Reference Implementation Architecture

MODIFIED Requirements

Requirement: Reference-only surfaces are explicit

Debugging, replay, trace, projection, and operator-control surfaces that are useful for the reference implementation but are not part of core PDPP SHALL be explicitly marked as reference-only.

Slack messages.resources scoped runs SHALL treat the scoped Slack source archive as a repair boundary. For those scoped repair runs, the Slack connector SHALL NOT filter scoped archive message rows by the saved messages.channel_last_ts cursor. Normal unscoped Slack runs SHALL continue to use per-channel message cursors for incremental emission.

Scenario: Scoped Slack repair emits historical holes

• WHEN a Slack messages.resources scoped run reads a scoped source archive containing a message row older than that channel's saved channel_last_ts
• THEN the connector SHALL emit that message row for retained-record ingest
• AND it SHALL advance the channel cursor to the maximum timestamp seen in the scoped archive

Scenario: Normal Slack incremental runs keep cursor filtering

• WHEN an unscoped Slack messages run has saved per-channel message cursors
• THEN the connector SHALL filter message rows using those per-channel cursors
• AND it SHALL NOT replay historical rows below the cursor as part of the normal incremental path