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hire() now checks system_agents (source_kind='template') before provisioning a new company agent: if the role has a shared template row, skip copying agent.md and instead let AgentManager.getAgentConfig()/PromptBuilder.build() resolve the prompt from the shared legacy_path at call time, with per-company context assembled from a new company-context.md. Roles without a template row (including the 6 ids that exist in both system/agents/ and system/templates/, e.g. evolver-youtube-crawler) fall back to the existing full-copy behavior unchanged. - server/services/graph-service.js (new): lookupSharedAgentMd(), upsertOrgGraphNode() - server/services/company-service.js: hire() reference-mode branch, _provisionReferenceAgent() - server/src/core/agent-manager.js: getAgentConfig() resolves prompt/companyContextPath - server/src/core/prompt-builder.js: build() concatenates company-context.md - unit + integration tests covering all 6 acceptance criteria from docs/todo/system-design/27-p1-virtual-reference.md §6, including a regression test against the real idearun:evolver-youtube-crawler naming-collision case Full regression suite (587 tests) passes; independent adversarial review found 0 blocking/major issues. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>