v0.16.4

Changed

• Update bundled @agwab/pi-subagent to 0.7.2.
• Accept max as a workflow thinking level in specs, agent frontmatter, /workflow run and /workflow dynamic --thinking, workflow_dynamic, dynamic ctx.agent(), and Custom profiles. max is offered only for models that map it and requires Pi 0.80.6 or newer.
• The built-in Codex High profile now uses max thinking for verification stages on openai-codex/gpt-6.1-sol.

Compatibility

• No public API or Node.js support changes. Saved Codex High selections use max for verification on the next run; a model that does not offer max still blocks with an explanation instead of being clamped.