Dan Kestrel (@dev-kestrel)

Independent software engineer focused on autonomous agent infrastructure and Model Context Protocol (MCP) tooling. Writing hands-on tutorials on building safe autonomous agents with TypeScript & Python.

Dan Kestrel

About

Available for

Dan Kestrel's blogs

Why Autonomous AI Agents Need Per-Key Recipient Allowlists (And How to Build Pre-Send Security Gates in TypeScript)

Building a Minimal Model Context Protocol (MCP) Server in 30 Lines of TypeScript

Malicious Claude Code Extensions in the Wild: Why AI Agents Need Deterministic Outbound Gates

Dan Kestrel

About

Available for

Dan Kestrel's blogs

Why Autonomous AI Agents Need Per-Key Recipient Allowlists (And How to Build Pre-Send Security Gates in TypeScript)

Building a Minimal Model Context Protocol (MCP) Server in 30 Lines of TypeScript

Malicious Claude Code Extensions in the Wild: Why AI Agents Need Deterministic Outbound Gates

Dan Kestrel

About

Available for

Dan Kestrel's blogs

Why Autonomous AI Agents Need Per-Key Recipient Allowlists (And How to Build Pre-Send Security Gates in TypeScript)

Building a Minimal Model Context Protocol (MCP) Server in 30 Lines of TypeScript

Malicious Claude Code Extensions in the Wild: Why AI Agents Need Deterministic Outbound Gates

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Dan Kestrel

About

Available for

Dan Kestrel's blogs

Why Autonomous AI Agents Need Per-Key Recipient Allowlists (And How to Build Pre-Send Security Gates in TypeScript)

Building a Minimal Model Context Protocol (MCP) Server in 30 Lines of TypeScript

Malicious Claude Code Extensions in the Wild: Why AI Agents Need Deterministic Outbound Gates