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Build an email scheduling bot with Claude Code

A copy-pasteable recipe for demo@yourdomain.com — an email address that joins scheduling threads, proposes meeting times, follows the back-and-forth, and emails an .ics calendar invite once everyone confirms. The whole thing runs on a single Cloudflare Worker plus a Claude Code session driving the conversation in real time.

This gist is meant to be dropped into a new Claude Code session as build context. By the end you will have:

• demo@yourdomain.com accepting inbound mail through Cloudflare Email Routing
• A Worker that parses MIME, persists each thread message to D1, and exposes a small HTTP API
• A local poller that streams new messages into the session via the Monitor tool
• A live agent loop that reads the thread, replies in-thread with proper threading headers, and attaches an RFC 5545 .ics on the final confirmation

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Wiring Up the Claude Code Telegram Plugin to a Group Chat

A step-by-step guide for connecting the Claude Code Telegram plugin to a Telegram group chat.

Prerequisites

• Claude Code installed and running
• The Telegram plugin installed (/install-plugin telegram or via the plugin marketplace)
• A Telegram bot token from @BotFather

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Comparison: Agent Browser Protocol vs Vercel agent-browser

Two browser automation solutions purpose-built for AI agents, both born in January 2026, taking radically different architectural approaches.

Overview

	Agent Browser Protocol (ABP)	Vercel agent-browser
Repo	theredsix/agent-browser-protocol	vercel-labs/agent-browser
Approach	Chromium fork with engine-level integration	Rust CLI wrapping a Playwright/Node.js daemon

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Four AI Dev Tools, One Codebase Deep-Dive

A quantitative and qualitative comparison of Fulcrum, Vibe Kanban, Auto-Claude, and OpenClaw

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The AI-assisted development tool space is exploding. In the span of a few months, multiple projects have emerged with overlapping but distinct visions for how developers should interact with AI coding agents. I took four of them — Fulcrum, Vibe Kanban, Auto-Claude, and OpenClaw — and put them under the microscope using scc for code metrics, git log for history, and manual code review for everything else.

What follows is a framework-driven comparison across eight dimensions, from raw LOC counts to architectural philosophy to "are they punching above their weight?"

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Citadel OOM Incident — 2026-02-09

Symptoms

• SSH to citadel (5.78.40.219) hung — TCP connected but no SSH banner returned
• Hetzner VNC console showed continuous OOM killer messages:

  Memory cgroup out of memory: Killed process XXXX (windmill)
  Memory cgroup out of memory: Killed process XXXX (uv)
  

• CPU pinned at ~1000-1500% (OOM kill/respawn loop)

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Datalake Explorer GPT - Instructions

You help users explore and analyze data from Augment Risk's CRM datalake. Use the queryDucklake action to run SQL queries (DuckDB dialect).

Behavior Guidelines

Be proactive, not inquisitive. Infer user intent from context and act on it. Do not bombard users with clarifying questions. Make reasonable assumptions and execute. If you're wrong, the user will guide or correct you. It's better to attempt something useful than to ask for permission.

Always check schema before querying. Before running any analytics query, first run DESCRIBE main.table_name for every table you plan to query or join. Column names and types vary - never assume. This prevents errors and ensures accurate results.

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Use Your ChatGPT Subscription for AI Coding Workloads

The Problem

You're paying for ChatGPT Plus/Pro ($20-200/month) AND buying OpenAI API tokens separately for AI-assisted coding. That's double-dipping.

The Solution

opencode-openai-codex-auth lets you authenticate OpenCode with your existing ChatGPT subscription, giving you access to GPT-5.x models for coding tasks without purchasing additional API credits.

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Build Unlimited AI Agents for $200/month

Bottom line: The Claude Max plan delivers $800-1,600+ worth of API tokens - and you can use it programmatically via the Agent SDK.

Plan	Monthly Cost	API Token Value	ROI
Pro	$20	~$40-80	2-4x
Max 5x	$100	~$200-400	2-4x
Max 20x	$200	~$800-1,600+	4-8x

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MCP-DSL Token Efficiency Experiment Results

Date: 2025-12-31 Budget Used: ~$5-10 (estimated from 2x ~20min A10G training runs + eval)

Summary

MCP-DSL demonstrates significant advantages over JSON-RPC for small model fine-tuning:

| Metric | MCP-DSL | JSON-RPC | Advantage |

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Resilient SSH Port Forwarding on macOS with launchd

A simple, robust way to maintain persistent SSH tunnels that automatically reconnect after network interruptions, sleep/wake cycles, or server restarts.

Overview

Instead of manually running SSH tunnels or using third-party tools like autossh, we use macOS's built-in launchd service manager. It handles:

• Automatic startup on login
• Automatic restart when the connection drops