Reduces token overhead of Dimension 8 and related agent additions by ~37%
with no behavioral change. Removes theory explanation, dead XML tags
(<manual>, <sampling_rate>), aspirational execution tracking, and
documentation-density prose from runtime agent bodies.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Adds automated feedback architecture research to gsd-phase-researcher,
enforces it as Dimension 8 in gsd-plan-checker, and introduces
{phase}-VALIDATION.md as the per-phase validation contract.
Ensures every phase plan includes automated verify commands before
execution begins. Opt-out via workflow.nyquist_validation: false.
Closes#122 (partial), related #117
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
