cgs-create-epics

cgs-create-epics is a skill for Claude Code from merlinhu1/codex-game-studio. It costs 45 tokens per session (575 once invoked), scanned A, original, MIT.

A planning guide for breaking a game project goal into epics, meaning large related groups of work with clear outcomes and checks.

In plain words
What is it for?
Use it to plan Template Game work and produce epics with tasks, validation gates, affected files, evidence, and handoff information.
Why use it?
It makes dependencies, risks, ownership, and completion criteria visible before production work begins.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: model in frontmatter; reads .claude/ paths; installed under .agents/ (shared by several agents).

Good fit Use it to plan Template Game work and produce epics with tasks, validation gates, affected files, evidence, and handoff information.

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Install with agentmods
npx agentmods add skills/merlinhu1/codex-game-studio/cgs-create-epics
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 merlinhu1/codex-game-studio --skill cgs-create-epics
Clone the repo
git clone --depth 1 https://github.com/merlinhu1/codex-game-studio

Made for: Claude Code.

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 cgs-create-epics

README.md
[![agentmods](https://agentmods.dev/badge/skills/merlinhu1/codex-game-studio/cgs-create-epics/github.svg)](https://agentmods.dev/skills/merlinhu1/codex-game-studio/cgs-create-epics)
Your own site
<a href="https://agentmods.dev/skills/merlinhu1/codex-game-studio/cgs-create-epics"><img src="https://agentmods.dev/badge/skills/merlinhu1/codex-game-studio/cgs-create-epics/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 cgs-create-epics

Your own site · 80×15
<a href="https://agentmods.dev/skills/merlinhu1/codex-game-studio/cgs-create-epics"><img src="https://agentmods.dev/badge/skills/merlinhu1/codex-game-studio/cgs-create-epics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 575 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 $0.00045 $0.00575
Opus 5 $0.00023 $0.00287
Sonnet 5 $0.00009 $0.00115
Haiku 4.5 $0.00005 $0.00057

Measured 10d ago against content hash 8322e521a83f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

cgs-create-epics 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 10d 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.

.agents/skills/cgs-create-epics/SKILL.md · 79 lines

What it actually says

Codex Game Studio Create Epics

Use this skill for create epics work in Template Game.

Objective

Break project goals into epics with outcomes, dependencies, risks, and validation gates.

Inputs

  • AGENTS.md
  • .codex/studio.json
  • task-relevant files named by the user or task record
  • production/timeline.md
  • production/session-state/active.md
  • .codex/workflows/create-epics.md

Arguments

  • Objective or user request.
  • Target files, scenes, assets, or docs.
  • Constraints, deadlines, acceptance criteria, and verification command when known.

Procedure

  1. Clarify the requested break project goals into epics with outcomes, dependencies, risks, and validation gates. and identify the current project stage.
  2. Collect evidence for Epic Outcome, Dependencies, Risk.
  3. Break the work into owner-sized tasks with dependencies, risks, and acceptance checks.
  4. Produce the requested artifact or review with clear file paths and verification evidence.

Write Targets

  • production/

Output Contract

  • Summary
  • Epic Outcome
  • Dependencies
  • Risk
  • Gate
  • Risks
  • Changed files or proposed files
  • Verification evidence
  • Next owner or decision

Quality Gates

  • Epic Outcome
  • Dependencies
  • Risk
  • Gate
  • Scope remains bounded to the current task and project stage.
  • Report labels unverified assumptions separately from evidence.

Decision Gates

  • Continue only when the expected output can be verified or clearly labeled as a plan.
  • Escalate to producer or qa-playtester when scope, ownership, or acceptance evidence is ambiguous.
  • Stop before broad rewrites, generated prompt mirrors, or hidden lifecycle behavior.

Handoff

Report changed files, verification evidence, remaining risks, and the next owner or decision. Do not imply hidden hooks or autonomous background work.

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. 10d ago First seen · 79 lines · 45 tokens per session scan A 8322e521a83f

Subscribe to this mod's changes

cgs-create-epics is a skill published in the GitHub repository merlinhu1/codex-game-studio (53 stars, last pushed 1mo ago), licensed MIT. It adds 45 tokens to every session and 575 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 2026-08-30.

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