deck-new

deck-new is a skill for Claude Code, Codex from YoungjaeDev/my-claude-plugins. It costs 159 tokens per session (1,200 once invoked), scanned B, original, MIT.

A scaffolding workflow for creating a new house-format lecture deck in the current repository. It creates the deck's page structure, sample section, animations, fonts, assets, and local rules.

In plain words
What is it for?
Use it to start a new branded lecture deck in a repository that does not already contain a `deck/` directory.
Why use it?
It provides the required starting files and conventions for a deck without making you assemble the project structure by hand.

Skill for Claude CodeCodex

Written for Claude Code and Codex: ${CLAUDE_PLUGIN_ROOT variable, but also agents/openai.yaml present. Also seen: names the AskUserQuestion tool; mentions Codex.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the deck plugin — 7 skills shipped together

Good fit Use it to start a new branded lecture deck in a repository that does not already contain a deck/ directory.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add YoungjaeDev/my-claude-plugins
Claude Code
/plugin install deck

Made for: Claude Code, Codex.

Or install deck, the plugin that ships this one along with the rest of its 7 skills.

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 deck-new

README.md
[![agentmods](https://agentmods.dev/badge/skills/youngjaedev/my-claude-plugins/deck-new/github.svg)](https://agentmods.dev/skills/youngjaedev/my-claude-plugins/deck-new)
Your own site
<a href="https://agentmods.dev/skills/youngjaedev/my-claude-plugins/deck-new"><img src="https://agentmods.dev/badge/skills/youngjaedev/my-claude-plugins/deck-new/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 deck-new

Your own site · 80×15
<a href="https://agentmods.dev/skills/youngjaedev/my-claude-plugins/deck-new"><img src="https://agentmods.dev/badge/skills/youngjaedev/my-claude-plugins/deck-new.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 159 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,200 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00159 $0.01200
Opus 5.5 $0.00064 $0.00480
Sonnet 5.5 $0.00032 $0.00240
Haiku 4.5 $0.00016 $0.00120

Measured today against content hash 4f3354680b4e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

deck-new scanned grade B with 1 finding 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 today.

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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

found=$(find "$HOME/.claude/plugins/cache" "${CODEX_PLUGIN_CACHE:-$HOME/.codex/plugins/cache}" \
plugins/deck/skills/deck-new/SKILL.md · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

deck-new

Overview

Creates deck/ from the plugin template (neutral shell.html, a sample sections/00-cover.html, outline.md, motions/basic.js, fonts, vendor/gsap.min.js, brand assets, an empty assets/logos/sources.json, deck/.gitignore) and writes the three rule copies into .claude/rules/, each stamped with the plugin version. The deck owns every copied file afterwards. Build, check, render and deploy tools stay in the plugin and are never copied.

When to use

  • The user explicitly asks for a new house-format deck in the current repository.
  • Not when deck/ exists: the scaffold refuses. Use deck-sync for rule updates and deck-author for writing slides.
  • Not for a generic talk or a PPTX conversion: that is frontend-slides.

Procedure

Interaction gate: Claude uses AskUserQuestion; Codex uses request_user_input when exposed, otherwise asks in plain text and waits.

  1. Confirm the target. Show pwd and ask the user to confirm it is the repository root that should hold deck/.

  2. Resolve the plugin root and scaffold. Shell state does not persist between tool calls, so keep the resolver and the command in one call.

    PLUGIN_ROOT="${PLUGIN_ROOT:-${CLAUDE_PLUGIN_ROOT:-}}"
    [ -z "$PLUGIN_ROOT" ] && [ -f plugins/deck/scripts/kit.py ] && PLUGIN_ROOT=plugins/deck
    if [ -z "$PLUGIN_ROOT" ]; then
      # find, not a glob: zsh aborts on an unmatched glob and does not split an unquoted list.
      found=$(find "$HOME/.claude/plugins/cache" "${CODEX_PLUGIN_CACHE:-$HOME/.codex/plugins/cache}" \
        -mindepth 3 -maxdepth 3 -type d -path '*/deck/*' 2>/dev/null | awk -F/ '{print $NF "\t" $(0)}')
      if sort -V </dev/null >/dev/null 2>&1; then
        PLUGIN_ROOT=$(printf '%s\n' "$found" | sort -V | tail -1 | cut -f2-)
      else
        PLUGIN_ROOT=$(printf '%s\n' "$found" | sort -t. -k1,1n -k2,2n -k3,3n | tail -1 | cut -f2-)
      fi
    fi
    [ -f "$PLUGIN_ROOT/scripts/kit.py" ] || { echo "deck plugin scripts not found; export PLUGIN_ROOT=<path to plugins/deck>"; exit 1; }
    PY=$(command -v python3 || command -v python)
    "$PY" "$PLUGIN_ROOT/scripts/kit.py" new .
    

Read the full file on GitHub · 62 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. today Changed 4f3354680b4e
  2. 13d ago First seen · 62 lines · 159 tokens per session scan B eb2d630c9a4b

Subscribe to this mod's changes

deck-new is a skill published in the GitHub repository YoungjaeDev/my-claude-plugins (2 stars, last pushed yesterday), licensed MIT. It adds 159 tokens to every session and 1,200 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-06.

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