Context: System Events

Terms describing Spec Kitty's append-only event model, replay behavior, and system-level event types.

Event Envelope

Definition	Standard wrapper for an emitted event, including identity, ordering, and payload fields.
Context	System Events
Status	canonical
Applicable to	1.x, 2.x
Common fields	event_id, event_type, aggregate_id, lamport_clock, payload

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Glossary Evolution Log

Definition	Append-only sequence of glossary-related events that records candidate extraction, semantic checks, clarifications, and sense updates.
Context	System Events
Status	canonical
Applicable to	1.x, 2.x
Related terms	Semantic Check, Clarification Prompt

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Glossary Scope

Definition	Bounded semantic scope used for term/sense resolution.
Context	System Events
Status	canonical
Applicable to	1.x, 2.x
Allowed values	spec_kitty_core, team_domain, audience_domain, mission_local

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Semantic Check Evaluation

Definition	Deterministic pre-generation evaluation of extracted terms against active glossary scopes.
Context	System Events
Status	canonical
Applicable to	1.x, 2.x
Block rule	Unresolved high-severity conflicts block generation

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Replay

Definition	Reconstructing effective glossary state and decisions from canonical append-only events.
Context	System Events
Status	canonical
Applicable to	1.x, 2.x
Invariant	No side-channel state may be required for correctness

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Telemetry (Out of Scope for This Slice)

Definition	Optional usage/cost analytics and operational observability fields layered on top of core event contracts.
Context	System Events
Status	candidate
Applicable to	1.x, 2.x
Note	Not required for glossary semantic integrity in this 2.x adoption slice

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Dossier Event

Definition	An event emitted during dossier operations. Four types: ArtifactIndexed (artifact scanned), SnapshotComputed (snapshot created), ArtifactMissing (required artifact not found), ParityDriftDetected (content changed since baseline).
Context	System Events
Status	candidate
Applicable to	1.x, 2.x
Related terms	Mission Dossier, Anomaly Event, Event Envelope

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Anomaly Event

Definition	An event that is only emitted when something unexpected happens — such as a required artifact being missing or parity drift being detected. Unlike routine lifecycle events, anomaly events signal conditions that may need the Human-in-Charge's attention.
Context	System Events
Status	candidate
Applicable to	1.x, 2.x
Related terms	Dossier Event, Human-in-Charge (HiC)

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WPStatusChanged

Definition	The standard event emitted when a work package moves from one lane to another (e.g., from planned to in_progress). Part of the status model's event contract.
Context	System Events
Status	canonical
Applicable to	1.x, 2.x
Related terms	Work Package, Lane, Event Envelope

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Lamport Clock

Definition	A logical counter included in event envelopes that tracks the order events happened in, without relying on wall-clock time. Each new event increments the counter, ensuring events can be reliably ordered even across different machines.
Context	System Events
Status	canonical
Applicable to	1.x, 2.x
Related terms	Event Envelope, Replay