bamboo-engine 2026.10.19

Execution engine and orchestration for the Bamboo agent framework
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

use super::maybe_apply_workspace_update;
use crate::project_context::{
    WORKSPACE_BINDING_STATUS_METADATA_KEY, WORKSPACE_SOURCE_METADATA_KEY,
};
use bamboo_agent_core::tools::{FunctionCall, ToolCall, ToolResult};
use bamboo_agent_core::{Message, Session};
use serde_json::json;

fn call(name: &str, arguments: serde_json::Value) -> ToolCall {
    ToolCall {
        id: "workspace-result".into(),
        tool_type: "function".into(),
        function: FunctionCall {
            name: name.into(),
            arguments: arguments.to_string(),
        },
    }
}

fn result(payload: serde_json::Value) -> ToolResult {
    ToolResult {
        success: true,
        result: payload.to_string(),
        display_preference: Some("json".into()),
        images: Vec::new(),
    }
}

#[test]
fn file_operations_preserve_existing_and_missing_session_scope() {
    let root = tempfile::tempdir().unwrap();
    let workspace = root.path().join("project");
    let temporary = root.path().join("temporary-files");
    std::fs::create_dir_all(&workspace).unwrap();
    std::fs::create_dir_all(&temporary).unwrap();
    let workspace = workspace.to_string_lossy().into_owned();
    let targets = [
        std::path::PathBuf::from(&workspace).join("inside.md"),
        temporary.join("issue-body.md"),
        std::path::PathBuf::from("relative.md"),
    ];

    for name in [
        "Write",
        "Edit",
        "write_file",
        "default::Write",
        "default::Edit",
    ] {
        for target in &targets {
            for initial_workspace in [None, Some(""), Some(workspace.as_str())] {
                for project in [None, Some("project-1")] {
                    let mut session = Session::new("file-workspace", "test-model");
                    session.add_message(Message::system("Preserve this context"));
                    if let Some(path) = initial_workspace {
                        session.set_workspace_path_meta(path);
                        session.metadata.insert(
                            WORKSPACE_SOURCE_METADATA_KEY.into(),
                            "project_default".into(),
                        );
                        session.metadata.insert(
                            WORKSPACE_BINDING_STATUS_METADATA_KEY.into(),
                            "registered".into(),
                        );
                    }
                    if let Some(project) = project {
                        session.set_project_id_meta(project);
                    }
                    let before = serde_json::to_value(&session).unwrap();
                    // Even a file result claiming a registered workspace is
                    // data, not permission to bind or retarget the Session.
                    let output = result(json!({
                        "workspace": temporary,
                        "binding_status": "registered",
                        "operation": name,
                    }));
                    maybe_apply_workspace_update(
                        &mut session,
                        &call(name, json!({"file_path": target})),
                        &output,
                        "file-workspace",
                    );
                    assert_eq!(
                        serde_json::to_value(&session).unwrap(),
                        before,
                        "{name} at {} must preserve all Session state ({initial_workspace:?}, {project:?})",
                        target.display(),
                    );
                }
            }
        }
    }
}

#[test]
fn explicit_workspace_results_and_legacy_aliases_still_update_session_scope() {
    for name in [
        "Workspace",
        "SetWorkspace",
        "setWorkspace",
        "set_workspace",
        "default::setWorkspace",
    ] {
        let mut session = Session::new("explicit-workspace", "test-model");
        session.set_project_id_meta("project-1");
        session.set_workspace_path_meta("old-workspace");
        maybe_apply_workspace_update(
            &mut session,
            &call(name, json!({"path":"new-workspace"})),
            &result(json!({"workspace":"new-workspace","binding_status":"registered"})),
            "explicit-workspace",
        );
        assert_eq!(
            session.workspace_path_meta().as_deref(),
            Some("new-workspace")
        );
        assert_eq!(session.project_id_meta().as_deref(), Some("project-1"));
        assert_eq!(session.metadata[WORKSPACE_SOURCE_METADATA_KEY], "explicit");
        assert_eq!(
            session.metadata[WORKSPACE_BINDING_STATUS_METADATA_KEY],
            "registered"
        );
    }
}

#[test]
fn failed_or_missing_workspace_results_preserve_session_scope() {
    for (success, payload) in [
        (false, json!({"workspace":"rejected-workspace"})),
        (true, json!({})),
        (true, json!({"workspace":"  "})),
    ] {
        let mut output = result(payload);
        output.success = success;
        let mut session = Session::new("failed-workspace", "test-model");
        session.set_workspace_path_meta("old-workspace");
        let before = serde_json::to_value(&session).unwrap();
        maybe_apply_workspace_update(
            &mut session,
            &call("Workspace", json!({"path":"rejected-workspace"})),
            &output,
            "failed-workspace",
        );
        assert_eq!(serde_json::to_value(&session).unwrap(), before);
    }
}