Thariq Shihipar 147ddf8ee3
Add session-report plugin
Generates an explorable HTML report of Claude Code session usage from
local ~/.claude/projects transcripts: total tokens, cache efficiency,
per-project/subagent/skill breakdowns, most expensive prompts with
transcript context, and cache breaks. Terminal-styled, single-file
output with sortable tables and expandable drill-downs.
2026-04-07 17:40:13 -07:00

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#!/usr/bin/env node
/* eslint-disable */
/**
* analyze-sessions.js
*
* Scans ~/.claude/projects/**.jsonl transcript files and reports token usage,
* message counts, runtime, cache breaks, subagent and skill activity.
*
* Output is human-readable text by default; pass --json for machine-readable.
*
* Usage:
* node scripts/analyze-sessions.js [--dir <projects-dir>] [--json] [--since <ISO|7d|24h>] [--top N]
*
* Notes on JSONL structure (discovered empirically):
* - One API response is split into MULTIPLE `type:"assistant"` entries (one per
* content block). They share the same `requestId` / `message.id`, and only the
* LAST one carries the final `output_tokens`. We dedupe by requestId and keep
* the max output_tokens to avoid 3-10x overcounting.
* - `type:"user"` entries include tool_result messages, interrupt markers,
* compact summaries and meta-injected text. A "human" message is one where
* isSidechain/isMeta/isCompactSummary are falsy and the content is a plain
* string (or text block) that isn't a tool_result or interrupt marker.
* - Subagent transcripts live in <project>/<sessionId>/subagents/*.jsonl with a
* sibling *.meta.json containing {agentType}. When meta is absent we fall back
* to the filename label (`agent-a<label>-<hash>.jsonl` → label) or "fork".
* - Resumed sessions can re-serialize prior entries into a new file; we dedupe
* globally by entry `uuid` so replayed history isn't double-counted.
*/
import fs from 'fs'
import os from 'os'
import path from 'path'
import readline from 'readline'
// ---------------------------------------------------------------------------
// CLI args
// ---------------------------------------------------------------------------
const argv = process.argv.slice(2)
function flag(name, dflt) {
const i = argv.indexOf(name)
if (i === -1) return dflt
const v = argv[i + 1]
return v === undefined || v.startsWith('--') ? true : v
}
const ROOT = flag('--dir', path.join(os.homedir(), '.claude', 'projects'))
const AS_JSON = argv.includes('--json')
const TOP_N = parseInt(flag('--top', '15'), 10)
const SINCE = parseSince(flag('--since', null))
const CACHE_BREAK_THRESHOLD = parseInt(flag('--cache-break', '100000'), 10)
const IDLE_GAP_MS = 5 * 60 * 1000 // gaps >5min don't count toward "active" time
function parseSince(s) {
if (!s) return null
const m = /^(\d+)([dh])$/.exec(s)
if (m) {
const ms = m[2] === 'd' ? 86400000 : 3600000
return new Date(Date.now() - parseInt(m[1], 10) * ms)
}
const d = new Date(s)
return isNaN(d) ? null : d
}
// ---------------------------------------------------------------------------
// Stats container
// ---------------------------------------------------------------------------
function newStats() {
return {
sessions: new Set(),
apiCalls: 0,
inputUncached: 0, // usage.input_tokens
inputCacheCreate: 0, // usage.cache_creation_input_tokens
inputCacheRead: 0, // usage.cache_read_input_tokens
outputTokens: 0,
humanMessages: 0,
wallClockMs: 0,
activeMs: 0,
cacheBreaks: [], // [{ts, session, project, uncached, total}]
subagentCalls: 0,
subagentTokens: 0, // total (in+out) inside subagent transcripts
skillInvocations: {}, // name -> count
firstTs: null,
lastTs: null,
}
}
function addUsage(s, u) {
s.apiCalls++
s.inputUncached += u.input_tokens || 0
s.inputCacheCreate += u.cache_creation_input_tokens || 0
s.inputCacheRead += u.cache_read_input_tokens || 0
s.outputTokens += u.output_tokens || 0
}
// ---------------------------------------------------------------------------
// File discovery
// ---------------------------------------------------------------------------
function* walk(dir) {
let ents
try {
ents = fs.readdirSync(dir, { withFileTypes: true })
} catch {
return
}
for (const e of ents) {
const p = path.join(dir, e.name)
if (e.isDirectory()) yield* walk(p)
else if (e.isFile() && e.name.endsWith('.jsonl')) yield p
}
}
function classifyFile(p) {
// returns { project, sessionId, kind, agentId?, agentTypeHint? }
// agentTypeHint is from meta.json or filename label; final type is resolved
// in main() after the parent-transcript map is built.
const rel = path.relative(ROOT, p)
const parts = rel.split(path.sep)
const project = parts[0]
const subIdx = parts.indexOf('subagents')
if (subIdx !== -1) {
const sessionId = parts[subIdx - 1]
const base = path.basename(p, '.jsonl')
const agentId = base.replace(/^agent-/, '')
return {
project,
sessionId,
kind: 'subagent',
agentId,
agentTypeHint:
inferAgentTypeFromMeta(p) || inferAgentTypeFromFilename(base),
}
}
if (parts.includes('workflows')) {
const sessionId = parts[1]
return { project, sessionId, kind: 'subagent', agentTypeHint: 'workflow' }
}
const sessionId = path.basename(p, '.jsonl')
return { project, sessionId, kind: 'main' }
}
function inferAgentTypeFromMeta(jsonlPath) {
const metaPath = jsonlPath.replace(/\.jsonl$/, '.meta.json')
try {
const m = JSON.parse(fs.readFileSync(metaPath, 'utf8'))
if (m && typeof m.agentType === 'string') return m.agentType
} catch {
/* no meta */
}
return null
}
function inferAgentTypeFromFilename(base) {
// agentId = 'a' + hex16 OR 'a' + label + '-' + hex16 (src/utils/uuid.ts)
const m = /^agent-a([a-zA-Z_][\w-]*?)-[0-9a-f]{6,}$/.exec(base)
if (m) return m[1] // internal background fork label
return null // unlabeled — resolve via agentIdToType map or default to 'fork'
}
// ---------------------------------------------------------------------------
// Per-file streaming parse
// ---------------------------------------------------------------------------
const seenUuids = new Set() // global dedupe across resumed sessions
const seenRequestIds = new Set() // global dedupe for usage accounting
const toolUseIdToType = new Map() // tool_use id -> subagent_type (from Agent/Task tool_use)
const agentIdToType = new Map() // agentId -> subagent_type (linked via tool_result)
const toolUseIdToPrompt = new Map() // tool_use id -> promptKey (Agent spawned during this prompt)
const agentIdToPrompt = new Map() // agentId -> promptKey
const prompts = new Map() // promptKey -> { text, ts, project, sessionId, ...usage }
const sessionTurns = new Map() // sessionId -> [promptKey, ...] in transcript order
function promptRecord(key, init) {
let r = prompts.get(key)
if (!r) {
r = {
text: init.text,
ts: init.ts,
project: init.project,
sessionId: init.sessionId,
apiCalls: 0,
subagentCalls: 0,
inputUncached: 0,
inputCacheCreate: 0,
inputCacheRead: 0,
outputTokens: 0,
}
prompts.set(key, r)
}
return r
}
async function processFile(p, info, buckets) {
const rl = readline.createInterface({
input: fs.createReadStream(p, { encoding: 'utf8' }),
crlfDelay: Infinity,
})
// Per-file: dedupe API calls by requestId, keep the one with max output_tokens.
// We collect first, then commit, because earlier blocks have stale output counts.
const fileApiCalls = new Map() // key -> {usage, ts}
let firstTs = null
let lastTs = null
let prevTs = null
let activeMs = 0
let currentSkill = null // skill attribution for this turn
// Prompt attribution: in main files this is set on each human message; in
// subagent files it's inherited from the spawning prompt (via agentIdToPrompt).
let currentPrompt =
info.kind === 'subagent' && info.agentId
? agentIdToPrompt.get(info.agentId) || null
: null
const project = buckets.project
const overall = buckets.overall
const subagent = buckets.subagent // may be null
const skillStats = buckets.skillStats // map name -> stats
for await (const line of rl) {
if (!line) continue
let e
try {
e = JSON.parse(line)
} catch {
continue
}
// global uuid dedupe (resumed sessions replay history)
if (e.uuid) {
if (seenUuids.has(e.uuid)) continue
seenUuids.add(e.uuid)
}
// timestamp tracking
if (e.timestamp) {
const ts = Date.parse(e.timestamp)
if (!isNaN(ts)) {
if (SINCE && ts < SINCE.getTime()) continue
if (firstTs === null) firstTs = ts
if (prevTs !== null) {
const gap = ts - prevTs
if (gap > 0 && gap < IDLE_GAP_MS) activeMs += gap
}
prevTs = ts
lastTs = ts
}
}
if (e.type === 'user') {
// Link Agent tool_result -> agentId for type + prompt attribution.
const tur = e.toolUseResult
if (tur && tur.agentId) {
const c0 = Array.isArray(e.message?.content)
? e.message.content[0]
: null
const tuid = c0 && c0.tool_use_id
if (tuid) {
const st = toolUseIdToType.get(tuid)
if (st) agentIdToType.set(tur.agentId, st)
const pk = toolUseIdToPrompt.get(tuid)
if (pk) {
agentIdToPrompt.set(tur.agentId, pk)
const r = prompts.get(pk)
if (r) r.subagentCalls++
}
}
}
handleUser(
e,
info,
{ project, overall, subagent },
v => {
currentSkill = v
},
pk => {
currentPrompt = pk
},
)
continue
}
if (e.type === 'assistant') {
const msg = e.message || {}
const usage = msg.usage
// detect Skill / Agent tool calls in content
if (Array.isArray(msg.content)) {
for (const c of msg.content) {
if (c && c.type === 'tool_use') {
if (c.name === 'Skill' && c.input && c.input.skill) {
const sk = String(c.input.skill)
bumpSkill(overall, sk)
bumpSkill(project, sk)
if (subagent) bumpSkill(subagent, sk)
currentSkill = sk
}
if (c.name === 'Agent' || c.name === 'Task') {
if (c.input && c.input.subagent_type) {
toolUseIdToType.set(c.id, String(c.input.subagent_type))
}
if (currentPrompt) toolUseIdToPrompt.set(c.id, currentPrompt)
}
}
}
}
if (!usage) continue
const key =
e.requestId ||
(msg.id && msg.id.startsWith('msg_0') && msg.id.length > 10
? msg.id
: null) ||
`${p}:${e.uuid || ''}`
const prev = fileApiCalls.get(key)
if (
!prev ||
(usage.output_tokens || 0) >= (prev.usage.output_tokens || 0)
) {
fileApiCalls.set(key, {
usage,
ts: e.timestamp,
skill: currentSkill,
prompt: currentPrompt,
})
}
continue
}
}
// commit timestamps
if (firstTs !== null && lastTs !== null) {
const wall = lastTs - firstTs
for (const s of [overall, project, subagent].filter(Boolean)) {
s.wallClockMs += wall
s.activeMs += activeMs
if (!s.firstTs || firstTs < s.firstTs) s.firstTs = firstTs
if (!s.lastTs || lastTs > s.lastTs) s.lastTs = lastTs
}
}
// commit API calls
for (const [key, { usage, ts, skill, prompt }] of fileApiCalls) {
if (key && seenRequestIds.has(key)) continue
seenRequestIds.add(key)
const targets = [overall, project]
if (subagent) targets.push(subagent)
if (skill && skillStats) {
if (!skillStats.has(skill)) skillStats.set(skill, newStats())
targets.push(skillStats.get(skill))
}
for (const s of targets) addUsage(s, usage)
if (prompt) {
const r = prompts.get(prompt)
if (r) {
r.apiCalls++
r.inputUncached += usage.input_tokens || 0
r.inputCacheCreate += usage.cache_creation_input_tokens || 0
r.inputCacheRead += usage.cache_read_input_tokens || 0
r.outputTokens += usage.output_tokens || 0
}
}
// subagent token accounting on parent buckets
if (info.kind === 'subagent') {
const tot =
(usage.input_tokens || 0) +
(usage.cache_creation_input_tokens || 0) +
(usage.cache_read_input_tokens || 0) +
(usage.output_tokens || 0)
overall.subagentTokens += tot
project.subagentTokens += tot
if (subagent) subagent.subagentTokens += tot
}
// cache break detection
const uncached =
(usage.input_tokens || 0) + (usage.cache_creation_input_tokens || 0)
if (uncached > CACHE_BREAK_THRESHOLD) {
const total = uncached + (usage.cache_read_input_tokens || 0)
const cb = {
ts,
session: info.sessionId,
project: info.project,
uncached,
total,
kind: info.kind,
agentType: info.agentType,
prompt,
}
overall.cacheBreaks.push(cb)
project.cacheBreaks.push(cb)
if (subagent) subagent.cacheBreaks.push(cb)
}
}
// only count this file toward session/subagent tallies if it had in-range entries
if (firstTs !== null || fileApiCalls.size > 0) {
for (const s of [overall, project, subagent].filter(Boolean)) {
s.sessions.add(info.sessionId)
}
if (info.kind === 'subagent') {
overall.subagentCalls++
project.subagentCalls++
if (subagent) subagent.subagentCalls++
}
}
}
function handleUser(
e,
info,
{ project, overall, subagent },
setSkill,
setPrompt,
) {
if (e.isMeta || e.isCompactSummary) return
const content = e.message && e.message.content
let isToolResult = false
let text = null
if (typeof content === 'string') {
text = content
} else if (Array.isArray(content)) {
const first = content[0]
if (first && first.type === 'tool_result') isToolResult = true
else if (first && first.type === 'text') text = first.text || ''
}
if (isToolResult) return
let slashCmd = null
if (text) {
// Auto-continuations (task notifications, scheduled wakeups) are not new
// human prompts; keep attributing to the previously active prompt.
if (
text.startsWith('<task-notification') ||
text.startsWith('<scheduled-wakeup') ||
text.startsWith('<background-task')
) {
return
}
const m = /<command-(?:name|message)>\/?([^<]+)<\/command-/.exec(text)
if (m) {
slashCmd = m[1].trim()
bumpSkill(overall, slashCmd)
bumpSkill(project, slashCmd)
if (subagent) bumpSkill(subagent, slashCmd)
setSkill(slashCmd)
} else {
setSkill(null) // plain human message resets skill attribution
}
if (text.startsWith('[Request interrupted')) return
}
// Only count as human message / start a prompt in main (non-sidechain) transcripts
if (info.kind === 'main' && !e.isSidechain) {
overall.humanMessages++
project.humanMessages++
const pk = e.uuid || `${info.sessionId}:${e.timestamp}`
promptRecord(pk, {
text: promptPreview(text, slashCmd),
ts: e.timestamp,
project: info.project,
sessionId: info.sessionId,
})
setPrompt(pk)
let turns = sessionTurns.get(info.sessionId)
if (!turns) sessionTurns.set(info.sessionId, (turns = []))
turns.push(pk)
}
}
function promptPreview(text, slashCmd) {
if (slashCmd) return `/${slashCmd}`
if (!text) return '(non-text)'
const t = text
.replace(/<[^>]+>/g, ' ')
.replace(/\s+/g, ' ')
.trim()
return t.length > 240 ? t.slice(0, 237) + '…' : t
}
// ±2 user messages around a given prompt, with the api-call count that
// followed each one. Used for drill-down in the HTML report.
function buildContext(pk) {
const r = prompts.get(pk)
if (!r) return null
const turns = sessionTurns.get(r.sessionId)
if (!turns) return null
const i = turns.indexOf(pk)
if (i === -1) return null
const lo = Math.max(0, i - 2)
const hi = Math.min(turns.length, i + 3)
return turns.slice(lo, hi).map((k, j) => {
const t = prompts.get(k) || {}
return {
text: t.text || '',
ts: t.ts || null,
calls: t.apiCalls || 0,
here: lo + j === i,
}
})
}
function bumpSkill(s, name) {
s.skillInvocations[name] = (s.skillInvocations[name] || 0) + 1
}
const _btCache = new Map()
function birthtime(p) {
let t = _btCache.get(p)
if (t === undefined) {
try {
t = fs.statSync(p).birthtimeMs
} catch {
t = 0
}
_btCache.set(p, t)
}
return t
}
// ---------------------------------------------------------------------------
// Main
// ---------------------------------------------------------------------------
async function main() {
const overall = newStats()
const perProject = new Map() // project -> stats
const perSubagent = new Map() // agentType -> stats
const perSkill = new Map() // skill -> stats (token-attributed)
// Classify, then sort main files before subagent files. Fork-style subagents
// replay parent entries with identical uuids; processing parents first ensures
// the global uuid-dedupe attributes those entries to the parent, not the fork.
// Among subagents, sort by birthtime so a parent subagent is processed before
// any nested children it spawned (needed for prompt-attribution propagation).
const files = [...walk(ROOT)]
.map(p => ({ p, info: classifyFile(p) }))
.sort((a, b) => {
const ka = a.info.kind === 'main' ? 0 : 1
const kb = b.info.kind === 'main' ? 0 : 1
if (ka !== kb) return ka - kb
if (ka === 1) return birthtime(a.p) - birthtime(b.p)
return 0
})
let n = 0
for (const { p, info } of files) {
if (!perProject.has(info.project)) perProject.set(info.project, newStats())
const project = perProject.get(info.project)
let subagent = null
if (info.kind === 'subagent') {
// Resolve agent type: meta.json/filename hint > parent-transcript map > 'fork'
const at =
info.agentTypeHint ||
(info.agentId && agentIdToType.get(info.agentId)) ||
'fork'
info.agentType = at
if (!perSubagent.has(at)) perSubagent.set(at, newStats())
subagent = perSubagent.get(at)
}
await processFile(p, info, {
overall,
project,
subagent,
skillStats: perSkill,
})
n++
if (!AS_JSON && n % 200 === 0) {
process.stderr.write(`\r scanned ${n}/${files.length} files…`)
}
}
if (!AS_JSON)
process.stderr.write(`\r scanned ${n}/${files.length} files.\n`)
// Drop empty buckets (created for files that had no in-range entries under --since)
for (const m of [perProject, perSubagent, perSkill]) {
for (const [k, v] of m) {
if (v.apiCalls === 0 && v.sessions.size === 0) m.delete(k)
}
}
if (AS_JSON) {
printJson({ overall, perProject, perSubagent, perSkill })
} else {
printText({ overall, perProject, perSubagent, perSkill })
}
}
// ---------------------------------------------------------------------------
// Output
// ---------------------------------------------------------------------------
function fmt(n) {
if (n >= 1e9) return (n / 1e9).toFixed(2) + 'B'
if (n >= 1e6) return (n / 1e6).toFixed(2) + 'M'
if (n >= 1e3) return (n / 1e3).toFixed(1) + 'k'
return String(n)
}
function pct(a, b) {
return b > 0 ? ((100 * a) / b).toFixed(1) + '%' : '—'
}
function hrs(ms) {
return (ms / 3600000).toFixed(1)
}
function summarize(s) {
const inTotal = s.inputUncached + s.inputCacheCreate + s.inputCacheRead
return {
sessions: s.sessions.size,
api_calls: s.apiCalls,
input_tokens: {
uncached: s.inputUncached,
cache_create: s.inputCacheCreate,
cache_read: s.inputCacheRead,
total: inTotal,
pct_cached:
inTotal > 0 ? +((100 * s.inputCacheRead) / inTotal).toFixed(1) : 0,
},
output_tokens: s.outputTokens,
human_messages: s.humanMessages,
hours: { wall_clock: +hrs(s.wallClockMs), active: +hrs(s.activeMs) },
cache_breaks_over_100k: s.cacheBreaks.length,
subagent: {
calls: s.subagentCalls,
total_tokens: s.subagentTokens,
avg_tokens_per_call:
s.subagentCalls > 0
? Math.round(s.subagentTokens / s.subagentCalls)
: 0,
},
skill_invocations: s.skillInvocations,
span: s.firstTs
? {
from: new Date(s.firstTs).toISOString(),
to: new Date(s.lastTs).toISOString(),
}
: null,
}
}
function printJson({ overall, perProject, perSubagent, perSkill }) {
const out = {
root: ROOT,
generated_at: new Date().toISOString(),
overall: summarize(overall),
cache_breaks: overall.cacheBreaks
.sort((a, b) => b.uncached - a.uncached)
.slice(0, 100)
.map(({ prompt, ...b }) => ({
...b,
context: prompt ? buildContext(prompt) : null,
})),
by_project: Object.fromEntries(
[...perProject].map(([k, v]) => [k, summarize(v)]),
),
by_subagent_type: Object.fromEntries(
[...perSubagent].map(([k, v]) => [k, summarize(v)]),
),
by_skill: Object.fromEntries(
[...perSkill].map(([k, v]) => [k, summarize(v)]),
),
top_prompts: topPrompts(100),
}
process.stdout.write(JSON.stringify(out, null, 2) + '\n')
}
function promptTotal(r) {
return (
r.inputUncached + r.inputCacheCreate + r.inputCacheRead + r.outputTokens
)
}
function topPrompts(n) {
return [...prompts.entries()]
.filter(([, r]) => r.apiCalls > 0)
.sort((a, b) => promptTotal(b[1]) - promptTotal(a[1]))
.slice(0, n)
.map(([pk, r]) => ({
ts: r.ts,
project: r.project,
session: r.sessionId,
text: r.text,
api_calls: r.apiCalls,
subagent_calls: r.subagentCalls,
total_tokens: promptTotal(r),
input: {
uncached: r.inputUncached,
cache_create: r.inputCacheCreate,
cache_read: r.inputCacheRead,
},
output: r.outputTokens,
context: buildContext(pk),
}))
}
function printText({ overall, perProject, perSubagent, perSkill }) {
const line = (...a) => console.log(...a)
const hr = () => line('─'.repeat(78))
line()
line(`Claude Code session analysis — ${ROOT}`)
if (SINCE) line(`(since ${SINCE.toISOString()})`)
hr()
printBlock('OVERALL', overall)
hr()
line(
`CACHE BREAKS (>${fmt(CACHE_BREAK_THRESHOLD)} uncached input on a single call)`,
)
const breaks = overall.cacheBreaks
.sort((a, b) => b.uncached - a.uncached)
.slice(0, TOP_N)
if (breaks.length === 0) line(' none')
for (const b of breaks) {
line(
` ${fmt(b.uncached).padStart(8)} uncached / ${fmt(b.total).padStart(8)} total ` +
`${(b.ts || '').slice(0, 19)} ${b.project}` +
(b.kind === 'subagent' ? ` [${b.agentType}]` : ''),
)
}
if (overall.cacheBreaks.length > TOP_N)
line(`${overall.cacheBreaks.length - TOP_N} more`)
hr()
line(
'MOST EXPENSIVE PROMPTS (total tokens incl. subagents spawned during the turn)',
)
const top = topPrompts(TOP_N)
if (top.length === 0) line(' none')
for (const r of top) {
const inTot = r.input.uncached + r.input.cache_create + r.input.cache_read
line(
` ${fmt(r.total_tokens).padStart(8)} ` +
`(in ${fmt(inTot)} ${pct(r.input.cache_read, inTot)} cached, out ${fmt(r.output)}) ` +
`${r.api_calls} calls` +
(r.subagent_calls ? `, ${r.subagent_calls} subagents` : '') +
` ${(r.ts || '').slice(0, 16)} ${r.project}`,
)
line(` "${r.text}"`)
}
line(
' (note: internal background forks like task_summary/compact are not attributed to a prompt)',
)
hr()
line('BY PROJECT (top by total input tokens)')
const projects = [...perProject.entries()].sort(
(a, b) => totalIn(b[1]) - totalIn(a[1]),
)
for (const [name, s] of projects.slice(0, TOP_N)) {
printBlock(name, s, ' ')
line()
}
if (projects.length > TOP_N)
line(`${projects.length - TOP_N} more projects`)
hr()
line('BY SUBAGENT TYPE')
const agents = [...perSubagent.entries()].sort(
(a, b) => totalIn(b[1]) - totalIn(a[1]),
)
for (const [name, s] of agents) {
printBlock(name, s, ' ')
line()
}
hr()
line(
'BY SKILL / SLASH COMMAND (tokens attributed = from invocation until next human msg)',
)
const skills = [...perSkill.entries()].sort(
(a, b) => totalIn(b[1]) - totalIn(a[1]),
)
for (const [name, s] of skills.slice(0, TOP_N)) {
printBlock(name, s, ' ')
line()
}
if (skills.length > TOP_N) line(`${skills.length - TOP_N} more`)
line()
}
function totalIn(s) {
return s.inputUncached + s.inputCacheCreate + s.inputCacheRead
}
function printBlock(title, s, indent = '') {
const inTotal = totalIn(s)
console.log(`${indent}${title}`)
console.log(
`${indent} sessions: ${s.sessions.size} api calls: ${s.apiCalls} human msgs: ${s.humanMessages}`,
)
console.log(
`${indent} input: ${fmt(inTotal)} total ` +
`(uncached ${fmt(s.inputUncached)}, cache-create ${fmt(s.inputCacheCreate)}, cache-read ${fmt(s.inputCacheRead)} = ${pct(s.inputCacheRead, inTotal)} cached)`,
)
console.log(`${indent} output: ${fmt(s.outputTokens)}`)
console.log(
`${indent} hours: ${hrs(s.wallClockMs)} wall-clock, ${hrs(s.activeMs)} active (gaps >5m excluded)`,
)
console.log(
`${indent} cache breaks >${fmt(CACHE_BREAK_THRESHOLD)}: ${s.cacheBreaks.length}`,
)
console.log(
`${indent} subagents: ${s.subagentCalls} calls, ${fmt(s.subagentTokens)} tokens, avg ${fmt(
s.subagentCalls ? Math.round(s.subagentTokens / s.subagentCalls) : 0,
)}/call`,
)
const topSkills = Object.entries(s.skillInvocations)
.sort((a, b) => b[1] - a[1])
.slice(0, 5)
if (topSkills.length)
console.log(
`${indent} skills: ${topSkills.map(([k, v]) => `${k}×${v}`).join(', ')}`,
)
}
main().catch(e => {
console.error(e)
process.exit(1)
})