Struct NodeDescribe 

pub struct NodeDescribe {
    pub type: NodeTypeStr,
    pub status: NodeStatus,
    pub value: Option<DescribeValue>,
    pub deps: Vec<String>,
    pub operator_kind: Option<String>,
    pub meta: Option<Value>,
}

Per-node descriptor.

Fields

type: NodeTypeStr

"state" / "derived" / "dynamic" / "producer". Producer-vs-state inference: a state node with no fn-id but has_fired_once=true may stem from a producer pattern; the rust-side classifier just reports kind directly. (Producer inference is a binding-side concern — see canonical §3.6.1.)

status: NodeStatus

Lifecycle status (canonical Appendix B enum).

value: Option<DescribeValue>

Current cache value (F sub-slice, 2026-05-10). None when the cache is sentinel (NO_HANDLE). Otherwise:

• DescribeValue::Handle(HandleId) — raw u64 (from Graph::describe).
• DescribeValue::Rendered(serde_json::Value) — binding- rendered (from Graph::describe_with_debug).

Serialization is uniform: the inner u64 or JSON value appears directly in the output (no enum tag).

deps: Vec<String>

Dep names in declaration order. Unnamed deps surface as _anon_<NodeId> to keep the output lossless without elevating Core-only nodes into the namespace.

operator_kind: Option<String>

Operator discriminant (e.g. "map", "filter", "combine"). None for non-operator nodes. Slice V5: surfaces the OperatorOp variant name so consumers can distinguish operator kinds (was previously just type: "operator").

meta: Option<Value>

Free-form metadata per canonical Appendix B (e.g. { "description": "...", "type": "integer", "range": [1, 10] }). Always None in this slice — the metadata-storage primitive on Core hasn’t shipped yet. Reserved as Option<serde_json::Value> so the JSON shape stays forward-compatible (omitted via skip_serializing_if when None to keep current outputs slim).

Trait Implementations

impl Clone for NodeDescribe

fn clone(&self) -> NodeDescribe

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NodeDescribe

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Serialize for NodeDescribe

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.