Public changelog
Contract history for the almanack.dev MCP server, every tool-schema change Zevruna has observed, classified from the consumer's perspective.
90-day stability
quietsaferiskybreaking
Advisories
[safe] Tool calendar_periods was added. [safe] Tool sun_daylight was added. [risky] Description of add_to_date changed (46% word delta). [risky] Optional field on_error was added to add_to_date; may shift model behaviour. [risky] Optional…
Contract changelog
Every revision Zevruna has observed, classified from the consumer's side. Advisories above are the subset severe enough to publish.
validate_calendar_spec changed (20% word delta).sun_daylight changed (10% word delta).calendar_periods was added.sun_daylight was added.add_to_date changed (46% word delta).on_error was added to add_to_date; may shift model behaviour.steps was added to add_to_date; may shift model behaviour.ticks was added to add_to_date; may shift model behaviour.time was added to add_to_date; may shift model behaviour.date on add_to_date is no longer required.+ 36 more in this revision
Snapshot log
The hashes to pin against. Identical contracts hash identically.
| Observed | Contract hash | Tools |
|---|---|---|
| 2026-09-02 09:16 | 318b50670b66 | 15 |
| 2026-09-01 22:01 | 6105f70f6e80 | 15 |
| 2026-09-01 19:53 | fcb03b2b641e | 15 |
| 2026-08-31 06:06 | 0dffa9280b6b | 13 |
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/almanack.dev)