (that is flutter), NOT web React/DOM (that…
Skill Claude CodeCodex needs its repo
Use when building or reviewing a client-side React SPA bundled by Vite (React 19.2): components, where state lives, hooks, server data fetching, client routing, re-render and effect bugs. NOT App Router / server components / SSR (that is nextjs); NOT native screens (that is react-native).
Skill Claude CodeCodex
Use when using Redis or any Redis-protocol store (Valkey, ElastiCache, Upstash, Dragonfly, Memorystore) as a cache, queue, rate limiter or distributed lock and it has to be CORRECT rather than merely connected — stampede-proof caching, locks that cannot release someone else's hold, race-free rate limits, and jobs that…
Skill Claude CodeCodex
Use when you need to render an actual video file with Remotion — React compositions, the Composition/Sequence/TransitionSeries graph, transitions, burned-in word-by-word captions from a transcript, automatic silence removal, b-roll overlays, headless CI renders, and a final MP4 or MOV. NOT writing the script, hook…
Skill Claude CodeCodex
Use when deploying or fixing an app on Render — web services, background workers, cron jobs, private services, managed Postgres and Key-Value, and especially the render.yaml Blueprint. Covers deploys that fail with no open ports detected, 502s on first deploy, free-tier cold starts, and a free Postgres about to expire…
Skill Claude CodeCodex
Use when generating or editing images through the Replicate API, or when a modern image model keeps ignoring the prompt — choosing aspect ratio, resolution, seed and output format, image-to-image, multi-reference composition, text-driven inpainting, readable text inside a generated image, and structuring prompts per…
Skill Claude CodeCodex
Use when running, packaging, deploying or scaling a model on the Replicate platform from code — blocking run versus async predictions, handling FileOutput, deployments with warm private endpoints and autoscaling, packaging with Cog, verifying webhook signatures, and cutting GPU spend. NOT crafting image prompts and…
Skill Claude CodeCodex
Use when a recurring report must ship itself on a cadence — weekly digest, monthly exec pack, board pack — via a fetch→narrate→render→deliver pipeline with a schedule and a freshness gate. NOT a live view people slice (that is dashboard), NOT picking which KPIs to track (that is kpi-framework), NOT a one-off…
Skill Claude CodeCodex
Use when someone hands you an open question whose answer must survive scrutiny — a tech choice, a regulation, a what-is-actually-true-about-X — with every non-obvious claim dated and sourced, source disagreements surfaced rather than averaged away, and a cited memo as the deliverable. Also for refreshing a stale…
Skill Claude CodeCodex
Use when revenue is leaking out the bottom of the funnel and you need a program to keep, score and win back customers — a customer health score, NPS, catching churn signals before renewal, a cancellation save flow, or a win-back sequence, and reading GRR against NRR. NOT working a single live churn-risk ticket in the…
Skill Claude CodeCodex
Use when a public review needs an on-voice reply, when you need to earn more reviews legally, or when an aggregate rating is slipping across Google Business Profile, Trustpilot, the App Store or Google Play — including deciding reply versus flag, getting an unfair one-star removed rather than merely answered, and…
Skill Claude CodeCodex
Use when a green diff needs adversarial judgment in the rsc SDD chain, between verify and ship — give a review keyed to the spec/plan/constitution in 02-DOCS/wiki/sdd/, or receive one and verify each comment before agreeing. NOT running lint/type/tests (that is verify), NOT the spec-less standalone pass (that is…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: