ca-pi 0.20.0

[0.20.0] - 2026-10-17

Added

• SMARTS is now the six-lens design-quality rubric for material engineering solution choices, not only architectural variance. Workflows pick a depth (scan, comparison or delegated decision); SMARTS itself grants no approval and is not a command.
• A fifth verdict, Unknown, records missing evidence with its missing observation and whether it is decision-critical. A decision-critical Unknown blocks a strong recommendation and the selection of the option that carries it, and never stands in for user approval, a prerequisite or security authority. The engine validates the smarts-plan-method/0.2.0 record while historical 0.1.0 receipts keep their four-verdict contract.
• SMARTS runs only where a material choice exists: brainstorming compares approaches when two or more are materially plausible (a single approach gets one line and no table), the /feature small lane scans only a material choice, /fix compares remediation strategies only after root cause, and refactor compares only distinct strategies. Writing-plans routes undecided design choices back to brainstorming, and verification checks the change against a recorded rationale for material invalidation only.
• Specs carry a concise SMARTS design rationale (SEC-SMARTS), and the per-lens historical detail loads lazily from includes/smarts/lenses.md.