spawn

# /hub:spawn — Launch Parallel Agents Spawn N subagents that work on the same task in parallel, each in an isolated git worktree. ## Usage ``` /hub:spawn # Spawn agents for the latest session /hub:spawn 20260317-143022 # Spawn agents for a specific session /hub:spawn --template optimizer # Use optimizer template for dispatch prompts /hub:spawn --template refactorer # Use refactorer template ``` ## Templates When `--template <name>` is provided, use the dispatch prompt from `references/agent-templates.md` instead of the default prompt below. Available templates: | Template | Pattern | Use Case | |----------|---------|----------| | `optimizer` | Edit → eval → keep/discard → repeat x10 | Performance, latency, size reduction | | `refactorer` | Restructure → test → iterate until green | Code quality, tech debt | | `test-writer` | Write tests → measure coverage → repeat | Test coverage gaps | | `bug-fixer` | Reproduce → diagnose → fix → verify | Bug fix with competing approaches | When using a template, replace all `{variables}` with values from the session config. Assign each agent a **different strategy** appropriate to the template and task — diverse strategies maximize the value of parallel exploration. ## What It Does 1. Load session config from `.agenthub/sessions/{session-id}/config.yaml` 2. For each agent 1..N: - Write task assignment to `.agenthub/board/dispatch/` - Build agent ...