build-tcg-deck

build-tcg-deck is a skill for Claude Code from pjt222/agent-almanac. It costs 104 tokens per session (2,152 once invoked), scanned A, original, MIT.

A guide for building decks for trading card games such as Pokémon, Magic: The Gathering, and Flesh and Blood. It covers strategy, resource curves, win conditions, the current competitive environment, and sideboards.

In plain words
What is it for?
Use it to create competitive or casual decks, adjust an existing deck after the competitive environment changes, evaluate new cards, or teach deck-building basics.
Why use it?
It turns a broad deck idea into a list suited to a particular game format, goal, budget, and expected opponents.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the agent-almanac plugin — 122 skills, 76 agents shipped together

Good fit Use it to create competitive or casual decks, adjust an existing deck after the competitive environment changes, evaluate new cards, or teach deck-building basics.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pjt222/agent-almanac/build-tcg-deck
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 pjt222/agent-almanac --skill build-tcg-deck
Clone the repo
git clone --depth 1 https://github.com/pjt222/agent-almanac

Made for: Claude Code.

Or install agent-almanac, the plugin that ships this one along with the rest of its 122 skills, 76 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 build-tcg-deck

README.md
[![agentmods](https://agentmods.dev/badge/skills/pjt222/agent-almanac/build-tcg-deck/github.svg)](https://agentmods.dev/skills/pjt222/agent-almanac/build-tcg-deck)
Your own site
<a href="https://agentmods.dev/skills/pjt222/agent-almanac/build-tcg-deck"><img src="https://agentmods.dev/badge/skills/pjt222/agent-almanac/build-tcg-deck/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 build-tcg-deck

Your own site · 80×15
<a href="https://agentmods.dev/skills/pjt222/agent-almanac/build-tcg-deck"><img src="https://agentmods.dev/badge/skills/pjt222/agent-almanac/build-tcg-deck.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,152 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 178
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00104 $0.02152
Opus 5 $0.00052 $0.01076
Sonnet 5 $0.00021 $0.00430
Haiku 4.5 $0.00010 $0.00215

Measured 8d ago against content hash 1adacec874ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

build-tcg-deck 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 8d 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.

i18n/caveman-lite/skills/build-tcg-deck/SKILL.md · 188 lines

How it starts

The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Build TCG Deck

Construct a trading card game deck from archetype selection through final optimization, following a structured process that works across Pokemon TCG, Magic: The Gathering, Flesh and Blood, and other major TCGs.

When to Use

  • Building a new deck for a specific tournament format or casual play
  • Adapting an existing deck to a changed meta-game
  • Evaluating whether a new card or set release warrants a deck change
  • Teaching someone the principles of deck construction
  • Converting a deck concept into a tournament-ready list

Inputs

  • Required: Card game (Pokemon TCG, MTG, FaB, etc.)
  • Required: Format (Standard, Expanded, Modern, Legacy, Blitz, etc.)
  • Required: Goal (competitive tournament, casual play, budget build)
  • Optional: Preferred archetype or strategy (aggro, control, combo, midrange)
  • Optional: Budget constraints (maximum spend, cards already owned)
  • Optional: Current meta-game snapshot (top decks, expected field)

Procedure

Step 1: Define the Archetype

Choose the deck's strategic identity.

  1. Identify the available archetypes in the current format:
    • Aggro: Win quickly through early pressure and efficient attackers
    • Control: Answer threats efficiently, win in the late game with card advantage
    • Combo: Assemble specific card combinations for powerful synergy or instant wins
    • Midrange: Flexible strategy that shifts between aggro and control as needed
    • Tempo: Gain resource advantage through efficient timing and disruption
  2. Select an archetype based on:
    • Player preference and playstyle
    • Meta-game positioning (what beats the top decks?)
    • Budget constraints (combo decks often need specific expensive cards)
    • Format legality (check ban lists and rotation status)
  3. Identify 1-2 primary win conditions:
    • How does this deck win the game?
    • What is the ideal game state this deck is trying to reach?
  4. State the archetype selection and win condition clearly

Read the full file on GitHub · 188 lines

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. 8d ago First seen · 188 lines · 104 tokens per session scan A 1adacec874ca

Subscribe to this mod's changes

build-tcg-deck is a skill published in the GitHub repository pjt222/agent-almanac (33 stars, last pushed yesterday), licensed MIT. It adds 104 tokens to every session and 2,152 once invoked, about $0.0005 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 2026-09-03.

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