boocode/openspec/changes/archived/2026-06-07-eval-sandbox-agent-runtime/specs/graph-streaming/spec.md at fa07b015677ab67da186005cb480e12b4da1ef01

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indifferentketchup c935687725 chore(openspec): drop 9 superseded proposals + 11 stub archive files

Drop 9 batch proposals that are superseded by the boocode-lift-analysis
(boocontext-audit, conductor upgrades, self-healing/verify-gate skills):
add-3tier-memory, import-llm-evaluator, import-pregel-engine, plugin-platform,
conductor-evolution, code-intelligence-upgrade, dev-workflow, ui-overhaul,
agent-reliability.

Delete 11 stub archive files (49-66B each, 'Status: Shipped. Archived.' only)
that provide zero documentation value over the existing CHANGELOG.md + git tags.

2026-06-07 22:15:38 +00:00

1.8 KiB

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ADDED Requirements

Requirement: Stream modes

The system SHALL support multiple stream modes when invoking a compiled graph:

"values" — emits the full state after each superstep
"updates" — emits only the state changes after each superstep
"messages" — emits individual message chunks for chat-oriented graphs
"debug" — emits debug events with full superstep information
"custom" — supports user-defined events via a emit function

Scenario: Values mode emits full state

WHEN a graph is streamed with streamMode: ["values"]
THEN each chunk SHALL contain the complete state object after each superstep

Scenario: Updates mode emits diffs

WHEN a graph is streamed with streamMode: ["updates"]
THEN each chunk SHALL contain only the state keys that changed

Requirement: Stream event protocol

The system SHALL emit structured events during graph execution, including:

on_chain_start — node execution begins
on_chain_end — node execution completes
on_chain_stream — intermediate output from a node
on_custom_event — user-defined events
Checkpoint metadata paired with each event (id, parent_id, step, source)

Scenario: Events include checkpoint metadata

WHEN a stream event is received
THEN it SHALL include a checkpoint envelope with id, step, and source

Scenario: Custom events propagate from nodes

WHEN a node emits a custom event via an emit function
THEN that event SHALL appear in the stream with type on_custom_event

Requirement: Async iteration over streams

The system SHALL support for await...of iteration over graph streams.

Scenario: Stream is async iterable

WHEN for await (const chunk of graph.stream(...)) is used
THEN each chunk SHALL be available as it is produced

1.8 KiB Raw Blame History