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agent stats: track tool calls by type with EWMA, add Stats pane

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- RunStats now includes tool_calls_by_type HashMap
- AutoAgent tracks runs, last_stats, and EWMA for tool calls/failures
- Removed duplicate stats fields from individual agent structs
- Fixed provenance to use bare agent name (no "agent:" prefix)
- Subconscious screen now displays both agent types consistently
- Added Stats pane showing tool call breakdown sorted by count

Co-Authored-By: Proof of Concept <poc@bcachefs.org>
This commit is contained in:
Kent Overstreet 2026-04-11 22:12:46 -04:00
parent e9e7458013
commit 314ae9c4cb
4 changed files with 169 additions and 55 deletions
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145
src/user/subconscious.rs
View file

@ -18,10 +18,10 @@ use super::{App, ScreenView, screen_legend};
use super::widgets::{SectionTree, SectionView, section_to_view, pane_block_focused, tree_legend, format_age, format_ts_age};
#[derive(Clone, Copy, PartialEq)]
enum Pane { Agents, Outputs, History, Context }
enum Pane { Agents, Outputs, Stats, History, Context }
// Clockwise: top-left → right → bottom-left → middle-left
const PANE_ORDER: &[Pane] = &[Pane::Agents, Pane::Context, Pane::History, Pane::Outputs];
const PANE_ORDER: &[Pane] = &[Pane::Agents, Pane::Context, Pane::History, Pane::Stats, Pane::Outputs];
pub(crate) struct SubconsciousScreen {
focus: Pane,
@ -29,6 +29,7 @@ pub(crate) struct SubconsciousScreen {
output_tree: SectionTree,
context_tree: SectionTree,
history_scroll: super::scroll_pane::ScrollPaneState,
stats_scroll: super::scroll_pane::ScrollPaneState,
}
impl SubconsciousScreen {
@ -41,6 +42,7 @@ impl SubconsciousScreen {
output_tree: SectionTree::new(),
context_tree: SectionTree::new(),
history_scroll: super::scroll_pane::ScrollPaneState::new(),
stats_scroll: super::scroll_pane::ScrollPaneState::new(),
}
}
@ -87,6 +89,13 @@ impl ScreenView for SubconsciousScreen {
_ => {}
}
Pane::Outputs => self.output_tree.handle_nav(code, &output_sections, area.height),
Pane::Stats => match code {
KeyCode::Up => self.stats_scroll.scroll_up(3),
KeyCode::Down => self.stats_scroll.scroll_down(3),
KeyCode::PageUp => self.stats_scroll.scroll_up(20),
KeyCode::PageDown => self.stats_scroll.scroll_down(20),
_ => {}
}
Pane::History => match code {
KeyCode::Up => self.history_scroll.scroll_up(3),
KeyCode::Down => self.history_scroll.scroll_down(3),
@ -106,7 +115,7 @@ impl ScreenView for SubconsciousScreen {
Constraint::Percentage(62),
]).areas(area);
// Left column: agent list (top) | outputs (middle) | history (bottom, main)
// Left column: agent list | outputs | stats | history
let unc_count = if app.unconscious_state.is_empty() { 0 }
else { app.unconscious_state.len() + 1 }; // +1 for separator
let agent_count = (app.agent_state.len() + unc_count).max(1) as u16;
@ -114,15 +123,21 @@ impl ScreenView for SubconsciousScreen {
let output_lines = app.agent_state.get(self.selected())
.map(|s| s.state.values().map(|v| v.lines().count() + 1).sum::<usize>())
.unwrap_or(0);
let output_height = (output_lines as u16 + 2).min(left.height / 4).max(3);
let [list_area, output_area, history_area] = Layout::vertical([
let output_height = (output_lines as u16 + 2).min(left.height / 5).max(3);
let stats_lines = self.selected_stats(app)
.map(|s| s.tool_calls_by_type.len())
.unwrap_or(0);
let stats_height = (stats_lines as u16 + 2).min(left.height / 5).max(3);
let [list_area, output_area, stats_area, history_area] = Layout::vertical([
Constraint::Length(list_height),
Constraint::Length(output_height),
Constraint::Length(stats_height),
Constraint::Min(5),
]).areas(left);
self.draw_list(frame, list_area, app);
self.draw_outputs(frame, output_area, app);
self.draw_stats(frame, stats_area, app);
self.draw_history(frame, history_area, app);
self.draw_context(frame, right, &context_sections, app);
}
@ -147,6 +162,7 @@ impl SubconsciousScreen {
self.output_tree = SectionTree::new();
self.context_tree = SectionTree::new();
self.history_scroll = super::scroll_pane::ScrollPaneState::new();
self.stats_scroll = super::scroll_pane::ScrollPaneState::new();
}
/// Get the agent Arc for the selected item, whether subconscious or unconscious.
@ -175,6 +191,19 @@ impl SubconsciousScreen {
.unwrap_or(&[])
}
/// Get last run stats for the selected agent.
fn selected_stats<'a>(&self, app: &'a App) -> Option<&'a crate::agent::oneshot::RunStats> {
let idx = self.selected();
let sub_count = app.agent_state.len();
if idx < sub_count {
return app.agent_state.get(idx)
.and_then(|s| s.last_stats.as_ref());
}
idx.checked_sub(sub_count + 1)
.and_then(|i| app.unconscious_state.get(i))
.and_then(|s| s.last_stats.as_ref())
}
fn output_sections(&self, app: &App) -> Vec<SectionView> {
let snap = match app.agent_state.get(self.selected()) {
Some(s) => s,
@ -211,37 +240,39 @@ impl SubconsciousScreen {
fn draw_list(&mut self, frame: &mut Frame, area: Rect, app: &App) {
let mut items: Vec<ListItem> = app.agent_state.iter().map(|snap| {
if !snap.enabled {
ListItem::from(Line::from(vec![
Span::styled(&snap.name, Style::default().fg(Color::DarkGray)),
Span::styled(" ○ off", Style::default().fg(Color::DarkGray)),
]))
let (name_color, indicator) = if !snap.enabled {
(Color::DarkGray, "○")
} else if snap.running {
ListItem::from(Line::from(vec![
Span::styled(&snap.name, Style::default().fg(Color::Green)),
Span::styled(" ● ", Style::default().fg(Color::Green)),
Span::styled(
format!("p:{} t:{}", snap.current_phase, snap.turn),
Style::default().fg(Color::DarkGray),
),
]))
(Color::Green, "●")
} else {
let ago = snap.last_run_secs_ago
.map(|s| format_age(s))
.unwrap_or_else(|| "—".to_string());
let entries = snap.forked_agent.as_ref()
.and_then(|a| a.context.try_lock().ok())
.map(|ctx| ctx.conversation().len().saturating_sub(snap.fork_point))
.unwrap_or(0);
ListItem::from(Line::from(vec![
Span::styled(&snap.name, Style::default().fg(Color::Gray)),
Span::styled(" ○ ", Style::default().fg(Color::DarkGray)),
Span::styled(
format!("{} {}e", ago, entries),
Style::default().fg(Color::DarkGray),
),
]))
}
(Color::Gray, "○")
};
let ago = snap.last_run_secs_ago
.map(|s| format_age(s))
.unwrap_or_else(|| "—".to_string());
let detail = if snap.running {
format!("p:{} t:{}", snap.current_phase, snap.turn)
} else if !snap.enabled {
"off".to_string()
} else if let Some(ref stats) = snap.last_stats {
let fail_str = if stats.tool_failures > 0 {
format!(" {}fail", stats.tool_failures)
} else {
String::new()
};
format!("×{} {} {}tc{} avg:{:.1}",
snap.runs, ago,
stats.tool_calls, fail_str,
snap.tool_calls_ewma)
} else {
format!("×{} {}", snap.runs, ago)
};
ListItem::from(Line::from(vec![
Span::styled(&snap.name, Style::default().fg(name_color)),
Span::styled(format!(" {} ", indicator),
Style::default().fg(if snap.running { Color::Green } else { Color::DarkGray })),
Span::styled(detail, Style::default().fg(Color::DarkGray)),
]))
}).collect();
// Unconscious agents (graph maintenance)
@ -266,9 +297,15 @@ impl SubconsciousScreen {
} else if !snap.enabled {
"off".to_string()
} else if let Some(ref stats) = snap.last_stats {
format!("×{} {} {}msg {}tc",
let fail_str = if stats.tool_failures > 0 {
format!(" {}fail", stats.tool_failures)
} else {
String::new()
};
format!("×{} {} {}tc{} avg:{:.1}",
snap.runs, ago,
stats.messages, stats.tool_calls)
stats.tool_calls, fail_str,
snap.tool_calls_ewma)
} else {
format!("×{} {}", snap.runs, ago)
};
@ -316,6 +353,42 @@ impl SubconsciousScreen {
frame.render_stateful_widget(widget, area, &mut self.output_tree.scroll);
}
fn draw_stats(&mut self, frame: &mut Frame, area: Rect, app: &App) {
let dim = Style::default().fg(Color::DarkGray);
let name_style = Style::default().fg(Color::Cyan);
let count_style = Style::default().fg(Color::Yellow);
let mut lines: Vec<Line> = Vec::new();
if let Some(stats) = self.selected_stats(app) {
// Sort by count descending
let mut tools: Vec<_> = stats.tool_calls_by_type.iter().collect();
tools.sort_by(|a, b| b.1.cmp(a.1));
for (name, count) in tools {
lines.push(Line::from(vec![
Span::styled(format!(" {:>3} ", count), count_style),
Span::styled(name.as_str(), name_style),
]));
}
}
if lines.is_empty() {
lines.push(Line::styled(" (no tool calls)", dim));
}
let mut block = pane_block_focused("tool calls", self.focus == Pane::Stats);
if self.focus == Pane::Stats {
block = block.title_bottom(Line::styled(
" ↑↓:scroll PgUp/Dn ",
Style::default().fg(Color::DarkGray),
));
}
let widget = super::scroll_pane::ScrollPane::new(&lines)
.block(block);
frame.render_stateful_widget(widget, area, &mut self.stats_scroll);
}
fn draw_history(&mut self, frame: &mut Frame, area: Rect, app: &App) {
let dim = Style::default().fg(Color::DarkGray);
let key_style = Style::default().fg(Color::Yellow);