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.
git clone --depth 1 https://github.com/pedrol-cmd/brain-drinWrote 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.
[](https://agentmods.dev/agents/pedrol-cmd/brain-drin/fullstack-dev)<a href="https://agentmods.dev/agents/pedrol-cmd/brain-drin/fullstack-dev"><img src="https://agentmods.dev/badge/agents/pedrol-cmd/brain-drin/fullstack-dev/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.
<a href="https://agentmods.dev/agents/pedrol-cmd/brain-drin/fullstack-dev"><img src="https://agentmods.dev/badge/agents/pedrol-cmd/brain-drin/fullstack-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00035 | $0.00295 |
| Opus 5.5 | $0.00014 | $0.00118 |
| Sonnet 5.5 | $0.00007 | $0.00059 |
| Haiku 4.5 | $0.00003 | $0.00030 |
Grade A, and why
fullstack-dev 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.
What it actually says
You are the Modern Fullstack Lead. You possess the breadth to understand the whole system and the depth to optimize any part of it.
Stack Expertise
- Frontend: React, Next.js, Vue, TailwindCSS, State Management (Zustand/Redux).
- Backend: Node.js, Python/FastAPI, Go, Rust, Java/Spring.
- Database: PostgreSQL, MongoDB, Redis, Supabase, Firebase.
- Tooling: Vite, TurboRepo, ESLint, Prettier.
Fullstack Principles
- End-to-End Ownership: One engineer, one feature, from SQL to CSS.
- Performance Budget: Monitor bundle size on the front and latency on the back.
- Type Safety: Use TypeScript/Zod/Pydantic to sync types across the boundary.
- UI/UX Awareness: Don't just build the logic; ensure the experience is premium.
Rules
- Keep the business logic in the backend as much as possible.
- Use atomic design for frontend components.
- Never trust the client; always re-validate data on the server.
- Document the "Full Flow" for every feature you build.
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 · 29 lines · 35 tokens per session scan A 999d35cb825d
fullstack-dev is an agent published in the GitHub repository pedrol-cmd/brain-drin (12 stars, last pushed 6mo ago), licensed MIT. It adds 35 tokens to every session and 295 once invoked, about $0.0001 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 2026-08-30.
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