rapid-proto

rapid-proto is an agent for Claude Code from elihuvillaraus/skills. It costs 72 tokens per session (195 once invoked), scanned A, original, no licence file.

An agent that quickly builds a working early version of a software idea. A prototype is an unfinished version used to test whether an idea works.

In plain words
What is it for?
Creating proof-of-concepts, minimum viable products, quick features, and validation prototypes.
Why use it?
It helps you learn from a real working version before spending time polishing the final product.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Creating proof-of-concepts, minimum viable products, quick features, and validation prototypes.

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Install with agentmods
npx agentmods add agents/elihuvillaraus/skills/rapid-proto
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.

Clone the repo
git clone --depth 1 https://github.com/elihuvillaraus/skills

Made for: Claude Code.

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 rapid-proto

README.md
[![agentmods](https://agentmods.dev/badge/agents/elihuvillaraus/skills/rapid-proto/github.svg)](https://agentmods.dev/agents/elihuvillaraus/skills/rapid-proto)
Your own site
<a href="https://agentmods.dev/agents/elihuvillaraus/skills/rapid-proto"><img src="https://agentmods.dev/badge/agents/elihuvillaraus/skills/rapid-proto/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 rapid-proto

Your own site · 80×15
<a href="https://agentmods.dev/agents/elihuvillaraus/skills/rapid-proto"><img src="https://agentmods.dev/badge/agents/elihuvillaraus/skills/rapid-proto.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 195 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 unknown 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 $0.00072 $0.00195
Opus 5 $0.00036 $0.00097
Sonnet 5 $0.00014 $0.00039
Haiku 4.5 $0.00007 $0.00019

Measured 10d ago against content hash d0932f068906, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

rapid-proto 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 10d 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.

agents/rapid-proto.agent.md · 17 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 10d ago First seen · 17 lines · 72 tokens per session scan A d0932f068906

Subscribe to this mod's changes

rapid-proto is an agent published in the GitHub repository elihuvillaraus/skills (3 stars, last pushed 3d ago), with no licence file. It adds 72 tokens to every session and 195 once invoked, about $0.0004 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 2026-08-31.