Public changelog

engine-production-3bdc.up.railway.app

Contract history for the engine-production-3bdc.up.railway.app MCP server, every tool-schema change Zevruna has observed, classified from the consumer's perspective.

90-day stability

quietsaferiskybreaking

4Breaking · 90d
4Advisories
11Snapshots kept
2026-08-21Last observed

Advisories

ZV-2026-0250 · 2026-08-21breaking

engine-production-3bdc.up.railway.app: New required field idempotency_key on create_checkout; requests without it will fail.

[risky] Description of create_checkout changed (57% word delta).

ZV-2026-0247 · 2026-08-21breaking

engine-production-3bdc.up.railway.app: Type of requested_format on research_hook_evidence changed string → unset.

[risky] Optional field formats was added to research_hook_evidence; may shift model behaviour. [risky] Optional field requested_count_v2 was added to research_hook_evidence; may shift model behaviour. [risky] Optional field schema_version…

ZV-2026-0036 · 2026-08-14breaking

engine-production-3bdc.up.railway.app: New required field beta_access_code on signup; requests without it will fail.

[safe] Description of add_credits changed (19% word delta). [risky] Description of create_checkout changed (46% word delta). [risky] Field request_limit was added to get_account output. [risky] Field requests_remaining was added to…

ZV-2026-0032 · 2026-08-14breaking

engine-production-3bdc.up.railway.app: Type of minimum_acceptable_count on research_hook_evidence changed integer → unset.

[risky] Description of research_hook_evidence changed (25% word delta). [risky] Default of allow_partial on research_hook_evidence changed true → false. [risky] Default of minimum_acceptable_count on research_hook_evidence changed 1 →…

Contract changelog

Every revision Zevruna has observed, classified from the consumer's side. Advisories above are the subset severe enough to publish.

2026-08-21 16:55safe
2026-08-21 03:35breaking
2026-08-21 02:33breaking
2026-08-20 01:07risky
2026-08-15 03:01risky
2026-08-14 23:02risky
2026-08-14 19:01breaking

+ 13 more in this revision

2026-08-14 15:00breaking
2026-08-13 16:01risky

+ 4 more in this revision

Snapshot log

The hashes to pin against. Identical contracts hash identically.

ObservedContract hashTools
2026-08-21 16:5566836c4051e645
2026-08-21 05:395281a88ae61044
2026-08-21 03:353dca7bc5baee44
2026-08-21 02:3358e82da3164f44
2026-08-20 01:0713bd00846ef644
2026-08-15 03:010d95fe34820144
2026-08-14 23:024077713db1d744
2026-08-14 19:01f41bb3cf900444
2026-08-14 15:00f7302c0c2f0a44
2026-08-13 16:019e8f5bfa68dd44
2026-08-12 21:33c93532fa7a6e43
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Contract status for engine-production-3bdc.up.railway.app

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