openmoat 0.6.0

Policy checks for AI coding agents: decides allow, defer, ask or deny for every tool call from Claude Code, Codex and Cursor, configures Claude Code's and Codex's own OS sandboxes from the same policy, and keeps a local audit log.
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

//! `moat policy` grammar.

use std::path::PathBuf;

use clap::{Args, Subcommand, ValueEnum};

use super::Format;

#[derive(Debug, Subcommand)]
pub enum PolicyCommand {
    /// Validate a policy file and print a summary.
    Lint(LintArgs),
    /// Decide one action against a policy and explain the result.
    Check(CheckArgs),
    /// Print what OS layers enforce for a policy: the compiled IR and its losses.
    Compile(CompileArgs),
    /// Add what this release's default policy changed to ~/.moat/policy.yaml, keeping every
    /// line you changed; shows the diff and asks first. Refused unless run from an
    /// interactive terminal, except with --dry-run.
    Upgrade(UpgradeArgs),
    /// Install a team's signed policy pack: verify its OpenSSH signature against the
    /// keys `moat policy trust-key` trusted, then merge its rules into the policy and
    /// pin the pack. Refused unless run from an interactive terminal, and over a
    /// drifted lock.
    Install(InstallArgs),
    /// Trust an OpenSSH public key to sign policy packs (and, where the policy sets
    /// `require_signed_repo_policy`, repository policies). Refused unless run from an
    /// interactive terminal, and over a drifted lock.
    TrustKey(TrustKeyArgs),
    /// Remove an installed policy pack by name. Refused unless run from an
    /// interactive terminal, and over a drifted lock.
    Remove(RemoveArgs),
}

#[derive(Debug, Args)]
pub struct InstallArgs {
    /// The pack: a policy file with only `version`, `deny`, `ask` and `allow`.
    pub pack: PathBuf,

    /// Its detached signature (`ssh-keygen -Y sign -n openmoat-policy`). Defaults
    /// to the pack's path with `.sig` appended.
    #[arg(long, value_name = "PATH")]
    pub sig: Option<PathBuf>,

    /// The name the pack is installed and its rules prefixed under (`pack:<name>:`).
    /// Defaults to the file name without its extension.
    #[arg(long)]
    pub name: Option<String>,
}

#[derive(Debug, Args)]
pub struct TrustKeyArgs {
    /// The public key file (`id_ed25519.pub`).
    pub key: PathBuf,

    /// Who the key belongs to, as signatures will name them (`alice@example.com`).
    #[arg(long)]
    pub name: String,
}

#[derive(Debug, Args)]
pub struct RemoveArgs {
    /// The installed pack's name.
    pub name: String,
}

#[derive(Debug, Args)]
pub struct LintArgs {
    /// Policy file to validate. Defaults to the installed user policy.
    pub file: Option<PathBuf>,
}

#[derive(Debug, Args)]
pub struct CheckArgs {
    /// The action: a shell command, a path, a URL or an MCP tool name, depending on --kind.
    pub action: String,

    /// Policy file to evaluate against. Defaults to the installed user policy.
    #[arg(long, short)]
    pub policy: Option<PathBuf>,

    /// Kind of action.
    #[arg(long, value_enum, default_value_t = ActionKind::Shell)]
    pub kind: ActionKind,

    /// Trusted project root that `${project}` expands to. Defaults to the git root of --cwd.
    #[arg(long)]
    pub project: Option<PathBuf>,

    /// Working directory the action runs in. Defaults to the current directory.
    #[arg(long)]
    pub cwd: Option<PathBuf>,

    /// Output format.
    #[arg(long, value_enum, default_value_t = Format::Text)]
    pub format: Format,
}

#[derive(Debug, Args)]
pub struct CompileArgs {
    /// Policy file to compile. Defaults to the installed user policy.
    #[arg(long, short)]
    pub policy: Option<PathBuf>,

    /// Trusted project root that `${project}` expands to. Defaults to the git root of --cwd.
    #[arg(long)]
    pub project: Option<PathBuf>,

    /// Working directory to compile for. Defaults to the current directory.
    #[arg(long)]
    pub cwd: Option<PathBuf>,

    /// Output format.
    #[arg(long, value_enum, default_value_t = Format::Text)]
    pub format: Format,
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, ValueEnum)]
pub enum ActionKind {
    Shell,
    FsRead,
    FsWrite,
    Net,
    /// A URL read by a host fetch tool (`WebFetch`).
    Fetch,
    Mcp,
}

#[derive(Debug, Args)]
pub struct UpgradeArgs {
    /// Show the changes without writing anything; needs no terminal.
    #[arg(long, conflicts_with = "undo")]
    pub dry_run: bool,

    /// Apply without asking (still only from a terminal).
    #[arg(long, short = 'y')]
    pub yes: bool,

    /// Restore the policy the last upgrade replaced, byte for byte.
    #[arg(long)]
    pub undo: bool,
}