preview

preview is a skill for Claude Code, Codex from crystal0224/slide-maker. It costs 21 tokens per session (199 once invoked), scanned A, original, MIT.

A command that opens a presentation in a web browser by finding a generated `dist/lecture.html` file and opening it on macOS.

In plain words
What is it for?
Use `/preview` after a presentation has been built to open the resulting lecture page in the browser.
Why use it?
It saves the user from locating the presentation file and launching it manually.

Skill for Claude CodeCodex

Part of the slide-maker plugin — 5 skills, 4 agents shipped together

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 skills/crystal0224/slide-maker/preview
Any agent
npx skills add crystal0224/slide-maker --skill preview
Clone the repo
git clone --depth 1 https://github.com/crystal0224/slide-maker

Made for: Claude Code, Codex.

Or install slide-maker, the plugin that ships this one along with the rest of its 5 skills, 4 agents.

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 preview

README.md
[![agentmods](https://agentmods.dev/badge/skills/crystal0224/slide-maker/preview.svg)](https://agentmods.dev/skills/crystal0224/slide-maker/preview)
Your own site
<a href="https://agentmods.dev/skills/crystal0224/slide-maker/preview"><img src="https://agentmods.dev/badge/skills/crystal0224/slide-maker/preview.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 199 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 $0.00021 $0.00199
Opus 5 $0.00010 $0.00100
Sonnet 5 $0.00004 $0.00040
Haiku 4.5 $0.00002 $0.00020

Measured 3d ago against content hash cf6a19cb46cc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

preview 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.

skills/preview/SKILL.md · 29 lines

What it actually says

Preview

프레젠테이션을 브라우저에서 바로 엽니다.

실행

  1. 현재 디렉토리 또는 상위 디렉토리에서 dist/lecture.html을 찾습니다
  2. 찾으면 open dist/lecture.html 실행 (macOS)
PROJECT_DIR=$(pwd)
while [ ! -f "$PROJECT_DIR/dist/lecture.html" ]; do
  PROJECT_DIR=$(dirname "$PROJECT_DIR")
  if [ "$PROJECT_DIR" = "/" ]; then
    echo "dist/lecture.html을 찾을 수 없습니다. 먼저 /rebuild를 실행하세요."
    exit 1
  fi
done

open "$PROJECT_DIR/dist/lecture.html"

사용자에게 보고: "브라우저에서 열었습니다: {PROJECT_DIR}/dist/lecture.html"

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 · 29 lines · 21 tokens per session scan A cf6a19cb46cc

Subscribe to this mod's changes

preview is a skill published in the GitHub repository crystal0224/slide-maker (5 stars, last pushed 6mo ago), licensed MIT. It adds 21 tokens to every session and 199 once invoked, about $0.0001 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.

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