agm-core 1.2.0

Core library for parsing, validating, loading, and rendering AGM (Agent Graph Memory) files
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
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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155

//! State sidecar model types for `.agm.state` files.

use std::collections::BTreeMap;

use serde::{Deserialize, Serialize};

use super::execution::ExecutionStatus;

/// Represents a parsed `.agm.state` sidecar file.
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct StateFile {
    pub format_version: String,
    pub package: String,
    pub version: String,
    pub session_id: String,
    pub started_at: String,
    pub updated_at: String,
    pub nodes: BTreeMap<String, NodeState>,
}

/// Execution state of a single node.
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct NodeState {
    pub execution_status: ExecutionStatus,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub executed_by: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub executed_at: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub execution_log: Option<String>,
    pub retry_count: u32,
}

impl Default for NodeState {
    fn default() -> Self {
        Self {
            execution_status: ExecutionStatus::Pending,
            executed_by: None,
            executed_at: None,
            execution_log: None,
            retry_count: 0,
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    // -----------------------------------------------------------------------
    // A: Default
    // -----------------------------------------------------------------------

    #[test]
    fn test_node_state_default_is_pending_with_zero_retries() {
        let state = NodeState::default();
        assert_eq!(state.execution_status, ExecutionStatus::Pending);
        assert_eq!(state.retry_count, 0);
        assert!(state.executed_by.is_none());
        assert!(state.executed_at.is_none());
        assert!(state.execution_log.is_none());
    }

    // -----------------------------------------------------------------------
    // B: Serde roundtrip — minimal
    // -----------------------------------------------------------------------

    #[test]
    fn test_state_file_serde_roundtrip_minimal() {
        let state = StateFile {
            format_version: "1.0".to_owned(),
            package: "test.pkg".to_owned(),
            version: "0.1.0".to_owned(),
            session_id: "run-001".to_owned(),
            started_at: "2026-04-08T10:00:00Z".to_owned(),
            updated_at: "2026-04-08T10:00:00Z".to_owned(),
            nodes: BTreeMap::new(),
        };
        let json = serde_json::to_string(&state).unwrap();
        let back: StateFile = serde_json::from_str(&json).unwrap();
        assert_eq!(state, back);
    }

    // -----------------------------------------------------------------------
    // C: Serde roundtrip — full
    // -----------------------------------------------------------------------

    #[test]
    fn test_state_file_serde_roundtrip_full() {
        let mut nodes = BTreeMap::new();
        nodes.insert(
            "migration.001".to_owned(),
            NodeState {
                execution_status: ExecutionStatus::Completed,
                executed_by: Some("shell-agent".to_owned()),
                executed_at: Some("2026-04-08T10:05:00Z".to_owned()),
                execution_log: Some(".agm/logs/migration.001.log".to_owned()),
                retry_count: 1,
            },
        );
        nodes.insert(
            "migration.002".to_owned(),
            NodeState {
                execution_status: ExecutionStatus::Pending,
                executed_by: None,
                executed_at: None,
                execution_log: None,
                retry_count: 0,
            },
        );
        let state = StateFile {
            format_version: "1.0".to_owned(),
            package: "acme.migration".to_owned(),
            version: "1.0.0".to_owned(),
            session_id: "run-2026-04-08-153200".to_owned(),
            started_at: "2026-04-08T15:32:00Z".to_owned(),
            updated_at: "2026-04-08T15:35:00Z".to_owned(),
            nodes,
        };
        let json = serde_json::to_string(&state).unwrap();
        let back: StateFile = serde_json::from_str(&json).unwrap();
        assert_eq!(state, back);
    }

    // -----------------------------------------------------------------------
    // D: Optional fields absent in JSON when None
    // -----------------------------------------------------------------------

    #[test]
    fn test_node_state_optional_fields_absent_when_none() {
        let state = NodeState::default();
        let json = serde_json::to_string(&state).unwrap();
        assert!(!json.contains("executed_by"));
        assert!(!json.contains("executed_at"));
        assert!(!json.contains("execution_log"));
    }

    // -----------------------------------------------------------------------
    // E: NodeState serde roundtrip with all fields set
    // -----------------------------------------------------------------------

    #[test]
    fn test_node_state_serde_roundtrip_all_fields() {
        let state = NodeState {
            execution_status: ExecutionStatus::Failed,
            executed_by: Some("ci-agent".to_owned()),
            executed_at: Some("2026-04-08T12:00:00Z".to_owned()),
            execution_log: Some(".agm/logs/test.log".to_owned()),
            retry_count: 3,
        };
        let json = serde_json::to_string(&state).unwrap();
        let back: NodeState = serde_json::from_str(&json).unwrap();
        assert_eq!(state, back);
    }
}