Equipping agents for the real world with Agent Skills
… At its simplest, a skill is a directory that contains a SKILL.md file . This file must start with YAML frontmatter that contains some required metadata: name and description . …
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Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks
Alignment Next-generation Constitutional Classifiers: More efficient protection against universal jailbreaks Jan 9, 2026 Read the paper Large language models remain vulnerable to jailbreaks—techniques that can circumvent safety guardrails and elicit harmful information. …
Scaling Managed Agents: Decoupling the brain from the hands
… When we initially put the brain in a container, it meant that many brains required as many containers. For each brain, no inference could happen until that container was provisioned; every session paid the full container setup cost up front. …
Introducing advanced tool use on the Claude Developer Platform
… Most beneficial when: Complex nested structures where valid JSON doesn't imply correct usage Tools with many optional parameters and inclusion patterns matter APIs with domain-specific conventions not captured in schemas Similar tools where examples clarify which one to use e.g., create ticket vs c… …