stats: per-agent /stats page with chart.js trends + breakdowns

new hive-ag3nt::stats module reads turn_stats.sqlite read-only and
aggregates over 24h/7d/30d windows (hourly/daily buckets) — turn
rate, p50/p95/avg duration, ctx tokens (avg/max), cost token
components, top tools, wake mix, result mix. served by the agent
itself so per-MCP extensions can register more providers without
the host knowing their schemas.

/stats route + /api/stats?window=... on the per-agent web ui.
chart.js v4.4.4 pulled from jsdelivr (SRI hash deferred). nav
links: 📊 chip on the dashboard container row + 📊 stats → on
the per-agent header.

todo housekeeping: softened damocles-area note at the top,
new reverse-proxy + deferred reminder-rollup items, removed
the two telemetry-ui items absorbed by this page.
This commit is contained in:
müde 2026-05-19 00:27:01 +02:00
parent f9f1346eae
commit d3f90f4cc0
8 changed files with 930 additions and 3 deletions

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@ -8,6 +8,7 @@
<body>
<pre class="banner" id="banner">░▒▓█▓▒░ … ░▒▓█▓▒░ hyperhive ag3nt ░▒▓█▓▒░</pre>
<h2 id="title">◆ … ◆</h2>
<p class="meta"><a href="/stats" style="color: var(--cyan); text-decoration: none;">📊 stats →</a></p>
<div id="status">
<p class="meta">loading…</p>

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@ -0,0 +1,76 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>hyperhive agent — stats</title>
<link rel="stylesheet" href="/static/agent.css">
<style>
.stats-nav { display: flex; gap: 0.75rem; align-items: baseline; margin-bottom: 0.5rem; }
.stats-nav a { color: var(--cyan); text-decoration: none; }
.stats-nav a:hover { text-decoration: underline; }
.window-tabs { display: flex; gap: 0.4rem; margin: 0.5rem 0 1rem; }
.window-tabs button {
background: var(--bg-elev); color: var(--fg);
border: 1px solid var(--border); padding: 0.3rem 0.8rem;
font-family: inherit; cursor: pointer;
}
.window-tabs button.active { background: var(--purple-dim); border-color: var(--purple); color: var(--purple); }
.summary { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.summary .chip {
background: var(--bg-elev); border: 1px solid var(--border);
padding: 0.4rem 0.8rem; border-radius: 4px;
}
.summary .chip .label { color: var(--muted); margin-right: 0.5rem; }
.summary .chip .value { color: var(--cyan); font-weight: bold; }
.grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
gap: 1rem;
}
.card {
background: var(--bg-elev);
border: 1px solid var(--border);
padding: 0.75rem 1rem 1rem;
border-radius: 4px;
}
.card h3 { margin: 0 0 0.5rem; color: var(--purple); font-size: 0.95rem; font-weight: normal; }
.card .chart-wrap { position: relative; height: 220px; }
.card.wide { grid-column: 1 / -1; }
.card.wide .chart-wrap { height: 260px; }
.empty-note { color: var(--muted); font-style: italic; }
</style>
</head>
<body>
<pre class="banner">░▒▓█▓▒░ … ░▒▓█▓▒░ hyperhive ag3nt · stats ░▒▓█▓▒░</pre>
<div class="stats-nav">
<a id="back-link" href="/">← live</a>
<a id="dashboard-link" href="#">dashboard</a>
<h2 id="title" style="margin: 0;">◆ … ◆</h2>
</div>
<div class="window-tabs" id="window-tabs">
<button data-w="24h" class="active">last 24h</button>
<button data-w="7d">last 7d</button>
<button data-w="30d">last 30d</button>
</div>
<div class="summary" id="summary"></div>
<div class="grid">
<div class="card wide"><h3>turns per bucket</h3><div class="chart-wrap"><canvas id="chart-turns"></canvas></div></div>
<div class="card wide"><h3>turn duration (ms) — p50 / p95 / avg</h3><div class="chart-wrap"><canvas id="chart-duration"></canvas></div></div>
<div class="card wide"><h3>context tokens (last inference per turn) — avg / max</h3><div class="chart-wrap"><canvas id="chart-ctx"></canvas></div></div>
<div class="card wide"><h3>token cost per bucket (sum across inferences)</h3><div class="chart-wrap"><canvas id="chart-cost"></canvas></div></div>
<div class="card"><h3>top tools</h3><div class="chart-wrap"><canvas id="chart-tools"></canvas></div></div>
<div class="card"><h3>wake source mix</h3><div class="chart-wrap"><canvas id="chart-wake"></canvas></div></div>
<div class="card"><h3>result mix</h3><div class="chart-wrap"><canvas id="chart-result"></canvas></div></div>
</div>
<!-- Chart.js pinned to a fixed version from jsDelivr. SRI hash is
not set yet — add an integrity="sha384-..." attribute when we
have a way to compute it deterministically in the build. -->
<script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.4/dist/chart.umd.min.js"
crossorigin="anonymous"></script>
<script src="/static/stats.js" defer></script>
</body>
</html>

308
hive-ag3nt/assets/stats.js Normal file
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@ -0,0 +1,308 @@
// Per-agent stats page. Fetches /api/state for the title + dashboard link
// once on load, then /api/stats?window=... for the chart data — re-fetches
// when the operator clicks a window tab.
(function () {
'use strict';
const cssVar = (name) => getComputedStyle(document.documentElement).getPropertyValue(name).trim();
const palette = {
bg: cssVar('--bg'),
bgElev: cssVar('--bg-elev'),
fg: cssVar('--fg'),
muted: cssVar('--muted'),
purple: cssVar('--purple'),
cyan: cssVar('--cyan'),
pink: cssVar('--pink'),
amber: cssVar('--amber'),
green: cssVar('--green'),
red: cssVar('--red'),
border: cssVar('--border'),
};
// Distinct hues for categorical charts (top tools / wake mix / result mix).
const wheel = [palette.purple, palette.cyan, palette.pink, palette.amber,
palette.green, palette.red, '#94e2d5', '#f9e2af',
'#74c7ec', '#b4befe'];
// Apply Catppuccin defaults globally so each Chart inherits without per-call
// overrides. Chart.js v4 reads these on chart construction.
Chart.defaults.color = palette.fg;
Chart.defaults.borderColor = palette.border;
Chart.defaults.font.family = '"JetBrains Mono", "Fira Code", monospace';
Chart.defaults.font.size = 11;
Chart.defaults.plugins.legend.labels.color = palette.fg;
const charts = {};
let currentWindow = '24h';
function fmtMs(ms) {
if (!Number.isFinite(ms) || ms <= 0) return '0';
if (ms < 1000) return ms.toFixed(0) + 'ms';
return (ms / 1000).toFixed(ms < 10000 ? 2 : 1) + 's';
}
function fmtInt(n) {
if (!Number.isFinite(n)) return '0';
return new Intl.NumberFormat().format(Math.round(n));
}
function bucketLabel(ts, bucketSecs) {
const d = new Date(ts * 1000);
if (bucketSecs >= 86400) {
return d.toISOString().slice(5, 10); // MM-DD
}
return d.toISOString().slice(11, 16); // HH:MM
}
function destroy(name) {
if (charts[name]) {
charts[name].destroy();
delete charts[name];
}
}
function paintEmpty(canvasId, msg) {
destroy(canvasId);
const cv = document.getElementById(canvasId);
if (!cv) return;
const ctx = cv.getContext('2d');
ctx.clearRect(0, 0, cv.width, cv.height);
ctx.fillStyle = palette.muted;
ctx.font = '12px monospace';
ctx.textAlign = 'center';
ctx.textBaseline = 'middle';
ctx.fillText(msg, cv.width / 2, cv.height / 2);
}
function renderSummary(s) {
const root = document.getElementById('summary');
root.replaceChildren();
const chips = [
['turns', fmtInt(s.turn_count)],
['avg duration', fmtMs(s.duration_summary.avg_ms)],
['p50 duration', fmtMs(s.duration_summary.p50_ms)],
['p95 duration', fmtMs(s.duration_summary.p95_ms)],
['window', s.window],
];
for (const [label, value] of chips) {
const chip = document.createElement('span');
chip.className = 'chip';
const l = document.createElement('span');
l.className = 'label';
l.textContent = label;
const v = document.createElement('span');
v.className = 'value';
v.textContent = value;
chip.append(l, v);
root.append(chip);
}
}
function renderTurnsChart(s) {
const id = 'chart-turns';
destroy(id);
const labels = s.buckets.map((b) => bucketLabel(b.ts, s.bucket_seconds));
const data = s.buckets.map((b) => b.turn_count);
charts[id] = new Chart(document.getElementById(id), {
type: 'bar',
data: {
labels,
datasets: [{
label: 'turns',
data,
backgroundColor: palette.purple,
borderColor: palette.purple,
borderWidth: 1,
}],
},
options: {
responsive: true, maintainAspectRatio: false,
plugins: { legend: { display: false } },
scales: {
x: { grid: { color: palette.border } },
y: { beginAtZero: true, grid: { color: palette.border }, ticks: { precision: 0 } },
},
},
});
}
function renderDurationChart(s) {
const id = 'chart-duration';
destroy(id);
const labels = s.buckets.map((b) => bucketLabel(b.ts, s.bucket_seconds));
const ds = (label, color, key) => ({
label, data: s.buckets.map((b) => b[key]),
borderColor: color, backgroundColor: color + '33',
tension: 0.25, pointRadius: 0, borderWidth: 2, spanGaps: true,
});
charts[id] = new Chart(document.getElementById(id), {
type: 'line',
data: {
labels,
datasets: [
ds('p50', palette.cyan, 'p50_duration_ms'),
ds('p95', palette.pink, 'p95_duration_ms'),
ds('avg', palette.amber, 'avg_duration_ms'),
],
},
options: {
responsive: true, maintainAspectRatio: false,
scales: {
x: { grid: { color: palette.border } },
y: {
beginAtZero: true,
grid: { color: palette.border },
ticks: { callback: (v) => fmtMs(v) },
},
},
},
});
}
function renderCtxChart(s) {
const id = 'chart-ctx';
destroy(id);
const labels = s.buckets.map((b) => bucketLabel(b.ts, s.bucket_seconds));
charts[id] = new Chart(document.getElementById(id), {
type: 'line',
data: {
labels,
datasets: [
{
label: 'avg ctx',
data: s.buckets.map((b) => b.avg_ctx_tokens),
borderColor: palette.cyan,
backgroundColor: palette.cyan + '33',
tension: 0.25, pointRadius: 0, borderWidth: 2, spanGaps: true,
},
{
label: 'max ctx',
data: s.buckets.map((b) => b.max_ctx_tokens),
borderColor: palette.amber,
backgroundColor: palette.amber + '33',
tension: 0.25, pointRadius: 0, borderWidth: 2, spanGaps: true,
},
],
},
options: {
responsive: true, maintainAspectRatio: false,
scales: {
x: { grid: { color: palette.border } },
y: { beginAtZero: true, grid: { color: palette.border }, ticks: { callback: (v) => fmtInt(v) } },
},
},
});
}
function renderCostChart(s) {
const id = 'chart-cost';
destroy(id);
const labels = s.buckets.map((b) => bucketLabel(b.ts, s.bucket_seconds));
// Stacked bars: cache_read (cheap) / cache_creation / input / output.
// Highlights "what's actually getting billed at full rate" vs cache hits.
charts[id] = new Chart(document.getElementById(id), {
type: 'bar',
data: {
labels,
datasets: [
{ label: 'cache_read', data: s.buckets.map((b) => b.cache_read_input_tokens),
backgroundColor: palette.muted },
{ label: 'cache_creation', data: s.buckets.map((b) => b.cache_creation_input_tokens),
backgroundColor: palette.cyan },
{ label: 'input', data: s.buckets.map((b) => b.input_tokens),
backgroundColor: palette.amber },
{ label: 'output', data: s.buckets.map((b) => b.output_tokens),
backgroundColor: palette.pink },
],
},
options: {
responsive: true, maintainAspectRatio: false,
scales: {
x: { stacked: true, grid: { color: palette.border } },
y: { stacked: true, beginAtZero: true,
grid: { color: palette.border }, ticks: { callback: (v) => fmtInt(v) } },
},
},
});
}
function renderKeyCount(canvasId, items, emptyMsg) {
destroy(canvasId);
if (!items || items.length === 0) {
paintEmpty(canvasId, emptyMsg);
return;
}
const labels = items.map((kc) => kc.key);
const data = items.map((kc) => kc.count);
const colors = items.map((_, i) => wheel[i % wheel.length]);
charts[canvasId] = new Chart(document.getElementById(canvasId), {
type: 'doughnut',
data: { labels, datasets: [{ data, backgroundColor: colors, borderColor: palette.bg, borderWidth: 2 }] },
options: {
responsive: true, maintainAspectRatio: false,
plugins: { legend: { position: 'right', labels: { boxWidth: 12 } } },
},
});
}
function render(s) {
renderSummary(s);
if (s.turn_count === 0) {
paintEmpty('chart-turns', 'no turns in window');
paintEmpty('chart-duration', 'no turns in window');
paintEmpty('chart-ctx', 'no turns in window');
paintEmpty('chart-cost', 'no turns in window');
paintEmpty('chart-tools', 'no tool calls');
paintEmpty('chart-wake', 'no wakes');
paintEmpty('chart-result', 'no results');
return;
}
renderTurnsChart(s);
renderDurationChart(s);
renderCtxChart(s);
renderCostChart(s);
renderKeyCount('chart-tools', s.tool_breakdown, 'no tool calls');
renderKeyCount('chart-wake', s.wake_mix, 'no wakes');
renderKeyCount('chart-result', s.result_mix, 'no results');
}
async function loadStats() {
try {
const resp = await fetch('/api/stats?window=' + encodeURIComponent(currentWindow));
if (!resp.ok) throw new Error('http ' + resp.status);
const snap = await resp.json();
render(snap);
} catch (e) {
document.getElementById('summary').textContent = 'stats fetch failed: ' + e;
}
}
async function loadIdentity() {
try {
const resp = await fetch('/api/state');
if (!resp.ok) return;
const s = await resp.json();
document.title = 'stats · ' + s.label;
document.getElementById('title').textContent = '◆ ' + s.label + ' ◆';
const dl = document.getElementById('dashboard-link');
dl.href = 'http://' + window.location.hostname + ':' + s.dashboard_port + '/';
} catch (_) { /* non-fatal */ }
}
function bindTabs() {
const tabs = document.getElementById('window-tabs');
tabs.addEventListener('click', (ev) => {
const btn = ev.target.closest('button[data-w]');
if (!btn) return;
currentWindow = btn.dataset.w;
for (const b of tabs.querySelectorAll('button')) b.classList.toggle('active', b === btn);
loadStats();
});
}
document.addEventListener('DOMContentLoaded', () => {
bindTabs();
loadIdentity();
loadStats();
});
})();

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@ -8,6 +8,7 @@ pub mod login_session;
pub mod mcp;
pub mod paths;
pub mod plugins;
pub mod stats;
pub mod turn;
pub mod turn_stats;
pub mod web_ui;

500
hive-ag3nt/src/stats.rs Normal file
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@ -0,0 +1,500 @@
//! Read-side aggregations over the per-agent `turn_stats.sqlite` for
//! the agent's `/stats` web page. Owned by the agent (same process
//! that writes the sink) so per-MCP extensions can register more
//! providers without the host needing to know their schemas.
//!
//! Best-effort: any sqlite error returns an empty snapshot rather than
//! propagating — the stats page is decorative, not authoritative, and
//! a missing db on a brand-new agent shouldn't 500 the route.
use std::collections::HashMap;
use std::path::{Path, PathBuf};
use anyhow::{Context, Result};
use rusqlite::{Connection, OpenFlags};
use serde::Serialize;
/// Window param accepted by `/api/stats?window=`. Each maps to a
/// total span + the bucket width used to roll up trend series.
#[derive(Debug, Clone, Copy)]
pub enum Window {
Day,
Week,
Month,
}
impl Window {
pub fn parse(s: &str) -> Self {
match s {
"7d" => Self::Week,
"30d" => Self::Month,
_ => Self::Day,
}
}
fn label(self) -> &'static str {
match self {
Self::Day => "24h",
Self::Week => "7d",
Self::Month => "30d",
}
}
fn span_secs(self) -> i64 {
match self {
Self::Day => 24 * 3600,
Self::Week => 7 * 24 * 3600,
Self::Month => 30 * 24 * 3600,
}
}
fn bucket_secs(self) -> i64 {
match self {
// hourly for the 24h view, daily for the longer ranges.
Self::Day => 3600,
Self::Week | Self::Month => 24 * 3600,
}
}
}
#[derive(Debug, Serialize)]
pub struct Snapshot {
pub window: &'static str,
pub bucket_seconds: i64,
pub now: i64,
pub from: i64,
/// Total turns in the window.
pub turn_count: u64,
/// Time-bucketed trend series, oldest first. Always covers the
/// full window even for empty buckets (so charts paint a stable
/// x-axis instead of skipping gaps).
pub buckets: Vec<Bucket>,
/// Top tools by call count across the window. Capped to 10.
pub tool_breakdown: Vec<KeyCount>,
pub wake_mix: Vec<KeyCount>,
pub result_mix: Vec<KeyCount>,
/// Across-window p50 / p95 / avg of `duration_ms`. Same numbers
/// as the per-bucket fields but aggregated over the whole window
/// for the headline summary chips.
pub duration_summary: DurationSummary,
}
#[derive(Debug, Serialize)]
pub struct Bucket {
/// Unix timestamp of the bucket start.
pub ts: i64,
pub turn_count: u64,
pub avg_duration_ms: f64,
pub p50_duration_ms: f64,
pub p95_duration_ms: f64,
/// Sums across the bucket. JS picks how to combine them
/// (input + output for cost, etc.) so we don't bake a policy in.
pub input_tokens: u64,
pub output_tokens: u64,
pub cache_read_input_tokens: u64,
pub cache_creation_input_tokens: u64,
/// Mean of `last_input_tokens` across the bucket (the context
/// size at turn-end — useful for spotting drift toward compaction).
pub avg_ctx_tokens: f64,
pub max_ctx_tokens: u64,
}
#[derive(Debug, Serialize)]
pub struct KeyCount {
pub key: String,
pub count: u64,
}
#[derive(Debug, Default, Serialize)]
pub struct DurationSummary {
pub avg_ms: f64,
pub p50_ms: f64,
pub p95_ms: f64,
}
#[must_use]
pub fn snapshot_default(window: Window) -> Snapshot {
let path = default_path();
match snapshot(&path, window) {
Ok(s) => s,
Err(e) => {
tracing::warn!(error = ?e, path = %path.display(), "stats: snapshot failed");
empty_snapshot(window)
}
}
}
fn default_path() -> PathBuf {
crate::paths::state_dir().join("hyperhive-turn-stats.sqlite")
}
fn empty_snapshot(window: Window) -> Snapshot {
let now = now_secs();
let from = now - window.span_secs();
let buckets = fill_buckets(from, now, window.bucket_secs(), &HashMap::new());
Snapshot {
window: window.label(),
bucket_seconds: window.bucket_secs(),
now,
from,
turn_count: 0,
buckets,
tool_breakdown: Vec::new(),
wake_mix: Vec::new(),
result_mix: Vec::new(),
duration_summary: DurationSummary::default(),
}
}
fn snapshot(path: &Path, window: Window) -> Result<Snapshot> {
// Read-only open so an in-flight writer (the harness's own
// turn_stats sink) never blocks us and we can't corrupt the db
// via a query bug.
let conn = Connection::open_with_flags(path, OpenFlags::SQLITE_OPEN_READ_ONLY)
.with_context(|| format!("open {} read-only", path.display()))?;
let now = now_secs();
let from = now - window.span_secs();
let bucket_secs = window.bucket_secs();
let mut stmt = conn.prepare(
"SELECT started_at, duration_ms,
input_tokens, output_tokens,
cache_read_input_tokens, cache_creation_input_tokens,
last_input_tokens,
tool_call_breakdown_json,
wake_from, result_kind
FROM turn_stats
WHERE started_at >= ?1
ORDER BY started_at ASC",
)?;
let rows = stmt.query_map([from], |row| {
Ok(Row {
started_at: row.get(0)?,
duration_ms: row.get::<_, i64>(1)?,
input_tokens: u64_from_i64(row.get::<_, i64>(2)?),
output_tokens: u64_from_i64(row.get::<_, i64>(3)?),
cache_read_input_tokens: u64_from_i64(row.get::<_, i64>(4)?),
cache_creation_input_tokens: u64_from_i64(row.get::<_, i64>(5)?),
last_input_tokens: u64_from_i64(row.get::<_, i64>(6)?),
tool_breakdown_json: row.get::<_, Option<String>>(7)?,
wake_from: row.get::<_, String>(8)?,
result_kind: row.get::<_, String>(9)?,
})
})?;
let mut by_bucket: HashMap<i64, BucketAcc> = HashMap::new();
let mut tool_totals: HashMap<String, u64> = HashMap::new();
let mut wake_totals: HashMap<String, u64> = HashMap::new();
let mut result_totals: HashMap<String, u64> = HashMap::new();
let mut all_durations: Vec<i64> = Vec::new();
let mut turn_count: u64 = 0;
for r in rows {
let r = r?;
turn_count += 1;
let bucket_ts = (r.started_at / bucket_secs) * bucket_secs;
let acc = by_bucket.entry(bucket_ts).or_default();
acc.turn_count += 1;
acc.durations.push(r.duration_ms.max(0));
acc.input_tokens = acc.input_tokens.saturating_add(r.input_tokens);
acc.output_tokens = acc.output_tokens.saturating_add(r.output_tokens);
acc.cache_read_input_tokens = acc
.cache_read_input_tokens
.saturating_add(r.cache_read_input_tokens);
acc.cache_creation_input_tokens = acc
.cache_creation_input_tokens
.saturating_add(r.cache_creation_input_tokens);
acc.ctx_sum = acc.ctx_sum.saturating_add(r.last_input_tokens);
acc.ctx_max = acc.ctx_max.max(r.last_input_tokens);
all_durations.push(r.duration_ms.max(0));
*wake_totals.entry(r.wake_from).or_insert(0) += 1;
*result_totals.entry(r.result_kind).or_insert(0) += 1;
if let Some(json) = r.tool_breakdown_json
&& let Ok(map) = serde_json::from_str::<HashMap<String, u64>>(&json)
{
for (k, v) in map {
*tool_totals.entry(k).or_insert(0) += v;
}
}
}
let buckets = fill_buckets(from, now, bucket_secs, &by_bucket);
let duration_summary = summarize_durations(&mut all_durations);
Ok(Snapshot {
window: window.label(),
bucket_seconds: bucket_secs,
now,
from,
turn_count,
buckets,
tool_breakdown: top_n(tool_totals, 10),
wake_mix: top_n(wake_totals, 20),
result_mix: top_n(result_totals, 20),
duration_summary,
})
}
struct Row {
started_at: i64,
duration_ms: i64,
input_tokens: u64,
output_tokens: u64,
cache_read_input_tokens: u64,
cache_creation_input_tokens: u64,
last_input_tokens: u64,
tool_breakdown_json: Option<String>,
wake_from: String,
result_kind: String,
}
#[derive(Default)]
struct BucketAcc {
turn_count: u64,
durations: Vec<i64>,
input_tokens: u64,
output_tokens: u64,
cache_read_input_tokens: u64,
cache_creation_input_tokens: u64,
ctx_sum: u64,
ctx_max: u64,
}
fn fill_buckets(
from: i64,
now: i64,
bucket_secs: i64,
by_bucket: &HashMap<i64, BucketAcc>,
) -> Vec<Bucket> {
let start = (from / bucket_secs) * bucket_secs;
let mut out = Vec::new();
let mut ts = start;
while ts <= now {
let bucket = if let Some(acc) = by_bucket.get(&ts) {
let mut sorted = acc.durations.clone();
sorted.sort_unstable();
let avg = if sorted.is_empty() {
0.0
} else {
#[allow(clippy::cast_precision_loss)]
let sum_f = sorted.iter().sum::<i64>() as f64;
#[allow(clippy::cast_precision_loss)]
let len_f = sorted.len() as f64;
sum_f / len_f
};
let p50 = percentile(&sorted, 50);
let p95 = percentile(&sorted, 95);
let avg_ctx = if acc.turn_count == 0 {
0.0
} else {
#[allow(clippy::cast_precision_loss)]
let sum_f = acc.ctx_sum as f64;
#[allow(clippy::cast_precision_loss)]
let cnt_f = acc.turn_count as f64;
sum_f / cnt_f
};
Bucket {
ts,
turn_count: acc.turn_count,
avg_duration_ms: avg,
p50_duration_ms: p50,
p95_duration_ms: p95,
input_tokens: acc.input_tokens,
output_tokens: acc.output_tokens,
cache_read_input_tokens: acc.cache_read_input_tokens,
cache_creation_input_tokens: acc.cache_creation_input_tokens,
avg_ctx_tokens: avg_ctx,
max_ctx_tokens: acc.ctx_max,
}
} else {
Bucket {
ts,
turn_count: 0,
avg_duration_ms: 0.0,
p50_duration_ms: 0.0,
p95_duration_ms: 0.0,
input_tokens: 0,
output_tokens: 0,
cache_read_input_tokens: 0,
cache_creation_input_tokens: 0,
avg_ctx_tokens: 0.0,
max_ctx_tokens: 0,
}
};
out.push(bucket);
ts += bucket_secs;
}
out
}
fn summarize_durations(all: &mut [i64]) -> DurationSummary {
if all.is_empty() {
return DurationSummary::default();
}
all.sort_unstable();
#[allow(clippy::cast_precision_loss)]
let sum_f = all.iter().sum::<i64>() as f64;
#[allow(clippy::cast_precision_loss)]
let len_f = all.len() as f64;
DurationSummary {
avg_ms: sum_f / len_f,
p50_ms: percentile(all, 50),
p95_ms: percentile(all, 95),
}
}
#[allow(clippy::cast_precision_loss, clippy::cast_possible_truncation, clippy::cast_sign_loss)]
fn percentile(sorted: &[i64], pct: u8) -> f64 {
if sorted.is_empty() {
return 0.0;
}
if sorted.len() == 1 {
return sorted[0] as f64;
}
// Nearest-rank, clamped.
let rank = ((f64::from(pct) / 100.0) * (sorted.len() as f64 - 1.0)).round() as usize;
sorted[rank.min(sorted.len() - 1)] as f64
}
fn top_n(map: HashMap<String, u64>, n: usize) -> Vec<KeyCount> {
let mut v: Vec<KeyCount> = map
.into_iter()
.map(|(key, count)| KeyCount { key, count })
.collect();
v.sort_unstable_by(|a, b| b.count.cmp(&a.count).then_with(|| a.key.cmp(&b.key)));
v.truncate(n);
v
}
fn u64_from_i64(v: i64) -> u64 {
u64::try_from(v).unwrap_or(0)
}
fn now_secs() -> i64 {
std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.map_or(0, |d| i64::try_from(d.as_secs()).unwrap_or(i64::MAX))
}
#[cfg(test)]
mod tests {
use super::*;
use rusqlite::params;
use std::sync::atomic::{AtomicU32, Ordering};
static SEQ: AtomicU32 = AtomicU32::new(0);
fn tmp_db() -> PathBuf {
let n = SEQ.fetch_add(1, Ordering::SeqCst);
let pid = std::process::id();
std::env::temp_dir().join(format!("hyperhive-stats-test-{pid}-{n}.sqlite"))
}
fn seed_db(path: &Path, rows: &[(i64, i64, &str, &str, &str)]) {
let conn = Connection::open(path).unwrap();
conn.execute_batch(
"CREATE TABLE turn_stats (
id INTEGER PRIMARY KEY,
started_at INTEGER NOT NULL,
ended_at INTEGER NOT NULL,
duration_ms INTEGER NOT NULL,
model TEXT NOT NULL,
wake_from TEXT NOT NULL,
input_tokens INTEGER NOT NULL DEFAULT 0,
output_tokens INTEGER NOT NULL DEFAULT 0,
cache_read_input_tokens INTEGER NOT NULL DEFAULT 0,
cache_creation_input_tokens INTEGER NOT NULL DEFAULT 0,
last_input_tokens INTEGER NOT NULL DEFAULT 0,
last_output_tokens INTEGER NOT NULL DEFAULT 0,
last_cache_read_input_tokens INTEGER NOT NULL DEFAULT 0,
last_cache_creation_input_tokens INTEGER NOT NULL DEFAULT 0,
tool_call_count INTEGER NOT NULL DEFAULT 0,
tool_call_breakdown_json TEXT,
open_threads_count INTEGER,
open_reminders_count INTEGER,
result_kind TEXT NOT NULL,
note TEXT
);",
)
.unwrap();
for (started, dur, wake, result, tools_json) in rows {
conn.execute(
"INSERT INTO turn_stats
(started_at, ended_at, duration_ms, model, wake_from,
last_input_tokens, tool_call_breakdown_json, result_kind)
VALUES (?1, ?2, ?3, 'm', ?4, 1000, ?5, ?6)",
params![started, started + dur / 1000, dur, wake, tools_json, result],
)
.unwrap();
}
}
#[test]
fn snapshot_aggregates_rows() {
let db = tmp_db();
let _ = std::fs::remove_file(&db);
let now = now_secs();
seed_db(
&db,
&[
(now - 600, 5_000, "recv", "ok", r#"{"Read":2,"Bash":1}"#),
(now - 300, 10_000, "recv", "ok", r#"{"Read":3}"#),
(now - 100, 20_000, "operator", "failed", "{}"),
],
);
let s = snapshot(&db, Window::Day).unwrap();
assert_eq!(s.turn_count, 3);
assert_eq!(s.window, "24h");
assert_eq!(s.bucket_seconds, 3600);
let tool_map: HashMap<_, _> = s
.tool_breakdown
.iter()
.map(|kc| (kc.key.clone(), kc.count))
.collect();
assert_eq!(tool_map.get("Read").copied(), Some(5));
assert_eq!(tool_map.get("Bash").copied(), Some(1));
let wake_map: HashMap<_, _> = s
.wake_mix
.iter()
.map(|kc| (kc.key.clone(), kc.count))
.collect();
assert_eq!(wake_map.get("recv").copied(), Some(2));
assert_eq!(wake_map.get("operator").copied(), Some(1));
let result_map: HashMap<_, _> = s
.result_mix
.iter()
.map(|kc| (kc.key.clone(), kc.count))
.collect();
assert_eq!(result_map.get("ok").copied(), Some(2));
assert_eq!(result_map.get("failed").copied(), Some(1));
// Durations: [5000, 10000, 20000] → avg ≈ 11666.67, p50 = 10000, p95 ~ 20000
assert!((s.duration_summary.avg_ms - 11_666.666_666_666_666).abs() < 1.0);
assert!((s.duration_summary.p50_ms - 10_000.0).abs() < 1.0);
assert!((s.duration_summary.p95_ms - 20_000.0).abs() < 1.0);
}
#[test]
fn empty_window_still_paints_buckets() {
let db = tmp_db();
let _ = std::fs::remove_file(&db);
seed_db(&db, &[]);
let s = snapshot(&db, Window::Day).unwrap();
assert_eq!(s.turn_count, 0);
// 24h / 1h buckets = ~24-25 buckets covering the window.
assert!(s.buckets.len() >= 24);
assert!(s.buckets.iter().all(|b| b.turn_count == 0));
}
#[test]
fn week_uses_daily_buckets() {
let db = tmp_db();
let _ = std::fs::remove_file(&db);
seed_db(&db, &[]);
let s = snapshot(&db, Window::Week).unwrap();
assert_eq!(s.window, "7d");
assert_eq!(s.bucket_seconds, 86_400);
assert!(s.buckets.len() >= 7);
}
}

View file

@ -107,6 +107,9 @@ pub async fn serve(
.route("/api/model", post(post_set_model))
.route("/api/new-session", post(post_new_session))
.route("/api/loose-ends", get(api_loose_ends))
.route("/stats", get(serve_stats))
.route("/static/stats.js", get(serve_stats_js))
.route("/api/stats", get(api_stats))
.with_state(state);
let addr = SocketAddr::from(([0, 0, 0, 0], port));
let listener = bind_with_retry(addr, "web UI").await?;
@ -198,6 +201,33 @@ async fn serve_marked_js() -> impl IntoResponse {
)
}
async fn serve_stats() -> impl IntoResponse {
(
[("content-type", "text/html; charset=utf-8")],
include_str!("../assets/stats.html"),
)
}
async fn serve_stats_js() -> impl IntoResponse {
(
[("content-type", "application/javascript")],
include_str!("../assets/stats.js"),
)
}
#[derive(Deserialize)]
struct StatsQuery {
window: Option<String>,
}
async fn api_stats(
State(_state): State<AppState>,
axum::extract::Query(q): axum::extract::Query<StatsQuery>,
) -> axum::Json<crate::stats::Snapshot> {
let window = crate::stats::Window::parse(q.window.as_deref().unwrap_or("24h"));
axum::Json(crate::stats::snapshot_default(window))
}
#[derive(Serialize)]
struct StateSnapshot {
/// Bus seq at the moment this snapshot was assembled. Clients dedupe