feat(chord): Chord v2 is the package's root

src/next is src (the main export), src/next-node is src/node with short subpaths (/http, /workers, /plugins,
/plugins/runtime, /app, /surfaces, /web, /react, /tui, /tui/launcher); the foundations get /json and /watch;
Chord v1 moves to src/old (/old, /old/node) until p2 runs on v2; tests and docs move likewise (test/, docs/,
test/old, docs/old). Durable and env import the foundations from their subpaths.

packages/durable/test/chat-support.ts

@@ -1,4 +1,4 @@
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import {
 	createModels,
 	type FauxProviderHandle,

packages/durable/test/codemode-models.test.ts

@@ -1,7 +1,7 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import {
 	type AssistantImages,
 	type ClassifierResult,

packages/durable/test/codemode.test.ts

@@ -1,7 +1,7 @@
 import { mkdtemp, readdir, readFile, rm, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { dirname, join } from "node:path";
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { type AssistantMessage, fauxAssistantMessage, fauxText, fauxToolCall } from "@earendil-works/pi-ai";
 import { type CodemodeRun, CodemodeSandbox } from "@earendil-works/pi-codemode";
 import {

packages/durable/test/conversation-view-bench.ts

@@ -18,7 +18,7 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { fileURLToPath } from "node:url";
 import { promisify } from "node:util";
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { BACKGROUND_CONTEXT as context } from "@earendil-works/chord/context";
 import { createModels } from "@earendil-works/pi-ai/models";
 import { type Conversation, createRegistry, type EntryId, Harness, LiveDoc, type Storage } from "../src/index.ts";

packages/durable/test/examples/21-subagent-foreground.ts

@@ -5,7 +5,7 @@
 // Run from packages/durable:
 //   node --conditions=source --experimental-strip-types test/examples/21-subagent-foreground.ts
 
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import type { AssistantMessage, FauxResponseStep } from "@earendil-works/pi-ai";
 import { createModels } from "@earendil-works/pi-ai/models";

packages/durable/test/examples/35-durable-on-the-store.ts

@@ -7,7 +7,6 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import {
 	createHost,
 	defineFacet,
@@ -17,7 +16,8 @@ import {
 	openStore,
 	sqliteBackend,
 	str,
-} from "@earendil-works/chord/next";
+} from "@earendil-works/chord";
+import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import { openNodeSqliteDatabase } from "@earendil-works/chord/sqlite/node";
 import { createModels } from "@earendil-works/pi-ai";
 import { createRegistry, Harness, ROOT_CONVERSATION_ID } from "../../src/index.ts";

packages/durable/test/examples/36-durable-views.ts

@@ -5,7 +5,6 @@
 // Run from packages/durable:
 //   node --conditions=source --experimental-strip-types test/examples/36-durable-views.ts
 
-import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import {
 	arr,
 	createHost,
@@ -17,7 +16,8 @@ import {
 	openStore,
 	sqliteBackend,
 	str,
-} from "@earendil-works/chord/next";
+} from "@earendil-works/chord";
+import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import { openNodeSqliteDatabase } from "@earendil-works/chord/sqlite/node";
 import { createModels } from "@earendil-works/pi-ai";
 import { createRegistry, Harness, ROOT_CONVERSATION_ID } from "../../src/index.ts";

packages/durable/test/examples/37-harness-registry.ts

@@ -6,7 +6,6 @@
 // Run from packages/durable:
 //   node --conditions=source --experimental-strip-types test/examples/37-harness-registry.ts
 
-import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import {
 	arr,
 	createHost,
@@ -19,7 +18,8 @@ import {
 	type RegistryTable,
 	sqliteBackend,
 	str,
-} from "@earendil-works/chord/next";
+} from "@earendil-works/chord";
+import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import { openNodeSqliteDatabase } from "@earendil-works/chord/sqlite/node";
 import { createModels } from "@earendil-works/pi-ai";
 import {

packages/durable/test/harness-after-run.test.ts

@@ -1,7 +1,8 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { Draft, JsonValue } from "@earendil-works/chord";
+import type { Draft } from "@earendil-works/chord/delta";
+import type { JsonValue } from "@earendil-works/chord/json";
 import { fauxAssistantMessage, fauxToolCall } from "@earendil-works/pi-ai";
 import {
 	CompactionTask,

packages/durable/test/harness-cancellation-barrier.test.ts

@@ -1,4 +1,4 @@
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import {
 	type CommitResult,
 	createSession,

packages/durable/test/harness-context.test.ts

@@ -1,4 +1,4 @@
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { createModels, type Message } from "@earendil-works/pi-ai";
 import {
 	type ContextView,

packages/durable/test/harness-group-commit.test.ts

@@ -1,6 +1,6 @@
 // Group commit and the scheduler (docs/group-commit.md §6): decisions read the scheduler's memory in regions that
 // wait for the unpublished commits whose keys they read, memberships written at admission, outcomes, and close.
-import type { JsonValue } from "@earendil-works/chord";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type ConversationId,
 	createRegistry,

packages/durable/test/harness-lifecycle.test.ts

@@ -1,8 +1,9 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { Context, JsonValue } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { withAbortSignal } from "@earendil-works/chord/context";
+import type { JsonValue } from "@earendil-works/chord/json";
 import { createModels, fauxAssistantMessage, fauxText, fauxToolCall } from "@earendil-works/pi-ai";
 import {
 	type Conversation,

packages/durable/test/harness-nested-tools-restart.test.ts

@@ -1,7 +1,7 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import {
 	type AssistantMessage,
 	fauxAssistantMessage,

packages/durable/test/harness-nested-tools.test.ts

@@ -1,9 +1,9 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { JsonValue } from "@earendil-works/chord";
 import { withAbortSignal } from "@earendil-works/chord/context";
 import { applyImmutable } from "@earendil-works/chord/delta";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type AssistantMessage,
 	fauxAssistantMessage,

packages/durable/test/harness-observers.test.ts

@@ -2,8 +2,8 @@
 // document) and for task document watches, which end with their task.
 import { setFlagsFromString } from "node:v8";
 import { runInNewContext } from "node:vm";
-import type { WatchCall } from "@earendil-works/chord";
 import { withAbortSignal } from "@earendil-works/chord/context";
+import type { WatchCall } from "@earendil-works/chord/watch";
 import {
 	type ConversationView,
 	defineDoc,

packages/durable/test/harness-partial-changes.test.ts

@@ -1,5 +1,5 @@
-import { copyJson } from "@earendil-works/chord";
 import { type Op, track } from "@earendil-works/chord/delta";
+import { copyJson } from "@earendil-works/chord/json";
 import {
 	type AssistantMessage,
 	type AssistantMessageEvent,

packages/durable/test/harness-registry-reader.test.ts

@@ -1,4 +1,3 @@
-import { BACKGROUND_CONTEXT as context } from "@earendil-works/chord/context";
 import {
 	arr,
 	createHost,
@@ -10,7 +9,8 @@ import {
 	type Native,
 	type RegistryTable,
 	str,
-} from "@earendil-works/chord/next";
+} from "@earendil-works/chord";
+import { BACKGROUND_CONTEXT as context } from "@earendil-works/chord/context";
 import { createModels } from "@earendil-works/pi-ai/models";
 import { describe, expect, it } from "vitest";
 import {

packages/durable/test/harness-storage-failure.test.ts

@@ -1,5 +1,5 @@
 import { runInNewContext } from "node:vm";
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { createModels } from "@earendil-works/pi-ai";
 import {
 	createRegistry,

packages/durable/test/harness-structured-output.test.ts

@@ -1,7 +1,7 @@
 import { mkdtempSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { JsonValue } from "@earendil-works/chord";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type AssistantMessage,
 	fauxAssistantMessage,

packages/durable/test/harness-structured.test.ts

@@ -1,7 +1,8 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { Context, JsonValue } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	fauxAssistantMessage,
 	fauxText,

packages/durable/test/harness-task-graph.test.ts

@@ -1,8 +1,8 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { JsonValue } from "@earendil-works/chord";
 import { applyImmutable, type Op } from "@earendil-works/chord/delta";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type ConversationId,
 	type ConversationView,

packages/durable/test/harness-tasks-recovery.test.ts

@@ -1,7 +1,8 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { Context, JsonValue } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
+import type { JsonValue } from "@earendil-works/chord/json";
 import { createModels } from "@earendil-works/pi-ai";
 import {
 	createRegistry,

packages/durable/test/harness-tasks.test.ts

@@ -1,4 +1,4 @@
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { withAbortSignal, withCancel } from "@earendil-works/chord/context";
 import { createModels } from "@earendil-works/pi-ai";
 import {

packages/durable/test/harness-tool-hooks.test.ts

@@ -4,7 +4,7 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { JsonValue } from "@earendil-works/chord";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type AssistantMessage,
 	fauxAssistantMessage,

packages/durable/test/harness-tools-recovery.test.ts

@@ -1,7 +1,7 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { dirname, join } from "node:path";
-import type { JsonValue } from "@earendil-works/chord";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type AssistantMessage,
 	fauxAssistantMessage,

packages/durable/test/harness-tools.test.ts

@@ -1,7 +1,7 @@
 import { mkdtempSync, readFileSync, rmSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { JsonValue } from "@earendil-works/chord";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type AssistantMessage,
 	type FauxResponseStep,

packages/durable/test/harness-view-run.test.ts

@@ -3,7 +3,7 @@
 
 import { GCProfiler, getHeapStatistics, setFlagsFromString } from "node:v8";
 import { runInNewContext } from "node:vm";
-import type { Draft } from "@earendil-works/chord";
+import type { Draft } from "@earendil-works/chord/delta";
 import { applyImmutable, type Op } from "@earendil-works/chord/delta";
 import {
 	type AssistantMessage,

packages/durable/test/indexeddb-storage.test.ts

@@ -1,7 +1,8 @@
 /// <reference lib="dom" />
 
-import type { Context, JsonValue } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
+import type { JsonValue } from "@earendil-works/chord/json";
 import { registerStorageConformance } from "@earendil-works/pi-durable/testing";
 import { IDBKeyRange as FakeIDBKeyRange, IDBObjectStore as FakeIDBObjectStore, IDBFactory } from "fake-indexeddb";
 import { describe, expect, it, vi } from "vitest";

packages/durable/test/jsonl-storage.test.ts

@@ -1,8 +1,9 @@
 import { mkdtemp, readdir, readFile, rm, stat, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { basename, join } from "node:path";
-import type { Context, JsonValue } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
+import type { JsonValue } from "@earendil-works/chord/json";
 import { registerStorageConformance } from "@earendil-works/pi-durable/testing";
 import { afterEach, describe, expect, it } from "vitest";
 import { err, FileError, type FileSystem, type Result } from "../src/env/index.ts";

packages/durable/test/session-adoption.test.ts

@@ -1,7 +1,7 @@
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { basename, join } from "node:path";
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import {
 	type CommitPublication,
 	type CommitResult,

packages/durable/test/session-cached-storage.test.ts

@@ -1,4 +1,4 @@
-import type { JsonValue } from "@earendil-works/chord";
+import type { JsonValue } from "@earendil-works/chord/json";
 import { describe, expect, it } from "vitest";
 import { idFromNumber } from "../src/ids.ts";
 import { CachedStorage } from "../src/session/cached-storage.ts";

packages/durable/test/session-deferred-commits.test.ts

@@ -2,8 +2,8 @@
 // each kind of listener then sees.
 import { setFlagsFromString } from "node:v8";
 import { runInNewContext } from "node:vm";
-import type { JsonValue } from "@earendil-works/chord";
 import { applyImmutable } from "@earendil-works/chord/delta";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type CommitChange,
 	type CommitOptions,

packages/durable/test/session-definitions.test.ts

@@ -1,4 +1,4 @@
-import type { Draft } from "@earendil-works/chord";
+import type { Draft } from "@earendil-works/chord/delta";
 import {
 	type ConversationId,
 	createSession,

packages/durable/test/session-documents.test.ts

@@ -1,4 +1,5 @@
-import type { Draft, JsonValue } from "@earendil-works/chord";
+import type { Draft } from "@earendil-works/chord/delta";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type ConversationId,
 	defineDoc,

packages/durable/test/session-group-commit.test.ts

@@ -1,6 +1,6 @@
 // Group commit on the Session line (docs/group-commit.md): batching, gates, outcome fences, publication, failures per
 // part, upkeep through the writer, backpressure, bounds, and a randomized interleaving against an oracle.
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import {
 	type CommitOptions,
 	type CommitResult,

packages/durable/test/session-observers.test.ts

@@ -1,8 +1,8 @@
 // Tests for `Session.observeDoc()`, the synchronous observer of one document address that watches are built on.
 import { setFlagsFromString } from "node:v8";
 import { runInNewContext } from "node:vm";
-import type { WatchCall, WatchEnd } from "@earendil-works/chord";
 import { withAbortSignal } from "@earendil-works/chord/context";
+import type { WatchCall, WatchEnd } from "@earendil-works/chord/watch";
 import {
 	type CommitObserver,
 	type ConversationId,

packages/durable/test/session-support.ts

@@ -1,4 +1,4 @@
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
 import {
 	type CommitChange,

packages/durable/test/session-tables.test.ts

@@ -1,4 +1,4 @@
-import type { JsonValue } from "@earendil-works/chord";
+import type { JsonValue } from "@earendil-works/chord/json";
 import {
 	type ConversationId,
 	defineDoc,

packages/durable/test/session-watches.test.ts

@@ -1,6 +1,6 @@
 import { setFlagsFromString } from "node:v8";
 import { runInNewContext } from "node:vm";
-import type { Context, WatchCall, WatchEnd } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import {
 	BACKGROUND_CONTEXT,
 	createContextKey,
@@ -9,6 +9,7 @@ import {
 	withContextValue,
 } from "@earendil-works/chord/context";
 import { applyImmutable } from "@earendil-works/chord/delta";
+import type { WatchCall, WatchEnd } from "@earendil-works/chord/watch";
 import { type DocumentWatch, defineDoc, defineDocFamily, MemoryStorage } from "@earendil-works/pi-durable";
 import { describe, expect, it } from "vitest";
 import { SessionImpl } from "../src/session/session.ts";

packages/durable/test/spec-usage.test.ts

@@ -4,7 +4,8 @@
  * patterns end to end.
  */
 
-import type { Context, Draft } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
+import type { Draft } from "@earendil-works/chord/delta";
 import type { AssistantMessage, Models, ToolCall } from "@earendil-works/pi-ai";
 import {
 	type Conversation,

packages/durable/test/sqlite-storage.test.ts

@@ -2,8 +2,9 @@ import { mkdtemp, rm, stat } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { DatabaseSync } from "node:sqlite";
-import type { Context, JsonValue } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
+import type { JsonValue } from "@earendil-works/chord/json";
 import type { SqliteDatabase } from "@earendil-works/chord/sqlite";
 import { registerStorageConformance } from "@earendil-works/pi-durable/testing";
 import { afterEach, describe, expect, it } from "vitest";

packages/durable/test/store-storage-commit.test.ts

@@ -8,8 +8,8 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { setFlagsFromString } from "node:v8";
 import { runInNewContext } from "node:vm";
+import { type ChordStore, createHost, openStore, sqliteBackend } from "@earendil-works/chord";
 import { BACKGROUND_CONTEXT, withTelemetry } from "@earendil-works/chord/context";
-import { type ChordStore, createHost, openStore, sqliteBackend } from "@earendil-works/chord/next";
 import type { SqliteDatabase, SqliteExecutor } from "@earendil-works/chord/sqlite";
 import { openNodeSqliteDatabase } from "@earendil-works/chord/sqlite/node";
 import { InMemoryTelemetryContext } from "@earendil-works/pi-telemetry";

packages/durable/test/store-storage-support.ts

@@ -1,8 +1,8 @@
 // StoreStorage over a SQLite file for tests: a store opened on the file, Durable's storage in it under a test owner
 // name, and a close that closes the store too (the app's part: in tests the storage is the store's only owner).
 
+import { openStore, sqliteBackend } from "@earendil-works/chord";
 import { BACKGROUND_CONTEXT } from "@earendil-works/chord/context";
-import { openStore, sqliteBackend } from "@earendil-works/chord/next";
 import { type NodeSqliteDatabaseOptions, openNodeSqliteDatabase } from "@earendil-works/chord/sqlite/node";
 import { StoreStorage } from "../src/storage/store/index.ts";
 import type { Storage } from "../src/types.ts";

packages/durable/test/store-storage.test.ts

@@ -6,8 +6,6 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { setFlagsFromString } from "node:v8";
 import { runInNewContext } from "node:vm";
-import type { Context } from "@earendil-works/chord";
-import { BACKGROUND_CONTEXT, withTelemetry } from "@earendil-works/chord/context";
 import {
 	applyBatch,
 	type ChordStore,
@@ -23,7 +21,9 @@ import {
 	type Store,
 	sqliteBackend,
 	str,
-} from "@earendil-works/chord/next";
+} from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
+import { BACKGROUND_CONTEXT, withTelemetry } from "@earendil-works/chord/context";
 import { openNodeSqliteDatabase } from "@earendil-works/chord/sqlite/node";
 import { createModels } from "@earendil-works/pi-ai";
 import { registerStorageConformance } from "@earendil-works/pi-durable/testing";

packages/durable/test/tools.test.ts

@@ -4,8 +4,9 @@ import { appendFileSync, mkdirSync, rmSync } from "node:fs";
 import { symlink } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import type { Context, JsonValue } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { BACKGROUND_CONTEXT, withAbortSignal } from "@earendil-works/chord/context";
+import type { JsonValue } from "@earendil-works/chord/json";
 import type {
 	ToolDiagnostic,
 	ToolExecutionApi,

packages/durable/test/types.test.ts

@@ -1,4 +1,4 @@
-import type { Context } from "@earendil-works/chord";
+import type { Context } from "@earendil-works/chord/context";
 import { expect, expectTypeOf, it } from "vitest";
 import { idFromNumber, seqFromNumber } from "../src/ids.ts";
 import type {