Codex for YouTube: Explain an API in a Short

Codex for YouTube

Developer-relations teams know that a 40-second demo of one API call reaches people that a documentation page never will. The cost is a script, a recording and an upload for every feature, and the documentation team already wrote most of the script as a code example. Codex can reuse that example, run it to confirm it still works and phrase it as a spoken explanation. This page follows a developer-relations engineer at an API company: what Codex does with the example, why running it matters before filming, how the draft is created and where the recording and the approval remain with you.

Example: a payments API explains idempotency keys

Imagine a payments company whose docs include a ten-line example that shows how an idempotency key prevents double charges. The developer-relations engineer asks Codex to read the example and run it against the test environment. Codex confirms that the second call returns the same result and writes a 45-second script: the double-charge problem, the one-line fix, the result on screen. It proposes three titles under 100 characters. She records the terminal, adds the clip to the Tareno library, and Codex finds it with list_media and saves the draft through create_drafts. She requests Thursday 14:00 in Europe/Dublin, which waits as a pending action until she approves it.

Step by step

1. 01

   Connect Codex to Tareno

   Add Tareno as a remote MCP server with the Codex command line and sign in with OAuth, as described on the Codex hub page. A ChatGPT installation does not carry over to Codex.

2. 02

   Point Codex at the example

   Name the documentation file or the snippet. Ask Codex to run it against your test environment and report what it printed, since a script about code that does not run damages trust.

3. 03

   Write the script around what is on screen

   Ask for a spoken script of about 45 seconds that matches the terminal output step by step, so the voiceover and the screen agree.

4. 04

   Record the demo yourself

   Codex cannot record. Capture a vertical clip of up to 60 seconds, check that the frame shows no keys or account IDs and add it to your Tareno library.

5. 05

   Save the draft

   Codex finds the clip with list_media and saves the title and the file as a draft through create_drafts for your channel. Watch the clip next to the script in Tareno.

6. 06

   Request the slot and approve it

   Give a date, a time and an IANA time zone. The request becomes a pending action; you approve it in the dashboard, and Codex can read the result with get_action_status.

Prompts to copy

Read docs/idempotency.md and run the example in the code block against the test environment. Report exactly what each call printed, and tell me if the documented behavior and the real output differ in any way.

Write a 45-second spoken script for a vertical screen recording of that example: the double-charge problem, the one-line fix and the result on screen. Match each sentence to a line of the terminal output, and give me three titles of at most 100 characters.

Use Tareno to find the file [idempotency-demo.mp4] in my media library and save it as a YouTube draft for [channel name] with title option [2]. Tell me if the clip is longer than 60 seconds or not vertical, and do not schedule anything yet.

Ask Tareno to schedule draft [draft ID] for [Thursday 14:00] in the [Europe/Dublin] time zone. Return the pending action ID and tell me clearly that the Short is not scheduled until I approve it in the Tareno dashboard.

Mistakes to avoid

• Filming an example without running it. If the call fails on camera, the Short becomes a bug report with your name on it.
• Narrating faster than the terminal prints. Write the script to the timing of the output, not the other way round.
• Using a real key in the demo. Use a test key that you rotate afterwards, and check the frame for it.
• Packing three features into 45 seconds. One call, one result, one sentence of context is enough for a Short.