Complete procedures with a way back.

Build a runnable native OpenAI Responses and Claude Messages router for an explicitly limited non-streaming text contract, with strict unsupported-feature rejection, provider-specific adapters, durable turn idempotency, native evidence, sanitized errors, timeout reconciliation, live parity fixtures, tenant canaries, and rollback without replay.

Build an asynchronous job service with durable state, background Responses, signed and deduplicated webhooks, polling reconciliation, cancellation, status pages, retry classification, dead-letter recovery, and release-safe observability.

Create a deterministic booking service that returns Google Calendar availability in an explicit IANA time zone, rejects DST gaps and overlaps, proposes an exact appointment without writing, requires a short-lived user confirmation, rechecks conflicts under a serialized lock, creates one idempotent private event, and applies the same proposal/confirmation discipline to cancellation.

Build a bounded Responses API agent whose strict function calls are treated as proposals, whose deterministic state and policy select eligible tools, whose consequential actions require exact human approval, and whose adapters use durable idempotency, effect-aware retries, deadlines, safe outputs, correlated audit and full-bundle rollback.

Build a pinned ansible-core 2.21 control environment, authenticated SSH inventory, exact roles and collections, named Vault IDs, least-privilege become, check/diff gates, rolling deployment, idempotency proof, and rollback.

Connect models to real capabilities with strict schemas, deterministic policy, human approval, idempotent execution, bounded retries and complete audit evidence.