Technical Deep Dives

DeepMind's Delegation Capability Tokens paper (arXiv) is the most important agent security paper since the MCP specification. It formally solves the delegation problem: how do agents safely give other agents scoped permissions? The cryptographic caveat system enables least-privilege chains that degrade gracefully. If you're building multi-agent systems, this is required reading.

Chain-of-Draft prompting (arXiv) — a technique achieving 70-90% token reduction compared to Chain-of-Thought with comparable reasoning quality. The idea: instead of "think step by step," prompt "write only the minimum draft for each reasoning step." Each step uses max 5 words. Simple, effective, and immediately applicable to any LLM prompt that currently uses CoT.

NIST Agent Identity Concept Paper — The first formal government standard proposal for AI agent identity. Covers identification, authorization, access delegation, and audit logging. Comments open until April 2. This will become the compliance baseline for regulated industries deploying agents.