Struct Limits 

pub struct Limits {
    pub max_payload_bytes: u64,
    pub max_embedded_bytes: u64,
    pub idempotency_key_ttl_seconds: Option<u32>,
    pub max_publish_per_minute: Option<u64>,
    pub change_retention_seconds: Option<u64>,
    pub max_change_filters: Option<u64>,
    pub max_changes_page: Option<u64>,
    pub max_subscriptions_per_requester: Option<u64>,
}

Resource limits declared by the registry.

The capabilities document is OPEN at the top level, but limits is a CLOSED sub-object (additionalProperties: false): new limit keys are added by a spec version bump, not by registries inventing fields, so deny_unknown_fields rejects an unknown key (RFC-ACDP-0007 §3.3.1, conformance fixture schema-010).

Fields

max_payload_bytes: u64

Maximum total publish request size in bytes.

max_embedded_bytes: u64

Maximum size of any single embedded data reference in bytes (≤ 65536).

idempotency_key_ttl_seconds: Option<u32>

How long idempotency-key mappings are retained, in seconds. MUST be present when supports_idempotency_key is true.

Optional and absent-or-integer in the schema — not nullable. de_present rejects an explicit "idempotency_key_ttl_seconds": null.

max_publish_per_minute: Option<u64>

(0.3.0) OPTIONAL nominal per-agent publish ceiling, in publishes per minute (integer ≥ 1). Advisory: producers SHOULD use it to pace publishes; its presence does NOT change the RFC-ACDP-0008 §4.3 requirements (rate limiting stays REQUIRED, Retry-After stays mandatory on 429). RFC-ACDP-0007 §3.2, fixture caps-007.

change_retention_seconds: Option<u64>

(0.5.0, Draft) How long GET /changes entries, and cursors pointing at them, are retained, in seconds (≥ 2592000, 30 days). MUST be present with acdp-registry-changes (RFC-ACDP-0018 §5.4, §9).

max_change_filters: Option<u64>

(0.5.0, Draft) Maximum total ctx_id/lineage_id/agent_id/ kind values in one GET /changes request or subscription filter (≥ 100). MUST be present with acdp-registry-changes (RFC-ACDP-0018 §5.1, §9).

max_changes_page: Option<u64>

(0.5.0, Draft) Largest GET /changes limit the registry accepts (≥ 100). MUST be present with acdp-registry-changes (RFC-ACDP-0018 §5.1, §9).

max_subscriptions_per_requester: Option<u64>

(0.5.0, Draft) Maximum change-hint subscriptions one requester DID may hold (≥ 1). MUST be present with acdp-registry-events (RFC-ACDP-0018 §8.1, §9).

Trait Implementations

impl Clone for Limits

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 Limits

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Limits

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Limits

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

where __S: Serializer,

Serialize this value into the given Serde serializer.