story-readiness

story-readiness is a skill for Codex from frabcd/codex-ai-game-studio. It costs 77 tokens per session (3,993 once invoked), scanned A, a copy of story-readiness, MIT.

A read-only check that decides whether a development story contains enough detail for implementation.

In plain words
What is it for?
Use it to review one or more story files and receive a READY, NEEDS WORK, or BLOCKED result with specific gaps.
Why use it?
It reveals missing requirements, unclear acceptance criteria, unresolved design questions, or absent engine notes before development begins.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents; mentions Codex; $skill-name invocation.

Good fit Use it to review one or more story files and receive a READY, NEEDS WORK, or BLOCKED result with specific gaps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/frabcd/codex-ai-game-studio/story-readiness
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 frabcd/codex-ai-game-studio --skill story-readiness
Clone the repo
git clone --depth 1 https://github.com/frabcd/codex-ai-game-studio

Made for: Codex.

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 story-readiness

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/frabcd/codex-ai-game-studio/story-readiness"><img src="https://agentmods.dev/badge/skills/frabcd/codex-ai-game-studio/story-readiness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,993 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 92% copy Near-identical to another mod 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 $0.00077 $0.03993
Opus 5 $0.00039 $0.01997
Sonnet 5 $0.00015 $0.00799
Haiku 4.5 $0.00008 $0.00399

Measured 8d ago against content hash 904b76a14cf2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

story-readiness 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.

Origin

This is a copy

92% identical to story-readiness — 44 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/ai-game-studio/skills/story-readiness/SKILL.md · 358 lines

How it starts

The opening of the file, as written. The whole thing — 358 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Port provenance: adapted from the pinned upstream source at 984023ddac0d5e27624f2baacde6105e45de375f under MIT; see the repository parity ledger for the exact path and blob.

Story Readiness

This skill validates that a story file contains everything a developer needs to begin implementation — no mid-sprint design interruptions, no guessing, no ambiguous acceptance criteria. Run it before assigning a story.

This skill is read-only. It never edits story files. It reports findings and asks whether the user wants help filling gaps.

Output: Verdict per story (READY / NEEDS WORK / BLOCKED) with a specific gap list for each non-ready story.


Phase 0: Resolve Review Mode

Resolve the review mode once at startup (store for all gate spawns this run):

  1. If skill was called with --review [full|lean|solo] → use that value
  2. Else read production/review-mode.txt → use that value
  3. Else → default to lean

See the installed Codex role-gate protocol for the full check pattern and mode definitions.


1. Parse Arguments

Scope: the first invocation argument (blank = ask user via the available user-input mechanism)

  • Specific path (e.g., $ai-game-studio:story-readiness production/epics/combat/story-001-basic-attack.md): validate that single story file.
  • sprint: read the current sprint plan from production/sprints/ (most recent file), extract every story path it references, validate each one.
  • all: glob production/epics/**/*.md, exclude EPIC.md index files, validate every story file found.
  • No argument: ask the user which scope to validate.

If no argument is given, use the available user-input mechanism:

  • "What would you like to validate?"
    • Options: "A specific story file", "All stories in the current sprint", "All stories in production/epics/", "Stories for a specific epic"

Report the scope before proceeding: "Validating [N] story files."


2. Load Supporting Context

Before checking any stories, load reference documents once (not per-story):

Read the full file on GitHub · 358 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. 8d ago First seen · 358 lines · 77 tokens per session scan A 904b76a14cf2

Subscribe to this mod's changes

story-readiness is a skill published in the GitHub repository frabcd/codex-ai-game-studio (10 stars, last pushed 4d ago), licensed MIT. It adds 77 tokens to every session and 3,993 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to story-readiness, differing in 44 lines, and is treated as a copy.

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