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Installation

Install NZT in Codex CLI

Guide to installing NZT in Codex CLI on Windows with a single PowerShell command: requirements, where AGENTS.md and the skills go, loading and updating.

A global install, for the whole machine. It is not a plugin: it is a set of standalone skills plus a delimited block of text in your provider’s instructions file.

Requirements

  • Codex CLI installed (the codex command is available).
  • Windows 10/11 with PowerShell.

Install with one command

Paste it into PowerShell:

irm https://nzt-ai.com/nzt/install-codex.ps1 | iex
One-command install is coming soon. The command below is an example: its address does not exist yet.

What it installs and where

What Path
Instructions $CODEX_HOME/AGENTS.md (defaults to ~/.codex/AGENTS.md)
Skills ~/.agents/skills/

In the instructions file, it adds a delimited block:

<!-- nzt:start --> ... kernel + provider adapter ... <!-- nzt:end -->
  • Changing CODEX_HOME moves the instructions, not the skills.
  • Skills do not go in ~/.codex/skills. If that folder exists, the installer warns you.

How it installs

  • It simulates before writing, and only then asks.
  • It respects what you already have in the instructions file and keeps a backup (.nzt-backup) the first time.
  • It never overwrites a file it did not write, and it keeps your local edits.
  • It is idempotent: installing again updates in place.
  • It uninstalls completely: it removes only what its manifest lists.

Loading

Start codex: the main thread loads NZT from the global AGENTS.md. Then follow getting started.

Update

Run the install command again: it is idempotent and updates in place, keeping what you edited.

See also