The custom harness, owned compute and private data boundary depend on physical engineering as much as software. Here are the decisions behind the design—and how each must be demonstrated.
01 / ComputeConceptual design illustration
Fitting a model is only the beginning.
A model can fit in memory and still miss the response times a team needs. Concurrent agents add context, working memory and contention.
Size model-serving pools around memory residency, runtime compatibility and real workflows. Coordinate coding and reasoning services without treating the inter-node network as a substitute for the GPU fabric.
What proves the design +
Measure useful throughput, latency and concurrency with the selected models, context lengths and runtime.
Large GPU systems bring weight, airflow, cabling and access constraints. A rack that cannot be delivered or maintained is an unfinished design.
Retain supported server assemblies. Plan rails, load paths, cabinet containment, cable schedules and access for module replacement. Deliver and assemble around the actual building route.
Compute and cooling draw power together. Connector size alone says nothing about building capacity, starting current or protective coordination.
Meter total system input and define regional power-entry and distribution assemblies with separate protected branches. Include cooling and auxiliaries in the electrical budget.
What proves the design +
A qualified electrical designer releases the circuit and protection schedule from selected equipment data and the actual site.
Office air conditioning is not an assumed heat sink. Hot-weather duty, hose losses and a failed cooling module all change the operating envelope.
Contain server airflow and use three independently pumped cooling circuits with indoor sealed refrigeration and outdoor fluid coolers. Design for service access and controlled response to cooling loss.
05 / os8 & the custom harnessConceptual design illustration
Turn local models into enterprise work.
A capable model does not know your permissions, procedures or definition of a completed task. Those must be designed into the system around it.
os8 grounds durable agents in the user, environment and applicable constraints. Agents act, verify progress, retain useful experience and evaluate improvements locally. The custom harness connects this runtime to the firm, including Slack and email.
What proves the design +
Qualify each workflow against agreed outputs, access boundaries, recovery behavior and inspectable records.
06 / System integrationConceptual design illustration
The interfaces are part of the product.
Individually capable components do not automatically make a dependable enterprise system. Power, cooling, software and the site interact.
Define shared operating limits and independent protective functions. Factory-test the configuration, commission it onsite and hand over named service responsibilities.
What proves the design +
Demonstrate the complete system under representative workloads and faults before accepting the deployment.
Reference architecture under qualification. Design decisions and simulation results are not a claim that every subsystem has completed physical validation.
Conceptual service topology. Model choice and physical allocation depend on workload qualification.
Services exchange scoped requests and artifacts. That connection is distinct from the high-bandwidth GPU interconnect used within a model-serving node.
02 / Interfaces
Make dependencies visible.
Boundary
Review focus
Enterprise ingress
Authentication, source access and permission mapping.
Model services
Model/runtime compatibility, concurrency, context length and isolation.
Action execution
Scoped credentials, approval requirements and result recording.
Management
Administrative access, update path and recovery responsibilities.
Physical infrastructure
Power, heat rejection, monitoring and independent protective functions.
Calculations and simulations explore an assumed operating envelope.
03
Measured
Configuration-specific tests establish actual system behavior.
The reference design remains under qualification. No measured production service level is asserted here. A technical review should establish the configuration, assumptions and tests needed for the intended workload.
