codex-rewind: Skill for Codex

.codex/skills/test-tui/SKILL.md

test-tui is a skill for Codex from extracurricular-ai/codex-rewind. It costs 13 tokens per session (127 once invoked), scanned A, a copy of test-tui, Apache-2.0.

A guide for interactively testing Codex's text-based user interface, or TUI, which is a terminal-based screen for using the agent.

In plain words
What is it for?
Use it to start Codex in a test session, send test messages, and troubleshoot interactive behaviour.
Why use it?
It provides the required startup and message-sending details needed to verify changes through the interface and collect useful logs.

Skill for Codex

Written for Codex: installed under .codex/. Also seen: mentions Codex.

This is extracurricular-ai/codex-rewind's own configuration. It tells Codex how to work on codex-rewind itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything codex-rewind configures →

Reuse

Borrowing it

Nothing to install: this file belongs to extracurricular-ai/codex-rewind. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/extracurricular-ai/codex-rewind/main/.codex/skills/test-tui/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/extracurricular-ai/codex-rewind

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 test-tui

README.md
[![agentmods](https://agentmods.dev/badge/skills/extracurricular-ai/codex-rewind/test-tui/github.svg)](https://agentmods.dev/skills/extracurricular-ai/codex-rewind/test-tui)
Your own site
<a href="https://agentmods.dev/skills/extracurricular-ai/codex-rewind/test-tui"><img src="https://agentmods.dev/badge/skills/extracurricular-ai/codex-rewind/test-tui/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 test-tui

Your own site · 80×15
<a href="https://agentmods.dev/skills/extracurricular-ai/codex-rewind/test-tui"><img src="https://agentmods.dev/badge/skills/extracurricular-ai/codex-rewind/test-tui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 127 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 100% 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 $0.00013 $0.00127
Opus 5.5 $0.00005 $0.00051
Sonnet 5.5 $0.00003 $0.00025
Haiku 4.5 $0.00001 $0.00013

Measured 1mo ago against content hash e81787c2d976, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

test-tui 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 1mo 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

100% identical to test-tui — 0 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.

.codex/skills/test-tui/SKILL.md · 15 lines

What it actually says

You can start and use Codex TUI to verify changes.

Important notes:

Start interactively. Always set RUST_LOG="trace" when starting the process. Pass -c log_dir=<some_temp_dir> argument to have logs written to a specific directory to help with debugging. When sending a test message programmatically, send text first, then send Enter in a separate write (do not send text + Enter in one burst). Use just codex target to run - just codex -c ...

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. 1mo ago First seen · 15 lines · 13 tokens per session scan A e81787c2d976

Subscribe to this mod's changes

test-tui is a skill published in the GitHub repository extracurricular-ai/codex-rewind (56 stars, last pushed 28d ago), licensed Apache-2.0. It adds 13 tokens to every session and 127 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to test-tui, differing in 0 lines, and is treated as a copy.