Mark 5 features as MATCH: tool groups, session pruning, /think,
/verbose, typing indicators. Update scorecard (80/116 features),
remove completed Tier 1 section from remaining gaps.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add 8 new agent-callable tools (sessions.list/history/create/delete,
agents.list, message.send, cron.list/trigger) and sanitize tool names
at the API boundary (dots → underscores) to comply with Anthropic's
`^[a-zA-Z0-9_-]{1,128}` requirement. Reverse-maps sanitized names
back to internal names for hook callbacks and tool execution.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
William Valentin