agentix 0.15.0

Multi-provider LLM client for Rust — streaming, non-streaming, tool calls, MCP, DeepSeek, OpenAI, Anthropic, Gemini
Documentation 
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use serde::Deserialize;
use serde_json::Value;

#[derive(Debug, Deserialize)]
pub struct Response {
    pub content: Vec<ResponseBlock>,
    pub usage: Option<Usage>,
    pub stop_reason: Option<String>,
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum ResponseBlock {
    Text     { text: String },
    ToolUse  { id: String, name: String, input: Value },
    Thinking { thinking: String },
}

#[derive(Debug, Deserialize)]
pub struct Usage {
    pub input_tokens: u32,
    pub output_tokens: u32,
    #[serde(default)]
    pub cache_read_input_tokens: u32,
    #[serde(default)]
    pub cache_creation_input_tokens: u32,
}

impl From<Usage> for crate::types::UsageStats {
    fn from(u: Usage) -> Self {
        Self {
            prompt_tokens:          u.input_tokens as usize,
            completion_tokens:      u.output_tokens as usize,
            total_tokens:          (u.input_tokens + u.output_tokens) as usize,
            cache_read_tokens:      u.cache_read_input_tokens as usize,
            cache_creation_tokens:  u.cache_creation_input_tokens as usize,
        }
    }
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum StreamEvent {
    MessageStart      { message: MessageStart },
    ContentBlockStart { index: u32, content_block: ContentBlockStart },
    ContentBlockDelta { index: u32, delta: ContentBlockDelta },
    ContentBlockStop  { index: u32 },
    MessageDelta      { delta: MessageDelta, usage: Option<Usage> },
    MessageStop,
    Error             { error: StreamError },
    #[serde(other)]
    Unknown,
}

#[derive(Debug, Deserialize)]
pub struct MessageStart {
    pub usage: Option<Usage>,
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum ContentBlockStart {
    Text    { text: String },
    ToolUse { id: String, name: String },
    Thinking { thinking: String },
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum ContentBlockDelta {
    TextDelta      { text: String },
    InputJsonDelta { partial_json: String },
    ThinkingDelta  { thinking: String },
}

#[derive(Debug, Deserialize)]
pub struct MessageDelta {
    pub stop_reason: Option<String>,
}

#[derive(Debug, Deserialize)]
pub struct StreamError {
    pub r#type: String,
    pub message: String,
}