Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add jinxlzc/grok-codex-plugin/plugin install codexWrote 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.
[](https://agentmods.dev/commands/jinxlzc/grok-codex-plugin/setup)<a href="https://agentmods.dev/commands/jinxlzc/grok-codex-plugin/setup"><img src="https://agentmods.dev/badge/commands/jinxlzc/grok-codex-plugin/setup/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.
<a href="https://agentmods.dev/commands/jinxlzc/grok-codex-plugin/setup"><img src="https://agentmods.dev/badge/commands/jinxlzc/grok-codex-plugin/setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00017 | $0.00302 |
| Opus 5.5 | $0.00007 | $0.00121 |
| Sonnet 5.5 | $0.00003 | $0.00060 |
| Haiku 4.5 | $0.00002 | $0.00030 |
Grade A, and why
setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
88% identical to setup — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Run:
node "${GROK_PLUGIN_ROOT:-$CLAUDE_PLUGIN_ROOT}/scripts/codex-companion.mjs" setup --json $ARGUMENTS
If the result says Codex is unavailable and npm is available:
- Use
AskUserQuestion(Grok:ask_user_question) exactly once to ask whether Grok should install Codex now. - Put the install option first and suffix it with
(Recommended). - Use these two options:
Install Codex (Recommended)Skip for now
- If the user chooses install, run:
npm install -g @openai/codex
- Then rerun:
node "${GROK_PLUGIN_ROOT:-$CLAUDE_PLUGIN_ROOT}/scripts/codex-companion.mjs" setup --json $ARGUMENTS
If Codex is already installed or npm is unavailable:
- Do not ask about installation.
Output rules:
- Present the final setup output to the user.
- If installation was skipped, present the original setup output.
- If Codex is installed but not authenticated, preserve the guidance to run
codex login.
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.
- 1mo ago First seen · 38 lines · 17 tokens per session scan A 246a823534b6
setup is a command published in the GitHub repository jinxlzc/grok-codex-plugin (1 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 17 tokens to every session and 302 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to setup, differing in 8 lines, and is treated as a copy.
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