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What is Codex TUI Proof?
Codex TUI Proof is a published development & workflow plugin for AI coding agents in the codex ecosystem, developed by Ben Cohen and distributed through the HOL AI plugin registry. Visually validate real local terminal UIs in Codex's in-app browser with screenshots and session evidence.
- Canonical slug
- ben-cohen/codex-tui-proof
- Version
- v0.1.0 · updated Sep 20, 2026
- Open data
- entity.json (JSON-LD)
Trust & Reputation
Factor Analysis
Per-metric points (0–100 each) combined via a weighted average into the overall score.
Registry Snapshot
- Canonical profile
- https://hol.org/registry/plugins/ben-cohen%2Fcodex-tui-proof
- Publisher verification
- No
- Marketplace source
- Unknown
- Scanner
- Broker fallback
- Safety label
- safe
- Digest verified
- Yes
Trust & reputation
Trust & Reputation
Factor Analysis
Per-metric points (0–100 each) combined via a weighted average into the overall score.
Provenance
- Plugin root
- .
- Source repo
- https://github.com/bnc4vk/codex-tui-proof
- Source commit
- 32e5b9260a19…
- Publisher verified
- No
- Owner verified
- @bnc4vk
Continuous scanner CI detected
No action is required. This plugin receives the full trust score.
Verified badge not detected
Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.
Security Posture
- Provider
- registry-broker-fallback
- Grade
- A · safe
- Version
- Unknown
Findings
Cisco skill scanner timed out after 60000 ms
Codex TUI Proof — Frequently asked questions
- What is Codex TUI Proof?
- Codex TUI Proof is an AI plugin in the HOL registry. Visually validate real local terminal UIs in Codex's in-app browser with screenshots and session evidence.
- How do I install Codex TUI Proof?
- Install Codex TUI Proof in your harness: Codex — codex plugin marketplace add bnc4vk/codex-tui-proof; Any agent — npx skills add bnc4vk/codex-tui-proof. Full step-by-step guidance is on the HOL plugin page.
- How do I install Codex TUI Proof in Codex?
- To install Codex TUI Proof in Codex, start with codex plugin marketplace add bnc4vk/codex-tui-proof. The complete step-by-step install guide for Codex is on the HOL plugin page.
- Is Codex TUI Proof free?
- Pricing for Codex TUI Proof is published on its HOL plugin page when the maker schedules a launch.
- Who publishes Codex TUI Proof?
- Codex TUI Proof is published by Ben Cohen and listed on HOL.
- Is Codex TUI Proof available now?
- Codex TUI Proof availability is listed on its HOL plugin page.
Install Guidance
Install in Codex
Install through the Codex CLI plugin marketplace.
- 1
Register the marketplace
Run in any terminal. Codex reads the marketplace entry from .agents/plugins/marketplace.json (or the legacy .claude-plugin path) in the repository. If the repository ships none, add the generated entry from the Advanced section below first.
shell - 2
Install from the Plugins browser
Open Codex, open the Plugins browser, choose the codex-tui-proof marketplace, and install codex-tui-proof.
- 3
Verify the marketplace registration
shell
Plugin Manifest
{
"name": "codex-tui-proof",
"version": "0.1.0",
"description": "Validate real local terminal UIs visually in Codex's in-app browser without desktop takeover.",
"author": {
"name": "Ben Cohen",
"url": "https://github.com/bnc4vk"
},
"homepage": "https://github.com/bnc4vk/codex-tui-proof#readme",
"repository": "https://github.com/bnc4vk/codex-tui-proof",
"license": "MIT",
"keywords": [
"codex",
"terminal-ui",
"tui-testing",
"visual-validation",
"developer-tools"
],
"skills": "./",
"interface": {
"displayName": "Codex TUI Proof",
"developerName": "Ben Cohen",
"shortDescription": "Visual TUI proof without desktop takeover",
"longDescription": "Launch a real local PTY in a deterministic browser terminal, let Codex interact with it through the in-app browser, and attach screenshot plus session evidence without Computer Use.",
"category": "Developer Tools",
"capabilities": [
"Interactive",
"Local",
"Visual validation"
],
"defaultPrompt": [
"Visually validate this TUI in Codex without Computer Use.",
"Run this CLI in the browser terminal and attach proof.",
"Check this TUI change at a fixed terminal size."
],
"websiteURL": "https://github.com/bnc4vk/codex-tui-proof",
"privacyPolicyURL": "https://github.com/bnc4vk/codex-tui-proof/blob/main/PRIVACY.md",
"termsOfServiceURL": "https://github.com/bnc4vk/codex-tui-proof/blob/main/TERMS.md",
"brandColor": "#7AA2F7",
"composerIcon": "./assets/icon.png",
"logo": "./assets/icon.png",
"screenshots": [
"./assets/opencode-final.png",
"./assets/opencode-command-palette.png"
]
},
"registryIndexVersion": 5
}Marketplace Source
- Repo URL
- https://github.com/bnc4vk/codex-tui-proof
- Marketplace path
- Unknown
- Source path
- plugins/bnc4vk/codex-tui-proof
- Install policy
- AVAILABLE
Skills
1 SKILL.md file ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.
validate-tui-in-codex
skills/validate-tui-in-codex/SKILL.md
Visually validate an interactive CLI or terminal UI in Codex's in-app browser using a real local PTY, fixed rendering, keyboard interaction, screenshots, and session evidence. Use for TUI layout changes, terminal menus, colors, prompts, resize behavior, keyboard flows, or proof-of-work where Codex would otherwise reach for Computer Use or a desktop terminal. Do not use for desktop-terminal-emulator-specific behavior or ordinary non-interactive command output.
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.
File Inventory
.codex-plugin/plugin.json
plugin-manifest
1,486 bytes
978fb0bef8f53f48…
assets/icon.png
asset
31,676 bytes
4e34833a83aed6fa…
assets/opencode-command-palette.png
asset
211,844 bytes
410b078cdd441fb9…
assets/opencode-final.png
asset
200,748 bytes
09033a40be8ff21e…
README.md
file
5,157 bytes
83e95a5538a97eea…
SECURITY.md
file
1,254 bytes
724884a2a9e8e4c1…
skills/validate-tui-in-codex/agents/openai.yaml
skill
228 bytes
13e7362cbc88dbca…
skills/validate-tui-in-codex/references/evidence-contract.md
skill
2,477 bytes
752f73da979bfac7…
skills/validate-tui-in-codex/SKILL.md
skill
5,810 bytes
034cf4fde1e0bf97…