[TheGreatAxios]

Summary

• Route questions by evidence: answer directly when context supports it, investigate bounded unknowns, delegate implementation
• Forbid guessing unknown facts to avoid a spawn and split explanation from implementation
• Preserve specialist ownership and permission boundaries with no new routing subsystem

Verification

• bun run check passes including the full guarded suite
• Routing tests fail without the new guidance and pass with it
• Live-model improvement measurement remains pending on the collaboration eval lane

Fixes CL-9922

[linear-code]

CL-9922

[TheGreatAxios]

Closed per operator triage decision — Linear issue being canceled; content superseded or deprioritized.