Get a Codex daily brief with Things 3 todos

A custom Things 3 MCP app loads in Claude or Codex; a scheduled morning brief checks email and suggests todos.

In short

What it does: A custom Things 3 MCP app loads in Claude or Codex; a scheduled morning brief checks email and suggests todos.

Agents: Claude, Codex · Category: Productivity & ops

Steps in brief:

  1. Build an MCP (with an MCP app UI) for your todo app, here Things 3.
  2. Schedule a morning daily brief in which Codex checks all your emails.
  3. Review the suggested todos in the conversation and add them.

Who made it: Martin Merschroth (X post, 19 Sep 2026) · source

Last updated · based on 336 use cases on agentsetups, each credited to its author.

by Martin Merschroth19 Sep 2026

Prompt for your agent

Goal: Turn my morning email into Things 3 todos automatically.
Setup: agents used in source: Claude, Codex; tools/MCPs stated: Things 3, MCP.
Steps:
1. Build an MCP (with an MCP app UI) for your todo app, here Things 3.
2. Schedule a morning daily brief in which Codex checks all your emails.
3. Review the suggested todos in the conversation and add them.
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: Martin Merschroth — https://x.com/majroth/status/2101366598766633425 (summarised from source; the source has no explicit step list)

Steps are our summary of the source (it has no explicit step list). Includes a “Based on” credit line.

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Agents, models and tools only what the source states

Agents
Claude Codex
Tools
  • Things 3
  • MCP

Sources & credit