agent ui: live event panel via SSE + stream-json

This commit is contained in:
müde 2026-05-15 15:01:26 +02:00
parent 3c9d42b2a7
commit 9eab28a716
8 changed files with 277 additions and 33 deletions

View file

@ -1,12 +1,15 @@
use std::path::{Path, PathBuf};
use std::process::Stdio;
use std::sync::{Arc, Mutex};
use std::time::Duration;
use anyhow::{Result, bail};
use clap::{Parser, Subcommand};
use hive_ag3nt::events::{Bus, LiveEvent};
use hive_ag3nt::login::{self, LoginState};
use hive_ag3nt::{DEFAULT_SOCKET, DEFAULT_WEB_PORT, client, mcp, web_ui};
use hive_sh4re::{AgentRequest, AgentResponse};
use tokio::io::{AsyncBufReadExt, BufReader};
use tokio::process::Command;
#[derive(Parser)]
@ -61,14 +64,16 @@ async fn main() -> Result<()> {
tracing::info!(state = ?initial, claude_dir = %claude_dir.display(), "harness boot");
let login_state = Arc::new(Mutex::new(initial));
let ui_state = login_state.clone();
let bus = Bus::new();
let ui_bus = bus.clone();
tokio::spawn(async move {
if let Err(e) = web_ui::serve(label, port, ui_state).await {
if let Err(e) = web_ui::serve(label, port, ui_state, ui_bus).await {
tracing::error!(error = ?e, "web ui failed");
}
});
match initial {
LoginState::Online => {
serve(&cli.socket, Duration::from_millis(poll_ms), login_state).await
serve(&cli.socket, Duration::from_millis(poll_ms), login_state, bus).await
}
LoginState::NeedsLogin => {
// Partial-run mode: keep the harness alive (so the web UI
@ -77,7 +82,7 @@ async fn main() -> Result<()> {
// from the dashboard PTY path in step 4 or via
// `root-login` + `claude auth login` in the meantime)
// transitions us into the turn loop without a restart.
needs_login_loop(&cli.socket, &claude_dir, login_state, poll_ms).await
needs_login_loop(&cli.socket, &claude_dir, login_state, poll_ms, bus).await
}
}
}
@ -103,6 +108,7 @@ async fn needs_login_loop(
claude_dir: &Path,
state: Arc<Mutex<LoginState>>,
poll_ms: u64,
bus: Bus,
) -> Result<()> {
tracing::warn!(
claude_dir = %claude_dir.display(),
@ -114,12 +120,17 @@ async fn needs_login_loop(
if login::has_session(claude_dir) {
tracing::info!("claude session detected — entering turn loop");
*state.lock().unwrap() = LoginState::Online;
return serve(socket, Duration::from_millis(poll_ms), state).await;
return serve(socket, Duration::from_millis(poll_ms), state, bus).await;
}
}
}
async fn serve(socket: &Path, interval: Duration, state: Arc<Mutex<LoginState>>) -> Result<()> {
async fn serve(
socket: &Path,
interval: Duration,
state: Arc<Mutex<LoginState>>,
bus: Bus,
) -> Result<()> {
tracing::info!(socket = %socket.display(), "hive-ag3nt serve");
let _ = state; // reserved for future state transitions (turn-loop -> needs-login)
let mcp_config = write_mcp_config(socket).await?;
@ -129,10 +140,28 @@ async fn serve(socket: &Path, interval: Duration, state: Arc<Mutex<LoginState>>)
match recv {
Ok(AgentResponse::Message { from, body }) => {
tracing::info!(%from, %body, "inbox");
bus.emit(LiveEvent::TurnStart {
from: from.clone(),
body: body.clone(),
});
let prompt = format_wake_prompt(&label, &from, &body);
match invoke_claude(&prompt, &mcp_config).await {
Ok(out) => tracing::info!(stdout = %out.trim(), "claude turn finished"),
Err(e) => tracing::warn!(error = %format!("{e:#}"), "claude turn failed"),
let outcome = run_turn(&prompt, &mcp_config, &bus).await;
match outcome {
Ok(()) => {
bus.emit(LiveEvent::TurnEnd {
ok: true,
note: None,
});
tracing::info!("claude turn finished");
}
Err(e) => {
let note = format!("{e:#}");
bus.emit(LiveEvent::TurnEnd {
ok: false,
note: Some(note.clone()),
});
tracing::warn!(error = %note, "claude turn failed");
}
}
}
Ok(AgentResponse::Empty) => {}
@ -173,15 +202,20 @@ fn format_wake_prompt(label: &str, from: &str, body: &str) -> String {
)
}
async fn invoke_claude(prompt: &str, mcp_config: &Path) -> Result<String> {
// Whitelist model: `--tools` restricts which built-ins exist in the
// session (omitting WebFetch/WebSearch/Task means claude literally
// can't invoke them); `--allowedTools` auto-approves the same set
// plus the hyperhive MCP surface so there's no permission prompt
// mid-turn. A finer-grained allow-list system for Bash command
// patterns is on the backlog (PLAN.md polish).
let out = Command::new("claude")
/// Spawn `claude` for one turn and stream its `stream-json` stdout into
/// the live event bus. `--verbose` is required by claude-code when pairing
/// `--print` with `--output-format stream-json`. Each stdout line is one
/// JSON event; we broadcast the parsed value (or a `Note` fallback on
/// parse error so the UI doesn't silently lose information). The tool
/// whitelist is the same as before: omit WebFetch/WebSearch/Task; allow
/// the hyperhive MCP surface auto-approved. Bash pattern allow-list is on
/// the backlog (CLAUDE.md).
async fn run_turn(prompt: &str, mcp_config: &Path, bus: &Bus) -> Result<()> {
let mut child = Command::new("claude")
.arg("--print")
.arg("--verbose")
.arg("--output-format")
.arg("stream-json")
.arg("--model")
.arg("haiku")
.arg("--mcp-config")
@ -191,20 +225,38 @@ async fn invoke_claude(prompt: &str, mcp_config: &Path) -> Result<String> {
.arg("--allowedTools")
.arg(mcp::allowed_tools_arg())
.arg(prompt)
.output()
.await?;
if !out.status.success() {
bail!(
"claude exited {}: {}",
out.status,
String::from_utf8_lossy(&out.stderr).trim()
);
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.spawn()?;
let stdout = child.stdout.take().expect("piped stdout");
let stderr = child.stderr.take().expect("piped stderr");
let bus_out = bus.clone();
let bus_err = bus.clone();
let pump_stdout = tokio::spawn(async move {
let mut reader = BufReader::new(stdout).lines();
while let Ok(Some(line)) = reader.next_line().await {
match serde_json::from_str::<serde_json::Value>(&line) {
Ok(v) => bus_out.emit(LiveEvent::Stream(v)),
Err(_) => bus_out.emit(LiveEvent::Note(format!("(non-json) {line}"))),
}
}
});
let pump_stderr = tokio::spawn(async move {
let mut reader = BufReader::new(stderr).lines();
while let Ok(Some(line)) = reader.next_line().await {
bus_err.emit(LiveEvent::Note(format!("stderr: {line}")));
}
});
let status = child.wait().await?;
let _ = pump_stdout.await;
let _ = pump_stderr.await;
if !status.success() {
bail!("claude exited {status}");
}
let text = String::from_utf8_lossy(&out.stdout).trim().to_owned();
if text.is_empty() {
bail!("claude produced empty output");
}
Ok(text)
Ok(())
}
/// Drop the per-agent MCP config on disk so the turn loop can hand its path