diff --git a/Sources/QuotaCore/QuotaModels.swift b/Sources/QuotaCore/QuotaModels.swift
index cf1fe902..8ef5fc0b 100644
--- a/Sources/QuotaCore/QuotaModels.swift
+++ b/Sources/QuotaCore/QuotaModels.swift
@@ -625,7 +625,7 @@ private enum ISO8601Date {
     }
 }
 
-private enum QuotaProviders {
+enum QuotaProviders {
     struct Expected {
         let key: String
         let label: String
@@ -672,7 +672,12 @@ private enum QuotaProviders {
             "minimax": "minimax", "minimax-code": "minimax",
             "muse-assist": "muse-assist", "muse assist": "muse-assist", "muse_assist": "muse-assist", "muse-assistant": "muse-assist", "muse assistant": "muse-assist",
             "muse-code": "muse-code", "muse code": "muse-code", "muse_code": "muse-code",
-            "muse": "muse-code", "muse-cli": "muse-code", "muse-sdk": "muse-code",
+            // `muse` is what `subscription-status-cli` reports, and its windows
+            // are "Additional tokens" / "Free weekly limit" -- Muse Assist, per
+            // the owner 2026-10-09.  It was aliased to `muse-code` here, which
+            // filed every Assist reading under Muse Code: both rows then showed
+            // "no report" while the data sat in the handoff, correctly formed.
+            "muse": "muse-assist", "muse-cli": "muse-assist", "muse-sdk": "muse-assist",
             "kimi": "kimi", "moonshot": "kimi", "moonshot-ai": "kimi",
             "gemini-cli": "gemini-cli",
             "copilot": "github-copilot", "github-copilot": "github-copilot", "github_copilot": "github-copilot",
diff --git a/Tests/QuotaCoreTests/MuseProviderIdentityTests.swift b/Tests/QuotaCoreTests/MuseProviderIdentityTests.swift
new file mode 100644
index 00000000..10e44931
--- /dev/null
+++ b/Tests/QuotaCoreTests/MuseProviderIdentityTests.swift
@@ -0,0 +1,54 @@
+import XCTest
+@testable import QuotaCore
+
+/// Muse Assist and Muse Code are two different subscriptions, and the app
+/// showed "no report" for both while the readings sat in the handoff.
+///
+/// The alias table mapped `muse` to `muse-code`.  `subscription-status-cli`
+/// reports Muse Assist's windows under the key `muse` ("Additional tokens",
+/// "Free weekly limit"), so every one of them was rewritten to `muse-code`.
+/// The expected-provider list asks for `muse-assist`, and nothing ever emitted
+/// that key — so the Muse Assist row had no windows to show, and the rows that
+/// did resolve carried the wrong subscription's numbers.
+final class MuseProviderIdentityTests: XCTestCase {
+
+    /// The bug, stated directly: Muse Assist's own key must not be rewritten to
+    /// Muse Code's.
+    func testMuseIsMuseAssistNotMuseCode() {
+        XCTAssertEqual(QuotaProviders.canonicalKey(provider: "muse", providerKey: "muse", via: nil),
+                       "muse-assist",
+                       "'muse' is the key subscription-status-cli reports for Muse Assist")
+    }
+
+    /// The CLI spellings follow the same rule.
+    func testTheMuseCliAliasesFollowTheSameRule() {
+        for raw in ["muse-cli", "muse-sdk", "muse-assistant", "muse assistant"] {
+            XCTAssertEqual(QuotaProviders.canonicalKey(provider: raw, providerKey: raw, via: nil),
+                           "muse-assist", "'\(raw)' should resolve to Muse Assist")
+        }
+    }
+
+    /// Muse Code keeps its own identity, from its own source.
+    func testMuseCodeKeepsItsOwnIdentity() {
+        for raw in ["muse-code", "muse code", "muse_code"] {
+            XCTAssertEqual(QuotaProviders.canonicalKey(provider: raw, providerKey: raw, via: nil),
+                           "muse-code", "'\(raw)' should resolve to Muse Code")
+        }
+    }
+
+    /// Both rows are expected providers, so a missing reading reads as a real
+    /// absence rather than an unknown platform.
+    func testBothMuseProvidersAreExpected() {
+        let keys = Set(QuotaProviders.expected.map(\.key))
+        XCTAssertTrue(keys.contains("muse-assist"), "Muse Assist is missing from the expected list")
+        XCTAssertTrue(keys.contains("muse-code"), "Muse Code is missing from the expected list")
+    }
+
+    /// The regression that would bring the bug back: a window reported under
+    /// `muse` must land on the Muse Assist section, not Muse Code's.
+    func testAWindowKeyedMuseLandsOnMuseAssist() {
+        let canonical = QuotaProviders.canonicalKey(provider: "muse", providerKey: "muse", via: nil)
+        XCTAssertNotEqual(canonical, "muse-code",
+                          "Muse Assist's readings are being filed under Muse Code again")
+    }
+}