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Overview
Comment:feat(horizon): state the leaves rule's cost; prove the wire carries only hash and rule

A client that wants to merge across live branches offline should pick the leaves rule knowingly (HZ-3.1-2). The rule holds every descendant of where each childless check-in's history meets C's, which on a repository with old unmerged branches is nearly the whole history. clone and cone store --leaves now warn once on stderr, the flag help says so, and HorizonLeaves documents the cost for library callers.

HZ-3.4-2 asks that a horizon never be a count or a date on the wire. A case records the request cards of a horizon clone and pull under both rules and asserts one pragma of a full hash and a rule name; the CLI's clone refuses a name, and its store cone resolves a branch name to the full hash first.

Timelines: family | ancestors | descendants | both | trunk | feat/horizon-cones
Files: files | file ages | folders
SHA3-256: d7a8b71b9b4f96011a0d80ebaadd2fabc915c6a09b4f2b75577a7c52e50d3513
User & Date: [email protected] on 2026-10-22 22:07:31.000
Other Links: branch diff | manifest | tags
Context
2026-10-22
22:07
Merge branch 'wip/hz-small-rows' into feat/horizon-cones

HZ-3.1-2: the leaves rule's cost is stated where it is chosen. HZ-3.4-2: a horizon reaches the wire only as a full hash and a rule name. check-in: c79a113e0c user: [email protected] tags: feat/horizon-cones, trunk

22:07
feat(horizon): state the leaves rule's cost; prove the wire carries only hash and rule

A client that wants to merge across live branches offline should pick the leaves rule knowingly (HZ-3.1-2). The rule holds every descendant of where each childless check-in's history meets C's, which on a repository with old unmerged branches is nearly the whole history. clone and cone store --leaves now warn once on stderr, the flag help says so, and HorizonLeaves documents the cost for library callers.

HZ-3.4-2 asks that a horizon never be a count or a date on the wire. A case records the request cards of a horizon clone and pull under both rules and asserts one pragma of a full hash and a rule name; the CLI's clone refuses a name, and its store cone resolves a branch name to the full hash first. check-in: d7a8b71b9b user: [email protected] tags: feat/horizon-cones, trunk

21:38
docs(changelog): sparse stores rebuild check-in: e5cedd31cb user: [email protected] tags: feat/horizon-cones, trunk
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