Struct DerivedWriteGrant 

pub struct DerivedWriteGrant {
    pub grantee_node_id: String,
    pub topic: String,
    pub issued_at_ms: u64,
    pub scope: GrantScope,
}

Capability allowing a node to publish under substrate/_derived/<topic> (or its subtree, depending on GrantScope).

Mesh-canonical paths (substrate/_derived/...) are explicitly outside the per-node prefix rule; without a grant the substrate write gate refuses every publish to that subtree, even from a daemon-class node. See .planning/sensors/PIPELINE-PRIMITIVE-JOURNAL.md §R3.6 for the design rationale.

MVP scope: grants are issued in-process by the daemon to itself; there is no signature on the grant itself, no revocation API, and no cross-node federation. Those land later (R3.6 calls them out as deferred).

Fields

grantee_node_id: String

Node id permitted to write under the topic.

topic: String

Topic segment immediately under _derived/. For whisper this is "transcript". Stored without the _derived/ prefix so the registry holds the conceptual capability, not its path rendering.

issued_at_ms: u64

Wall-clock issuance time in milliseconds since UNIX epoch.

scope: GrantScope

Whether the topic is matched as exact-only or as a path prefix.

Trait Implementations

impl Clone for DerivedWriteGrant

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DerivedWriteGrant

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

Formats the value using the given formatter.