Public changelog
Contract history for the bay-run-mvp-zfmlsu2yla-uc.a.run.app MCP server, every tool-schema change Zevruna has observed, classified from the consumer's perspective.
90-day stability
quietsaferiskybreaking
Advisories
[risky] Description of run_pin changed (48% word delta). [safe] Field idempotency_key on run_pin is no longer required. [risky] Default of idempotency_key on run_pin changed unset → null.
[risky] Description of run_pin changed (28% word delta). [safe] Field max_price_usd on run_pin is no longer required. [risky] Default of max_price_usd on run_pin changed unset → null.
[safe] Field task_description on solve_task is no longer required. [safe] Field input on solve_task is no longer required. [risky] Default of input on solve_task changed unset → null. [risky] Default of task_description on solve_task…
[breaking] Tool run_bakeoff was removed. [breaking] Tool run_task was removed. [breaking] Tool verify_result was removed. [safe] Tool run_pin was added. [risky] Optional field content was added to solve_task; may shift model behaviour…
Contract changelog
Every revision Zevruna has observed, classified from the consumer's side. Advisories above are the subset severe enough to publish.
run_pin changed (6% word delta).run_pin changed (48% word delta).idempotency_key on run_pin is no longer required.idempotency_key on run_pin changed string → unset.idempotency_key on run_pin changed unset → null.run_pin changed (28% word delta).max_price_usd on run_pin is no longer required.max_price_usd on run_pin changed number → unset.max_price_usd on run_pin changed unset → null.task_description on solve_task is no longer required.input on solve_task is no longer required.input on solve_task changed unset → null.task_description on solve_task changed string → unset.task_description on solve_task changed unset → null.get_task_quote was removed.run_bakeoff was removed.run_task was removed.verify_result was removed.run_pin was added.content was added to solve_task; may shift model behaviour.my_examples was added to solve_task; may shift model behaviour.query was added to solve_task; may shift model behaviour.+ 3 more in this revision
task was added to get_task_quote; may shift model behaviour.run_bakeoff changed (51% word delta).field_strength was added to run_bakeoff output.next_call_grant was added to run_bakeoff output.request_hash was added to run_bakeoff output.task_family was added to run_bakeoff output.weak was added to run_bakeoff output.candidate_summary was added to run_bakeoff output.partial was added to run_bakeoff output.task_kind_inference was added to solve_task output.solve_task was added.get_task_quote changed (25% word delta).run_bakeoff changed (22% word delta).challenger_model was added to run_bakeoff; may shift model behaviour.author_claim was added to run_bakeoff output.candidate_roles was added to run_bakeoff output.challenger_bakeoff_quota was added to run_bakeoff output.challenger_gate was added to run_bakeoff output.+ 4 more in this revision
run_bakeoff was added.durable_free_key was added to get_task_quote output.durable_free_key was added to run_task output.durable_free_key was added to verify_result output.billed_price_usd was added to get_task_quote output.free_tier was added to get_task_quote output.price_label was added to get_task_quote output.Snapshot log
The hashes to pin against. Identical contracts hash identically.
| Observed | Contract hash | Tools |
|---|---|---|
| 2026-08-22 20:32 | b1d7941bc70b | 2 |
| 2026-08-21 21:03 | 8c6898306441 | 2 |
| 2026-08-21 16:59 | 28e61e0d3445 | 2 |
| 2026-08-21 02:46 | 2d7340e4ea8b | 2 |
| 2026-08-20 19:38 | e149be85ef70 | 2 |
| 2026-08-19 23:18 | 466036506870 | 5 |
| 2026-08-19 17:11 | fe6c80dcf06d | 5 |
| 2026-08-18 20:52 | 568e89e7c4cc | 5 |
| 2026-08-18 05:37 | 8afbe5004584 | 5 |
| 2026-08-18 01:29 | 45cf34e0ac06 | 4 |
| 2026-08-17 20:25 | 4fea200a2652 | 3 |
| 2026-08-17 06:08 | 280485ecb71e | 3 |
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/bay-run-mvp-zfmlsu2yla-uc.a.run.app)