teamctl 0.1.2

Declarative CLI for running persistent AI agent teams.
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

//! Diff-based reload.
//!
//! Hash each agent's rendered artifact set; if the hash differs from the
//! last-applied snapshot, restart that agent. Unchanged agents are left
//! alone. The snapshot lives at `state/applied.json`.

use std::collections::BTreeMap;
use std::fs;
use std::path::Path;

use anyhow::{Context, Result};
use serde::{Deserialize, Serialize};
use team_core::compose::Compose;
use team_core::render::render_agent;
use team_core::supervisor::{AgentSpec, AgentState, Supervisor, TmuxSupervisor};

#[derive(Default, Serialize, Deserialize)]
struct Applied {
    agents: BTreeMap<String, String>, // id -> hash
}

pub fn run(root: &Path) -> Result<()> {
    let compose = super::load(root)?;
    let errs = team_core::validate::validate(&compose);
    if !errs.is_empty() {
        for e in &errs {
            eprintln!("error: {e}");
        }
        anyhow::bail!("{} validation error(s) — fix before reload", errs.len());
    }

    let applied_path = compose.root.join("state/applied.json");
    let previous: Applied = fs::read_to_string(&applied_path)
        .ok()
        .and_then(|s| serde_json::from_str(&s).ok())
        .unwrap_or_default();

    let current = hash_agents(&compose);
    let diff = diff_applied(&previous, &current);

    if diff.added.is_empty() && diff.removed.is_empty() && diff.changed.is_empty() {
        println!("no changes");
        return Ok(());
    }

    // Re-render (cheap, idempotent) and (re)register agents on add/change.
    super::up::ensure_wrapper_and_dirs(&compose)?;
    super::up::render_all_public(&compose)?;
    super::up::register_all_public(&compose)?;

    let sup = TmuxSupervisor;
    for id in &diff.removed {
        let (project, agent) = id.split_once(':').unwrap_or((id.as_str(), ""));
        let spec = AgentSpec {
            project: project.into(),
            agent: agent.into(),
            tmux_session: format!("{}{project}-{agent}", compose.global.supervisor.tmux_prefix),
            wrapper: compose.root.join("bin/agent-wrapper.sh"),
            cwd: compose.root.clone(),
            env_file: compose
                .root
                .join(format!("state/envs/{project}-{agent}.env")),
        };
        sup.down(&spec)?;
        println!("removed · {id}");
    }
    for h in compose.agents() {
        let id = h.id();
        let spec = AgentSpec::from_handle(h, &compose.root, &compose.global.supervisor.tmux_prefix);
        if diff.added.contains(&id) {
            sup.up(&spec)?;
            println!("added   · {id}");
        } else if diff.changed.contains(&id) {
            sup.down(&spec)?;
            sup.up(&spec)?;
            println!("changed · {id}");
        } else if sup.state(&spec)? == AgentState::Stopped {
            sup.up(&spec)?;
            println!("started · {id}");
        }
    }

    fs::create_dir_all(applied_path.parent().unwrap())?;
    fs::write(&applied_path, serde_json::to_string_pretty(&current)?)
        .context("write applied snapshot")?;
    Ok(())
}

struct Diff {
    added: Vec<String>,
    removed: Vec<String>,
    changed: Vec<String>,
}

fn diff_applied(prev: &Applied, next: &Applied) -> Diff {
    let mut added = Vec::new();
    let mut removed = Vec::new();
    let mut changed = Vec::new();
    for (k, v) in &next.agents {
        match prev.agents.get(k) {
            None => added.push(k.clone()),
            Some(p) if p != v => changed.push(k.clone()),
            _ => {}
        }
    }
    for k in prev.agents.keys() {
        if !next.agents.contains_key(k) {
            removed.push(k.clone());
        }
    }
    Diff {
        added,
        removed,
        changed,
    }
}

fn hash_agents(compose: &Compose) -> Applied {
    let bin = super::team_mcp_bin().display().to_string();
    let mut agents = BTreeMap::new();
    for h in compose.agents() {
        let (env, mcp) = render_agent(compose, h, &bin);
        let prompt_bytes = h
            .spec
            .role_prompt
            .as_ref()
            .and_then(|p| fs::read(compose.root.join(p)).ok())
            .unwrap_or_default();
        let mut hasher = std::collections::hash_map::DefaultHasher::new();
        use std::hash::{Hash, Hasher};
        env.hash(&mut hasher);
        mcp.hash(&mut hasher);
        prompt_bytes.hash(&mut hasher);
        agents.insert(h.id(), format!("{:016x}", hasher.finish()));
    }
    Applied { agents }
}