mcp-protocol 0.2.7

Protocol definitions for the Model Context Protocol (MCP)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104

// mcp-protocol/src/types/completion/mod.rs
use serde::{Deserialize, Serialize};

/// Reference to a prompt or resource for completion
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(tag = "type")]
pub enum CompletionReference {
    /// Reference to a prompt
    #[serde(rename = "ref/prompt")]
    Prompt {
        /// Name of the prompt
        name: String,
    },
    /// Reference to a resource
    #[serde(rename = "ref/resource")]
    Resource {
        /// URI of the resource
        uri: String,
    },
}

/// Argument to complete
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompletionArgument {
    /// Name of the argument
    pub name: String,
    
    /// Current value of the argument
    pub value: String,
}

/// Request for completion suggestions
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompleteRequest {
    pub r#ref: CompletionReference,
    pub argument: CompletionArgument,
}

/// Completion results
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompletionResult {
    pub values: Vec<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub total: Option<usize>,
    pub has_more: bool,
}

/// Response for completion request
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompleteResponse {
    pub completion: CompletionResult,
}

/// Parameters for the completion/complete request
/// Maintained for backward compatibility
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompletionCompleteParams {
    /// Reference to what is being completed
    pub r#ref: CompletionReference,
    
    /// Argument being completed
    pub argument: CompletionArgument,
}

/// Completion result
/// Maintained for backward compatibility
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompletionCompleteResult {
    /// Completion information
    pub completion: CompletionInfo,
}

/// Completion information
/// Maintained for backward compatibility
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompletionInfo {
    /// List of completion values, sorted by relevance
    pub values: Vec<String>,
    
    /// Total number of available matches (optional)
    #[serde(skip_serializing_if = "Option::is_none")]
    pub total: Option<u32>,
    
    /// Flag indicating if there are more results available
    #[serde(rename = "hasMore")]
    pub has_more: bool,
}

/// A single completion item with more details
/// This is from our previous implementation and is maintained
/// for backward compatibility with our resource template completion
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompletionItem {
    /// The completion label to display
    pub label: String,
    
    /// Optional description
    #[serde(skip_serializing_if = "Option::is_none")]
    pub detail: Option<String>,
    
    /// Additional documentation
    #[serde(skip_serializing_if = "Option::is_none")]
    pub documentation: Option<String>,
}