Instant, synchronous engineering review of a physical requirement — nothing is submitted or stored. Purpose prose is preserved as intent but is not silently converted into loads, geometry, environments, interfaces, or acceptance criteria. The versioned engineering_evaluation receipt lists canonical paths and exact checks run, reports not_evaluated when none ran, and denies engineering-validation, certification, physical-truth, supplier-acceptance, and fabrication authority. Its finding-penalty score is not engineering soundness. Deterministic checks: material identification with handbook-typical properties (density, stiffness, yield, service temperature), explicit rectangular beam deflection, nominal bending stress, and nominal transverse shear with requester-defined acceptance criteria, material/process compatibility, tolerance-vs-process reality, quantity economics (e.g. tooling amortization), environment fit (UV, saltwater, food contact, temperature, medical), flexibility fit, post-processing validity, design-file format fit, and specification completeness. Every matched material reference identifies the current table as an uncited compilation and explicitly denies source verification, exact-state verification, design-allowable use, and simulation eligibility. A criterion that depends on that reference remains not_evaluated; its numerical comparison is reference_only, never a pass, failure, or blocker. Every supplied limit or strength basis is labeled requester_assertion, and every criterion verdict is explicitly conditional on declared inputs and the bounded model—not engineering validation or design certification. Returns findings ranked blocker/warning/info, two readiness scores, and a deterministic clarification_plan: compact next_fields, visible remaining_fields, optional CAD accelerators, an intent-only resolution handoff, next_call with the recommended exact MCP/REST continuation, and continuation_options for every operation explicitly eligible from a complete specification. Examples are shapes, never invented defaults. For a decomposed design, send specification.assembly with parts and interfaces: a2a2p then checks galvanic pairing and interface fit across parts, which a single-part review cannot, and prices each part separately. Two or more explicitly declared parts always classify as assembly_or_system and can never become quote_ready as one part, regardless of purpose wording or top-level part fields. Undeclared interfaces are unchecked — nothing is inferred. CHECK intake_classification first. a2a2p reviews one manufacturable part at a time; a request naming a behaviour rather than an object ("a device that detects and removes debris") is classified capability_concept and redirected to decomposition, because no material or tolerance can be derived from it. The classification is advisory, never blocks, and defers to any supplied specification. READ resolution_readiness, not quote_readiness, while you are still answering questions. quote_readiness is supplier-facing and stays capped by material/process/dimensions/tolerance that a2a2p derives for you, so it cannot reach quote_ready from intent alone however much you supply. resolution_readiness measures only what the requester owns and reaches ready_to_resolve once you have supplied enough to derive a specification — which is not a supplier quote. completeness.awaiting_requester and completeness.derivable_by_resolution say which fields are whose. Accepts the same input as request_physical_solution (structured intent/specification or legacy flat fields). Forward-compatible fields remain accepted, but uninterpreted_fields names every supplied path in the declared review scope whose value did not influence deterministic engineering checks, uses bounded and privacy-safe RFC 6901 JSON Pointers, caps unqualified ready grades, and provides non-inferential repair guidance; never read HTTP success alone as proof that every field was understood. For intent_only, complete requester context leads to submit_for_specification_resolution; for a supplied specification, apply only facts you know, re-review until quote_ready, then submit if a durable resolution is useful.
