v2.1.0 — 6R Cycle Semantics

6R Cycle Semantics

• Clarified "Max 3 completed loops" → "Max 3 internal fix-verify cycles within a single 6R run"
• Added explicit FAIL recovery guidance

6V Routing

• PASS → skip 6R, CONDITIONAL PASS with 6V-A/B → run 6R, CONDITIONAL PASS with only 6V-C → skip 6R

Other

• 6V- prefix consistency across all skills, agents, and templates
• New operator checkpoint between Stages 1 and 2B for assumption review
• Stage skill updates: 5B, 6P, 6P-R, 6R
• Template updates: CLAUDE.md, execution-guide.md, API contracts