Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.77 Home All releases olderv2.1.76 v2.1.78newer
Claude Code v2.1.77

Plugin/Skill Manifest Validation

What

New validation system for skill, agent, and command frontmatter, plus hooks.json schema checking, with clear error and warning messages.

Details
  • Validates YAML frontmatter in .claude/skills/, .claude/agents/, .claude/commands/ markdown files
  • Checks description, name, and allowed-tools field types
  • Warns on missing frontmatter or missing description
  • Validates hooks.json against the Zod schema
  • Enhanced kebab-case enforcement: warns that Claude.ai marketplace sync requires kebab-case names
  • Prints validation results with clear indicators for errors and warnings
Evidence

Frontmatter validator (search for "No frontmatter block found. Add YAML frontmatter") and allowed-tools check (search for "allowed-tools must be a string or array of strings")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.77 →