Intent Operations

Operations are invoked as - op: name inside a rule’s then block. Each operation has a dedicated reference page under DSL → Operations.

By phase

Phase	Operations
Preflight	`reject`, `if`, `lookup`, `find`, `for_each`, `stop`, `continue`
Core	`set`, `add`, `sub`, `unset`, `merge`, `push`, `remove`, `filter`, `find`, `map`, `sort`, `clone`, `relationship_create`, `relationship_remove`, `emit`, `emit_each`, `lock`, `unlock`, `if`, `for_each`, `stop`, `continue`
Side effects	`emit`, `emit_each`, `submit`, `schedule`, `decision`, `lock`, `unlock`, `if`, `for_each`, `stop`, `continue`

Mutation ops (core)

Op	Required	Optional	Notes
`set`	`path`, `value`	`if_missing`, `target_stream`	Set field to value
`add`	`path`, `value`	`cap: {max, min}`, `if_missing`	Add to numeric field
`sub`	`path`, `value`	`cap: {max, min}`, `if_missing`	Subtract from numeric field
`unset`	`path`		Remove field
`merge`	`path`, `value`		Shallow merge into object

Array ops (core)

Op	Required	Optional	Notes
`push`	`path`, `value`		Append element
`remove`	`path`	`where` (string)	Remove matching elements; `it` iterator
`filter`	`path`, `where` (string)		Keep matching; `it` iterator
`find`	`path`, `where` (string), `as`		Bind element to variable
`map`	`path`, `as`, `value`		Transform elements
`sort`	`path`, `by`		Prefix `-` for descending
`clone`	`path`, `as`		Deep copy to variable

Validation ops (preflight)

Op	Required	Optional	Notes
`reject`	`code`	`message`	Abort intent — use in preflight

Side effect ops (side_effects)

Op	Required	Optional	Notes
`emit`	`event_type`, `payload`	`target_stream`, `target_entity`	Also allowed in `core`
`emit_each`	`from`, `event_type`, `payload`	`target_stream`	Also allowed in `core`
`submit`	`intent_type`, `payload`	`target_stream`, `target_entity`	Side effects only
`schedule`	`delay_seconds`	`event_type` or `intent_type`	Side effects only
`decision`	`ref`	`input`	AI decision — side effects only

Control flow (all phases — nested ops must match phase)

Op	Required	Notes
`if`	`expr`, `then`	Optional `else`
`for_each`	`for_each`, `then`	Iterator: `item`
`stop`		Halt current rule / break loop
`continue`		Next `for_each` iteration only

Cross-stream & relationships

Op	Phase	Required	Notes
`lookup`	preflight (validation)	`into`, `stream`, `entity_id_expr`	Read entity into scratch path
`relationship_create`	core	`relationship`, `to_id`	Create edge
`relationship_remove`	core	`relationship`, `to_id`	Remove edge
`LOOKUP_FIELD(...)`	preflight (expr)	—	Inline cross-stream field read

Next steps

DSL Operations — surgical reference for every op:
DSL Overview — complete platform reference

Rules Expressions