Struct AetherSettings 

pub struct AetherSettings {
    pub agent: Option<String>,
    pub prompts: Vec<PromptSource>,
    pub mcps: Vec<McpSourceSpec>,
    pub providers: ProviderConnectionOverrides,
    pub credentials_store: Option<CredentialsStoreConfig>,
    pub agents: Vec<AgentConfig>,
}

The root of an Aether settings file (.aether/settings.json). It selects the default agent and defines the agents, prompt sources, MCP servers, and provider overrides available to a project.

A minimal project with a single user-invocable agent:

{
  "agent": "Build",
  "agents": [
    {
      "name": "Build",
      "description": "Builds features and fixes bugs",
      "model": "anthropic:claude-sonnet-4-5-20250929",
      "userInvocable": true
    }
  ]
}

A fuller setup with shared prompts, an MCP source, and a provider override:

{
  "agent": "Build",
  "prompts": ["AGENTS.md"],
  "mcps": [".aether/mcp.json"],
  "providers": {
    "anthropic": { "auth": "default" }
  },
  "agents": [
    {
      "name": "Build",
      "description": "Builds features and fixes bugs",
      "model": "anthropic:claude-sonnet-4-5-20250929",
      "reasoningEffort": "high",
      "userInvocable": true,
      "prompts": [".aether/BUILD.md", "AGENTS.md"]
    }
  ]
}

An encrypted file credential store using a passphrase from the environment:

{
  "credentialsStore": {
    "type": "encryptedFile",
    "passwordEnv": "PASSWORD_ENV_VAR_NAME"
  },
  "agents": [
    {
      "name": "Build",
      "description": "Builds features and fixes bugs",
      "model": "anthropic:claude-sonnet-4-5-20250929",
      "userInvocable": true
    }
  ]
}

Fields

agent: Option<String>

Name of the agent to launch by default. Must match a name in agents. When unset, Aether falls back to the first user-invocable agent.

prompts: Vec<PromptSource>

Default prompt sources shared by all agents. An agent inherits these only when its own prompts array is empty.

mcps: Vec<McpSourceSpec>

Default MCP sources shared by all agents. An agent inherits these only when its own mcps array is empty.

providers: ProviderConnectionOverrides

Provider connection overrides (credentials, base URLs, inference profiles) applied to every agent unless overridden per-agent.

credentials_store: Option<CredentialsStoreConfig>

Credential storage backend for OAuth tokens. Defaults to the OS keyring when unset.

agents: Vec<AgentConfig>

The agents defined for this project. At least one agent is required.

Implementations

impl AetherSettings

pub fn load_default(project_root: &Path) -> Result<Self, SettingsError>

pub fn load( project_root: &Path, sources: impl IntoIterator<Item = AetherSettingsSource>, ) -> Result<Self, SettingsError>

pub fn load_file_for_export(path: &Path) -> Result<Self, SettingsError>

pub fn merge(self, next: Self) -> Self

pub fn inline_resources(&mut self, root: &Path) -> Result<(), SettingsError>

Replace every file- and glob-backed prompt and MCP source with its inlined contents, resolving paths against root.

The result serializes to a self-contained settings document with no external file references, suitable for shipping to a machine or container that does not have the authoring repository mounted.

Trait Implementations

impl Clone for AetherSettings

fn clone(&self) -> AetherSettings

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AetherSettings

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

Formats the value using the given formatter.

impl Default for AetherSettings

fn default() -> AetherSettings

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for AetherSettings

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for AetherSettings

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for AetherSettings

fn eq(&self, other: &AetherSettings) -> 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 AetherSettings

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AetherSettings

impl TryFrom<&str> for AetherSettings

type Error = SettingsError

The type returned in the event of a conversion error.

fn try_from(content: &str) -> Result<Self, Self::Error>

Performs the conversion.