What is senior-fullstack?

A toolkit for creating full-stack web projects, meaning applications with both a user interface and a server. It provides starter structures for Next.js, FastAPI with React, MERN, and Django with React, plus code-quality analysis.

Use it to generate project boilerplate, start Next.js or React applications, pair frontends with Python or Node.js backends, add PostgreSQL or MongoDB setups, and analyse a codebase.

It removes the need to assemble a project structure and basic setup from scratch, and helps compare code quality, security issues, and complexity when choosing or reviewing a stack.

senior-fullstack — Skill for Claude Code and Codex by ricneves-ai

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/ricneves-ai/flowgrammers-skills

agentmods

npx agentmods add skills/ricneves-ai/flowgrammers-skills/senior-fullstack

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ricneves-ai/flowgrammers-skills/senior-fullstack/github.svg)](https://agentmods.dev/skills/ricneves-ai/flowgrammers-skills/senior-fullstack)

Your own site

<a href="https://agentmods.dev/skills/ricneves-ai/flowgrammers-skills/senior-fullstack"><img src="https://agentmods.dev/badge/skills/ricneves-ai/flowgrammers-skills/senior-fullstack/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ricneves-ai/flowgrammers-skills/senior-fullstack"><img src="https://agentmods.dev/badge/skills/ricneves-ai/flowgrammers-skills/senior-fullstack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 124 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,290 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00124	$0.02290
Opus 5.5	$0.00050	$0.00916
Sonnet 5.5	$0.00025	$0.00458
Haiku 4.5	$0.00012	$0.00229

Measured 1mo ago against content hash 771c2d65a725, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

senior-fullstack 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 1mo ago.

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.

engineering-team/senior-fullstack/SKILL.md · 288 lines

How it starts

The opening of the file, as written. The whole thing — 288 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Desenvolvedor Fullstack Sênior

Skill de desenvolvimento fullstack com scaffolding de projetos e ferramentas de análise de qualidade de código.

Frases de Ativação

Use esta skill quando ouvir:

"criar scaffolding de um novo projeto"
"criar um app Next.js"
"configurar FastAPI com React"
"analisar qualidade de código"
"verificar problemas de segurança na base de código"
"qual stack devo usar"
"configurar um projeto fullstack"
"gerar boilerplate de projeto"

Ferramentas

Project Scaffolder

Gera estruturas de projeto fullstack com código boilerplate.

Templates Suportados:

nextjs - Next.js 14+ com App Router, TypeScript, Tailwind CSS
fastapi-react - Backend FastAPI + Frontend React + PostgreSQL
mern - MongoDB, Express, React, Node.js com TypeScript
django-react - Django REST Framework + Frontend React

Uso:

# Listar templates disponíveis
python scripts/project_scaffolder.py --list-templates

# Criar projeto Next.js
python scripts/project_scaffolder.py nextjs my-app

# Criar projeto FastAPI + React
python scripts/project_scaffolder.py fastapi-react my-api

# Criar projeto MERN stack
python scripts/project_scaffolder.py mern my-project

# Criar projeto Django + React
python scripts/project_scaffolder.py django-react my-app

# Especificar diretório de saída
python scripts/project_scaffolder.py nextjs my-app --output ./projects

# Saída JSON
python scripts/project_scaffolder.py nextjs my-app --json

Parâmetros:

Parâmetro	Descrição
`template`	Nome do template (nextjs, fastapi-react, mern, django-react)
`project_name`	Nome para o novo diretório do projeto
`--output, -o`	Diretório de saída (padrão: diretório atual)
`--list-templates, -l`	Listar todos os templates disponíveis
`--json`	Saída em formato JSON

Read the full file on GitHub · 288 lines

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.

1mo ago First seen · 288 lines · 124 tokens per session scan A 771c2d65a725

Subscribe to this mod's changes

senior-fullstack is a skill published in the GitHub repository ricneves-ai/flowgrammers-skills (117 stars, last pushed 1mo ago), licensed MIT. It adds 124 tokens to every session and 2,290 once invoked, about $0.0005 per session on Opus 5.5. 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 APIs Frontend React

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

subscriptions

Set up real-time event streams with async generator subscriptions using .subscription(async function() { yield }). SSE via httpSubscriptionLink is recommended over WebSocket. Use tracked(id, data) from @trpc/server for reconnection recovery with lastEventId. WebSocket via wsLink and createWSClient from @trpc/client…

trpc/trpc · 118 tokens

middlewares

Create and compose tRPC middleware with t.procedure.use(), extend context via opts.next({ ctx }), build reusable middleware with .concat() and .unstablepipe(), define base procedures like publicProcedure and authedProcedure. Access raw input with getRawInput(). Logging, timing, OTEL tracing patterns.

trpc/trpc · 63 tokens

non-json-content-types

Handle FormData, file uploads, Blob, Uint8Array, and ReadableStream inputs in tRPC mutations. Use octetInputParser from @trpc/server/http for binary data. Route non-JSON requests with splitLink and isNonJsonSerializable() from @trpc/client. FormData and binary inputs only work with mutations (POST).

trpc/trpc · 75 tokens

server-side-calls

Call tRPC procedures directly from server code using t.createCallerFactory() and router.createCaller(context) for integration testing, internal server logic, and custom API endpoints. Catch TRPCError and extract HTTP status with getHTTPStatusCodeFromError(). Error handling via onError option.

trpc/trpc · 61 tokens

service-oriented-architecture

Break a tRPC backend into multiple services with custom routing links that split on the first path segment (op.path.split('.')) to route to different backend service URLs. Define a faux gateway router that merges service routers for the AppRouter type without running them in the same process. Share procedure and…

trpc/trpc · 91 tokens