Add recency sorting to project/list (#41223)

## What changed - Include `recencyAt`, derived from the newest non-archived assigned thread, in project responses. - Let `project/list` sort by `position` or `recencyAt` in either direction, with recency as the default descending order for that key and projects without activity placed last. - Encode the sort key, direction, and millisecond-precision anchor in new cursors while retaining existing ascending-position cursors. - Add an index for project recency lookups and document the API's sorting and pagination behavior. ## Testing - Cover recency updates when threads are assigned, archived, unarchived, or deleted. - Cover ordering, null handling, tie-breaking, cursor pagination, invalid sort combinations, and cursor mismatches. GitOrigin-RevId: 6165e2b9976b0b45cfa16bcd42978b67811f6df5
2026-10-19 16:17:49 +00:00 · 2026-08-27 23:43:46 +00:00
parent 2d929eb7c3
commit f6726e8986
22 changed files with 796 additions and 122 deletions
@@ -2619,6 +2619,13 @@
      ],
      "type": "object"
    },
+    "ProjectSortKey": {
+      "enum": [
+        "position",
+        "recencyAt"
+      ],
+      "type": "string"
+    },
    "RealtimeConversationVersion": {
      "enum": [
        "v1",
@@ -16945,6 +16945,14 @@
            "format": "int64",
            "type": "integer"
          },
+          "recencyAt": {
+            "description": "Newest non-archived member thread's recency, in Unix seconds; null when none exist.",
+            "format": "int64",
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
          "roots": {
            "items": {
              "$ref": "#/definitions/v2/ProjectRoot"
@@ -17003,6 +17011,13 @@
        ],
        "type": "object"
      },
+      "ProjectSortKey": {
+        "enum": [
+          "position",
+          "recencyAt"
+        ],
+        "type": "string"
+      },
      "QueuedSubmission": {
        "properties": {
          "clientUserMessageId": {
@@ -13078,6 +13078,14 @@
          "format": "int64",
          "type": "integer"
        },
+        "recencyAt": {
+          "description": "Newest non-archived member thread's recency, in Unix seconds; null when none exist.",
+          "format": "int64",
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
        "roots": {
          "items": {
            "$ref": "#/definitions/ProjectRoot"
@@ -13136,6 +13144,13 @@
      ],
      "type": "object"
    },
+    "ProjectSortKey": {
+      "enum": [
+        "position",
+        "recencyAt"
+      ],
+      "type": "string"
+    },
    "QueuedSubmission": {
      "properties": {
        "clientUserMessageId": {
@@ -3,4 +3,8 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { ProjectRoot } from "./ProjectRoot";

-export type Project = { id: string, name: string, roots: Array<ProjectRoot>, metadata: { [key in string]?: string }, position: number, createdAt: number, updatedAt: number, };
+export type Project = { id: string, name: string, roots: Array<ProjectRoot>, metadata: { [key in string]?: string }, position: number, createdAt: number, updatedAt: number,
+/**
+ * Newest non-archived member thread's recency, in Unix seconds; null when none exist.
+ */
+recencyAt: number | null, };
@@ -0,0 +1,5 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+export type ProjectSortKey = "position" | "recencyAt";
@@ -388,6 +388,7 @@ export type { Project } from "./Project";
 export type { ProjectChangeType } from "./ProjectChangeType";
 export type { ProjectChangedNotification } from "./ProjectChangedNotification";
 export type { ProjectRoot } from "./ProjectRoot";
+export type { ProjectSortKey } from "./ProjectSortKey";
 export type { QueuedSubmission } from "./QueuedSubmission";
 export type { RateLimitReachedType } from "./RateLimitReachedType";
 export type { RateLimitResetCredit } from "./RateLimitResetCredit";
@@ -7,6 +7,8 @@ use codex_utils_absolute_path::AbsolutePathBuf;
 use serde::Deserialize;
 use serde::Serialize;

+use super::SortDirection;
+
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
@@ -28,6 +30,17 @@ pub struct Project {
    pub created_at: i64,
    #[ts(type = "number")]
    pub updated_at: i64,
+    /// Newest non-archived member thread's recency, in Unix seconds; null when none exist.
+    #[ts(type = "number | null")]
+    pub recency_at: Option<i64>,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq, JsonSchema, TS)]
+#[serde(rename_all = "camelCase")]
+#[ts(rename_all = "camelCase", export_to = "v2/")]
+pub enum ProjectSortKey {
+    Position,
+    RecencyAt,
 }

 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS, ExperimentalApi)]
@@ -38,6 +51,12 @@ pub struct ProjectListParams {
    pub cursor: Option<String>,
    #[ts(optional = nullable)]
    pub limit: Option<u32>,
+    /// Defaults to position. Recency sorting always places empty projects last.
+    #[ts(optional = nullable)]
+    pub sort_key: Option<ProjectSortKey>,
+    /// Requires sortKey. Defaults to asc for position and desc for recencyAt.
+    #[ts(optional = nullable)]
+    pub sort_direction: Option<SortDirection>,
 }

 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, JsonSchema, TS)]
@@ -1500,7 +1500,7 @@ pub enum ThreadSearchSortKey {
    RecencyAt,
 }

-#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, JsonSchema, TS)]
+#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq, JsonSchema, TS)]
 #[serde(rename_all = "snake_case")]
 #[ts(export_to = "v2/")]
 pub enum SortDirection {
@@ -454,6 +454,28 @@ To branch from a stored session, call `thread/fork` with the `thread.id`. This c

 Like `thread/resume`, full-history hydration is deprecated for paginated `thread/fork` and emits `deprecationNotice`. Clients should pass `excludeTurns: true` to return only thread metadata in `thread.turns` and page history with `thread/turns/list` and `thread/items/list`. Metadata-only forks do not replay restored `thread/tokenUsage/updated`. Ephemeral forks of paginated threads require `excludeTurns: true`.

+### Listing projects
+
+`project/list` accepts optional `sortKey` (`position` or `recencyAt`) and
+`sortDirection` (`asc` or `desc`), alongside `limit` and the opaque `cursor`.
+Omitting `sortKey` preserves manual position order. A non-null `sortDirection`
+requires an explicit key; it defaults to `asc` for `position` and `desc` for `recencyAt`.
+
+```json
+{ "sortKey": "recencyAt", "sortDirection": "desc", "limit": 50, "cursor": null }
+```
+
+Every project response includes `recencyAt`: the newest non-archived, explicitly
+assigned thread's recency in Unix seconds, across all sources, or `null` when none
+exist. Like `thread/list`, thread recency starts at creation and advances at turn
+start, not for background output. Removing or archiving members can lower project
+recency. Task activity does not change project `updatedAt` or emit `project/changed`.
+
+Nulls sort last in either direction; project IDs break ties in the same direction.
+Cursor anchors retain millisecond precision. Continue with the same sort options;
+existing position cursors remain supported. Pagination is a live view, so concurrent
+activity can move projects across a cursor.
+
 ### Example: List threads (with pagination & filters)

 `thread/list` lets you render a history UI. Results default to `createdAt` (newest first) descending.
@@ -19,14 +19,18 @@ use codex_app_server_protocol::ProjectMoveResponse;
 use codex_app_server_protocol::ProjectReadParams;
 use codex_app_server_protocol::ProjectReadResponse;
 use codex_app_server_protocol::ProjectRoot;
+use codex_app_server_protocol::ProjectSortKey;
 use codex_app_server_protocol::ProjectUpdateParams;
 use codex_app_server_protocol::ProjectUpdateResponse;
 use codex_app_server_protocol::ServerNotification;
+use codex_app_server_protocol::SortDirection;
 use codex_app_server_protocol::ThreadProjectUpdatedNotification;
 use codex_thread_store::CreateProjectParams as StoreCreateProjectParams;
 use codex_thread_store::ListProjectsParams as StoreListProjectsParams;
 use codex_thread_store::MoveProjectParams as StoreMoveProjectParams;
 use codex_thread_store::ProjectMoveOutcome;
+use codex_thread_store::ProjectSortKey as StoreProjectSortKey;
+use codex_thread_store::SortDirection as StoreSortDirection;
 use codex_thread_store::StoredProject;
 use codex_thread_store::StoredProjectRoot;
 use codex_thread_store::ThreadStore;
@@ -66,10 +70,27 @@ impl ProjectRequestProcessor {
        &self,
        params: ProjectListParams,
    ) -> Result<Option<ClientResponsePayload>, JSONRPCErrorError> {
+        if params.sort_key.is_none() && params.sort_direction.is_some() {
+            return Err(invalid_params("sortDirection requires sortKey"));
+        }
+        let sort_key = match params.sort_key.unwrap_or(ProjectSortKey::Position) {
+            ProjectSortKey::Position => StoreProjectSortKey::Position,
+            ProjectSortKey::RecencyAt => StoreProjectSortKey::RecencyAt,
+        };
+        let sort_direction = match params.sort_direction {
+            Some(SortDirection::Asc) => StoreSortDirection::Asc,
+            Some(SortDirection::Desc) => StoreSortDirection::Desc,
+            None => match sort_key {
+                StoreProjectSortKey::Position => StoreSortDirection::Asc,
+                StoreProjectSortKey::RecencyAt => StoreSortDirection::Desc,
+            },
+        };
        let page = self
            .thread_store
            .list_projects(StoreListProjectsParams {
                cursor: params.cursor,
+                sort_key,
+                sort_direction,
                limit: params
                    .limit
                    .map(|limit| limit as usize)
@@ -359,6 +380,9 @@ fn api_project(project: StoredProject) -> Result<Project, JSONRPCErrorError> {
        position: project.position,
        created_at: project.created_at_ms / 1000,
        updated_at: project.updated_at_ms / 1000,
+        recency_at: project
+            .recency_at_ms
+            .map(|timestamp| timestamp.div_euclid(/*rhs*/ 1000)),
    })
 }

@@ -22,9 +22,13 @@ use codex_app_server_protocol::ProjectMoveResponse;
 use codex_app_server_protocol::ProjectReadParams;
 use codex_app_server_protocol::ProjectReadResponse;
 use codex_app_server_protocol::ProjectRoot;
+use codex_app_server_protocol::ProjectSortKey;
 use codex_app_server_protocol::ProjectUpdateParams;
 use codex_app_server_protocol::ProjectUpdateResponse;
 use codex_app_server_protocol::RequestId;
+use codex_app_server_protocol::SortDirection;
+use codex_app_server_protocol::ThreadArchiveParams;
+use codex_app_server_protocol::ThreadArchiveResponse;
 use codex_app_server_protocol::ThreadForkParams;
 use codex_app_server_protocol::ThreadForkResponse;
 use codex_app_server_protocol::ThreadHistoryMode;
@@ -48,6 +52,155 @@ use pretty_assertions::assert_eq;
 use tempfile::TempDir;
 use uuid::Uuid;

+#[tokio::test]
+async fn projects_list_by_recency_and_preserve_metadata_timestamps() -> Result<()> {
+    let responses = create_mock_responses_server_repeating_assistant("Done").await;
+    let codex_home = TempDir::new()?;
+    MockResponsesConfig::new(&responses.uri())
+        .enable_feature(Feature::Sqlite)
+        .write(codex_home.path())?;
+    let mut server = TestAppServer::builder()
+        .with_codex_home(codex_home.path())
+        .build_initialized()
+        .await?;
+    let mut projects = Vec::new();
+    let mut threads = Vec::new();
+    for name in ["first", "second", "empty"] {
+        let created: ProjectCreateResponse = server
+            .request(|request_id| ClientRequest::ProjectCreate {
+                request_id,
+                params: ProjectCreateParams {
+                    name: name.to_string(),
+                    roots: Vec::new(),
+                    metadata: None,
+                    idempotency_key: name.to_string(),
+                },
+            })
+            .await?;
+        assert_eq!(created.project.recency_at, None);
+        let mut expected = created.project;
+        if name != "empty" {
+            let started = server
+                .start_thread(ThreadStartParams {
+                    project_id: Some(expected.id.clone()),
+                    ..Default::default()
+                })
+                .await?;
+            server
+                .start_turn_and_wait_for_completion(TurnStartParams {
+                    thread_id: started.thread.id.clone(),
+                    input: vec![UserInput::Text {
+                        text: "Hello".to_string(),
+                        text_elements: Vec::new(),
+                    }],
+                    ..Default::default()
+                })
+                .await?;
+            let listed: ThreadListResponse = server
+                .request(|request_id| ClientRequest::ThreadList {
+                    request_id,
+                    params: ThreadListParams {
+                        cursor: None,
+                        limit: Some(10),
+                        sort_key: None,
+                        sort_direction: None,
+                        model_providers: None,
+                        source_kinds: None,
+                        archived: None,
+                        section_id: None,
+                        project_id: Some(Some(expected.id.clone())),
+                        cwd: None,
+                        use_state_db_only: true,
+                        search_term: None,
+                        parent_thread_id: None,
+                        ancestor_thread_id: None,
+                    },
+                })
+                .await?;
+            expected.recency_at = listed.data[0].recency_at;
+            assert!(expected.recency_at.is_some());
+            threads.push(started.thread.id);
+        }
+        let read: ProjectReadResponse = server
+            .request(|request_id| ClientRequest::ProjectRead {
+                request_id,
+                params: ProjectReadParams {
+                    project_id: expected.id.clone(),
+                },
+            })
+            .await?;
+        assert_eq!(read.project, expected);
+        projects.push(expected);
+    }
+    for (sort_key, sort_direction, order) in [
+        (None, None, [0, 1, 2]),
+        (Some(ProjectSortKey::RecencyAt), None, [1, 0, 2]),
+        (
+            Some(ProjectSortKey::RecencyAt),
+            Some(SortDirection::Asc),
+            [0, 1, 2],
+        ),
+    ] {
+        let mut cursor = None;
+        for index in order {
+            let page: ProjectListResponse = server
+                .request(|request_id| ClientRequest::ProjectList {
+                    request_id,
+                    params: ProjectListParams {
+                        cursor: cursor.clone(),
+                        limit: Some(1),
+                        sort_key,
+                        sort_direction,
+                    },
+                })
+                .await?;
+            assert_eq!(page.data, vec![projects[index].clone()]);
+            cursor = page.next_cursor;
+        }
+        assert_eq!(cursor, None);
+    }
+    let _: ThreadArchiveResponse = server
+        .request(|request_id| ClientRequest::ThreadArchive {
+            request_id,
+            params: ThreadArchiveParams {
+                thread_id: threads[1].clone(),
+            },
+        })
+        .await?;
+    projects[1].recency_at = None;
+    let archived: ProjectReadResponse = server
+        .request(|request_id| ClientRequest::ProjectRead {
+            request_id,
+            params: ProjectReadParams {
+                project_id: projects[1].id.clone(),
+            },
+        })
+        .await?;
+    assert_eq!(archived.project, projects[1]);
+
+    for params in [
+        ProjectListParams {
+            cursor: None,
+            limit: None,
+            sort_key: None,
+            sort_direction: Some(SortDirection::Desc),
+        },
+        ProjectListParams {
+            cursor: Some(format!("0|{}", projects[0].id)),
+            limit: None,
+            sort_key: Some(ProjectSortKey::RecencyAt),
+            sort_direction: None,
+        },
+    ] {
+        let id = server.send_project_list_request(params).await?;
+        let error = server
+            .read_stream_until_error_message(RequestId::Integer(id))
+            .await?;
+        assert_eq!(error.error.code, -32602);
+    }
+    Ok(())
+}
+
 #[tokio::test]
 async fn projects_persist_and_assign_threads() -> Result<()> {
    let responses = create_mock_responses_server_repeating_assistant("Done").await;
@@ -316,6 +469,10 @@ async fn projects_persist_and_assign_threads() -> Result<()> {
        })
        .await?;
    assert_eq!(updated.project.name, "Renamed");
+    assert_eq!(
+        updated.project.recency_at,
+        reassigned_list.data[0].recency_at
+    );
    assert!(updated.project.roots.is_empty());
    assert!(updated.project.metadata.is_empty());
    let updated_notification: ProjectChangedNotification =
@@ -351,6 +508,8 @@ async fn projects_persist_and_assign_threads() -> Result<()> {
        .request(|request_id| ClientRequest::ProjectList {
            request_id,
            params: ProjectListParams {
+                sort_key: None,
+                sort_direction: None,
                cursor: None,
                limit: Some(10),
            },
@@ -385,6 +544,8 @@ async fn projects_persist_and_assign_threads() -> Result<()> {
        .request(|request_id| ClientRequest::ProjectList {
            request_id,
            params: ProjectListParams {
+                sort_key: None,
+                sort_direction: None,
                cursor: None,
                limit: Some(10),
            },
@@ -436,6 +597,8 @@ async fn projects_persist_and_assign_threads() -> Result<()> {
        .request(|request_id| ClientRequest::ProjectList {
            request_id,
            params: ProjectListParams {
+                sort_key: None,
+                sort_direction: None,
                cursor: None,
                limit: Some(10),
            },
@@ -641,6 +804,8 @@ async fn project_import_is_atomic_and_notifies_after_commit_in_order() -> Result
        .request(|request_id| ClientRequest::ProjectList {
            request_id,
            params: ProjectListParams {
+                sort_key: None,
+                sort_direction: None,
                cursor: None,
                limit: Some(10),
            },
@@ -665,6 +830,8 @@ async fn project_import_is_atomic_and_notifies_after_commit_in_order() -> Result
        .request(|request_id| ClientRequest::ProjectList {
            request_id,
            params: ProjectListParams {
+                sort_key: None,
+                sort_direction: None,
                cursor: None,
                limit: Some(10),
            },
@@ -695,6 +862,8 @@ async fn project_import_is_atomic_and_notifies_after_commit_in_order() -> Result
        .request(|request_id| ClientRequest::ProjectList {
            request_id,
            params: ProjectListParams {
+                sort_key: None,
+                sort_direction: None,
                cursor: None,
                limit: Some(10),
            },
@@ -742,6 +911,8 @@ async fn projects_validate_filters_cursors_and_sqlite_less_assignment() -> Resul
    }
    let cursor_id = server
        .send_project_list_request(ProjectListParams {
+            sort_key: None,
+            sort_direction: None,
            cursor: Some("123|not-a-uuid|extra".to_string()),
            limit: Some(10),
        })
@@ -0,0 +1,3 @@
+CREATE INDEX idx_threads_project_recency
+    ON threads(project_id, recency_at_ms DESC)
+    WHERE archived = 0 AND project_id IS NOT NULL;
@@ -26,6 +26,7 @@ pub use model::LogRow;
 pub use model::Phase2JobClaimOutcome;
 pub use model::Project;
 pub use model::ProjectRoot;
+pub use model::ProjectSortKey;
 pub use model::ProjectsPage;
 pub use model::QueuedUserSubmissionRecord;
 pub use model::RolloutMigrationCursor;
@@ -23,6 +23,7 @@ pub use memories::Stage1StartupClaimParams;
 pub use project::CreatedProject;
 pub use project::Project;
 pub use project::ProjectRoot;
+pub use project::ProjectSortKey;
 pub use project::ProjectsPage;
 pub use queued_item::QueuedUserSubmissionRecord;
 pub use rollout_migration_state::RolloutMigrationCursor;
@@ -17,6 +17,13 @@ pub struct Project {
    pub position: i64,
    pub created_at_ms: i64,
    pub updated_at_ms: i64,
+    pub recency_at_ms: Option<i64>,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ProjectSortKey {
+    Position,
+    RecencyAt,
 }

 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -1,13 +1,25 @@
+//! Persists projects and assignments, and lists projects with computed member recency.
+//! Listing pagination precedes root hydration; cursor anchors preserve milliseconds and nulls.
+
 use std::collections::BTreeMap;

+use sqlx::QueryBuilder;
 use sqlx::Row;
+use sqlx::Sqlite;
 use uuid::Uuid;

 use super::StateRuntime;
 use crate::CreatedProject;
 use crate::Project;
 use crate::ProjectRoot;
+use crate::ProjectSortKey;
 use crate::ProjectsPage;
+use crate::SortDirection;
+
+const PROJECT_SELECT: &str = "SELECT projects.*,
+    (SELECT MAX(recency_at_ms) FROM threads
+     WHERE project_id = projects.id AND archived = 0) AS recency_at_ms
+    FROM projects";

 impl StateRuntime {
    pub async fn set_thread_project(
@@ -50,43 +62,27 @@ impl StateRuntime {
        &self,
        cursor: Option<&str>,
        limit: usize,
+        sort_key: ProjectSortKey,
+        sort_direction: SortDirection,
    ) -> anyhow::Result<ProjectsPage> {
-        let anchor = cursor.map(parse_project_cursor).transpose()?;
-        let mut tx = self.pool.begin().await?;
-        let rows = if let Some((position, id)) = anchor {
-            sqlx::query(
-                "SELECT id, name, metadata, position, created_at_ms, updated_at_ms FROM projects WHERE position > ? OR (position = ? AND id > ?) ORDER BY position ASC, id ASC LIMIT ?",
-            )
-            .bind(position)
-            .bind(position)
-            .bind(id)
-            .bind((limit + 1) as i64)
-            .fetch_all(&mut *tx)
-            .await?
-        } else {
-            sqlx::query(
-                "SELECT id, name, metadata, position, created_at_ms, updated_at_ms FROM projects ORDER BY position ASC, id ASC LIMIT ?",
-            )
-            .bind((limit + 1) as i64)
-            .fetch_all(&mut *tx)
-            .await?
-        };
-        let project_ids = rows
-            .iter()
-            .map(|row| row.try_get("id"))
-            .collect::<Result<Vec<String>, _>>()?;
-        let mut roots_by_project_id = project_roots_by_id_in_tx(&mut tx, &project_ids).await?;
-        let mut projects = Vec::with_capacity(rows.len());
+        let mut query = project_list_query(cursor, limit, sort_key, sort_direction)?;
+        let rows = query.build().fetch_all(self.pool.as_ref()).await?;
+        let mut projects: Vec<Project> = Vec::new();
        for row in rows {
-            let project_id: String = row.try_get("id")?;
-            let roots = roots_by_project_id.remove(&project_id).unwrap_or_default();
-            projects.push(project_from_row(&row, roots)?);
+            let id: String = row.try_get("id")?;
+            if projects.last().is_none_or(|project| project.id != id) {
+                projects.push(project_from_row(&row, Vec::new())?);
+            }
+            if let Some(path) = row.try_get::<Option<String>, _>("root_path")? {
+                let project = projects
+                    .last_mut()
+                    .ok_or_else(|| anyhow::anyhow!("project missing for root"))?;
+                project.roots.push(ProjectRoot { path });
+            }
        }
        let next_cursor = (projects.len() > limit)
-            .then(|| project_cursor(&projects[limit - 1]))
-            .flatten();
+            .then(|| project_cursor(&projects[limit - 1], sort_key, sort_direction));
        projects.truncate(limit);
-        tx.commit().await?;
        Ok(ProjectsPage {
            projects,
            next_cursor,
@@ -95,12 +91,12 @@ impl StateRuntime {

    pub async fn get_project(&self, id: &str) -> anyhow::Result<Option<Project>> {
        let mut tx = self.pool.begin().await?;
-        let row = sqlx::query(
-            "SELECT id, name, metadata, position, created_at_ms, updated_at_ms FROM projects WHERE id = ?",
-        )
-        .bind(id)
-        .fetch_optional(&mut *tx)
-        .await?;
+        let row = QueryBuilder::<Sqlite>::new(PROJECT_SELECT)
+            .push(" WHERE id = ")
+            .push_bind(id)
+            .build()
+            .fetch_optional(&mut *tx)
+            .await?;
        let project = match row {
            Some(row) => Some(project_from_row_in_tx(&mut tx, &row).await?),
            None => None,
@@ -124,12 +120,12 @@ impl StateRuntime {
            tx.commit().await?;
            return Ok(None);
        };
-        let row = sqlx::query(
-            "SELECT id, name, metadata, position, created_at_ms, updated_at_ms FROM projects WHERE id = ?",
-        )
-        .bind(&project_id)
-        .fetch_optional(&mut *tx)
-        .await?;
+        let row = QueryBuilder::<Sqlite>::new(PROJECT_SELECT)
+            .push(" WHERE id = ")
+            .push_bind(&project_id)
+            .build()
+            .fetch_optional(&mut *tx)
+            .await?;
        let Some(row) = row else {
            tx.rollback().await?;
            anyhow::bail!("idempotency key refers to deleted project: {idempotency_key}");
@@ -155,12 +151,12 @@ impl StateRuntime {
        .fetch_optional(&mut *tx)
        .await?;
        if let Some(existing_project_id) = existing_project_id {
-            let row = sqlx::query(
-                "SELECT id, name, metadata, position, created_at_ms, updated_at_ms FROM projects WHERE id = ?",
-            )
-            .bind(&existing_project_id)
-            .fetch_optional(&mut *tx)
-            .await?;
+            let row = QueryBuilder::<Sqlite>::new(PROJECT_SELECT)
+                .push(" WHERE id = ")
+                .push_bind(&existing_project_id)
+                .build()
+                .fetch_optional(&mut *tx)
+                .await?;
            let Some(row) = row else {
                tx.rollback().await?;
                anyhow::bail!("idempotency key refers to deleted project: {idempotency_key}");
@@ -217,17 +213,16 @@ impl StateRuntime {
        .bind(now)
        .execute(&mut *tx)
        .await?;
+        let row = QueryBuilder::<Sqlite>::new(PROJECT_SELECT)
+            .push(" WHERE id = ")
+            .push_bind(&id)
+            .build()
+            .fetch_one(&mut *tx)
+            .await?;
+        let project = project_from_row(&row, roots)?;
        tx.commit().await?;
        Ok(CreatedProject {
-            project: Project {
-                id,
-                name,
-                roots,
-                metadata,
-                position,
-                created_at_ms: now,
-                updated_at_ms: now,
-            },
+            project,
            created: true,
        })
    }
@@ -240,12 +235,12 @@ impl StateRuntime {
        metadata: Option<BTreeMap<String, String>>,
    ) -> anyhow::Result<Option<(Project, bool)>> {
        let mut tx = self.pool.begin_with("BEGIN IMMEDIATE").await?;
-        let row = sqlx::query(
-            "SELECT id, name, metadata, position, created_at_ms, updated_at_ms FROM projects WHERE id = ?",
-        )
-        .bind(id)
-        .fetch_optional(&mut *tx)
-        .await?;
+        let row = QueryBuilder::<Sqlite>::new(PROJECT_SELECT)
+            .push(" WHERE id = ")
+            .push_bind(id)
+            .build()
+            .fetch_optional(&mut *tx)
+            .await?;
        let Some(row) = row else {
            tx.rollback().await?;
            return Ok(None);
@@ -282,6 +277,7 @@ impl StateRuntime {
                position: current.position,
                created_at_ms: current.created_at_ms,
                updated_at_ms: now,
+                recency_at_ms: current.recency_at_ms,
            },
            true,
        )))
@@ -410,37 +406,10 @@ fn project_from_row(
        position: row.try_get("position")?,
        created_at_ms: row.try_get("created_at_ms")?,
        updated_at_ms: row.try_get("updated_at_ms")?,
+        recency_at_ms: row.try_get("recency_at_ms")?,
    })
 }

-async fn project_roots_by_id_in_tx(
-    tx: &mut sqlx::Transaction<'_, sqlx::Sqlite>,
-    project_ids: &[String],
-) -> anyhow::Result<BTreeMap<String, Vec<ProjectRoot>>> {
-    if project_ids.is_empty() {
-        return Ok(BTreeMap::new());
-    }
-    let mut builder = sqlx::QueryBuilder::<sqlx::Sqlite>::new(
-        "SELECT project_id, path FROM project_roots WHERE project_id IN (",
-    );
-    let mut separated = builder.separated(", ");
-    for project_id in project_ids {
-        separated.push_bind(project_id);
-    }
-    builder.push(") ORDER BY project_id ASC, position ASC");
-    let rows = builder.build().fetch_all(&mut **tx).await?;
-    let mut roots_by_project_id = BTreeMap::<String, Vec<ProjectRoot>>::new();
-    for row in rows {
-        roots_by_project_id
-            .entry(row.try_get("project_id")?)
-            .or_default()
-            .push(ProjectRoot {
-                path: row.try_get("path")?,
-            });
-    }
-    Ok(roots_by_project_id)
-}
-
 async fn replace_roots(
    tx: &mut sqlx::Transaction<'_, sqlx::Sqlite>,
    project_id: &str,
@@ -461,30 +430,142 @@ async fn replace_roots(
    Ok(())
 }

-fn project_cursor(project: &Project) -> Option<String> {
-    Some(format!("{}|{}", project.position, project.id))
-}
-
-fn parse_project_cursor(cursor: &str) -> anyhow::Result<(i64, String)> {
-    let mut parts = cursor.split('|');
-    let position_component = parts.next().ok_or_else(|| invalid_project_cursor(cursor))?;
-    let position: i64 = position_component
-        .parse()
-        .map_err(|_| invalid_project_cursor(cursor))?;
-    let id = parts.next().ok_or_else(|| invalid_project_cursor(cursor))?;
-    let uuid = Uuid::parse_str(id).map_err(|_| invalid_project_cursor(cursor))?;
-    if parts.next().is_some()
-        || position < 0
-        || position.to_string() != position_component
-        || uuid.to_string() != id
-    {
-        return Err(invalid_project_cursor(cursor));
+fn project_list_query(
+    cursor: Option<&str>,
+    limit: usize,
+    sort_key: ProjectSortKey,
+    sort_direction: SortDirection,
+) -> anyhow::Result<QueryBuilder<Sqlite>> {
+    anyhow::ensure!(limit > 0, "project limit must be positive");
+    let query_limit = i64::try_from(limit)?
+        .checked_add(/*rhs*/ 1)
+        .ok_or_else(|| anyhow::anyhow!("project limit overflow"))?;
+    let column = match sort_key {
+        ProjectSortKey::Position => "p.position",
+        ProjectSortKey::RecencyAt => "p.recency_at_ms",
+    };
+    let operator = match sort_direction {
+        SortDirection::Asc => ">",
+        SortDirection::Desc => "<",
+    };
+    let mut query = QueryBuilder::new(format!(
+        "WITH project_activity AS ({PROJECT_SELECT}), page AS (SELECT * FROM project_activity p"
+    ));
+    if let Some(cursor) = cursor {
+        let (value, id) = parse_project_cursor(cursor, sort_key, sort_direction)?;
+        if let Some(value) = value {
+            query
+                .push(format!(" WHERE ({column} {operator} "))
+                .push_bind(value);
+            query.push(format!(" OR ({column} = ")).push_bind(value);
+            query
+                .push(format!(" AND p.id {operator} "))
+                .push_bind(id)
+                .push(")");
+            if sort_key == ProjectSortKey::RecencyAt {
+                query.push(" OR p.recency_at_ms IS NULL");
+            }
+            query.push(")");
+        } else {
+            query
+                .push(format!(
+                    " WHERE p.recency_at_ms IS NULL AND p.id {operator} "
+                ))
+                .push_bind(id);
+        }
    }
-    Ok((position, id.to_string()))
+    push_project_order(&mut query, sort_key, sort_direction);
+    query.push(" LIMIT ").push_bind(query_limit);
+    query.push(
+        ") SELECT p.*, roots.path AS root_path FROM page p \
+        LEFT JOIN project_roots roots ON roots.project_id = p.id",
+    );
+    push_project_order(&mut query, sort_key, sort_direction);
+    query.push(", roots.position ASC");
+    Ok(query)
 }

-fn invalid_project_cursor(cursor: &str) -> anyhow::Error {
-    anyhow::anyhow!("invalid project cursor: {cursor}")
+fn push_project_order(
+    query: &mut QueryBuilder<Sqlite>,
+    sort_key: ProjectSortKey,
+    sort_direction: SortDirection,
+) {
+    let direction = match sort_direction {
+        SortDirection::Asc => "ASC",
+        SortDirection::Desc => "DESC",
+    };
+    query.push(" ORDER BY ");
+    match sort_key {
+        ProjectSortKey::Position => query.push("p.position"),
+        ProjectSortKey::RecencyAt => query.push("p.recency_at_ms IS NULL ASC, p.recency_at_ms"),
+    };
+    query.push(format!(" {direction}, p.id {direction}"));
+}
+
+fn project_cursor(project: &Project, sort_key: ProjectSortKey, direction: SortDirection) -> String {
+    if sort_key == ProjectSortKey::Position && direction == SortDirection::Asc {
+        // Retain the existing format for clients reconnecting to an older server.
+        return format!("{}|{}", project.position, project.id);
+    }
+    let (key, value) = match sort_key {
+        ProjectSortKey::Position => ("position", project.position.to_string()),
+        ProjectSortKey::RecencyAt => (
+            "recencyAt",
+            project
+                .recency_at_ms
+                .map_or_else(|| "null".to_string(), |value| value.to_string()),
+        ),
+    };
+    let direction = match direction {
+        SortDirection::Asc => "asc",
+        SortDirection::Desc => "desc",
+    };
+    format!("v1|{key}|{direction}|{value}|{}", project.id)
+}
+
+fn parse_project_cursor(
+    cursor: &str,
+    sort_key: ProjectSortKey,
+    direction: SortDirection,
+) -> anyhow::Result<(Option<i64>, String)> {
+    let invalid = || anyhow::anyhow!("invalid project cursor: malformed or mismatched sort anchor");
+    if cursor.len() > 128 {
+        return Err(invalid());
+    }
+    let parts: Vec<_> = cursor.split('|').collect();
+    let key = match sort_key {
+        ProjectSortKey::Position => "position",
+        ProjectSortKey::RecencyAt => "recencyAt",
+    };
+    let order = match direction {
+        SortDirection::Asc => "asc",
+        SortDirection::Desc => "desc",
+    };
+    let (value, id) = match parts.as_slice() {
+        [value, id] if sort_key == ProjectSortKey::Position && direction == SortDirection::Asc => {
+            (*value, *id)
+        }
+        ["v1", cursor_key, cursor_order, value, id]
+            if *cursor_key == key && *cursor_order == order =>
+        {
+            (*value, *id)
+        }
+        _ => return Err(invalid()),
+    };
+    let value = if value == "null" && sort_key == ProjectSortKey::RecencyAt {
+        None
+    } else {
+        let parsed: i64 = value.parse().map_err(|_| invalid())?;
+        if parsed.to_string() != value || sort_key == ProjectSortKey::Position && parsed < 0 {
+            return Err(invalid());
+        }
+        Some(parsed)
+    };
+    let uuid = Uuid::parse_str(id).map_err(|_| invalid())?;
+    if uuid.to_string() != id {
+        return Err(invalid());
+    }
+    Ok((value, id.to_string()))
 }

 #[cfg(test)]
@@ -6,6 +6,8 @@ use codex_utils_absolute_path::test_support::PathExt;
 use pretty_assertions::assert_eq;

 use super::*;
+use crate::ProjectSortKey;
+use crate::SortDirection;
 use crate::ThreadMetadataBuilder;
 use crate::runtime::test_support::unique_temp_dir;

@@ -63,6 +65,13 @@ async fn project_lifecycle_preserves_order_and_clears_assignments() -> anyhow::R
        .unwrap();
    assert!(!unchanged.1);
    assert_eq!(unchanged.0.updated_at_ms, project.updated_at_ms);
+    runtime
+        .touch_thread_updated_at(thread_id, chrono::Utc::now())
+        .await?;
+    assert_eq!(
+        runtime.get_project(&project.id).await?,
+        Some(project.clone())
+    );

    runtime
        .mark_archived(
@@ -71,6 +80,23 @@ async fn project_lifecycle_preserves_order_and_clears_assignments() -> anyhow::R
            chrono::Utc::now(),
        )
        .await?;
+    assert_eq!(
+        runtime.get_project(&project.id).await?,
+        Some(Project {
+            recency_at_ms: None,
+            ..project.clone()
+        })
+    );
+    runtime
+        .mark_unarchived(thread_id, &metadata.rollout_path)
+        .await?;
+    assert_eq!(
+        runtime.get_project(&project.id).await?,
+        Some(project.clone())
+    );
+    runtime
+        .mark_archived(thread_id, &metadata.rollout_path, chrono::Utc::now())
+        .await?;
    let active_thread_id = ThreadId::default();
    let active_metadata = ThreadMetadataBuilder::new(
        active_thread_id,
@@ -84,6 +110,46 @@ async fn project_lifecycle_preserves_order_and_clears_assignments() -> anyhow::R
        .set_thread_project(&active_thread_id.to_string(), Some(&project.id))
        .await?
        .expect("active thread exists");
+    let active_recency = runtime
+        .get_thread(active_thread_id)
+        .await?
+        .unwrap()
+        .recency_at
+        .timestamp_millis();
+    runtime
+        .mark_unarchived(thread_id, &metadata.rollout_path)
+        .await?;
+    let active_project = Project {
+        recency_at_ms: Some(active_recency),
+        ..project.clone()
+    };
+    assert_eq!(
+        runtime.get_project(&project.id).await?,
+        Some(active_project)
+    );
+    runtime
+        .set_thread_project(&active_thread_id.to_string(), /*project_id*/ None)
+        .await?;
+    assert_eq!(
+        runtime.get_project(&project.id).await?,
+        Some(project.clone())
+    );
+    runtime
+        .set_thread_project(&active_thread_id.to_string(), Some(&project.id))
+        .await?;
+    runtime.delete_thread(active_thread_id).await?;
+    assert_eq!(
+        runtime.get_project(&project.id).await?,
+        Some(project.clone())
+    );
+    // Restore the active fixture for the project-deletion assertions below.
+    runtime.upsert_thread(&active_metadata).await?;
+    runtime
+        .set_thread_project(&active_thread_id.to_string(), Some(&project.id))
+        .await?;
+    runtime
+        .mark_archived(thread_id, &metadata.rollout_path, chrono::Utc::now())
+        .await?;
    let (affected_active_thread_ids, affected_archived_thread_ids) =
        runtime.delete_project(&project.id).await?.unwrap();
    assert_eq!(
@@ -192,7 +258,12 @@ async fn project_import_rejects_unknown_thread_without_partial_project() -> anyh
    assert!(error.to_string().contains("thread not found"));
    assert!(
        runtime
-            .list_projects(/*cursor*/ None, /*limit*/ 10)
+            .list_projects(
+                /*cursor*/ None,
+                /*limit*/ 10,
+                ProjectSortKey::Position,
+                SortDirection::Asc
+            )
            .await?
            .projects
            .is_empty()
@@ -276,7 +347,12 @@ async fn project_list_rejects_malformed_cursors() -> anyhow::Result<()> {
        "not-a-position|00000000-0000-0000-0000-000000000000",
    ] {
        let error = runtime
-            .list_projects(Some(cursor), /*limit*/ 10)
+            .list_projects(
+                Some(cursor),
+                /*limit*/ 10,
+                ProjectSortKey::Position,
+                SortDirection::Asc,
+            )
            .await
            .expect_err("malformed cursor should fail");
        assert!(error.to_string().starts_with("invalid project cursor:"));
@@ -298,16 +374,215 @@ async fn project_list_cursor_round_trips_across_pages() -> anyhow::Result<()> {
            .await?;
    }

-    let first = runtime.list_projects(/*cursor*/ None, /*limit*/ 1).await?;
+    let first = runtime
+        .list_projects(
+            /*cursor*/ None,
+            /*limit*/ 1,
+            ProjectSortKey::Position,
+            SortDirection::Asc,
+        )
+        .await?;
    assert_eq!(first.projects.len(), 1);
    let cursor = first.next_cursor.expect("next cursor");
-    let second = runtime.list_projects(Some(&cursor), /*limit*/ 1).await?;
+    let second = runtime
+        .list_projects(
+            Some(&cursor),
+            /*limit*/ 1,
+            ProjectSortKey::Position,
+            SortDirection::Asc,
+        )
+        .await?;
    assert_eq!(second.projects.len(), 1);
    assert_ne!(first.projects[0].id, second.projects[0].id);
    assert_eq!(second.next_cursor, None);
    Ok(())
 }

+#[tokio::test]
+async fn project_list_orders_and_pages_recency_with_roots_and_nulls() -> anyhow::Result<()> {
+    let home = unique_temp_dir();
+    let runtime = StateRuntime::init(
+        crate::SqliteConfig::new_for_testing(home.as_path().abs()),
+        "test-provider".to_string(),
+    )
+    .await?;
+    let mut projects = Vec::new();
+    for (name, recency_at_ms, archived) in [
+        ("older", Some(1_700_000_000_001), false),
+        ("tie-a", Some(1_700_000_000_002), false),
+        ("tie-b", Some(1_700_000_000_002), false),
+        ("empty", None, false),
+        ("archived", Some(1_700_000_010_000), true),
+    ] {
+        let mut threads = Vec::new();
+        if let Some(timestamp) = recency_at_ms {
+            for timestamp in [timestamp - 1, timestamp] {
+                let id = ThreadId::default();
+                let mut metadata = ThreadMetadataBuilder::new(
+                    id,
+                    home.join(format!("{id}.jsonl")),
+                    chrono::DateTime::from_timestamp_millis(timestamp).unwrap(),
+                    SessionSource::Exec,
+                )
+                .build("test-provider");
+                metadata.archived_at = archived.then(chrono::Utc::now);
+                runtime.upsert_thread(&metadata).await?;
+                // Force exact ties despite the monotonic timestamp allocator.
+                sqlx::query("UPDATE threads SET recency_at_ms = ?, recency_at = ? WHERE id = ?")
+                    .bind(timestamp)
+                    .bind(timestamp / 1000)
+                    .bind(id.to_string())
+                    .execute(runtime.pool.as_ref())
+                    .await?;
+                threads.push(id.to_string());
+            }
+        }
+        let project = runtime
+            .create_project(
+                name.to_string(),
+                vec![
+                    ProjectRoot {
+                        path: "/tmp/z".to_string(),
+                    },
+                    ProjectRoot {
+                        path: "/tmp/a".to_string(),
+                    },
+                ],
+                BTreeMap::new(),
+                &threads,
+                name,
+            )
+            .await?
+            .project;
+        let expected = Project {
+            recency_at_ms: recency_at_ms.filter(|_| !archived),
+            ..project.clone()
+        };
+        assert_eq!(project, expected);
+        assert_eq!(
+            runtime.get_project(&project.id).await?,
+            Some(expected.clone())
+        );
+        projects.push(expected);
+    }
+    let mut ties = projects[1..3].to_vec();
+    ties.sort_by(|a, b| a.id.cmp(&b.id));
+    let mut empty = projects[3..].to_vec();
+    empty.sort_by(|a, b| a.id.cmp(&b.id));
+    let ascending = [vec![projects[0].clone()], ties.clone(), empty.clone()].concat();
+    ties.reverse();
+    empty.reverse();
+    let descending = [ties, vec![projects[0].clone()], empty].concat();
+    for (key, direction, expected) in [
+        (
+            ProjectSortKey::Position,
+            SortDirection::Asc,
+            projects.clone(),
+        ),
+        (
+            ProjectSortKey::Position,
+            SortDirection::Desc,
+            projects.into_iter().rev().collect(),
+        ),
+        (ProjectSortKey::RecencyAt, SortDirection::Asc, ascending),
+        (
+            ProjectSortKey::RecencyAt,
+            SortDirection::Desc,
+            descending.clone(),
+        ),
+    ] {
+        for limit in [1, 2, 3, 10] {
+            let mut cursor = None;
+            let mut actual = Vec::new();
+            loop {
+                let page = runtime
+                    .list_projects(cursor.as_deref(), limit, key, direction)
+                    .await?;
+                actual.extend(page.projects);
+                assert!(
+                    actual.len() <= expected.len(),
+                    "pagination repeated a project"
+                );
+                cursor = page.next_cursor;
+                if cursor.is_none() {
+                    break;
+                }
+            }
+            assert_eq!(actual, expected);
+        }
+    }
+    let first = runtime
+        .list_projects(
+            /*cursor*/ None,
+            /*limit*/ 1,
+            ProjectSortKey::RecencyAt,
+            SortDirection::Desc,
+        )
+        .await?;
+    runtime.delete_project(&first.projects[0].id).await?;
+    let rest = runtime
+        .list_projects(
+            first.next_cursor.as_deref(),
+            /*limit*/ 10,
+            ProjectSortKey::RecencyAt,
+            SortDirection::Desc,
+        )
+        .await?;
+    assert_eq!(
+        rest,
+        ProjectsPage {
+            projects: descending[1..].to_vec(),
+            next_cursor: None
+        }
+    );
+
+    let query = project_list_query(
+        /*cursor*/ None,
+        /*limit*/ 50,
+        ProjectSortKey::RecencyAt,
+        SortDirection::Desc,
+    )?;
+    let plan = QueryBuilder::<Sqlite>::new("EXPLAIN QUERY PLAN ")
+        .push(query.sql().as_str())
+        .build()
+        .bind(/*value*/ 51_i64)
+        .fetch_all(runtime.pool.as_ref())
+        .await?;
+    let details = plan
+        .iter()
+        .map(|row| row.get::<String, _>("detail"))
+        .collect::<Vec<_>>();
+    assert!(
+        details
+            .iter()
+            .any(|detail| detail.contains("USING COVERING INDEX idx_threads_project_recency")),
+        "{details:?}"
+    );
+    Ok(())
+}
+
+#[test]
+fn project_list_rejects_cursor_sort_mismatches() {
+    for cursor in [
+        "1|00000000-0000-0000-0000-000000000000",
+        "v1|position|desc|1|00000000-0000-0000-0000-000000000000",
+        "v1|recencyAt|asc|1|00000000-0000-0000-0000-000000000000",
+        "v2|recencyAt|desc|1|00000000-0000-0000-0000-000000000000",
+        "v1|recencyAt|desc|01|00000000-0000-0000-0000-000000000000",
+        "v1|recencyAt|desc|null|not-a-uuid",
+    ] {
+        assert!(
+            project_list_query(
+                Some(cursor),
+                /*limit*/ 10,
+                ProjectSortKey::RecencyAt,
+                SortDirection::Desc
+            )
+            .is_err()
+        );
+    }
+}
+
 #[tokio::test]
 async fn project_move_reorders_projects_and_preserves_no_op_timestamp() -> anyhow::Result<()> {
    let home = unique_temp_dir();
@@ -351,7 +626,14 @@ async fn project_move_reorders_projects_and_preserves_no_op_timestamp() -> anyho
        runtime.move_project(&three.id, Some(&one.id)).await?,
        Some(true)
    );
-    let reordered = runtime.list_projects(/*cursor*/ None, /*limit*/ 10).await?;
+    let reordered = runtime
+        .list_projects(
+            /*cursor*/ None,
+            /*limit*/ 10,
+            ProjectSortKey::Position,
+            SortDirection::Asc,
+        )
+        .await?;
    assert_eq!(
        reordered
            .projects
@@ -16,6 +16,7 @@ mod thread_sections;
 mod types;

 pub use codex_state::MAX_QUEUE_ITEMS;
+pub use codex_state::ProjectSortKey;
 pub use codex_state::QueuedUserSubmissionRecord;
 pub use error::ThreadStoreError;
 pub use error::ThreadStoreResult;
@@ -5,6 +5,7 @@ use crate::DeletedProject;
 use crate::ListProjectsParams;
 use crate::MoveProjectParams;
 use crate::ProjectMoveOutcome;
+use crate::SortDirection;
 use crate::StoredProject;
 use crate::StoredProjectRoot;
 use crate::StoredProjectsPage;
@@ -20,7 +21,15 @@ pub(super) async fn list_projects(
    let state = state(store)?;
    let has_cursor = params.cursor.is_some();
    let page = state
-        .list_projects(params.cursor.as_deref(), params.limit)
+        .list_projects(
+            params.cursor.as_deref(),
+            params.limit,
+            params.sort_key,
+            match params.sort_direction {
+                SortDirection::Asc => codex_state::SortDirection::Asc,
+                SortDirection::Desc => codex_state::SortDirection::Desc,
+            },
+        )
        .await
        .map_err(|error| {
            if has_cursor && error.to_string().starts_with("invalid project cursor:") {
@@ -178,5 +187,6 @@ fn stored_project(project: codex_state::Project) -> StoredProject {
        position: project.position,
        created_at_ms: project.created_at_ms,
        updated_at_ms: project.updated_at_ms,
+        recency_at_ms: project.recency_at_ms,
    }
 }
@@ -1,5 +1,7 @@
 use std::collections::BTreeMap;

+use crate::SortDirection;
+
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct StoredProjectRoot {
    pub path: String,
@@ -14,6 +16,7 @@ pub struct StoredProject {
    pub position: i64,
    pub created_at_ms: i64,
    pub updated_at_ms: i64,
+    pub recency_at_ms: Option<i64>,
 }

 #[derive(Clone, Debug, PartialEq, Eq)]
@@ -26,6 +29,8 @@ pub struct StoredProjectsPage {
 pub struct ListProjectsParams {
    pub cursor: Option<String>,
    pub limit: usize,
+    pub sort_key: codex_state::ProjectSortKey,
+    pub sort_direction: SortDirection,
 }

 #[derive(Clone, Debug, PartialEq, Eq)]