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Codex + Wahlu

Post to YouTube from Codex with Wahlu

Connect Codex to Wahlu once, then plan, draft and schedule posts for YouTube channels connected to Wahlu from the Codex CLI, IDE extension and app. Every schedule can wait for your approval.

Connect CodexAll Codex options
What Codex can prepare on YouTube

  • Video

    One video with a title and description.

  • Short

    One square or vertical video of up to three minutes.

Ask Codex for YouTube posts

Example prompts and the steps to expect. These are illustrations, not recorded conversations.

Example prompt

“Write a YouTube title, description and tags for the demo video linked in the changes in this branch, then create a private draft so I can check it.”

Example prompt

“Write a YouTube Short caption about the changes in this branch, attach the vertical clip at its public link and hold the schedule for review.”

Example prompt

“Run a readiness check on the YouTube draft you made for the changes in this branch and explain anything that would stop it publishing.”

What Wahlu does on YouTube

Codex works through Wahlu's tools, so it can set the YouTube options Wahlu supports.

YouTube settings on a draft

Title
Required, up to 100 characters.
Privacy
Public, unlisted or private.
Made for kids
Required on every upload.
Tags
Up to 500 characters of tags in total.
Notify subscribers
Choose whether subscribers are told.

Wahlu doesn't set a YouTube category or playlist.

The tool calls, in order

  1. 01

    list_targetsFinds the brand's connected YouTube account and checks it's ready.

  2. 02

    upload_media, import_media_from_url or list_mediaBrings in the image or video, or picks one from your media library.

  3. 03

    create_draftCreates the draft with its caption and youtube_settings, such as the post type.

  4. 04

    preflight_draftChecks the draft against YouTube's rules without changing it.

  5. 05

    create_schedulePuts it on the calendar at pending_review, held for your approval.

YouTube limits to know

Wahlu checks these before a post is scheduled, so the agent finds out early.

Getting video to YouTube

The agent can read a file in your project and upload it with upload_media. Files over 8 MB, including most video, go to a short-lived upload link the agent sends the file to. Public links and your media library work too.

Connect Codex to Wahlu

Set this up once and Codex can work on every network you've connected, not just YouTube.

  1. 1

    Run codex mcp add to add Wahlu. It's saved in ~/.codex/config.toml, which the Codex CLI, IDE extension and app share.

  2. 2

    Run codex mcp login wahlu and sign in to Wahlu in the browser that opens.

  3. 3

    Start a new Codex session so it picks up Wahlu's tools.

Checked against the Codex docs on 27 September 2026. Menus can change; if a step doesn't match what you see, follow the vendor's current instructions.

Add Wahlu to Codex
codex mcp add wahlu --url https://mcp.wahlu.com/mcp
codex mcp login wahlu

In the Codex IDE extension or app you can add it from the gear menu instead: MCP servers → Add server, choose Streamable HTTP and paste the URL, then restart. Codex signs in with a Client ID Metadata Document, which is what Wahlu uses.

You stay in control.

Every Wahlu plan includes agent access, through MCP and the API. You choose the workspace, brands and permissions each connection gets, and can disconnect it at any time.

Held until you approve

Agents create schedules at pending_review unless you've told them to publish. A held schedule can't publish until you approve it in the Wahlu calendar.

Publishing is its own permission

Publish to social accounts is separate from Manage your schedule. Leave it unticked and nothing your agent schedules can go out on its own.

Checked before it's scheduled

preflight_draft reports anything that would stop a post, such as media the network won't accept or a caption that's too long, without changing anything.

Some things stay in the app

Queues, general edits to existing drafts, approvals and connecting social accounts happen in the Wahlu app, not through your agent.

Keep going

Your next YouTube post, drafted by Codex.

Connect your YouTube account in Wahlu, then give Codex a specific brief.

Open WahluAll Codex options