Struct VisibilityConfig 

pub struct VisibilityConfig {
    pub tools: ComponentVisibilityRules,
    pub resources: ComponentVisibilityRules,
    pub resource_templates: ComponentVisibilityRules,
    pub prompts: ComponentVisibilityRules,
    pub require_read_only_tools: bool,
}

Progressive disclosure through component visibility control. Complete runtime visibility configuration for an MCP server.

This type is intentionally serializable so applications can deserialize a user-facing config file and pass it directly to VisibilityLayer::with_visibility_config.

Fields

tools: ComponentVisibilityRules

Exact-name rules for tools.

resources: ComponentVisibilityRules

Exact-name rules for resources. Matches resource name or uri.

resource_templates: ComponentVisibilityRules

Exact-name rules for resource templates. Matches name or uriTemplate.

prompts: ComponentVisibilityRules

Exact-name rules for prompts.

require_read_only_tools: bool

Hide every tool that is not explicitly annotated readOnlyHint: true.

Tools marked destructiveHint: true are hidden even if they also carry a read-only hint, because conflicting safety hints should fail closed.

Implementations

impl VisibilityConfig

pub fn new() -> Self

Create an empty visibility config.

pub fn with_allowed_tools<I, S>(self, names: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Enable only the named tools.

pub fn with_disabled_tools<I, S>(self, names: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Disable the named tools from both listing and direct calls.

pub fn with_hidden_tools<I, S>(self, names: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Hide the named tools from tools/list while still permitting direct calls.

pub fn with_allowed_resources<I, S>(self, identifiers: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Enable only the named resources. Names and URIs both match.

pub fn with_disabled_resources<I, S>(self, identifiers: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Disable the named resources from both listing and direct reads.

pub fn with_hidden_resources<I, S>(self, identifiers: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Hide the named resources from list responses while still permitting reads.

pub fn with_allowed_resource_templates<I, S>(self, identifiers: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Enable only the named resource templates. Names and URI templates both match.

pub fn with_disabled_resource_templates<I, S>(self, identifiers: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Disable the named resource templates from list responses.

pub fn with_hidden_resource_templates<I, S>(self, identifiers: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Hide the named resource templates from list responses.

pub fn with_allowed_prompts<I, S>(self, names: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Enable only the named prompts.

pub fn with_disabled_prompts<I, S>(self, names: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Disable the named prompts from both listing and direct gets.

pub fn with_hidden_prompts<I, S>(self, names: I) -> Self

where I: IntoIterator<Item = S>, S: Into<String>,

Hide the named prompts from prompts/list while still permitting gets.

pub fn require_read_only_tools(self) -> Self

Hide every tool that is not explicitly annotated read-only.

Trait Implementations

impl Clone for VisibilityConfig

fn clone(&self) -> VisibilityConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VisibilityConfig

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

Formats the value using the given formatter.

impl Default for VisibilityConfig

fn default() -> VisibilityConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for VisibilityConfig

where VisibilityConfig: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for VisibilityConfig

fn eq(&self, other: &VisibilityConfig) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for VisibilityConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for VisibilityConfig

impl StructuralPartialEq for VisibilityConfig