Proposal

Why

Two CLI code paths currently derive date-only values by truncating a UTC ISO timestamp: archive directory prefixes and the created field in newly scaffolded change metadata. Near a local midnight boundary, these values can resolve to the previous or next calendar date instead of the date in the CLI process's effective local time zone.

What Changes

• Define CLI-generated date-only values as the calendar date in the effective local time zone of the Node.js process executing the CLI, formatted as YYYY-MM-DD.
• Generate CLI archive directory names from that local date.
• Record the same local date in the created field of newly created change metadata.
• Add regression coverage for a non-UTC local-date boundary.

Capabilities

New Capabilities

None.

Modified Capabilities

• cli-archive: archive target names use the CLI process's effective local calendar date.
• change-creation: newly created change metadata records the CLI process's effective local calendar date.

Impact

• Affected code: archive naming, change-creation metadata, and a shared date-only formatter.
• Affected tests: archive and change-creation coverage.
• Existing archive directories remain unchanged; the rule applies to newly generated names and metadata only.