Configuration

Config section: workflow (config_key in WorkflowProvider, config_model = BulkOperationConfig).

The graph engine has a separate config (GraphConfig) registered as a singleton; its env vars use the prefix LEX_WORKFLOW__GRAPH__.

BulkOperationConfig

Environment variable prefix: LEX_WORKFLOW__ (e.g. LEX_WORKFLOW__BATCH_SIZE=200).

Defined in lexigram.workflow.config.BulkOperationConfig.

Key	Type	Default	Env var	Description
batch_size	int	10	LEX_WORKFLOW__BATCH_SIZE	Items per batch
max_concurrency	int	5	LEX_WORKFLOW__MAX_CONCURRENCY	Max concurrent operations
timeout	float	300.0	LEX_WORKFLOW__TIMEOUT	Operation timeout in seconds
retry_attempts	int	3	LEX_WORKFLOW__RETRY_ATTEMPTS	Retry attempts on failure
retry_delay	float	1.0	LEX_WORKFLOW__RETRY_DELAY	Delay between retries (seconds)
enable_progress_tracking	bool	True	LEX_WORKFLOW__ENABLE_PROGRESS_TRACKING	Track operation progress
circuit_breaker_config	CircuitBreakerConfig | None	None	—	Circuit breaker for bulk ops
pipeline_timeout	float	60.0	LEX_WORKFLOW__PIPELINE_TIMEOUT	Default pipeline timeout (seconds)

GraphConfig

Environment variable prefix: LEX_WORKFLOW__GRAPH__ (e.g. LEX_WORKFLOW__GRAPH__ENABLED=false).

Defined in lexigram.workflow.config.GraphConfig.

Key	Type	Default	Env var	Description
enabled	bool	True	LEX_WORKFLOW__GRAPH__ENABLED	Enable graph subsystem
max_iterations	int	25	LEX_WORKFLOW__GRAPH__MAX_ITERATIONS	Max traversal steps (anti-loop)
node_timeout	float	120.0	LEX_WORKFLOW__GRAPH__NODE_TIMEOUT	Per-node timeout (0 = no limit)
total_timeout	float	0.0	LEX_WORKFLOW__GRAPH__TOTAL_TIMEOUT	Total workflow timeout (0 = no limit)
checkpoint_enabled	bool	False	LEX_WORKFLOW__GRAPH__CHECKPOINT_ENABLED	Persist checkpoints for resumption
parallel_branches	bool	True	LEX_WORKFLOW__GRAPH__PARALLEL_BRANCHES	Execute parallel branches via asyncio.gather
max_parallel_branches	int	0	LEX_WORKFLOW__GRAPH__MAX_PARALLEL_BRANCHES	Max parallel branches (0 = unlimited)

YAML example

workflow:
  batch_size: 100
  max_concurrency: 10
  timeout: 600.0
  retry_attempts: 5
  retry_delay: 2.0
  enable_progress_tracking: true
  pipeline_timeout: 120.0

Env-var override example

export LEX_WORKFLOW__BATCH_SIZE=200
export LEX_WORKFLOW__MAX_CONCURRENCY=20
export LEX_WORKFLOW__GRAPH__ENABLED=true
export LEX_WORKFLOW__GRAPH__CHECKPOINT_ENABLED=true
export LEX_WORKFLOW__GRAPH__MAX_ITERATIONS=50

The WorkflowProvider resolves BulkOperationConfig from the application config via LexigramConfig.get_section("workflow", BulkOperationConfig). GraphConfig is instantiated separately and registered as a singleton.