Reconstructed from Danny Postma's talk How I Built My Own AgentOS on Claude's Agent SDK (So You Can Too) (2026). This document is both a product spec for a human and an implementation prompt for an AI coding agent. Build exactly this system. Do not invent features that are not specified here.
Role contracts and prompts in this file are reconstructed from the talk, not his verbatim files. Mark every reconstructed prompt in code comments and docs as such.
Verified Spec-Driven Development (VSDD) is a unified software engineering methodology that fuses three proven paradigms into a single AI-orchestrated pipeline:
| name | codex-review |
|---|---|
| description | Send the current plan to OpenAI Codex CLI for iterative review. Claude and Codex go back-and-forth until Codex approves the plan. |
| user_invocable | true |
Send the current implementation plan to OpenAI Codex for review. Claude revises the plan based on Codex's feedback and re-submits until Codex approves. Max 5 rounds.
Companion prompts for the video: OpenClaw after 50 days: 20 real workflows (honest review)
These are the actual prompts I use for each use case shown in the video. Copy-paste them into your agent and adjust for your setup. Most will work as-is or the agent will ask you clarifying questions.
Each prompt describes the intent clearly enough that the agent can figure out the implementation details. You don't need to hand-hold it through every step.
My setup: OpenClaw running on a VPS, Discord as primary interface (separate channels per workflow), Obsidian for notes (markdown-first), Coolify for self-hosted services.
This is the full Cloud Functions code explained in my blog post: How to schedule a Cloud Function to run in the future (in order to build a Firestore document TTL)
| #!/bin/bash | |
| # Add to instance metadata with `gcloud compute instances add-metadata \ | |
| # instance-name --metadata-from-file startup-script=idle-shutdown.sh` and reboot | |
| # NOTE: requires `bc`, eg, sudo apt-get install bc | |
| # Modified from https://stackoverflow.com/questions/30556920/how-can-i-automatically-kill-idle-gce-instances-based-on-cpu-usage | |
| threshold=0.1 | |
| count=0 | |
| wait_minutes=60 | |
| while true |
| # [<tag>] (If applied, this commit will...) <subject> (Max 72 char) | |
| # |<---- Preferably using up to 50 chars --->|<------------------->| | |
| # Example: | |
| # [feat] Implement automated commit messages | |
| # (Optional) Explain why this change is being made | |
| # |<---- Try To Limit Each Line to a Maximum Of 72 Characters ---->| | |
| # (Optional) Provide links or keys to any relevant tickets, articles or other resources | |
| # Example: Github issue #23 |
| // This function converts the string to lowercase, then perform the conversion | |
| function toLowerCaseNonAccentVietnamese(str) { | |
| str = str.toLowerCase(); | |
| // We can also use this instead of from line 11 to line 17 | |
| // str = str.replace(/\u00E0|\u00E1|\u1EA1|\u1EA3|\u00E3|\u00E2|\u1EA7|\u1EA5|\u1EAD|\u1EA9|\u1EAB|\u0103|\u1EB1|\u1EAF|\u1EB7|\u1EB3|\u1EB5/g, "a"); | |
| // str = str.replace(/\u00E8|\u00E9|\u1EB9|\u1EBB|\u1EBD|\u00EA|\u1EC1|\u1EBF|\u1EC7|\u1EC3|\u1EC5/g, "e"); | |
| // str = str.replace(/\u00EC|\u00ED|\u1ECB|\u1EC9|\u0129/g, "i"); | |
| // str = str.replace(/\u00F2|\u00F3|\u1ECD|\u1ECF|\u00F5|\u00F4|\u1ED3|\u1ED1|\u1ED9|\u1ED5|\u1ED7|\u01A1|\u1EDD|\u1EDB|\u1EE3|\u1EDF|\u1EE1/g, "o"); | |
| // str = str.replace(/\u00F9|\u00FA|\u1EE5|\u1EE7|\u0169|\u01B0|\u1EEB|\u1EE9|\u1EF1|\u1EED|\u1EEF/g, "u"); | |
| // str = str.replace(/\u1EF3|\u00FD|\u1EF5|\u1EF7|\u1EF9/g, "y"); |
| import { createCipheriv, createDecipheriv, randomBytes } from "crypto"; | |
| const ENCRYPTION_KEY: string = process.env.ENCRYPTION_KEY || ""; // Must be 256 bits (32 characters) | |
| const IV_LENGTH: number = 16; // For AES, this is always 16 | |
| /** | |
| * Will generate valid encryption keys for use | |
| * Not used in the code below, but generate one and store it in ENV for your own purposes | |
| */ | |
| export function keyGen() { |
