feat(session-title): integrate queries ACP and TUI

packages/support/acp-snapshot/src/index.ts

@@ -41,6 +41,8 @@ export {
 } from './normalize.ts'
 export {
   defineAcpSnapshotSuite,
+  refreshFixtureReplacements,
+  stabilizeRefreshLog,
   type Scenario,
   type SnapshotSuiteOptions,
 } from './suite.ts'

packages/support/acp-snapshot/src/normalize.ts

@@ -11,6 +11,7 @@ const CWD = '{{cwd}}'
 const SYSTEM = '{{system}}'
 const TOOLS = '{{tools}}'
 const MESSAGE_PREFIX = '{{messagePrefix}}'
+const UPDATED_AT = '{{updatedAt}}'
 
 /** A UUID v4 string, the shape `randomUUID()` produces for session ids. */
 const UUID_RE = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/gi
@@ -85,6 +86,8 @@ export function normalizeStdout(rawStdout: string, ctx: NormalizeContext): strin
     if ('id' in frame && frame.id !== undefined && frame.id !== null) {
       frame.id = stableId(frame.id)
     }
+    const update = (frame.params as { update?: Record<string, unknown> } | undefined)?.update
+    if (update?.sessionUpdate === 'session_info_update') update.updatedAt = UPDATED_AT
     return scrubValue(frame, ctx) as Record<string, unknown>
   })
   return frames.map(f => JSON.stringify(f)).join('\n') + '\n'

packages/support/acp-snapshot/src/suite.ts

@@ -420,8 +420,21 @@ export function stabilizeRefreshLog(fresh: string, existing: string, replacement
   for (const { from, to } of replacements) stable = stable.split(from).join(to)
   const existingRecords = parseJsonlRecords(existing)
   const records = parseJsonlRecords(stable)
+  let existingIndex = 0
+  let previousEventTime: unknown
   for (let i = 0; i < records.length; i++) {
-    preserveFixtureVolatiles(records[i] as Record<string, unknown>, existingRecords[i])
+    const record = records[i] as Record<string, unknown>
+    const existingRecord = existingRecords[existingIndex]
+    const insertedTitle = record.type === 'session/title' && existingRecord?.type !== 'session/title'
+    if (insertedTitle) {
+      /* v8 ignore next -- a title is turn-enclosed, so a preceding event time exists in every valid fixture. */
+      if (typeof previousEventTime !== 'number') throw new Error('acp-snapshot: inserted title has no preceding event time')
+      record.time = previousEventTime
+    } else {
+      preserveFixtureVolatiles(record, existingRecord)
+      existingIndex += 1
+    }
+    if (typeof record.time === 'number') previousEventTime = record.time
   }
   return records.map(record => JSON.stringify(record)).join('\n') + '\n'
 }