lash-core 0.1.0-alpha.36

Sans-IO turn machine and runtime kernel for the lash agent runtime.
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

use super::*;

#[test]
fn session_usage_report_aggregates_sources_and_models() {
    let entries = vec![
        TokenLedgerEntry {
            source: "turn".to_string(),
            model: "gpt-5.4-mini".to_string(),
            usage: TokenUsage {
                input_tokens: 10,
                output_tokens: 2,
                cached_input_tokens: 3,
                reasoning_tokens: 1,
            },
        },
        TokenLedgerEntry {
            source: "observer".to_string(),
            model: "gpt-5.4-mini".to_string(),
            usage: TokenUsage {
                input_tokens: 7,
                output_tokens: 1,
                cached_input_tokens: 0,
                reasoning_tokens: 0,
            },
        },
        TokenLedgerEntry {
            source: "turn".to_string(),
            model: "gpt-5.4".to_string(),
            usage: TokenUsage {
                input_tokens: 20,
                output_tokens: 4,
                cached_input_tokens: 5,
                reasoning_tokens: 2,
            },
        },
    ];

    let report = SessionUsageReport::from_entries(&entries);

    assert_eq!(report.entry_count, 3);
    assert_eq!(report.usage.input_tokens, 37);
    assert_eq!(report.usage.output_tokens, 7);
    assert_eq!(report.usage.cached_input_tokens, 8);
    assert_eq!(report.usage.reasoning_tokens, 3);
    assert_eq!(report.usage.total_tokens, 47);
    assert_eq!(report.usage.context_total_tokens, 55);
    assert_eq!(report.by_source["turn"].input_tokens, 30);
    assert_eq!(report.by_source["observer"].output_tokens, 1);
    assert_eq!(report.by_model["gpt-5.4-mini"].input_tokens, 17);
    assert_eq!(report.by_model["gpt-5.4"].reasoning_tokens, 2);

    let delta = diff_token_ledger(
        &[TokenLedgerEntry {
            source: "turn".to_string(),
            model: "gpt-5.4-mini".to_string(),
            usage: TokenUsage {
                input_tokens: 10,
                output_tokens: 2,
                cached_input_tokens: 3,
                reasoning_tokens: 1,
            },
        }],
        &entries,
    )
    .expect("delta");
    assert_eq!(delta.len(), 2);
    assert_eq!(delta[0].source, "observer");
    assert_eq!(delta[1].model, "gpt-5.4");
}