codex-host: Skill for Claude Code

.agents/skills/codexhost-pre-push-checks/SKILL.md

codexhost-pre-push-checks is a skill for Claude Code, Codex from BytePioneer-AI/codex-host. It costs 76 tokens per session (1,119 once invoked), scanned A, original, LGPL-3.0.

A set of local checks to run before pushing code, marking a pull request ready, or saying that checks passed. It chooses checks based on the files changed, covering TypeScript, Rust, renderer code, release scripts, and gates, and protects rewritten-history pushes.

In plain words
What is it for?
Use it before pushing or declaring a PR ready, especially when changes span TypeScript, Rust, renderer code, or release tooling.
Why use it?
It avoids running every check unnecessarily while still selecting checks relevant to the change. It also helps prevent unsafe history rewrites and unsupported claims that a change passed validation.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is BytePioneer-AI/codex-host's own configuration. It tells Claude Code and Codex how to work on codex-host 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-host configures →

About the project

CodexHost is a desktop application that lets users run coding-agent harnesses such as Pi and Claude Code inside Codex Desktop. It is for people who want to choose among multiple agents and have them delegate tasks to one another while staying in one workspace.

BytePioneer-AI/codex-host · 2,982 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to BytePioneer-AI/codex-host. 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/BytePioneer-AI/codex-host/main/.agents/skills/codexhost-pre-push-checks/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/BytePioneer-AI/codex-host

Made for: Claude Code, 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 codexhost-pre-push-checks

README.md
[![agentmods](https://agentmods.dev/badge/skills/bytepioneer-ai/codex-host/codexhost-pre-push-checks/github.svg)](https://agentmods.dev/skills/bytepioneer-ai/codex-host/codexhost-pre-push-checks)
Your own site
<a href="https://agentmods.dev/skills/bytepioneer-ai/codex-host/codexhost-pre-push-checks"><img src="https://agentmods.dev/badge/skills/bytepioneer-ai/codex-host/codexhost-pre-push-checks/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 codexhost-pre-push-checks

Your own site · 80×15
<a href="https://agentmods.dev/skills/bytepioneer-ai/codex-host/codexhost-pre-push-checks"><img src="https://agentmods.dev/badge/skills/bytepioneer-ai/codex-host/codexhost-pre-push-checks.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,119 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 unknown 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 $0.00076 $0.01119
Opus 5.5 $0.00030 $0.00448
Sonnet 5.5 $0.00015 $0.00224
Haiku 4.5 $0.00008 $0.00112

Measured 13d ago against content hash 8b85889ab3a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codexhost-pre-push-checks 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 13d 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.

.agents/skills/codexhost-pre-push-checks/SKILL.md · 55 lines

The source is not reproduced here

Licensed LGPL-3.0

The repository is licensed LGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 13d ago First seen · 55 lines · 76 tokens per session scan A 8b85889ab3a5

Subscribe to this mod's changes

codexhost-pre-push-checks is a skill published in the GitHub repository BytePioneer-AI/codex-host (2,982 stars, last pushed yesterday), licensed LGPL-3.0. It adds 76 tokens to every session and 1,119 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-10-14.

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