truth-mirror 0.2.0

Truthfulness gate and adversarial reviewer harness for AI coding agents.
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
156
157
158
159
160
161
162
163
164
165
166
167
168

use std::{fs, path::Path};

use assert_cmd::Command;
use predicates::prelude::*;

fn git(repo: &Path, args: &[&str]) {
    let status = std::process::Command::new("git")
        .args(args)
        .current_dir(repo)
        .status()
        .unwrap();
    assert!(status.success(), "git {args:?} failed");
}

#[cfg(unix)]
fn make_executable(path: &Path) {
    use std::os::unix::fs::PermissionsExt;

    let mut permissions = fs::metadata(path).unwrap().permissions();
    permissions.set_mode(0o755);
    fs::set_permissions(path, permissions).unwrap();
}

#[cfg(not(unix))]
fn make_executable(_path: &Path) {}

#[test]
fn review_command_writes_ledger_with_mocked_reviewer_cli() {
    let temp = tempfile::tempdir().unwrap();
    let repo = temp.path().join("repo");
    let bin = temp.path().join("bin");
    fs::create_dir(&repo).unwrap();
    fs::create_dir(&bin).unwrap();

    git(&repo, &["init"]);
    git(&repo, &["config", "user.email", "truth@example.invalid"]);
    git(&repo, &["config", "user.name", "Truth Mirror Test"]);
    fs::write(repo.join("file.txt"), "hello\n").unwrap();
    git(&repo, &["add", "file.txt"]);
    git(
        &repo,
        &[
            "commit",
            "-m",
            "feat: add file",
            "-m",
            "CLAIM: add file | verified: cargo test | evidence: tests:review-e2e",
        ],
    );

    let fake_codex = bin.join("codex");
    fs::write(
        &fake_codex,
        "#!/usr/bin/env python3\nprint('VERDICT: PASS')\nprint('FINDINGS:')\n",
    )
    .unwrap();
    make_executable(&fake_codex);

    let path = format!(
        "{}:{}",
        bin.display(),
        std::env::var("PATH").unwrap_or_default()
    );

    Command::cargo_bin("truth-mirror")
        .unwrap()
        .current_dir(&repo)
        .env("PATH", path)
        .args([
            "--state-dir",
            ".truth-mirror",
            "review",
            "HEAD",
            "--watched-agent",
            "claude",
            "--watched-model",
            "model-a",
            "--reviewer-harness",
            "codex",
            "--reviewer-model",
            "model-b",
        ])
        .assert()
        .success();

    let ledger = fs::read_to_string(repo.join(".truth-mirror/ledger.jsonl")).unwrap();
    assert!(ledger.contains("\"verdict\":\"PASS\""));

    Command::cargo_bin("truth-mirror")
        .unwrap()
        .current_dir(&repo)
        .args(["--state-dir", ".truth-mirror", "ledger", "stats"])
        .assert()
        .success()
        .stdout(predicate::str::contains("pass=1"));
}

#[test]
fn review_strict_goal_loops_until_lie_threshold() {
    let temp = tempfile::tempdir().unwrap();
    let repo = temp.path().join("repo");
    let bin = temp.path().join("bin");
    fs::create_dir(&repo).unwrap();
    fs::create_dir(&bin).unwrap();

    git(&repo, &["init"]);
    git(&repo, &["config", "user.email", "truth@example.invalid"]);
    git(&repo, &["config", "user.name", "Truth Mirror Test"]);
    fs::write(repo.join("file.txt"), "hello\n").unwrap();
    git(&repo, &["add", "file.txt"]);
    git(
        &repo,
        &[
            "commit",
            "-m",
            "feat: add file",
            "-m",
            "CLAIM: add file | verified: cargo test | evidence: tests:strict-goal-e2e",
        ],
    );

    // Reviewer always rejects; the loop should stop the first time it exposes a lie.
    let fake_codex = bin.join("codex");
    fs::write(
        &fake_codex,
        "#!/usr/bin/env python3\nprint('VERDICT: REJECT')\nprint('FINDINGS:')\nprint('- fabricated evidence')\n",
    )
    .unwrap();
    make_executable(&fake_codex);

    let path = format!(
        "{}:{}",
        bin.display(),
        std::env::var("PATH").unwrap_or_default()
    );

    Command::cargo_bin("truth-mirror")
        .unwrap()
        .current_dir(&repo)
        .env("PATH", path)
        .args([
            "--state-dir",
            ".truth-mirror",
            "review",
            "HEAD",
            "--watched-agent",
            "claude",
            "--watched-model",
            "model-a",
            "--reviewer-harness",
            "codex",
            "--reviewer-model",
            "model-b",
            "--strict-goal",
            "--stop-after-lies",
            "1",
            "--max-passes",
            "5",
        ])
        .assert()
        .success()
        .stdout(predicate::str::contains("1 pass"))
        .stdout(predicate::str::contains("1 lie"))
        .stdout(predicate::str::contains("stopped: lies exposed"));

    let ledger = fs::read_to_string(repo.join(".truth-mirror/ledger.jsonl")).unwrap();
    assert!(ledger.contains("\"verdict\":\"REJECT\""));
}