@@ -30,6 +30,7 @@ const keys = new Set([
 
 export function isV1(input: unknown) {
   if (typeof input !== "object" || input === null || Array.isArray(input)) return false
+  // altimate_change start — detect renamed nested V1 compaction keys
   if (Object.keys(input).some((key) => keys.has(key))) return true
   const compaction = (input as Record<string, unknown>).compaction
   if (typeof compaction !== "object" || compaction === null || Array.isArray(compaction)) return false
@@ -39,6 +40,7 @@ export function isV1(input: unknown) {
   return ["tail_turns", "preserve_recent_tokens", "reserved"].some((key) =>
     Object.prototype.hasOwnProperty.call(compaction, key),
   )
+  // altimate_change end
 }
 
 export function migrate(info: typeof ConfigV1.Info.Type) {
 
@@ -769,7 +769,9 @@ export namespace SessionProcessor {
                           start: match.state.time.start,
                           end: Date.now(),
                         },
+                        // altimate_change start — persist only dispatch-capped attachments
                         attachments: toolResultAttachments,
+                        // altimate_change end
                       },
                     })
 
 
@@ -1953,6 +1953,7 @@ export namespace SessionPrompt {
     }
     await Telemetry.shutdown()
     // altimate_change end
+    // altimate_change start — resolve callbacks from this prompt generation only
     for await (const item of MessageV2.stream(sessionID)) {
       if (item.info.role === "user") continue
       // Resolve only callers queued on THIS loop generation. A cancelled loop
@@ -1965,6 +1966,7 @@ export namespace SessionPrompt {
       }
       return item
     }
+    // altimate_change end
     throw new Error("Impossible")
   })
Original file line number	Diff line number	Diff line change
`@@ -30,6 +30,7 @@ const keys = new Set([`
`30`	`30`
`31`	`31`	`export function isV1(input: unknown) {`
`32`	`32`	`if (typeof input !== "object" \|\| input === null \|\| Array.isArray(input)) return false`
	`33`	`+ // altimate_change start — detect renamed nested V1 compaction keys`
`33`	`34`	`if (Object.keys(input).some((key) => keys.has(key))) return true`
`34`	`35`	`const compaction = (input as Record<string, unknown>).compaction`
`35`	`36`	`if (typeof compaction !== "object" \|\| compaction === null \|\| Array.isArray(compaction)) return false`
`@@ -39,6 +40,7 @@ export function isV1(input: unknown) {`
`39`	`40`	`return ["tail_turns", "preserve_recent_tokens", "reserved"].some((key) =>`
`40`	`41`	`Object.prototype.hasOwnProperty.call(compaction, key),`
`41`	`42`	`)`
	`43`	`+ // altimate_change end`
`42`	`44`	`}`
`43`	`45`
`44`	`46`	`export function migrate(info: typeof ConfigV1.Info.Type) {`
Original file line number	Diff line number	Diff line change
`@@ -1953,6 +1953,7 @@ export namespace SessionPrompt {`
`1953`	`1953`	`}`
`1954`	`1954`	`await Telemetry.shutdown()`
`1955`	`1955`	`// altimate_change end`
	`1956`	`+ // altimate_change start — resolve callbacks from this prompt generation only`
`1956`	`1957`	`for await (const item of MessageV2.stream(sessionID)) {`
`1957`	`1958`	`if (item.info.role === "user") continue`
`1958`	`1959`	`// Resolve only callers queued on THIS loop generation. A cancelled loop`
`@@ -1965,6 +1966,7 @@ export namespace SessionPrompt {`
`1965`	`1966`	`}`
`1966`	`1967`	`return item`
`1967`	`1968`	`}`
	`1969`	`+ // altimate_change end`
`1968`	`1970`	`throw new Error("Impossible")`
`1969`	`1971`	`})`
`1970`	`1972`