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Codex + Wahlu

Post to Instagram from Codex with Wahlu

Connect Codex to Wahlu once, then plan, draft and schedule posts for Instagram professional accounts (Business or Creator) 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 Instagram

  • Feed post

    One to 10 images or videos. Two or more make a carousel.

  • Reel

    One video, with a caption.

  • Story

    One image or video. Stories don't take a caption.

Ask Codex for Instagram posts

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

Example prompt

“Read the changes in this branch and write an Instagram caption for the launch. Use the screenshots in docs/launch as a carousel and hold it for review tomorrow at 9am.”

Example prompt

“Make a Reel draft from the demo video at the public link in the changes in this branch. Keep the caption under 300 characters and don't schedule it yet.”

Example prompt

“Check whether anything is already scheduled on Instagram this week before you draft a post about the changes in this branch.”

What Wahlu does on Instagram

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

Instagram settings on a draft

Post type
Feed post, Reel or Story.
Collaborators
Invite up to five accounts by their handle.
Trial Reel
Share a Reel with non-followers first, then share it to followers yourself or let Instagram decide based on how it performs.

Wahlu doesn't add a first comment, location or tagged people to Instagram posts.

The tool calls, in order

  1. 01

    list_targetsFinds the brand's connected Instagram 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 instagram_settings, such as the post type.

  4. 04

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

  5. 05

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

Instagram limits to know

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

Getting images and video to Instagram

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 Instagram.

  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 Instagram post, drafted by Codex.

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

Open WahluAll Codex options