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01 ·Agents·FREE·11 min read MCP and Tool Protocols — The Standard That Connects an Agent's Hands When an LLM touches your calendar or your database, what is actually wired to what? From what a tool call really is, to the N×M problem MCP solves, to designing tool definitions, to the security boundary you cannot design around — starting from zero. 02 ·Networking·FREE·11 min read From TCP to QUIC — Reinventing Reliable Communication The internet is built on a foundation that makes no promise of delivery. This piece starts from zero: how TCP manufactures reliability out of sequencing, retransmission and congestion control, why HTTP/2 hit a wall, and why QUIC deliberately rebuilt all of it on top of UDP.