malvin 0.2.9

Non-interactive research and coding agent
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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136


pub(crate) async fn agent_backoff_sleep(d: std::time::Duration) {
    if cfg!(test) || crate::acp::test_no_real_agent_enabled() {
        return;
    }
    tokio::time::sleep(d).await;
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
pub enum AgentFault {
    #[default]
    Ordinary,
    SessionDead,
    CursorBusy,
    StaleAuth,
    BackendRetryLimit,
    OutputCap,
    NonRetryable,
    RestoreStop,
    SessionNewInternal,
    Http2Transport,
}

#[derive(Debug, Clone, thiserror::Error)]
#[error("{message}")]
pub struct AgentError {
    pub message: String,
    pub fault: AgentFault,
}

impl AgentError {
    #[must_use]
    pub fn ordinary(message: impl Into<String>) -> Self {
        Self {
            message: message.into(),
            fault: AgentFault::Ordinary,
        }
    }

    #[must_use]
    pub fn session_dead(message: impl Into<String>) -> Self {
        Self {
            message: message.into(),
            fault: AgentFault::SessionDead,
        }
    }

    #[must_use]
    pub fn requires_coder_session_teardown(&self) -> bool {
        match self.fault {
            AgentFault::SessionDead | AgentFault::CursorBusy | AgentFault::StaleAuth => true,
            AgentFault::Http2Transport => !crate::acp::test_no_real_agent_enabled(),
            AgentFault::Ordinary
            | AgentFault::BackendRetryLimit
            | AgentFault::OutputCap
            | AgentFault::NonRetryable
            | AgentFault::RestoreStop
            | AgentFault::SessionNewInternal => false,
        }
    }
}

#[allow(non_snake_case)]
#[must_use]
pub fn AgentError(message: String) -> AgentError {
    let fault = crate::acp::classify_agent_fault(&message);
    AgentError { message, fault }
}

#[derive(Debug, Clone, thiserror::Error)]
#[error("{0}")]
pub struct AuthError(pub String);

#[derive(Debug, Clone, Copy)]
#[allow(clippy::struct_excessive_bools)]
pub struct AgentIoOptions {
    pub no_tee: bool,
    pub raw_output: bool,
    pub show_thoughts_on_stdout: bool,
    pub emit_stdout_markdown: bool,
    pub log_full_outgoing_prompts: bool,
}

#[cfg(test)]
#[test]
fn agent_error_display_roundtrip() {
    let _ = AgentError;
    let err = AgentError("e".into());
    assert_eq!(err.to_string(), "e");
    assert_eq!(format!("{err}"), "e");
    assert_eq!(err.fault, AgentFault::Ordinary);
}

#[cfg(test)]
#[test]
fn auth_error_display_roundtrip() {
    let _ = AuthError;
    let err = AuthError("a".into());
    assert_eq!(err.to_string(), "a");
    assert_eq!(format!("{err}"), "a");
}

#[cfg(test)]
#[test]
fn agent_error_error_trait() {
    let err = AgentError("e".into());
    let _: &dyn std::error::Error = &err;
}

#[cfg(test)]
#[test]
fn auth_error_error_trait() {
    let err = AuthError("a".into());
    let _: &dyn std::error::Error = &err;
}

#[cfg(test)]
#[test]
fn agent_error_session_dead_fault() {
    let err = AgentError::session_dead("bridge write: broken");
    assert_eq!(err.fault, AgentFault::SessionDead);
    assert!(err.requires_coder_session_teardown());
}

#[cfg(test)]
#[test]
fn agent_io_options_default_fields() {
    let io = AgentIoOptions {
        no_tee: false,
        raw_output: false,
        show_thoughts_on_stdout: false,
        emit_stdout_markdown: false,
        log_full_outgoing_prompts: false,
    };
    assert!(!io.no_tee);
}