codex

codex is a command for coding agents from Houseofmvps/ultraship. It costs 9 tokens per session (265 once invoked), scanned A, original, MIT.

A codebase index generator that creates a compact map of a project's routes, database schema, components, and library exports.

In plain words
What is it for?
Use it to generate .ultraship/codex.md, review the project's main building blocks, and refresh the map after major structural changes.
Why use it?
The map helps an AI assistant understand the project's structure without repeatedly exploring every file, which can reduce token use.

Command

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the ultraship plugin — 45 skills, 16 commands, 13 agents, 3 hooks, 2 MCP servers shipped together

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.

agentmods
npx agentmods add commands/houseofmvps/ultraship/codex
Clone the repo
git clone --depth 1 https://github.com/Houseofmvps/ultraship

Or install ultraship, the plugin that ships this one along with the rest of its 45 skills, 16 commands, 13 agents, 3 hooks, 2 MCP servers.

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 codex

README.md
[![agentmods](https://agentmods.dev/badge/commands/houseofmvps/ultraship/codex.svg)](https://agentmods.dev/commands/houseofmvps/ultraship/codex)
Your own site
<a href="https://agentmods.dev/commands/houseofmvps/ultraship/codex"><img src="https://agentmods.dev/badge/commands/houseofmvps/ultraship/codex.svg" alt="Measured on agentmods" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 265 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00009 $0.00265
Opus 5 $0.00005 $0.00133
Sonnet 5 $0.00002 $0.00053
Haiku 4.5 $0.00001 $0.00026

Measured 5d ago against content hash e31805b428ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codex 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 5d 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.

commands/codex.md · 31 lines

What it actually says

/codex — Codebase Index Generator

Generate a compact markdown index of your codebase (routes, schema, components, lib exports) so AI assistants don't waste tokens exploring project structure.

How It Works

  1. Run node "${CLAUDE_PLUGIN_ROOT}/tools/codex-generator.mjs" .
  2. Read the generated .ultraship/codex.md
  3. Present the output to the user — this is their codebase map

What It Indexes

Section Sources
Routes Hono, Express, Fastify, Next.js app router
Schema Drizzle tables, Prisma models (skips audit fields)
Components React/Vue/Svelte (skips shadcn/radix primitives)
Lib Exported functions, types, classes from lib/utils/helpers dirs

After Generating

Tell the user:

  • The codex is saved at .ultraship/codex.md
  • Add it to .gitignore (it's generated, not source)
  • Re-run /codex after major structural changes
  • The codex reduces token usage by giving AI a pre-built map instead of exploring files
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. 5d ago First seen · 31 lines · 9 tokens per session scan A e31805b428ea

Subscribe to this mod's changes

codex is a command published in the GitHub repository Houseofmvps/ultraship (121 stars, last pushed 1mo ago), licensed MIT. It adds 9 tokens to every session and 265 once invoked, about $0.0000 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.