single-prototype

single-prototype is a skill for Claude Code from Pawel-Kica/claude-code-100. It costs 25 tokens per session (108 once invoked), scanned A, original, no licence file.

A single throwaway HTML prototype of a planned product, with no alternative versions. It is meant to be shown when you ask, “show me it.”

In plain words
What is it for?
It helps turn a product idea into one simple web page for early feedback.
Why use it?
It gives you a quick, concrete page to inspect instead of discussing an idea only in words. Because it is throwaway, it does not imply that the prototype is production code.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Good fit It helps turn a product idea into one simple web page for early feedback.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pawel-kica/claude-code-100/single-prototype
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.

Any agent
npx skills add Pawel-Kica/claude-code-100 --skill single-prototype
Clone the repo
git clone --depth 1 https://github.com/Pawel-Kica/claude-code-100

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 single-prototype

README.md
[![agentmods](https://agentmods.dev/badge/skills/pawel-kica/claude-code-100/single-prototype/github.svg)](https://agentmods.dev/skills/pawel-kica/claude-code-100/single-prototype)
Your own site
<a href="https://agentmods.dev/skills/pawel-kica/claude-code-100/single-prototype"><img src="https://agentmods.dev/badge/skills/pawel-kica/claude-code-100/single-prototype/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 single-prototype

Your own site · 80×15
<a href="https://agentmods.dev/skills/pawel-kica/claude-code-100/single-prototype"><img src="https://agentmods.dev/badge/skills/pawel-kica/claude-code-100/single-prototype.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 108 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 $0.00025 $0.00108
Opus 5.5 $0.00010 $0.00043
Sonnet 5.5 $0.00005 $0.00022
Haiku 4.5 $0.00003 $0.00011

Measured 25d ago against content hash abc56b40f551, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

single-prototype 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 25d 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.

skills/engineering/single-prototype/SKILL.md · 13 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 25d ago First seen · 13 lines · 25 tokens per session scan A abc56b40f551

Subscribe to this mod's changes

single-prototype is a skill published in the GitHub repository Pawel-Kica/claude-code-100 (2 stars, last pushed 18d ago), with no licence file. It adds 25 tokens to every session and 108 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 2026-09-29.

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