fix(ai,agent,coding-agent): share UUIDv7 and use for Codex (#6834)

packages/agent/src/harness/session/jsonl-storage.ts

@@ -1,7 +1,7 @@
+import { uuidv7 } from "@earendil-works/pi-ai";
 import type { FileSystem, JsonlSessionMetadata, LeafEntry, SessionStorage, SessionTreeEntry } from "../types.ts";
 import { SessionError, toError } from "../types.ts";
 import { getFileSystemResultOrThrow } from "./repo-utils.ts";
-import { uuidv7 } from "./uuid.ts";
 
 type JsonlSessionStorageFileSystem = Pick<FileSystem, "readTextFile" | "readTextLines" | "writeFile" | "appendFile">;
 

packages/agent/src/harness/session/memory-storage.ts

@@ -1,3 +1,4 @@
+import { uuidv7 } from "@earendil-works/pi-ai";
 import {
 	type LeafEntry,
 	SessionError,
@@ -5,7 +6,6 @@ import {
 	type SessionStorage,
 	type SessionTreeEntry,
 } from "../types.ts";
-import { uuidv7 } from "./uuid.ts";
 
 function updateLabelCache(labelsById: Map<string, string>, entry: SessionTreeEntry): void {
 	if (entry.type !== "label") return;

packages/agent/src/harness/session/repo-utils.ts

@@ -1,3 +1,4 @@
+import { uuidv7 } from "@earendil-works/pi-ai";
 import {
 	type FileError,
 	type Result,
@@ -7,7 +8,6 @@ import {
 	type SessionTreeEntry,
 } from "../types.ts";
 import { Session } from "./session.ts";
-import { uuidv7 } from "./uuid.ts";
 
 export function createSessionId(): string {
 	return uuidv7();

packages/agent/src/harness/session/uuid.ts

@@ -1,54 +0,0 @@
-let lastTimestamp = -Infinity;
-let sequence = 0;
-
-function fillRandomBytes(bytes: Uint8Array): void {
-	const crypto = globalThis.crypto;
-	if (crypto?.getRandomValues) {
-		crypto.getRandomValues(bytes);
-		return;
-	}
-	for (let i = 0; i < bytes.length; i++) {
-		bytes[i] = Math.floor(Math.random() * 256);
-	}
-}
-
-export function uuidv7(): string {
-	const random = new Uint8Array(16);
-	fillRandomBytes(random);
-	const timestamp = Date.now();
-
-	if (timestamp > lastTimestamp) {
-		sequence = random[6] * 0x1000000 + random[7] * 0x10000 + random[8] * 0x100 + random[9];
-		lastTimestamp = timestamp;
-	} else {
-		sequence = (sequence + 1) >>> 0;
-		if (sequence === 0) {
-			lastTimestamp++;
-		}
-	}
-
-	const bytes = new Uint8Array(16);
-	bytes[0] = (lastTimestamp / 0x10000000000) & 0xff;
-	bytes[1] = (lastTimestamp / 0x100000000) & 0xff;
-	bytes[2] = (lastTimestamp / 0x1000000) & 0xff;
-	bytes[3] = (lastTimestamp / 0x10000) & 0xff;
-	bytes[4] = (lastTimestamp / 0x100) & 0xff;
-	bytes[5] = lastTimestamp & 0xff;
-	bytes[6] = 0x70 | ((sequence >>> 28) & 0x0f);
-	bytes[7] = (sequence >>> 20) & 0xff;
-	bytes[8] = 0x80 | ((sequence >>> 14) & 0x3f);
-	bytes[9] = (sequence >>> 6) & 0xff;
-	bytes[10] = ((sequence & 0x3f) << 2) | (random[10] & 0x03);
-	bytes[11] = random[11];
-	bytes[12] = random[12];
-	bytes[13] = random[13];
-	bytes[14] = random[14];
-	bytes[15] = random[15];
-
-	return formatUuid(bytes);
-}
-
-function formatUuid(bytes: Uint8Array): string {
-	const hex = Array.from(bytes, (byte) => byte.toString(16).padStart(2, "0"));
-	return `${hex.slice(0, 4).join("")}-${hex.slice(4, 6).join("")}-${hex.slice(6, 8).join("")}-${hex.slice(8, 10).join("")}-${hex.slice(10, 16).join("")}`;
-}

packages/agent/src/index.ts

@@ -33,7 +33,6 @@ export * from "./harness/session/memory-repo.ts";
 export * from "./harness/session/memory-storage.ts";
 export * from "./harness/session/repo-utils.ts";
 export * from "./harness/session/session.ts";
-export { uuidv7 } from "./harness/session/uuid.ts";
 export * from "./harness/skills.ts";
 export * from "./harness/system-prompt.ts";
 // Harness