diff --git a/src/openhuman/composio/task_window.rs b/src/openhuman/composio/task_window.rs
index 0780033f7..68557be46 100644
--- a/src/openhuman/composio/task_window.rs
+++ b/src/openhuman/composio/task_window.rs
@@ -142,6 +142,36 @@ fn spec_for(slug: &str) -> Option<TaskWindowSpec> {
             ],
             order_arg: None,
         }),
+        // Todoist — `TODOIST_GET_ALL_TASKS` (returns incomplete tasks; the
+        // brief's catalog slug, fixed from the non-existent
+        // `TODOIST_GET_ACTIVE_TASKS`). No server-side narrowing: GET tasks does
+        // NOT accept a `filter` query (that lives on the separate
+        // `TODOIST_FILTER_TASKS` / `/tasks/filter` endpoint), so enforcement is
+        // pure post-filter. Todoist's v1 task object timestamps are `added_at`
+        // (creation) and `updated_at` (modification) — keying on both gives
+        // created-or-modified semantics. `created_at` is kept as a harmless
+        // defensive fallback (extra fields only ever keep, never drop).
+        // CONFIRM-AT-RUNTIME: response envelope via composio_list_tools (Todoist
+        // is not a native sync provider, so there's no repo extractor to mirror).
+        "TODOIST_GET_ALL_TASKS" => Some(TaskWindowSpec {
+            items_paths: &[
+                &["tasks"],
+                &["data", "tasks"],
+                &["results"],
+                &["data", "results"],
+                &["data"],
+                &[],
+            ],
+            ts_fields: &[
+                ("added_at", TsFormat::Iso8601),
+                ("updated_at", TsFormat::Iso8601),
+                ("created_at", TsFormat::Iso8601),
+                ("data.added_at", TsFormat::Iso8601),
+                ("data.updated_at", TsFormat::Iso8601),
+                ("data.created_at", TsFormat::Iso8601),
+            ],
+            order_arg: None,
+        }),
         _ => None,
     }
 }
@@ -175,6 +205,11 @@ pub(crate) fn apply_window_args(
             .or_insert_with(|| Value::String(since.to_rfc3339()));
     }
 
+    // Todoist has no server-side narrowing here: `TODOIST_GET_ALL_TASKS`
+    // (GET /tasks) does not accept a `filter` query — that belongs to the
+    // separate `TODOIST_FILTER_TASKS` (`/tasks/filter`) endpoint. Recency is
+    // enforced entirely by the post-filter on `added_at`/`updated_at`.
+
     tracing::debug!(
         target: "composio",
         slug,
diff --git a/src/openhuman/composio/task_window_tests.rs b/src/openhuman/composio/task_window_tests.rs
index c21a913df..96d14b701 100644
--- a/src/openhuman/composio/task_window_tests.rs
+++ b/src/openhuman/composio/task_window_tests.rs
@@ -114,6 +114,53 @@ fn notion_keeps_page_when_either_timestamp_fresh() {
     assert_eq!(results[0]["id"], "edited");
 }
 
+// ── post-filter: Todoist (added_at / updated_at) ────────────────────
+
+#[test]
+fn todoist_drops_tasks_added_before_floor() {
+    // Real Todoist v1 field is `added_at` (not created_at).
+    let resp = ok_resp(json!({
+        "tasks": [
+            { "id": "old", "added_at": "2026-06-19T09:00:00.000Z" },
+            { "id": "new", "added_at": "2026-06-20T12:00:00.000Z" },
+        ]
+    }));
+    let out = filter_response("TODOIST_GET_ALL_TASKS", resp, floor());
+    let tasks = out.data["tasks"].as_array().unwrap();
+    assert_eq!(tasks.len(), 1);
+    assert_eq!(tasks[0]["id"], "new");
+}
+
+#[test]
+fn todoist_keeps_task_updated_in_window_even_if_added_earlier() {
+    // created-or-modified: added long ago but updated recently → keep.
+    let resp = ok_resp(json!({
+        "tasks": [
+            { "id": "touched", "added_at": "2026-01-01T00:00:00.000Z",
+              "updated_at": "2026-06-20T12:00:00.000Z" },
+            { "id": "stale", "added_at": "2026-01-01T00:00:00.000Z",
+              "updated_at": "2026-01-02T00:00:00.000Z" },
+        ]
+    }));
+    let out = filter_response("TODOIST_GET_ALL_TASKS", resp, floor());
+    let tasks = out.data["tasks"].as_array().unwrap();
+    assert_eq!(tasks.len(), 1);
+    assert_eq!(tasks[0]["id"], "touched");
+}
+
+#[test]
+fn todoist_handles_bare_array_and_data_wrapped_rows() {
+    // Composio may return a bare array and/or wrap each row under `data`.
+    let resp = ok_resp(json!([
+        { "data": { "id": "old", "added_at": "2026-01-01T00:00:00.000Z" } },
+        { "data": { "id": "new", "added_at": "2026-06-20T12:00:00.000Z" } },
+    ]));
+    let out = filter_response("TODOIST_GET_ALL_TASKS", resp, floor());
+    let tasks = out.data.as_array().unwrap();
+    assert_eq!(tasks.len(), 1);
+    assert_eq!(tasks[0]["data"]["id"], "new");
+}
+
 // ── conservative behaviors ──────────────────────────────────────────
 
 #[test]
@@ -201,3 +248,20 @@ fn apply_window_args_noop_for_unknown_slug() {
     let out = apply_window_args("GMAIL_FETCH_EMAILS", Some(json!({ "a": 1 })), floor());
     assert_eq!(out.unwrap(), json!({ "a": 1 }));
 }
+
+#[test]
+fn todoist_gets_no_server_side_narrowing() {
+    // GET /tasks has no `filter` param (that's the /tasks/filter endpoint),
+    // so we must NOT inject one — enforcement is pure post-filter.
+    let out = apply_window_args(
+        "TODOIST_GET_ALL_TASKS",
+        Some(json!({ "limit": 50 })),
+        floor(),
+    )
+    .unwrap();
+    assert!(
+        out.get("filter").is_none(),
+        "must not inject a filter param"
+    );
+    assert_eq!(out["limit"], 50, "caller args preserved");
+}
diff --git a/src/openhuman/memory_sync/composio/providers/catalogs_productivity.rs b/src/openhuman/memory_sync/composio/providers/catalogs_productivity.rs
index 64a00ff6e..424efde9c 100644
--- a/src/openhuman/memory_sync/composio/providers/catalogs_productivity.rs
+++ b/src/openhuman/memory_sync/composio/providers/catalogs_productivity.rs
@@ -485,11 +485,16 @@ pub const TODOIST_CURATED: &[CuratedTool] = &[
         scope: ToolScope::Read,
     },
     CuratedTool {
-        slug: "TODOIST_GET_ACTIVE_TASKS",
+        // Composio's catalog has no `TODOIST_GET_ACTIVE_TASKS`; the real
+        // incomplete-tasks slug is `TODOIST_GET_ALL_TASKS` (docs.composio.dev/
+        // toolkits/todoist). The old slug was rejected as an unknown action.
+        slug: "TODOIST_GET_ALL_TASKS",
         scope: ToolScope::Read,
     },
     CuratedTool {
-        slug: "TODOIST_GET_COMPLETED_TASKS",
+        // Real completed-tasks slug; `TODOIST_GET_COMPLETED_TASKS` does not
+        // exist in Composio's catalog.
+        slug: "TODOIST_LIST_COMPLETED_TASKS",
         scope: ToolScope::Read,
     },
     CuratedTool {