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.
This method demonstrates how to activate Windows using PowerShell in administrator mode.
Open PowerShell as an administrator:
Win + S, type "PowerShell," then right-click on Windows PowerShell and select Run as administrator.Run the following command:
A pattern for building personal knowledge bases using LLMs.
This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.
Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.
Audit this entire codebase for materially useful simplifications in its data structures, state representation, control flow, algorithms, and ownership.
This is an audit-only exercise. Do not edit files, run tests, implement recommendations, commit, or push. Read-only inspection commands are allowed.
You are the coordinator. Continue until the complete codebase has been reviewed and the final audit is validated.
Inspect the repository and inventory every identifiable subsystem.
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| # Claude Code CLI Environment Variables | |
| # This file lists all environment variables used in v2.1.202 with explanations | |
| ## Anthropic API & Authentication | |
| ANTHROPIC_API_KEY - Primary API key for Anthropic's Claude API; used as an auth source (source "ANTHROPIC_API_KEY") when no OAuth token is configured | |
| ANTHROPIC_AUTH_TOKEN - Alternative bearer token for Anthropic services; sent as Authorization: Bearer and takes priority over ANTHROPIC_API_KEY, also used with gateway mode | |
| ANTHROPIC_BASE_URL - Custom base URL for the Anthropic API; overrides the default api.anthropic.com endpoint (a non-api.anthropic.com host marks the client as non-first-party) | |
| ANTHROPIC_BETAS - Comma-separated list of beta feature headers appended (trimmed, non-empty) to the internal beta flags on API requests | |
| ANTHROPIC_CUSTOM_HEADERS - Custom HTTP headers for API requests, parsed as newline-separated "Key: Value" pairs |