Have Codex sign and return a PDF from your email

While driving, Codex pulled a PDF from email, verified the details, added his handwritten name and sent it back in 3 minutes.

by Diego | AI 🚀 - e/acc2 Sep 2026

Prompt for your agent

Goal: Return a signed document while I’m away from my computer.
Setup: agents used in source: Codex; tools/MCPs stated: email, PDF.
Steps:
1. Ask Codex to find the PDF in your email.
2. Have it verify the details.
3. Have it add your handwritten signature/name and send the completed PDF back.
Rules: ask me before anything irreversible (sending, posting, paying, deleting); don’t invent data, results or tools I haven’t given you; tell me what you couldn’t verify.
Based on: Diego | AI 🚀 - e/acc — https://x.com/diegocabezas01/status/2095145831942791263

Steps are from the source. Includes a “Based on” credit line.

I tried this

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Agents, models and tools only what the source states

Agents
Codex
Tools
  • email
  • PDF

Sources & credit