concept-generate

concept-generate is a skill for Claude Code from GoogilyBoogily/googilyboogily-claude-power-tools. It costs 47 tokens per session (2,440 once invoked), scanned A, original, MIT.

A document generator for the concept phase of a Game Design Bible, based on context gathered earlier.

In plain words
What is it for?
It creates the design pillars, game vision, detailed pillar notes, MDA analysis, and non-goals for the project.
Why use it?
It turns collected design decisions and research into consistent concept documents without relying on unstated assumptions.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the game-design-bible plugin — 28 skills, 1 agent shipped together

Good fit It creates the design pillars, game vision, detailed pillar notes, MDA analysis, and non-goals for the project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/googilyboogily/googilyboogily-claude-power-tools/concept-generate
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 GoogilyBoogily/googilyboogily-claude-power-tools --skill concept-generate
Clone the repo
git clone --depth 1 https://github.com/GoogilyBoogily/googilyboogily-claude-power-tools

Made for: Claude Code.

Or install game-design-bible, the plugin that ships this one along with the rest of its 28 skills, 1 agent.

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 concept-generate

README.md
[![agentmods](https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/concept-generate/github.svg)](https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/concept-generate)
Your own site
<a href="https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/concept-generate"><img src="https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/concept-generate/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 concept-generate

Your own site · 80×15
<a href="https://agentmods.dev/skills/googilyboogily/googilyboogily-claude-power-tools/concept-generate"><img src="https://agentmods.dev/badge/skills/googilyboogily/googilyboogily-claude-power-tools/concept-generate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,440 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 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 $0.00047 $0.02440
Opus 5 $0.00023 $0.01220
Sonnet 5 $0.00009 $0.00488
Haiku 4.5 $0.00005 $0.00244

Measured 9d ago against content hash b2b1ac616e61, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

concept-generate 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 9d 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.

plugins/game-design-bible/skills/concept-generate/SKILL.md · 298 lines

How it starts

The opening of the file, as written. The whole thing — 298 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Concept Phase — Document Generator

Generate the complete Concept phase (Phase 0) of a Game Design Bible from a previously gathered context file. This skill runs with clean context and is non-interactive — all questions were answered during the gather phase.

Input

$ARGUMENTS — path to the context file (e.g., docs/game-design-bible/context/concept-context.md), and optionally:

  • --output-dir <path> — override the output directory from the context file

Parse Arguments

Extract from $ARGUMENTS:

  • Context File: First non-flag argument
  • Output Dir: --output-dir <path>, or extracted from the context file's Output Dir field

Source Integrity Rules

Every factual claim in these documents must be traceable to the context file.

  1. Ground every claim. Every statement must trace back to the context file — user answers, MDA analysis, web research with URLs, or design pillar deliberations.
  2. Flag ungrounded claims. If you need to state something not in the context file, mark it explicitly as [ASSUMPTION].
  3. Never invent details. If the context file doesn't cover something, put it in Open Questions — don't fabricate.

Process

Step 1: Read Inputs

  1. Read the context file from $ARGUMENTS.
  2. Extract all gathered information:
    • Game concept, scope, core fantasy
    • Genre & platform details
    • Design pillars with "What This Rules Out" lists
    • Non-goals
    • MDA analysis (aesthetics, dynamics, mechanics)
    • Web research findings
    • Open questions
    • Output directory

Step 2: Create Directory Structure

mkdir -p <output-dir>/00-concept
mkdir -p <output-dir>/01-core-loop
mkdir -p <output-dir>/02-systems
mkdir -p <output-dir>/03-narrative
mkdir -p <output-dir>/04-art-audio
mkdir -p <output-dir>/05-technical-production
mkdir -p <output-dir>/context
mkdir -p <output-dir>/reviews

Step 3: Generate Documents

Generate these files in order. Every section file follows this template structure:

# [Title]

> **Pillar Alignment:** [Which design pillars this section serves]

## Overview

[2-3 paragraph summary]

## Detailed Design

[Section-specific content]

## Design Rationale

[Why these choices were made, grounded in context file]

## Open Questions

- [Unresolved items relevant to this section]

## Cross-References

- [Links to related sections within the bible]

## Changelog

| Date | Change | Reason |
|------|--------|--------|
| [today] | Initial creation | Phase 0 — Concept |

Read the full file on GitHub · 298 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. 9d ago First seen · 298 lines · 47 tokens per session scan A b2b1ac616e61

Subscribe to this mod's changes

concept-generate is a skill published in the GitHub repository GoogilyBoogily/googilyboogily-claude-power-tools (2 stars, last pushed 4mo ago), licensed MIT. It adds 47 tokens to every session and 2,440 once invoked, about $0.0002 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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