fable-super-god-mode

fable-super-god-mode is a skill for Claude Code, Codex from nagarjuna-msr/fable-god-mode. It costs 135 tokens per session (1,735 once invoked), scanned A, original, MIT.

A review skill that adds an independent Codex-based correctness check to Fable God Mode, a workflow for planning, delegating, and reviewing coding work. It focuses on work where exact behavior matters, such as calculations, parsing, state machines, concurrency, and API contracts.

In plain words
What is it for?
Use it to critique deterministic plans, review substantial diffs before committing, check backend or algorithmic work, and investigate a bug after one attempted fix has failed.
Why use it?
It provides a second opinion when a plan or code change may contain subtle correctness errors. The extra review is reserved for correctness-heavy work rather than creative tasks.

Skill for Claude CodeCodex

Written for Claude Code and Codex: ${CLAUDE_SKILL_DIR} variable, but also runs codex exec. Also seen: mentions subagents; mentions Codex.

Good fit Use it to critique deterministic plans, review substantial diffs before committing, check backend or algorithmic work, and investigate a bug after one attempted fix has failed.

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Install with agentmods
npx agentmods add skills/nagarjuna-msr/fable-god-mode/fable-super-god-mode
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 nagarjuna-msr/fable-god-mode --skill fable-super-god-mode
Clone the repo
git clone --depth 1 https://github.com/nagarjuna-msr/fable-god-mode

Made for: Claude Code, Codex.

Its marketplace also offers this one on its own, as the plugin fable-super-god-mode/plugin install fable-super-god-mode after adding the marketplace above.

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 fable-super-god-mode

README.md
[![agentmods](https://agentmods.dev/badge/skills/nagarjuna-msr/fable-god-mode/fable-super-god-mode/github.svg)](https://agentmods.dev/skills/nagarjuna-msr/fable-god-mode/fable-super-god-mode)
Your own site
<a href="https://agentmods.dev/skills/nagarjuna-msr/fable-god-mode/fable-super-god-mode"><img src="https://agentmods.dev/badge/skills/nagarjuna-msr/fable-god-mode/fable-super-god-mode/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 fable-super-god-mode

Your own site · 80×15
<a href="https://agentmods.dev/skills/nagarjuna-msr/fable-god-mode/fable-super-god-mode"><img src="https://agentmods.dev/badge/skills/nagarjuna-msr/fable-god-mode/fable-super-god-mode.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 135 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,735 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 $0.00135 $0.01735
Opus 5 $0.00068 $0.00868
Sonnet 5 $0.00027 $0.00347
Haiku 4.5 $0.00014 $0.00173

Measured 11d ago against content hash 51acef12756b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

fable-super-god-mode 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 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/ask-codex.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/fable-super-god-mode/SKILL.md · 143 lines

How it starts

The opening of the file, as written. The whole thing — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fable Super God Mode

What this adds

This skill adds ONE thing to Fable God Mode: a Codex lane — an OpenAI reviewer (default model gpt-5.6-sol) reached through a vendored one-shot bridge to the Codex CLI. The Codex reviewer acts as Fable's deterministic specialist and independent critic on correctness-heavy work.

Fable God Mode's 10-80-10 discipline still governs everything — Fable 5 plans, cheaper Claude subagents execute, Fable reviews and owns final quality. Nothing here replaces or relaxes that loop; see skills/fable-god-mode/SKILL.md (installed as the fable-god-mode skill). This skill only inserts a second, independent model at specific correctness checkpoints inside that same loop.

When to use the Codex lane

Keep it gated. Fire the lane for:

  • Deterministic / backend / algorithmic work — numeric, boundary, parsing, state-machine, concurrency, data/scoring math, or API-contract correctness.
  • Plan critique — before executing a multi-step deterministic plan.
  • Diff review — of substantial deterministic changes before finalizing or committing.
  • Debugging second opinion — AFTER one failed fix attempt, not before.

Do NOT fire it for creative work, frontend / visual / UX, copy / prose / docs, conversational turns, or trivial edits — a second model there adds cost without decisive signal. Full routing detail lives in references/routing.md.

Running a critique

Three steps: write a prompt file, invoke the bridge, read the envelope.

  1. Write the prompt file. A plain text/markdown file containing the FULL, self-contained critique request: the task context plus the material to review inline, or paths for Codex to read. The bridge sends only this file (plus a fixed output-contract suffix) — never your environment. Codex runs read-only-sandboxed and may READ files in the working directory only if the prompt points it at paths.

  2. Invoke the bridge (Node ≥18, zero dependencies):

    node "${CLAUDE_SKILL_DIR}/scripts/ask-codex.mjs" <prompt-file> [--model <id>] [--timeout <seconds>]
    

Read the full file on GitHub · 143 lines

Files

What ships with it

4 files 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. 11d ago First seen · 143 lines · 135 tokens per session scan A 51acef12756b

Subscribe to this mod's changes

fable-super-god-mode is a skill published in the GitHub repository nagarjuna-msr/fable-god-mode (10 stars, last pushed 1mo ago), licensed MIT. It adds 135 tokens to every session and 1,735 once invoked, about $0.0007 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 2026-08-31.