6e3dfaaefc
Commands: add `shell` frontmatter field (bash/powershell), update /fast to /fast [on|off], bump to 12 fields. Skills: add `shell` frontmatter field, bump to 12 fields. Subagents: add `initialPrompt` frontmatter field, bump to 16 fields. Settings: add WebFetch and MCP permission rules for workflow domains. Changelogs: append v2.1.84 entries for commands, skills, subagents, concepts, and development workflows. Co-Authored-By: Claude <noreply@anthropic.com>