[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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sameerr03 wants to merge 2 commits into from
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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints #7

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0bbbf93
feat(server): fork Codex threads at checkpoints
sameerr03 Aug 20, 2026
38fd5b0
fix(server): clean up partial fork worktrees
sameerr03 Aug 20, 2026
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1 change: 1 addition & 0 deletions apps/server/src/auth/RpcAuthorization.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
[ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
[ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
[ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
[ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
[ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
[ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
[ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down
5 changes: 5 additions & 0 deletions apps/server/src/checkpointing/CheckpointDiffQuery.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
getThreadCheckpointContextCalls += 1;
return Option.none();
}),
getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
getFullThreadDiffContext: () =>
Effect.sync(() => {
getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
getProjectShellById: () => Effect.succeed(Option.none()),
getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
getFullThreadDiffContext: () => Effect.die("unused"),
getThreadShellById: () => Effect.succeed(Option.none()),
getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
getProjectShellById: () => Effect.succeed(Option.none()),
getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
getFullThreadDiffContext: () => Effect.die("unused"),
getThreadShellById: () => Effect.succeed(Option.none()),
getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
getProjectShellById: () => Effect.succeed(Option.none()),
getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
getFullThreadDiffContext: () => Effect.die("unused"),
getThreadShellById: () => Effect.succeed(Option.none()),
getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
getProjectShellById: () => Effect.succeed(Option.none()),
getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
getThreadCheckpointContext: () => Effect.succeed(Option.none()),
getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
getFullThreadDiffContext: () => Effect.succeed(Option.none()),
getThreadShellById: () => Effect.succeed(Option.none()),
getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down
1 change: 1 addition & 0 deletions apps/server/src/orchestration/Layers/CheckpointReactor.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
},
}),
rollbackConversation,
forkConversation: () => unsupported(),
get streamEvents() {
return Stream.fromPubSub(runtimeEventPubSub);
},
Expand Down
1 change: 1 addition & 0 deletions apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
getProjectShellById: () => Effect.succeed(Option.none()),
getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
getThreadCheckpointContext: () => Effect.succeed(Option.none()),
getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
getFullThreadDiffContext: () => Effect.succeed(Option.none()),
getThreadShellById: () => Effect.succeed(Option.none()),
getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down
176 changes: 164 additions & 12 deletions apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
it.effect("resolves user fork boundaries from completed provider turns", () =>
Effect.gen(function* () {
const snapshotQuery = yield* ProjectionSnapshotQuery;
const sql = yield* SqlClient.SqlClient;

yield* sql`DELETE FROM projection_turns`;
yield* sql`DELETE FROM projection_thread_messages`;
yield* sql`
INSERT INTO projection_thread_messages (
message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
)
VALUES
('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
'2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
'2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
'2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
'2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
'2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
'2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
'2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
'2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
'failed after running', 0, '2026-08-20T00:00:08.000Z',
'2026-08-20T00:00:08.000Z')
`;
yield* sql`
INSERT INTO projection_turns (
thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
)
VALUES
('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
'2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
'2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
'2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
'2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
'2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
'2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
'2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
NULL, NULL, NULL, '[]')
`;

const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-user-failed-first"),
);
const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-user-1"),
);
const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-user-failed"),
);
const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-user-queued"),
);
const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-user-failed-late"),
);
const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-user-after-error"),
);
const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-user-after-running"),
);
const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
ThreadId.make("thread-fork-boundary"),
MessageId.make("message-unknown"),
);

assert.equal(failedFirst._tag, "Some");
if (failedFirst._tag === "Some") {
assert.deepEqual(failedFirst.value, {
checkpointTurnCount: 0,
checkpointRef: null,
turnId: null,
});
}
assert.equal(first._tag, "Some");
if (first._tag === "Some") {
assert.deepEqual(first.value, {
checkpointTurnCount: 0,
checkpointRef: null,
turnId: null,
});
}
assert.equal(queuedAfterFailedStart._tag, "Some");
if (queuedAfterFailedStart._tag === "Some") {
assert.deepEqual(queuedAfterFailedStart.value, {
checkpointTurnCount: 1,
checkpointRef: CheckpointRef.make("checkpoint-1"),
turnId: TurnId.make("turn-success-1"),
});
}
assert.equal(failedBetweenCompletedTurns._tag, "Some");
if (failedBetweenCompletedTurns._tag === "Some") {
assert.deepEqual(failedBetweenCompletedTurns.value, {
checkpointTurnCount: 1,
checkpointRef: CheckpointRef.make("checkpoint-1"),
turnId: TurnId.make("turn-success-1"),
});
}
assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
if (failedAfterTwoCompletedTurns._tag === "Some") {
assert.deepEqual(failedAfterTwoCompletedTurns.value, {
checkpointTurnCount: 2,
checkpointRef: CheckpointRef.make("checkpoint-2"),
turnId: TurnId.make("turn-success-2"),
});
}
assert.equal(failedAfterCheckpointError._tag, "Some");
if (failedAfterCheckpointError._tag === "Some") {
assert.deepEqual(failedAfterCheckpointError.value, {
checkpointTurnCount: 3,
checkpointRef: null,
turnId: null,
});
}
assert.equal(failedAfterRunningTurn._tag, "None");
assert.equal(unknown._tag, "None");

yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
}),
);

it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
Effect.gen(function* () {
const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
)
VALUES
(
'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
'Forked from parent', '{"parentThreadId":"parent"}', NULL,
'2026-03-01T00:00:00.000Z'
),
(
'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
assert.equal(detailWithPinnedRequests._tag, "Some");
if (detailWithPinnedRequests._tag === "Some") {
const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
assert.equal(detailWithPinnedRequests.value.activities.length, 503);
assert.equal(ids.includes(asEventId("approval-old")), true);
assert.equal(ids.includes(asEventId("user-input-old")), true);
assert.equal(ids.includes(asEventId("user-input-closed")), false);
assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
const ids = new Set(
detailWithPinnedRequests.value.activities.map((activity) => activity.id),
);
assert.equal(ids.has(asEventId("fork-lineage-old")), true);
assert.equal(detailWithPinnedRequests.value.activities.length, 504);
assert.equal(ids.has(asEventId("approval-old")), true);
assert.equal(ids.has(asEventId("user-input-old")), true);
assert.equal(ids.has(asEventId("user-input-closed")), false);
assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
}

const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
turnLimit: 2,
});
assert.equal(windowWithPinnedRequests._tag, "Some");
if (windowWithPinnedRequests._tag === "Some") {
const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
assert.equal(ids.includes(asEventId("approval-old")), true);
assert.equal(ids.includes(asEventId("user-input-old")), true);
assert.equal(ids.includes(asEventId("user-input-closed")), false);
assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
const ids = new Set(
windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
);
assert.equal(ids.has(asEventId("fork-lineage-old")), true);
assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
assert.equal(ids.has(asEventId("approval-old")), true);
assert.equal(ids.has(asEventId("user-input-old")), true);
assert.equal(ids.has(asEventId("user-input-closed")), false);
assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
}
}),
);
Expand Down
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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sameerr03
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2
commits into

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints
#7
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0bbbf93

feat(server): fork Codex threads at checkpoints


sameerr03 Aug 20, 2026
38fd5b0

fix(server): clean up partial fork worktrees


sameerr03 Aug 20, 2026

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1 change: 1 addition & 0 deletions
apps/server/src/auth/RpcAuthorization.ts

View file


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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
 [ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
 [ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down

5 changes: 5 additions & 0 deletions
apps/server/src/checkpointing/CheckpointDiffQuery.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getThreadCheckpointContextCalls += 1;
 return Option.none();
 }),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () =>
 Effect.sync(() => {
 getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/CheckpointReactor.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
 },
 }),
 rollbackConversation,
 forkConversation: () => unsupported(),
 get streamEvents() {
 return Stream.fromPubSub(runtimeEventPubSub);
 },
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

176 changes: 164 additions & 12 deletions
apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
 it.effect("resolves user fork boundaries from completed provider turns", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
 const sql = yield* SqlClient.SqlClient;

 yield* sql`DELETE FROM projection_turns`;
 yield* sql`DELETE FROM projection_thread_messages`;
 yield* sql`
 INSERT INTO projection_thread_messages (
 message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
 )
 VALUES
 ('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
 '2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
 ('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
 ('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
 '2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
 ('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
 ('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
 '2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
 ('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
 ('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
 '2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
 ('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
 ('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
 'failed after running', 0, '2026-08-20T00:00:08.000Z',
 '2026-08-20T00:00:08.000Z')
 `;
 yield* sql`
 INSERT INTO projection_turns (
 thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
 checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
 )
 VALUES
 ('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
 '2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
 '2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
 '2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
 ('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
 NULL, NULL, NULL, '[]')
 `;

 const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-first"),
 );
 const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-1"),
 );
 const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed"),
 );
 const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-queued"),
 );
 const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-late"),
 );
 const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-error"),
 );
 const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-running"),
 );
 const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-unknown"),
 );

 assert.equal(failedFirst._tag, "Some");
 if (failedFirst._tag === "Some") {
 assert.deepEqual(failedFirst.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(first._tag, "Some");
 if (first._tag === "Some") {
 assert.deepEqual(first.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(queuedAfterFailedStart._tag, "Some");
 if (queuedAfterFailedStart._tag === "Some") {
 assert.deepEqual(queuedAfterFailedStart.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedBetweenCompletedTurns._tag, "Some");
 if (failedBetweenCompletedTurns._tag === "Some") {
 assert.deepEqual(failedBetweenCompletedTurns.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
 if (failedAfterTwoCompletedTurns._tag === "Some") {
 assert.deepEqual(failedAfterTwoCompletedTurns.value, {
 checkpointTurnCount: 2,
 checkpointRef: CheckpointRef.make("checkpoint-2"),
 turnId: TurnId.make("turn-success-2"),
 });
 }
 assert.equal(failedAfterCheckpointError._tag, "Some");
 if (failedAfterCheckpointError._tag === "Some") {
 assert.deepEqual(failedAfterCheckpointError.value, {
 checkpointTurnCount: 3,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(failedAfterRunningTurn._tag, "None");
 assert.equal(unknown._tag, "None");

 yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
 yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
 }),
 );

 it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
 )
 VALUES
 (
 'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
 'Forked from parent', '{"parentThreadId":"parent"}', NULL,
 '2026-03-01T00:00:00.000Z'
 ),
 (
 'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
 'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
 assert.equal(detailWithPinnedRequests._tag, "Some");
 if (detailWithPinnedRequests._tag === "Some") {
 const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
 assert.equal(detailWithPinnedRequests.value.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 detailWithPinnedRequests.value.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(detailWithPinnedRequests.value.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }

 const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
 turnLimit: 2,
 });
 assert.equal(windowWithPinnedRequests._tag, "Some");
 if (windowWithPinnedRequests._tag === "Some") {
 const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }
 }),
 );
Expand Down
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints
#7
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0bbbf93

feat(server): fork Codex threads at checkpoints


sameerr03 Aug 20, 2026
38fd5b0

fix(server): clean up partial fork worktrees


sameerr03 Aug 20, 2026

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1 change: 1 addition & 0 deletions
apps/server/src/auth/RpcAuthorization.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
 [ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
 [ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down

5 changes: 5 additions & 0 deletions
apps/server/src/checkpointing/CheckpointDiffQuery.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getThreadCheckpointContextCalls += 1;
 return Option.none();
 }),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () =>
 Effect.sync(() => {
 getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/CheckpointReactor.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
 },
 }),
 rollbackConversation,
 forkConversation: () => unsupported(),
 get streamEvents() {
 return Stream.fromPubSub(runtimeEventPubSub);
 },
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

176 changes: 164 additions & 12 deletions
apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
 it.effect("resolves user fork boundaries from completed provider turns", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
 const sql = yield* SqlClient.SqlClient;

 yield* sql`DELETE FROM projection_turns`;
 yield* sql`DELETE FROM projection_thread_messages`;
 yield* sql`
 INSERT INTO projection_thread_messages (
 message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
 )
 VALUES
 ('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
 '2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
 ('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
 ('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
 '2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
 ('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
 ('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
 '2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
 ('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
 ('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
 '2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
 ('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
 ('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
 'failed after running', 0, '2026-08-20T00:00:08.000Z',
 '2026-08-20T00:00:08.000Z')
 `;
 yield* sql`
 INSERT INTO projection_turns (
 thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
 checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
 )
 VALUES
 ('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
 '2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
 '2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
 '2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
 ('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
 NULL, NULL, NULL, '[]')
 `;

 const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-first"),
 );
 const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-1"),
 );
 const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed"),
 );
 const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-queued"),
 );
 const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-late"),
 );
 const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-error"),
 );
 const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-running"),
 );
 const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-unknown"),
 );

 assert.equal(failedFirst._tag, "Some");
 if (failedFirst._tag === "Some") {
 assert.deepEqual(failedFirst.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(first._tag, "Some");
 if (first._tag === "Some") {
 assert.deepEqual(first.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(queuedAfterFailedStart._tag, "Some");
 if (queuedAfterFailedStart._tag === "Some") {
 assert.deepEqual(queuedAfterFailedStart.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedBetweenCompletedTurns._tag, "Some");
 if (failedBetweenCompletedTurns._tag === "Some") {
 assert.deepEqual(failedBetweenCompletedTurns.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
 if (failedAfterTwoCompletedTurns._tag === "Some") {
 assert.deepEqual(failedAfterTwoCompletedTurns.value, {
 checkpointTurnCount: 2,
 checkpointRef: CheckpointRef.make("checkpoint-2"),
 turnId: TurnId.make("turn-success-2"),
 });
 }
 assert.equal(failedAfterCheckpointError._tag, "Some");
 if (failedAfterCheckpointError._tag === "Some") {
 assert.deepEqual(failedAfterCheckpointError.value, {
 checkpointTurnCount: 3,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(failedAfterRunningTurn._tag, "None");
 assert.equal(unknown._tag, "None");

 yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
 yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
 }),
 );

 it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
 )
 VALUES
 (
 'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
 'Forked from parent', '{"parentThreadId":"parent"}', NULL,
 '2026-03-01T00:00:00.000Z'
 ),
 (
 'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
 'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
 assert.equal(detailWithPinnedRequests._tag, "Some");
 if (detailWithPinnedRequests._tag === "Some") {
 const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
 assert.equal(detailWithPinnedRequests.value.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 detailWithPinnedRequests.value.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(detailWithPinnedRequests.value.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }

 const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
 turnLimit: 2,
 });
 assert.equal(windowWithPinnedRequests._tag, "Some");
 if (windowWithPinnedRequests._tag === "Some") {
 const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }
 }),
 );
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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 Draft

sameerr03
wants to merge
2
commits into

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints
#7
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0bbbf93

feat(server): fork Codex threads at checkpoints


sameerr03 Aug 20, 2026
38fd5b0

fix(server): clean up partial fork worktrees


sameerr03 Aug 20, 2026

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1 change: 1 addition & 0 deletions
apps/server/src/auth/RpcAuthorization.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
 [ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
 [ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down

5 changes: 5 additions & 0 deletions
apps/server/src/checkpointing/CheckpointDiffQuery.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getThreadCheckpointContextCalls += 1;
 return Option.none();
 }),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () =>
 Effect.sync(() => {
 getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/CheckpointReactor.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
 },
 }),
 rollbackConversation,
 forkConversation: () => unsupported(),
 get streamEvents() {
 return Stream.fromPubSub(runtimeEventPubSub);
 },
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

176 changes: 164 additions & 12 deletions
apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
 it.effect("resolves user fork boundaries from completed provider turns", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
 const sql = yield* SqlClient.SqlClient;

 yield* sql`DELETE FROM projection_turns`;
 yield* sql`DELETE FROM projection_thread_messages`;
 yield* sql`
 INSERT INTO projection_thread_messages (
 message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
 )
 VALUES
 ('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
 '2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
 ('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
 ('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
 '2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
 ('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
 ('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
 '2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
 ('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
 ('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
 '2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
 ('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
 ('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
 'failed after running', 0, '2026-08-20T00:00:08.000Z',
 '2026-08-20T00:00:08.000Z')
 `;
 yield* sql`
 INSERT INTO projection_turns (
 thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
 checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
 )
 VALUES
 ('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
 '2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
 '2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
 '2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
 ('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
 NULL, NULL, NULL, '[]')
 `;

 const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-first"),
 );
 const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-1"),
 );
 const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed"),
 );
 const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-queued"),
 );
 const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-late"),
 );
 const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-error"),
 );
 const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-running"),
 );
 const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-unknown"),
 );

 assert.equal(failedFirst._tag, "Some");
 if (failedFirst._tag === "Some") {
 assert.deepEqual(failedFirst.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(first._tag, "Some");
 if (first._tag === "Some") {
 assert.deepEqual(first.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(queuedAfterFailedStart._tag, "Some");
 if (queuedAfterFailedStart._tag === "Some") {
 assert.deepEqual(queuedAfterFailedStart.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedBetweenCompletedTurns._tag, "Some");
 if (failedBetweenCompletedTurns._tag === "Some") {
 assert.deepEqual(failedBetweenCompletedTurns.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
 if (failedAfterTwoCompletedTurns._tag === "Some") {
 assert.deepEqual(failedAfterTwoCompletedTurns.value, {
 checkpointTurnCount: 2,
 checkpointRef: CheckpointRef.make("checkpoint-2"),
 turnId: TurnId.make("turn-success-2"),
 });
 }
 assert.equal(failedAfterCheckpointError._tag, "Some");
 if (failedAfterCheckpointError._tag === "Some") {
 assert.deepEqual(failedAfterCheckpointError.value, {
 checkpointTurnCount: 3,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(failedAfterRunningTurn._tag, "None");
 assert.equal(unknown._tag, "None");

 yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
 yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
 }),
 );

 it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
 )
 VALUES
 (
 'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
 'Forked from parent', '{"parentThreadId":"parent"}', NULL,
 '2026-03-01T00:00:00.000Z'
 ),
 (
 'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
 'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
 assert.equal(detailWithPinnedRequests._tag, "Some");
 if (detailWithPinnedRequests._tag === "Some") {
 const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
 assert.equal(detailWithPinnedRequests.value.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 detailWithPinnedRequests.value.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(detailWithPinnedRequests.value.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }

 const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
 turnLimit: 2,
 });
 assert.equal(windowWithPinnedRequests._tag, "Some");
 if (windowWithPinnedRequests._tag === "Some") {
 const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }
 }),
 );
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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 Draft

sameerr03
wants to merge
2
commits into

from

 Draft


[DO NOT MERGE] feat(server): fork Codex threads at checkpoints
#7
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0bbbf93

feat(server): fork Codex threads at checkpoints


sameerr03 Aug 20, 2026
38fd5b0

fix(server): clean up partial fork worktrees


sameerr03 Aug 20, 2026

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1 change: 1 addition & 0 deletions
apps/server/src/auth/RpcAuthorization.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
 [ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
 [ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down

5 changes: 5 additions & 0 deletions
apps/server/src/checkpointing/CheckpointDiffQuery.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getThreadCheckpointContextCalls += 1;
 return Option.none();
 }),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () =>
 Effect.sync(() => {
 getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/CheckpointReactor.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
 },
 }),
 rollbackConversation,
 forkConversation: () => unsupported(),
 get streamEvents() {
 return Stream.fromPubSub(runtimeEventPubSub);
 },
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

176 changes: 164 additions & 12 deletions
apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
 it.effect("resolves user fork boundaries from completed provider turns", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
 const sql = yield* SqlClient.SqlClient;

 yield* sql`DELETE FROM projection_turns`;
 yield* sql`DELETE FROM projection_thread_messages`;
 yield* sql`
 INSERT INTO projection_thread_messages (
 message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
 )
 VALUES
 ('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
 '2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
 ('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
 ('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
 '2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
 ('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
 ('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
 '2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
 ('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
 ('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
 '2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
 ('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
 ('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
 'failed after running', 0, '2026-08-20T00:00:08.000Z',
 '2026-08-20T00:00:08.000Z')
 `;
 yield* sql`
 INSERT INTO projection_turns (
 thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
 checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
 )
 VALUES
 ('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
 '2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
 '2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
 '2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
 ('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
 NULL, NULL, NULL, '[]')
 `;

 const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-first"),
 );
 const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-1"),
 );
 const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed"),
 );
 const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-queued"),
 );
 const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-late"),
 );
 const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-error"),
 );
 const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-running"),
 );
 const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-unknown"),
 );

 assert.equal(failedFirst._tag, "Some");
 if (failedFirst._tag === "Some") {
 assert.deepEqual(failedFirst.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(first._tag, "Some");
 if (first._tag === "Some") {
 assert.deepEqual(first.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(queuedAfterFailedStart._tag, "Some");
 if (queuedAfterFailedStart._tag === "Some") {
 assert.deepEqual(queuedAfterFailedStart.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedBetweenCompletedTurns._tag, "Some");
 if (failedBetweenCompletedTurns._tag === "Some") {
 assert.deepEqual(failedBetweenCompletedTurns.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
 if (failedAfterTwoCompletedTurns._tag === "Some") {
 assert.deepEqual(failedAfterTwoCompletedTurns.value, {
 checkpointTurnCount: 2,
 checkpointRef: CheckpointRef.make("checkpoint-2"),
 turnId: TurnId.make("turn-success-2"),
 });
 }
 assert.equal(failedAfterCheckpointError._tag, "Some");
 if (failedAfterCheckpointError._tag === "Some") {
 assert.deepEqual(failedAfterCheckpointError.value, {
 checkpointTurnCount: 3,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(failedAfterRunningTurn._tag, "None");
 assert.equal(unknown._tag, "None");

 yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
 yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
 }),
 );

 it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
 )
 VALUES
 (
 'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
 'Forked from parent', '{"parentThreadId":"parent"}', NULL,
 '2026-03-01T00:00:00.000Z'
 ),
 (
 'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
 'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
 assert.equal(detailWithPinnedRequests._tag, "Some");
 if (detailWithPinnedRequests._tag === "Some") {
 const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
 assert.equal(detailWithPinnedRequests.value.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 detailWithPinnedRequests.value.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(detailWithPinnedRequests.value.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }

 const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
 turnLimit: 2,
 });
 assert.equal(windowWithPinnedRequests._tag, "Some");
 if (windowWithPinnedRequests._tag === "Some") {
 const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }
 }),
 );
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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sameerr03
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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints
#7
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0bbbf93

feat(server): fork Codex threads at checkpoints


sameerr03 Aug 20, 2026
38fd5b0

fix(server): clean up partial fork worktrees


sameerr03 Aug 20, 2026

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1 change: 1 addition & 0 deletions
apps/server/src/auth/RpcAuthorization.ts

View file


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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
 [ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
 [ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down

5 changes: 5 additions & 0 deletions
apps/server/src/checkpointing/CheckpointDiffQuery.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getThreadCheckpointContextCalls += 1;
 return Option.none();
 }),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () =>
 Effect.sync(() => {
 getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/CheckpointReactor.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
 },
 }),
 rollbackConversation,
 forkConversation: () => unsupported(),
 get streamEvents() {
 return Stream.fromPubSub(runtimeEventPubSub);
 },
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

176 changes: 164 additions & 12 deletions
apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
 it.effect("resolves user fork boundaries from completed provider turns", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
 const sql = yield* SqlClient.SqlClient;

 yield* sql`DELETE FROM projection_turns`;
 yield* sql`DELETE FROM projection_thread_messages`;
 yield* sql`
 INSERT INTO projection_thread_messages (
 message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
 )
 VALUES
 ('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
 '2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
 ('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
 ('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
 '2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
 ('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
 ('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
 '2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
 ('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
 ('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
 '2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
 ('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
 ('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
 'failed after running', 0, '2026-08-20T00:00:08.000Z',
 '2026-08-20T00:00:08.000Z')
 `;
 yield* sql`
 INSERT INTO projection_turns (
 thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
 checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
 )
 VALUES
 ('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
 '2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
 '2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
 '2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
 ('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
 NULL, NULL, NULL, '[]')
 `;

 const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-first"),
 );
 const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-1"),
 );
 const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed"),
 );
 const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-queued"),
 );
 const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-late"),
 );
 const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-error"),
 );
 const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-running"),
 );
 const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-unknown"),
 );

 assert.equal(failedFirst._tag, "Some");
 if (failedFirst._tag === "Some") {
 assert.deepEqual(failedFirst.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(first._tag, "Some");
 if (first._tag === "Some") {
 assert.deepEqual(first.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(queuedAfterFailedStart._tag, "Some");
 if (queuedAfterFailedStart._tag === "Some") {
 assert.deepEqual(queuedAfterFailedStart.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedBetweenCompletedTurns._tag, "Some");
 if (failedBetweenCompletedTurns._tag === "Some") {
 assert.deepEqual(failedBetweenCompletedTurns.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
 if (failedAfterTwoCompletedTurns._tag === "Some") {
 assert.deepEqual(failedAfterTwoCompletedTurns.value, {
 checkpointTurnCount: 2,
 checkpointRef: CheckpointRef.make("checkpoint-2"),
 turnId: TurnId.make("turn-success-2"),
 });
 }
 assert.equal(failedAfterCheckpointError._tag, "Some");
 if (failedAfterCheckpointError._tag === "Some") {
 assert.deepEqual(failedAfterCheckpointError.value, {
 checkpointTurnCount: 3,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(failedAfterRunningTurn._tag, "None");
 assert.equal(unknown._tag, "None");

 yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
 yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
 }),
 );

 it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
 )
 VALUES
 (
 'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
 'Forked from parent', '{"parentThreadId":"parent"}', NULL,
 '2026-03-01T00:00:00.000Z'
 ),
 (
 'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
 'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
 assert.equal(detailWithPinnedRequests._tag, "Some");
 if (detailWithPinnedRequests._tag === "Some") {
 const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
 assert.equal(detailWithPinnedRequests.value.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 detailWithPinnedRequests.value.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(detailWithPinnedRequests.value.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }

 const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
 turnLimit: 2,
 });
 assert.equal(windowWithPinnedRequests._tag, "Some");
 if (windowWithPinnedRequests._tag === "Some") {
 const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }
 }),
 );
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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sameerr03
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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints
#7
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0bbbf93

feat(server): fork Codex threads at checkpoints


sameerr03 Aug 20, 2026
38fd5b0

fix(server): clean up partial fork worktrees


sameerr03 Aug 20, 2026

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1 change: 1 addition & 0 deletions
apps/server/src/auth/RpcAuthorization.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
 [ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
 [ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down

5 changes: 5 additions & 0 deletions
apps/server/src/checkpointing/CheckpointDiffQuery.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getThreadCheckpointContextCalls += 1;
 return Option.none();
 }),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () =>
 Effect.sync(() => {
 getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/CheckpointReactor.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
 },
 }),
 rollbackConversation,
 forkConversation: () => unsupported(),
 get streamEvents() {
 return Stream.fromPubSub(runtimeEventPubSub);
 },
Expand Down

1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand Down

176 changes: 164 additions & 12 deletions
apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
 it.effect("resolves user fork boundaries from completed provider turns", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
 const sql = yield* SqlClient.SqlClient;

 yield* sql`DELETE FROM projection_turns`;
 yield* sql`DELETE FROM projection_thread_messages`;
 yield* sql`
 INSERT INTO projection_thread_messages (
 message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
 )
 VALUES
 ('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
 '2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
 ('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
 ('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
 '2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
 ('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
 ('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
 '2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
 ('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
 ('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
 '2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
 ('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
 ('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
 'failed after running', 0, '2026-08-20T00:00:08.000Z',
 '2026-08-20T00:00:08.000Z')
 `;
 yield* sql`
 INSERT INTO projection_turns (
 thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
 checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
 )
 VALUES
 ('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
 '2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
 '2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
 '2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
 ('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
 NULL, NULL, NULL, '[]')
 `;

 const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-first"),
 );
 const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-1"),
 );
 const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed"),
 );
 const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-queued"),
 );
 const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-late"),
 );
 const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-error"),
 );
 const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-running"),
 );
 const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-unknown"),
 );

 assert.equal(failedFirst._tag, "Some");
 if (failedFirst._tag === "Some") {
 assert.deepEqual(failedFirst.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(first._tag, "Some");
 if (first._tag === "Some") {
 assert.deepEqual(first.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(queuedAfterFailedStart._tag, "Some");
 if (queuedAfterFailedStart._tag === "Some") {
 assert.deepEqual(queuedAfterFailedStart.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedBetweenCompletedTurns._tag, "Some");
 if (failedBetweenCompletedTurns._tag === "Some") {
 assert.deepEqual(failedBetweenCompletedTurns.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
 if (failedAfterTwoCompletedTurns._tag === "Some") {
 assert.deepEqual(failedAfterTwoCompletedTurns.value, {
 checkpointTurnCount: 2,
 checkpointRef: CheckpointRef.make("checkpoint-2"),
 turnId: TurnId.make("turn-success-2"),
 });
 }
 assert.equal(failedAfterCheckpointError._tag, "Some");
 if (failedAfterCheckpointError._tag === "Some") {
 assert.deepEqual(failedAfterCheckpointError.value, {
 checkpointTurnCount: 3,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(failedAfterRunningTurn._tag, "None");
 assert.equal(unknown._tag, "None");

 yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
 yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
 }),
 );

 it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
 )
 VALUES
 (
 'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
 'Forked from parent', '{"parentThreadId":"parent"}', NULL,
 '2026-03-01T00:00:00.000Z'
 ),
 (
 'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
 'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
 assert.equal(detailWithPinnedRequests._tag, "Some");
 if (detailWithPinnedRequests._tag === "Some") {
 const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
 assert.equal(detailWithPinnedRequests.value.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 detailWithPinnedRequests.value.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(detailWithPinnedRequests.value.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }

 const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
 turnLimit: 2,
 });
 assert.equal(windowWithPinnedRequests._tag, "Some");
 if (windowWithPinnedRequests._tag === "Some") {
 const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }
 }),
 );
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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[DO NOT MERGE] feat(server): fork Codex threads at checkpoints#7

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 Draft

sameerr03
wants to merge
2
commits into

from

 Draft


[DO NOT MERGE] feat(server): fork Codex threads at checkpoints
#7
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0bbbf93

feat(server): fork Codex threads at checkpoints


sameerr03 Aug 20, 2026
38fd5b0

fix(server): clean up partial fork worktrees


sameerr03 Aug 20, 2026

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1 change: 1 addition & 0 deletions
apps/server/src/auth/RpcAuthorization.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -25,6 +25,7 @@ export const RPC_REQUIRED_SCOPES = {
 [ORCHESTRATION_WS_METHODS.getWorkflowScript]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getTurnDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getFullThreadDiff]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.forkThread]: AuthOrchestrationOperateScope,
 [ORCHESTRATION_WS_METHODS.searchThreads]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.subscribeShell]: AuthOrchestrationReadScope,
 [ORCHESTRATION_WS_METHODS.getArchivedShellSnapshot]: AuthOrchestrationReadScope,
Expand Down

5 changes: 5 additions & 0 deletions
apps/server/src/checkpointing/CheckpointDiffQuery.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -93,6 +93,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getThreadCheckpointContextCalls += 1;
 return Option.none();
 }),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () =>
 Effect.sync(() => {
 getFullThreadDiffContextCalls += 1;
Expand DownExpand Up@@ -198,6 +199,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -282,6 +284,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -351,6 +354,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.some(threadCheckpointContext)),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.die("unused"),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
Expand DownExpand Up@@ -405,6 +409,7 @@ describe("CheckpointDiffQuery.layer", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
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1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/CheckpointReactor.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -125,6 +125,7 @@ function createProviderServiceHarness(
 },
 }),
 rollbackConversation,
 forkConversation: () => unsupported(),
 get streamEvents() {
 return Stream.fromPubSub(runtimeEventPubSub);
 },
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1 change: 1 addition & 0 deletions
apps/server/src/orchestration/Layers/OrchestrationEngine.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -203,6 +203,7 @@ describe("OrchestrationEngine", () => {
 getProjectShellById: () => Effect.succeed(Option.none()),
 getFirstActiveThreadIdByProjectId: () => Effect.succeed(Option.none()),
 getThreadCheckpointContext: () => Effect.succeed(Option.none()),
 getThreadForkBoundaryBeforeMessage: () => Effect.succeed(Option.none()),
 getFullThreadDiffContext: () => Effect.succeed(Option.none()),
 getThreadShellById: () => Effect.succeed(Option.none()),
 getThreadDetailById: () => Effect.succeed(Option.none()),
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176 changes: 164 additions & 12 deletions
apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -39,6 +39,147 @@ const projectionSnapshotLayer = it.layer(
);

projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
 it.effect("resolves user fork boundaries from completed provider turns", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
 const sql = yield* SqlClient.SqlClient;

 yield* sql`DELETE FROM projection_turns`;
 yield* sql`DELETE FROM projection_thread_messages`;
 yield* sql`
 INSERT INTO projection_thread_messages (
 message_id, thread_id, turn_id, role, text, is_streaming, created_at, updated_at
 )
 VALUES
 ('message-user-failed-first', 'thread-fork-boundary', NULL, 'user', 'failed first', 0,
 '2026-08-20T00:00:00.000Z', '2026-08-20T00:00:00.000Z'),
 ('message-user-1', 'thread-fork-boundary', NULL, 'user', 'first success', 0,
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z'),
 ('message-user-failed', 'thread-fork-boundary', NULL, 'user', 'failed middle', 0,
 '2026-08-20T00:00:02.000Z', '2026-08-20T00:00:02.000Z'),
 ('message-user-queued', 'thread-fork-boundary', NULL, 'user', 'queued follow-up', 0,
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z'),
 ('message-user-failed-late', 'thread-fork-boundary', NULL, 'user', 'failed late', 0,
 '2026-08-20T00:00:04.000Z', '2026-08-20T00:00:04.000Z'),
 ('message-user-error', 'thread-fork-boundary', NULL, 'user', 'checkpoint fails', 0,
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z'),
 ('message-user-after-error', 'thread-fork-boundary', NULL, 'user', 'failed after error', 0,
 '2026-08-20T00:00:06.000Z', '2026-08-20T00:00:06.000Z'),
 ('message-user-running', 'thread-fork-boundary', NULL, 'user', 'still running', 0,
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z'),
 ('message-user-after-running', 'thread-fork-boundary', NULL, 'user',
 'failed after running', 0, '2026-08-20T00:00:08.000Z',
 '2026-08-20T00:00:08.000Z')
 `;
 yield* sql`
 INSERT INTO projection_turns (
 thread_id, turn_id, pending_message_id, state, requested_at, started_at, completed_at,
 checkpoint_turn_count, checkpoint_ref, checkpoint_status, checkpoint_files_json
 )
 VALUES
 ('thread-fork-boundary', 'turn-success-1', 'message-user-1', 'completed',
 '2026-08-20T00:00:01.000Z', '2026-08-20T00:00:01.000Z',
 '2026-08-20T00:00:02.000Z', 1, 'checkpoint-1', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-success-2', 'message-user-queued', 'completed',
 '2026-08-20T00:00:03.000Z', '2026-08-20T00:00:03.000Z',
 '2026-08-20T00:00:04.000Z', 2, 'checkpoint-2', 'ready', '[]'),
 ('thread-fork-boundary', 'turn-checkpoint-error', 'message-user-error', 'error',
 '2026-08-20T00:00:05.000Z', '2026-08-20T00:00:05.000Z',
 '2026-08-20T00:00:06.000Z', 3, 'checkpoint-3', 'error', '[]'),
 ('thread-fork-boundary', 'turn-running', 'message-user-running', 'running',
 '2026-08-20T00:00:07.000Z', '2026-08-20T00:00:07.000Z', NULL,
 NULL, NULL, NULL, '[]')
 `;

 const failedFirst = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-first"),
 );
 const first = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-1"),
 );
 const failedBetweenCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed"),
 );
 const queuedAfterFailedStart = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-queued"),
 );
 const failedAfterTwoCompletedTurns = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-failed-late"),
 );
 const failedAfterCheckpointError = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-error"),
 );
 const failedAfterRunningTurn = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-user-after-running"),
 );
 const unknown = yield* snapshotQuery.getThreadForkBoundaryBeforeMessage(
 ThreadId.make("thread-fork-boundary"),
 MessageId.make("message-unknown"),
 );

 assert.equal(failedFirst._tag, "Some");
 if (failedFirst._tag === "Some") {
 assert.deepEqual(failedFirst.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(first._tag, "Some");
 if (first._tag === "Some") {
 assert.deepEqual(first.value, {
 checkpointTurnCount: 0,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(queuedAfterFailedStart._tag, "Some");
 if (queuedAfterFailedStart._tag === "Some") {
 assert.deepEqual(queuedAfterFailedStart.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedBetweenCompletedTurns._tag, "Some");
 if (failedBetweenCompletedTurns._tag === "Some") {
 assert.deepEqual(failedBetweenCompletedTurns.value, {
 checkpointTurnCount: 1,
 checkpointRef: CheckpointRef.make("checkpoint-1"),
 turnId: TurnId.make("turn-success-1"),
 });
 }
 assert.equal(failedAfterTwoCompletedTurns._tag, "Some");
 if (failedAfterTwoCompletedTurns._tag === "Some") {
 assert.deepEqual(failedAfterTwoCompletedTurns.value, {
 checkpointTurnCount: 2,
 checkpointRef: CheckpointRef.make("checkpoint-2"),
 turnId: TurnId.make("turn-success-2"),
 });
 }
 assert.equal(failedAfterCheckpointError._tag, "Some");
 if (failedAfterCheckpointError._tag === "Some") {
 assert.deepEqual(failedAfterCheckpointError.value, {
 checkpointTurnCount: 3,
 checkpointRef: null,
 turnId: null,
 });
 }
 assert.equal(failedAfterRunningTurn._tag, "None");
 assert.equal(unknown._tag, "None");

 yield* sql`DELETE FROM projection_turns WHERE thread_id = 'thread-fork-boundary'`;
 yield* sql`DELETE FROM projection_thread_messages WHERE thread_id = 'thread-fork-boundary'`;
 }),
 );

 it.effect("hydrates read model from projection tables and computes snapshot sequence", () =>
 Effect.gen(function* () {
 const snapshotQuery = yield* ProjectionSnapshotQuery;
Expand DownExpand Up@@ -2333,6 +2474,11 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 activity_id, thread_id, turn_id, tone, kind, summary, payload_json, sequence, created_at
 )
 VALUES
 (
 'fork-lineage-old', 'thread-w', NULL, 'info', 'thread.forked',
 'Forked from parent', '{"parentThreadId":"parent"}', NULL,
 '2026-03-01T00:00:00.000Z'
 ),
 (
 'approval-old', 'thread-w', NULL, 'approval', 'approval.requested',
 'Approve old command', '{"requestId":"approval-1"}', NULL,
Expand DownExpand Up@@ -2382,25 +2528,31 @@ projectionSnapshotLayer("ProjectionSnapshotQuery windowed thread detail", (it) =
 const detailWithPinnedRequests = yield* snapshotQuery.getThreadDetailById(threadW);
 assert.equal(detailWithPinnedRequests._tag, "Some");
 if (detailWithPinnedRequests._tag === "Some") {
 const ids = detailWithPinnedRequests.value.activities.map((activity) => activity.id);
 assert.equal(detailWithPinnedRequests.value.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 detailWithPinnedRequests.value.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(detailWithPinnedRequests.value.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }

 const windowWithPinnedRequests = yield* snapshotQuery.getThreadDetailSnapshot(threadW, {
 turnLimit: 2,
 });
 assert.equal(windowWithPinnedRequests._tag, "Some");
 if (windowWithPinnedRequests._tag === "Some") {
 const ids = windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 503);
 assert.equal(ids.includes(asEventId("approval-old")), true);
 assert.equal(ids.includes(asEventId("user-input-old")), true);
 assert.equal(ids.includes(asEventId("user-input-closed")), false);
 assert.equal(ids.includes(asEventId("user-input-tied-z-request")), true);
 const ids = new Set(
 windowWithPinnedRequests.value.thread.activities.map((activity) => activity.id),
 );
 assert.equal(ids.has(asEventId("fork-lineage-old")), true);
 assert.equal(windowWithPinnedRequests.value.thread.activities.length, 504);
 assert.equal(ids.has(asEventId("approval-old")), true);
 assert.equal(ids.has(asEventId("user-input-old")), true);
 assert.equal(ids.has(asEventId("user-input-closed")), false);
 assert.equal(ids.has(asEventId("user-input-tied-z-request")), true);
 }
 }),
 );
Expand Down
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