sessions: thread captured titles onto SessionSummary and the report

src/parser.ts

@@ -2047,6 +2047,7 @@ async function scanProjectDirs(
     const session = buildSessionSummary(sessionId, projectName, classifiedTurns, mcpInv, source)
     session.agentType = cachedFile.agentType
     if (cachedFile.prLinks?.length) session.prLinks = [...new Set(cachedFile.prLinks)].sort()
+    if (cachedFile.title) session.title = cachedFile.title
 
     if (session.apiCalls > 0) {
       const projectKey = cachedFile.canonicalCwd
@@ -2744,7 +2745,7 @@ async function parseProviderSources(
 
   // Query-time: derive SessionSummary from all cached turns.
   // Uses seenKeys (shared across providers) for cross-provider dedup.
-  const sessionMap = new Map<string, { project: string; projectPath?: string; turns: ClassifiedTurn[]; prLinks?: Set<string> }>()
+  const sessionMap = new Map<string, { project: string; projectPath?: string; turns: ClassifiedTurn[]; prLinks?: Set<string>; title?: string }>()
 
   for (const source of servedSources) {
     const cachedFile = section.files[source.path]
@@ -2777,12 +2778,14 @@ async function parseProviderSources(
           const links = (existing.prLinks ??= new Set())
           for (const link of cachedFile.prLinks) links.add(link)
         }
+        if (!existing.title && cachedFile.title) existing.title = cachedFile.title
       } else {
         sessionMap.set(key, {
           project,
           projectPath: turn.calls[0]?.projectPath,
           turns: [classified],
           ...(cachedFile.prLinks?.length ? { prLinks: new Set(cachedFile.prLinks) } : {}),
+          ...(cachedFile.title ? { title: cachedFile.title } : {}),
         })
       }
     }
@@ -2826,10 +2829,11 @@ async function parseProviderSources(
   }
 
   const projectMap = new Map<string, { projectPath?: string; sessions: SessionSummary[] }>()
-  for (const [key, { project, projectPath, turns, prLinks }] of sessionMap) {
+  for (const [key, { project, projectPath, turns, prLinks, title }] of sessionMap) {
     const sessionId = key.split(':')[1] ?? key
     const session = buildSessionSummary(sessionId, project, turns)
     if (prLinks?.size) session.prLinks = [...prLinks].sort()
+    if (title) session.title = title
     if (session.apiCalls > 0) {
       const existing = projectMap.get(project)
       if (existing) {

src/sessions-report.ts

@@ -2,6 +2,8 @@ import type { ProjectSummary, SessionSummary } from './types.js'
 
 export type SessionRow = {
   sessionId: string
+  /// Captured human title, empty when the transcript never produced one.
+  title: string
   project: string
   provider: string
   models: string[]
@@ -41,6 +43,7 @@ function durationMs(startedAt: string, endedAt: string): number {
 export function aggregateSessions(projects: ProjectSummary[]): SessionRow[] {
   return projects.flatMap(project => project.sessions.map(session => ({
     sessionId: session.sessionId,
+    title: session.title ?? '',
     project: session.project || project.project,
     provider: inferProvider(session),
     models: Object.keys(session.modelBreakdown),
@@ -63,9 +66,10 @@ export function renderJson(rows: SessionRow[]): string {
 }
 
 export function renderTable(rows: SessionRow[]): string {
-  const headers = ['SESSION', 'PROJECT', 'PROVIDER', 'MODELS', 'COST', 'SAVED', 'CALLS', 'TURNS', 'STARTED']
+  const headers = ['SESSION', 'TITLE', 'PROJECT', 'PROVIDER', 'MODELS', 'COST', 'SAVED', 'CALLS', 'TURNS', 'STARTED']
   const values = rows.map(row => [
     row.sessionId,
+    row.title.length > 38 ? row.title.slice(0, 37) + '\u2026' : row.title,
     row.project,
     row.provider,
     row.models.join(', '),

src/types.ts

@@ -202,6 +202,9 @@ export type SessionSummary = {
   /// GitHub PR URLs captured from the session transcript (session-level,
   /// deduplicated). Absent when none were observed.
   prLinks?: string[]
+  /// Human session title captured from the transcript (last ai-title entry).
+  /// Absent when the transcript never produced one.
+  title?: string
   modelBreakdown: Record<string, { calls: number; costUSD: number; tokens: TokenUsage; savingsUSD: number; estimatedCostUSD?: number }>
   toolBreakdown: Record<string, { calls: number }>
   mcpBreakdown: Record<string, { calls: number }>

tests/sessions-report.test.ts

@@ -78,6 +78,7 @@ describe('sessions JSON emitter', () => {
 
     expect(parsed).toEqual([{
       sessionId: 'session-1',
+      title: '',
       project: 'codeburn',
       provider: 'claude',
       models: ['claude-sonnet-4-5'],