Claude Code Skill
Opus 4.8 research-preview capability: orchestration scripts fan out background subagents (up to 16 concurrent / 1000 total per run). The plan lives in script variables off your main context, and runs resume after interruption. Trigger via 'workflow' in a prompt, /effort ultracode, /batch, or /deep-research.
Vexilo is the missing index for Claude Code — 31 agents, 125 commands, 123 skills and more, organized by scenario. Browse free; unlock search, filters and one-click CLAUDE.md export with a one-time $19 licence.