Expand description
Runtime metadata collection boundary.
§Fragment: metadata-collection-boundary
Metadata remains split by source type: context metadata identifies an execution attempt, message metadata travels with payloads, and lifecycle metadata records runtime transitions. Message boundary records describe send, receive, and drop observations at the port seam. The sink below is only the collection seam. It lets runtime code report those existing facts without collapsing them into a premature storage, tracing, or graph model.
Structs§
- Deadlock
Diagnostic Metadata - Machine-facing workflow deadlock diagnostic metadata.
- Error
Metadata Record - One structured error observation at a runtime boundary.
- External
Effect Metadata Record - One structured external effect observation at a node boundary.
- Jsonl
Metadata Sink - Metadata sink that writes one stable JSON object per line.
- Message
Boundary Record - One message observation at a runtime boundary.
- Noop
Metadata Sink - Metadata sink that intentionally records nothing.
- Queue
Pressure Record - One queue pressure or capacity observation at a port boundary.
- Tiered
Metadata Policy - Policy used by a tiered metadata sink.
- Tiered
Metadata Sink - Metadata sink adapter that applies a cost-tier policy before forwarding.
Enums§
- Error
Diagnostic Metadata - Structured diagnostic payload attached to an error metadata record.
- Error
Metadata Kind - Scope where an error was observed by the runtime.
- External
Effect Metadata Kind - External effect observation kind at a node boundary.
- Message
Boundary Kind - Where a message was observed at the port boundary.
- Metadata
Record - One metadata fact observed at a runtime boundary.
- Metadata
Tier - Cost tier for one metadata record.
- Queue
Port Direction - Direction of a queue observation relative to the current node.
- Queue
Pressure Boundary Kind - Where queue pressure was observed at the port boundary.
Traits§
- Metadata
Sink - Collection sink for runtime metadata records.
Functions§
- metadata_
record_ to_ json_ value - Convert one metadata record into the stable JSON shape used by JSONL sinks.