How to say “Politely refer to undefined relationship” professionally

Level 1: I appreciate you entrusting me with this, [Boss's Name]. Could we clarify how this aligns with my current role responsibilities, or if there's a specific project we should formally add this to for tracking purposes?

Level 2: Thanks for the heads-up on this, [Boss's Name]. To ensure optimal alignment with my established priorities, could we briefly discuss where this initiative fits within my current scope and what its key deliverables are?

Level 3: Understood, [Boss's Name]. I'll add this to my backlog, pending formal clarification of its strategic alignment and my designated RACI matrix assignment. We wouldn't want to disrupt any critical path deliverables without proper governance, would we?

Level 4: I need to respectfully clarify my capacity and role regarding this request, [Boss's Name]. My current scope of work does not encompass these types of tasks, and taking this on would directly impact [X priority project] and its deadlines.

Level 5: Am I your personal assistant now?

Level 1: Thank you for reaching out, [Client's Name]. To ensure all requests are tracked and prioritized effectively, could you please channel this through [Account Manager's Name/Project Lead] or our designated ticketing system?

Level 2: I appreciate you bringing this to my attention, [Client's Name]. For new requests that may extend beyond our established scope of work, it's best to loop in [Account Manager/Project Lead] so we can properly assess and integrate them into our project plan.

Level 3: Understood, [Client's Name]. I'll flag this internally for review against our current Statement of Work and the agreed-upon communication matrix. We wouldn't want to incur any unforeseen scope deviations or associated service charges without proper documentation, would we?

Level 4: I need to clarify that my direct responsibilities are limited to [specific agreed tasks/project phase], [Client's Name]. For all new requests or changes, please coordinate directly with [Account Manager's Name], as per our contractual agreement.

Level 5: Read the contract.

Level 1: Thanks for thinking of me for this, [Coworker's Name]. To ensure we're both aligned on our respective responsibilities, could we confirm which project or team this task is formally assigned to?

Level 2: I appreciate you flagging this, [Coworker's Name]. My current bandwidth is allocated to [X project]. Perhaps we can review the project's RACI chart or our team's task distribution to confirm the primary owner?

Level 3: Interesting initiative, [Coworker's Name]. I'll ensure this is documented in our shared task tracker, where the relevant stakeholders can then formalize the delegation process and assign appropriate resources, per established corporate guidelines. You've already submitted the formal request, correct?

Level 4: I need to clarify that this task falls outside my scope of responsibilities, [Coworker's Name]. My focus is on [X priority], and I cannot take on additional work without impacting those commitments.

Level 5: Not my circus, not my monkeys.