Design a permissions model for connected tools in a multi-tenant product.

Instruction: Derive tenant identity from trusted authentication and enforce object access at every data operation.

Context: Prevent a multi-tenant assistant from reading or modifying another customer's records, even with a syntactically valid tool call.

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I would derive the principal and tenant from the authenticated request, then check operation permission and object-level access in the backend. A tool argument like tenant_id must never be the authority for switching tenants.

The host would expose only the capabilities relevant to the current workflow, but the server still...

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Your preparation path

Work through these questions in order. Read the answer aloud, then explain it in your own words.

1. Start with the foundations

Build the vocabulary and explain the core decisions.

  1. When should a model call a tool instead of answering from context? Free sample
  2. How would you explain MCP to a product engineer in one minute? Free sample
  3. What information should the orchestrator validate before executing a tool call? Free sample

2. Apply it to a real workflow

Practice diagnosis, validation, and everyday tradeoffs.

  1. Why do idempotency and retries matter more with AI-driven tool use? Free sample
  2. How do you keep permission boundaries clear when many tools share overlapping capabilities? Member answer
  3. A user revokes access to a connected app mid-session. How should the AI workflow behave? Member answer

3. Prepare for senior discussions

Explain failure boundaries, recovery, and production choices.

  1. Design a fallback strategy when tools are unavailable, degraded, or unauthorized. Member answer
  2. How do you implement MCP step-up authorization without losing scopes or retrying forever? Member answer
  3. An MCP request resumes after user confirmation. How would you validate its requestState? Member answer

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