Public changelog
Contract history for the quantum-expectations.com MCP server, every tool-schema change Zevruna has observed, classified from the consumer's perspective.
90-day stability
quietsaferiskybreaking
Advisories
[breaking] Type of distanceSurfaceCode on compute_expectation changed integer → number. [risky] Description of compute_required_error_rate changed (39% word delta). [risky] Description of list_hardware_timings changed (51% word delta).
Contract changelog
Every revision Zevruna has observed, classified from the consumer's side. Advisories above are the subset severe enough to publish.
list_quops_scores was added.compute_expectation changed (22% word delta).connectivity was added to compute_expectation; may shift model behaviour.list_current_quantum_computers changed (52% word delta).resource://quantum-expectations/quops-scores was added.list_qldpc_codes changed (28% word delta).bb-288-12-18 added to errorCorrectionCode on compare_hardware_scenarios.list_qldpc_codes changed (46% word delta).distanceSurfaceCode on compare_hardware_scenarios changed integer → number.distanceSurfaceCode on compute_expectation changed integer → number.compute_required_error_rate changed (39% word delta).list_hardware_timings changed (51% word delta).list_example_algorithms changed (57% word delta).resource://quantum-expectations/example-algorithm-provenance was added.Snapshot log
The hashes to pin against. Identical contracts hash identically.
| Observed | Contract hash | Tools |
|---|---|---|
| 2026-09-16 09:11 | 3976da9f0659 | 13 |
| 2026-09-04 12:57 | 647f7b39dfdb | 12 |
| 2026-09-04 09:52 | dd28f7ed7fbd | 12 |
| 2026-09-03 17:33 | efe61700ed36 | 12 |
| 2026-09-02 20:46 | d8da1f43f537 | 12 |
| 2026-08-24 18:43 | aefa807b86d7 | 12 |
| 2026-08-12 21:37 | dbfc14a69f5a | 12 |
Maintainer badge
Free forever for open-source maintainers. It reports what Zevruna actually observed, a green badge means no breaking change in ninety days, and it says so honestly when a server has never been polled.
[](https://zevruna.com/servers/quantum-expectations.com)