Models are non-authoritative components, never the system of record.
// TECHNICAL VIEW
Architecture for inspectable AI operations.
We treat foundation models as probabilistic reasoning components embedded inside deterministic, permissioned, observable software systems. The engineering problem is not making a chatbot sound confident. It is controlling state, evidence, side effects, and operator trust.
workflow.run(input) |> resolve_permissions() |> retrieve_evidence(scope) |> model_infer(context) |> validate_schema() |> apply_policy() |> queue_or_execute() |> emit_trace()
typed boundary
evidence required
side effects gated
// SYSTEM INVARIANTS
The model is not the architecture.
A production AI workflow needs clear boundaries around authority, state, evidence, tools, and action. We design those boundaries first.
Tool calls are typed, permissioned, logged, and constrained by explicit policy.
State transitions are inspectable before any consequential action is committed.
Generated outputs carry evidence references, uncertainty labels, and failure context.
// ENGINEERING SURFACES
What has to be engineered around the model.
The valuable work is in the control plane: orchestration, grounding, tools, policy, evaluation, and traces.
Orchestration boundary
LLM calls sit behind deterministic application logic, not inside an opaque agent loop. The workflow owns state, routing, retries, idempotency, and escalation.
Grounding and provenance
Retrieval is scoped to the task, source permissions, freshness, and citation requirements. Unsupported claims are treated as defects, not copy problems.
Permissioned tools
External actions are mediated through narrow tool interfaces with least-privilege credentials, schema validation, dry-run paths, and audit events.
Policy gates
Risk classes determine when the system can draft, queue, reject, require approval, or stop. Human review is a state transition, not a UI afterthought.
Evaluation harness
Golden cases, adversarial inputs, regression suites, and task-specific rubrics test behavior before a workflow is trusted in production.
Runtime observability
Every run should be traceable across prompt inputs, retrieved context, tool decisions, policy checks, latencies, errors, and reviewer actions.
// INSPECTION PLANE
Engineers should be able to replay the run.
A useful AI system leaves behind enough execution context to debug behavior without guessing: prompt inputs, retrieved sources, tool payloads, validation results, policy decisions, human overrides, and final side effects.
run_7f31c92customer, invoice, job-notestruerequires_approvalqueued, not executed// FAILURE MODE DESIGN
Failure is a first-class interface.
The system should know how to be uncertain, refuse, defer, escalate, or ask for review. That behavior has to be specified, tested, and visible.
Require evidence references or return insufficient context.
Surface recency, conflict, and confidence instead of resolving silently.
Use dry-run, approval gates, idempotency keys, and scoped execution.
Pin eval cases, monitor distributions, and review regressions before rollout.
Enforce source ACLs before retrieval and before generation.
Design review surfaces that show why the system is uncertain.
Typed tools
State machines
Policy gates
Distributed traces
// TECHNICAL REVIEW
Bring the workflow, constraints, and systems of record.
We will discuss the control boundary, tool surface, evaluation plan, and failure modes before recommending a build path.
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