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Agent log screen: show agent output, not hook log

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spawn_agent() now returns SpawnResult { pid, log_path } so the
log path is known at spawn time. No more filesystem scanning.
AgentInfo carries log_path, TUI reads it directly.

F2 → Enter shows the actual agent log (stdout/stderr from the
poc-memory agent process), not the hook orchestration log.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>
This commit is contained in:
Kent Overstreet 2026-04-02 01:04:54 -04:00
parent 1c190a3925
commit a90bd4fd47
3 changed files with 65 additions and 79 deletions
Download patch file Download diff file Expand all files Collapse all files

89
src/agent/tui.rs
View file

@ -1089,9 +1089,9 @@ impl App {
frame.render_widget(para, size);
}
fn draw_agent_log(&self, frame: &mut Frame, size: Rect, output_dir: &std::path::Path) {
fn draw_agent_log(&self, frame: &mut Frame, size: Rect, _output_dir: &std::path::Path) {
let name = AGENT_NAMES.get(self.agent_selected).unwrap_or(&"?");
let agent_dir = output_dir.join(name);
let agent = self.agent_state.iter().find(|a| a.name == *name);
let mut lines: Vec<Line> = Vec::new();
let section = Style::default().fg(Color::Yellow);
let hint = Style::default().fg(Color::DarkGray).add_modifier(Modifier::ITALIC);
@ -1101,73 +1101,42 @@ impl App {
lines.push(Line::styled(" (Esc/← back, PgUp/PgDn scroll)", hint));
lines.push(Line::raw(""));
// Show pid status
let live = crate::subconscious::knowledge::scan_pid_files(&agent_dir, 0);
if live.is_empty() {
lines.push(Line::styled(" Status: idle", Style::default().fg(Color::DarkGray)));
} else {
for (phase, pid) in &live {
// Show pid status from state
match agent.and_then(|a| a.pid) {
Some(pid) => {
let phase = agent.and_then(|a| a.phase.as_deref()).unwrap_or("?");
lines.push(Line::from(vec![
Span::styled(" Status: ", Style::default()),
Span::styled(format!("● running pid {} phase: {}", pid, phase),
Style::default().fg(Color::Green)),
]));
}
}
lines.push(Line::raw(""));
// Show output files
lines.push(Line::styled("── Output Files ──", section));
let mut files: Vec<_> = std::fs::read_dir(&agent_dir)
.into_iter().flatten().flatten()
.filter(|e| {
let n = e.file_name().to_string_lossy().to_string();
!n.starts_with("pid-") && !n.starts_with("transcript-offset")
&& !n.starts_with("chunks-") && !n.starts_with("seen")
})
.collect();
files.sort_by_key(|e| std::cmp::Reverse(
e.metadata().ok().and_then(|m| m.modified().ok())
.unwrap_or(std::time::SystemTime::UNIX_EPOCH)
));
for entry in files.iter().take(10) {
let name = entry.file_name().to_string_lossy().to_string();
let ago = entry.metadata().ok()
.and_then(|m| m.modified().ok())
.and_then(|t| t.elapsed().ok())
.map(|d| Self::format_duration(d))
.unwrap_or_else(|| "?".into());
let size = entry.metadata().ok().map(|m| m.len()).unwrap_or(0);
lines.push(Line::raw(format!(" {:<30} {:>6}B {}", name, size, ago)));
}
// Show hook log tail
lines.push(Line::raw(""));
lines.push(Line::styled("── Hook Log ──", section));
let log_dir = dirs::home_dir().unwrap_or_default().join(".consciousness/logs");
// Find latest hook log
if let Ok(mut entries) = std::fs::read_dir(&log_dir) {
let mut logs: Vec<_> = entries.by_ref().flatten()
.filter(|e| e.file_name().to_string_lossy().starts_with("hook-"))
.collect();
logs.sort_by_key(|e| std::cmp::Reverse(
e.metadata().ok().and_then(|m| m.modified().ok())
.unwrap_or(std::time::SystemTime::UNIX_EPOCH)
));
if let Some(log_entry) = logs.first() {
if let Ok(content) = std::fs::read_to_string(log_entry.path()) {
// Show last ~30 lines
let log_lines: Vec<&str> = content.lines().collect();
let start = log_lines.len().saturating_sub(30);
for line in &log_lines[start..] {
lines.push(Line::raw(format!(" {}", line)));
}
}
None => {
lines.push(Line::styled(" Status: idle", Style::default().fg(Color::DarkGray)));
}
}
// Show log path
if let Some(log_path) = agent.and_then(|a| a.log_path.as_ref()) {
lines.push(Line::raw(format!(" Log: {}", log_path.display())));
}
lines.push(Line::raw(""));
// Show agent log tail
lines.push(Line::styled("── Agent Log ──", section));
if let Some(content) = agent
.and_then(|a| a.log_path.as_ref())
.and_then(|p| std::fs::read_to_string(p).ok())
{
let log_lines: Vec<&str> = content.lines().collect();
let start = log_lines.len().saturating_sub(40);
for line in &log_lines[start..] {
lines.push(Line::raw(format!(" {}", line)));
}
} else {
lines.push(Line::styled(" (no log available)", hint));
}
let block = Block::default()
.title_top(Line::from(SCREEN_LEGEND).left_aligned())
.title_top(Line::from(format!(" {} ", name)).right_aligned())

41
src/subconscious/hook.rs
View file

@ -140,6 +140,8 @@ pub struct AgentInfo {
pub name: &'static str,
pub pid: Option<u32>,
pub phase: Option<String>,
/// Path to the most recent agent log file.
pub log_path: Option<std::path::PathBuf>,
}
/// Persistent state for the agent orchestration cycle.
@ -164,7 +166,7 @@ impl AgentCycleState {
.create(true).append(true).open(log_path).ok();
let agents = AGENT_CYCLE_NAMES.iter()
.map(|&name| AgentInfo { name, pid: None, phase: None })
.map(|&name| AgentInfo { name, pid: None, phase: None, log_path: None })
.collect();
AgentCycleState {
@ -185,10 +187,14 @@ impl AgentCycleState {
}
}
fn update_agent(&mut self, name: &str, pid: Option<u32>, phase: Option<String>) {
fn update_agent(&mut self, name: &str, pid: Option<u32>, phase: Option<String>,
log_path: Option<std::path::PathBuf>) {
if let Some(agent) = self.agents.iter_mut().find(|a| a.name == name) {
agent.pid = pid;
agent.phase = phase;
if log_path.is_some() {
agent.log_path = log_path;
}
}
}
@ -266,10 +272,10 @@ impl AgentCycleState {
let live = crate::agents::knowledge::scan_pid_files(&state_dir, timeout);
if let Some((phase, pid)) = live.first() {
self.update_agent("surface-observe", Some(*pid), Some(phase.clone()));
self.update_agent("surface-observe", Some(*pid), Some(phase.clone()), None);
self.log(format_args!("alive pid-{}: phase={}\n", pid, phase));
} else {
self.update_agent("surface-observe", None, None);
self.update_agent("surface-observe", None, None, None);
}
// Read surfaced keys
@ -304,11 +310,12 @@ impl AgentCycleState {
if transcript.size > 0 {
fs::write(&offset_path, transcript.size.to_string()).ok();
}
let pid = crate::agents::knowledge::spawn_agent(
let spawned = crate::agents::knowledge::spawn_agent(
"surface-observe", &state_dir, &session.session_id);
self.update_agent("surface-observe",
pid, Some("surface".into()));
self.log(format_args!("spawned agent {:?}\n", pid));
spawned.as_ref().map(|s| s.pid), Some("surface".into()),
spawned.as_ref().map(|s| s.log_path.clone()));
self.log(format_args!("spawned agent {:?}\n", spawned.as_ref().map(|s| s.pid)));
}
// Wait if agent is significantly behind
@ -353,7 +360,7 @@ impl AgentCycleState {
let live = crate::agents::knowledge::scan_pid_files(&state_dir, 300);
if let Some((phase, pid)) = live.first() {
self.update_agent("reflect", Some(*pid), Some(phase.clone()));
self.update_agent("reflect", Some(*pid), Some(phase.clone()), None);
self.log(format_args!("reflect: already running pid {}\n", pid));
return None;
}
@ -373,10 +380,12 @@ impl AgentCycleState {
}
fs::write(&offset_path, transcript.size.to_string()).ok();
let pid = crate::agents::knowledge::spawn_agent(
let spawned = crate::agents::knowledge::spawn_agent(
"reflect", &state_dir, &session.session_id);
self.update_agent("reflect", pid, Some("step-0".into()));
self.log(format_args!("reflect: spawned {:?}\n", pid));
self.update_agent("reflect",
spawned.as_ref().map(|s| s.pid), Some("step-0".into()),
spawned.as_ref().map(|s| s.log_path.clone()));
self.log(format_args!("reflect: spawned {:?}\n", spawned.as_ref().map(|s| s.pid)));
reflection
}
@ -397,16 +406,18 @@ impl AgentCycleState {
let live = crate::agents::knowledge::scan_pid_files(&state_dir, 300);
if let Some((phase, pid)) = live.first() {
self.update_agent("journal", Some(*pid), Some(phase.clone()));
self.update_agent("journal", Some(*pid), Some(phase.clone()), None);
self.log(format_args!("journal: already running pid {}\n", pid));
return;
}
fs::write(&offset_path, transcript.size.to_string()).ok();
let pid = crate::agents::knowledge::spawn_agent(
let spawned = crate::agents::knowledge::spawn_agent(
"journal", &state_dir, &session.session_id);
self.update_agent("journal", pid, Some("step-0".into()));
self.log(format_args!("journal: spawned {:?}\n", pid));
self.update_agent("journal",
spawned.as_ref().map(|s| s.pid), Some("step-0".into()),
spawned.as_ref().map(|s| s.log_path.clone()));
self.log(format_args!("journal: spawned {:?}\n", spawned.as_ref().map(|s| s.pid)));
}
} // end impl AgentCycleState (cycle methods)

14
src/subconscious/knowledge.rs
View file

@ -252,11 +252,17 @@ pub fn scan_pid_files(state_dir: &std::path::Path, timeout_secs: u64) -> Vec<(St
/// Spawn an agent asynchronously. Writes the pid file before returning
/// so the caller immediately sees the agent as running.
/// Spawn result: pid and path to the agent's log file.
pub struct SpawnResult {
pub pid: u32,
pub log_path: PathBuf,
}
pub fn spawn_agent(
agent_name: &str,
state_dir: &std::path::Path,
session_id: &str,
) -> Option<u32> {
) -> Option<SpawnResult> {
let def = super::defs::get_def(agent_name)?;
let first_phase = def.steps.first()
.map(|s| s.phase.as_str())
@ -265,8 +271,8 @@ pub fn spawn_agent(
let log_dir = dirs::home_dir().unwrap_or_default()
.join(format!(".consciousness/logs/{}", agent_name));
fs::create_dir_all(&log_dir).ok();
let agent_log = fs::File::create(
log_dir.join(format!("{}.log", store::compact_timestamp())))
let log_path = log_dir.join(format!("{}.log", store::compact_timestamp()));
let agent_log = fs::File::create(&log_path)
.unwrap_or_else(|_| fs::File::create("/dev/null").unwrap());
let child = std::process::Command::new("poc-memory")
@ -281,7 +287,7 @@ pub fn spawn_agent(
let pid = child.id();
let pid_path = state_dir.join(format!("pid-{}", pid));
fs::write(&pid_path, first_phase).ok();
Some(pid)
Some(SpawnResult { pid, log_path })
}
fn run_one_agent_inner(