prototype-previewer

A command that builds an interactive reviewer for a project's prototypes, using HTML files to show separate pages or interface states.

In plain words
What is it for?
Use it to create or adapt prototype review pages, including an index and a Figma capture page, with English interface text by default.
Why use it?
It gives a project a consistent place to inspect and review prototypes when one does not already exist. Each independent page or state can be reviewed separately.

Command for Claude Code

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.

agentmods
npx agentmods add commands/chocpink123/prototype-previewer-skill/prototype-previewer
Clone the repo
git clone --depth 1 https://github.com/chocpink123/prototype-previewer-skill

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 136 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00136
Opus 5 $0.00000 $0.00068
Sonnet 5 $0.00000 $0.00027
Haiku 4.5 $0.00000 $0.00014

Measured 3d ago against content hash df492d7521b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

prototype-previewer 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 3d 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.

adapters/claude/.claude/commands/prototype-previewer.md · 20 lines

What it actually says

Build an interactive prototype reviewer for this project.

Follow these files:

  • prototype-previewer/SKILL.md
  • prototype-previewer/references/previewer-spec.md
  • prototype-previewer/references/adaptation-checklist.md

Prefer these outputs:

  • index.html
  • figma_capture_index.html

If the project does not already have a reviewer shell, use:

  • prototype-previewer/assets/index.template.html
  • prototype-previewer/assets/figma_capture_index.template.html

Defaults:

  • use English for interface copy and review notes
  • if another language is needed, the prompt must request it explicitly
  • every independent page or state should be its own data-screen
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. 3d ago First seen · 20 lines · 0 tokens per session scan A df492d7521b0

Subscribe to this mod's changes

prototype-previewer is a command published in the GitHub repository chocpink123/prototype-previewer-skill (28 stars, last pushed 4mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 136 tokens. 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.