Module runtime 

Runtime metadata shared by the reducer, recorder, and renderer.

These types deliberately carry facts rather than presentation strings. Tool output still contains the provider-facing text that goes back into the model, while this module holds the metadata the UI and future commands can consume without scraping that text.

Structs

ManagedProcess

Registry record for a background process Mermaid started.

ProviderCapabilitySnapshot

Normalized provider capability snapshot exposed in app state.

RuntimeState

Runtime state that is not part of the chat transcript sent to a model, but is useful for UI, slash commands, and debugging.

RuntimeTimelineEvent

Runtime event recorded in state for observability / replay tooling.

ToolRunMetadata

Structured metadata extracted from a completed tool run.

Enums

ManagedProcessStatus

Background process status tracked by Mermaid after launching a command in execute_command(mode="background").

RuntimeSignal

External lifecycle signal observed by the app shell.

RuntimeTimelineKind

ToolArtifact

Non-text artifact produced by a tool. Images are base64 strings to match the existing chat-message storage format.

ToolMetadata

Typed metadata produced by a specific tool implementation.

ToolStatus

Tool outcome status independent of how the result is rendered.

Functions

infer_static_context_window_for_model_id