Doc-grounded plan for the five new-functionality items greenlit after
checking the "seven steering mechanisms" framing against live CC docs
(2026-06-19): A durability/compaction findings, B load-pattern token
accounting, C output-style scanner, D mechanism-fit heuristic, E
agent-listing cost + plugin-agent dead-config.
Includes a full verification log (CONFIRMED/REFUTED/UNVERIFIED per claim
+ source), dependency graph, phased rollout (v5.5/v5.6/v5.7), testable
acceptance criteria, and open decisions. PLAN only — each feature awaits
its own GO. No code.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ter3E2JSi1Khgmuf2kady8