v0.6.6 — sub-agents inherit the parent's full tool registry,
auto-approve, respect a depth cap, and propagate cancellation.
Adds optional cwd to agent_spawn for parallel-worktree dispatch.
Schema-ready for roles (full library lands in 0.6.7).
Changes:
- New ToolRegistryBuilder::with_full_agent_surface(...) shared by parent and child
- SubAgentToolRegistry::new refactored to use shared builder; per-type
allowlist becomes advisory
- SubAgentRuntime gains auto_approve, spawn_depth, max_spawn_depth, cancel_token
- Depth check at spawn entry; cancellation cascade via CancellationToken::child_token()
- <deepseek:subagent.done> sentinel emitted on child completion
- cwd: Option<PathBuf> on agent_spawn with workspace-boundary validation
- Stream wall-clock cap bumped to 30 min (was 300s)
- max_spawn_depth configurable via EngineConfig (default 3)
- Version bump to 0.6.6
Closes#99.
Hunter Bown
d4b9ccfdb3