diff --git a/CHANGELOG.md b/CHANGELOG.md
index caf7148..9ab73c1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -61,6 +61,10 @@ APIs change between minors without a deprecation period.
 
 ### Fixed
 
+- **`llmgw keys limits` no longer clears the limits it was not given.** Setting one limit at a scope wrote the whole
+  row, so `--tools 'jira.*'` alone took away that scope's rate, budget and model list. Only what is given changes now.
+  `--replace` writes every limit, as the console's limits form does.
+
 - **The plan refused tensor parallelism past a model's KV heads.** Qwen3-235B, with four KV heads, had no way to run
   on eight cards, though vLLM gives each card a copy of a head. A width that is a multiple of the KV heads is now
   offered, as is one that divides them.
diff --git a/internal/cli/keys.go b/internal/cli/keys.go
index d7db46d..1bd63d3 100644
--- a/internal/cli/keys.go
+++ b/internal/cli/keys.go
@@ -303,6 +303,7 @@ func newLimitsCmd(open opener) *cobra.Command {
 	var rpm, tpm int
 	var budget float64
 	var models, tools []string
+	var replace bool
 
 	cmd := &cobra.Command{
 		Use:   "limits",
@@ -358,7 +359,19 @@ func newLimitsCmd(open opener) *cobra.Command {
 					return errors.New("--per-member is for --scope org, team or project")
 				}
 			}
+			// Only what is given changes: setting a tool grant must not
+			// clear the scope's rate or budget. --replace writes the row
+			// whole, a flag not given then no limit, as the console's
+			// form does with every field it shows.
 			l := store.Limits{Scope: level, ScopeID: scopeID}
+			if !replace {
+				switch cur, err := s.LimitsFor(cmd.Context(), level, scopeID); {
+				case err == nil:
+					l = cur
+				case !errors.Is(err, store.ErrNotFound):
+					return err
+				}
+			}
 			if cmd.Flags().Changed("rpm") {
 				l.RPM = &rpm
 			}
@@ -404,6 +417,8 @@ func newLimitsCmd(open opener) *cobra.Command {
 	cmd.Flags().Float64Var(&budget, "budget", 0, "budget per period, in whole units as the quotas page shows them")
 	cmd.Flags().StringVar(&period, "period", "month", "day | month")
 	cmd.Flags().StringSliceVar(&models, "models", nil, "allowed models; empty allows none")
+	cmd.Flags().BoolVar(&replace, "replace", false,
+		"write every limit at the scope: one not given is then no limit there (default: only what is given changes)")
 	cmd.Flags().StringSliceVar(&tools, "tools", nil,
 		"the company MCP servers' tools granted here, as patterns: jira.*,db.query; none granted anywhere is none")
 	return cmd
diff --git a/internal/cli/org_test.go b/internal/cli/org_test.go
index 7c526b7..c58dcce 100644
--- a/internal/cli/org_test.go
+++ b/internal/cli/org_test.go
@@ -131,3 +131,33 @@ func TestKeyBudgetsAreWholeUnits(t *testing.T) {
 		}
 	}
 }
+
+// A limit given alone changes that limit alone: granting a tool keeps the
+// scope's rate. --replace writes the row whole, as the console's form does.
+func TestALimitGivenAloneLeavesTheOthersAtTheScope(t *testing.T) {
+	db := filepath.Join(t.TempDir(), "s.db")
+	mustRun(t, db, "org", "add", "org", "Acme")
+	mustRun(t, db, "org", "add", "team", "platform")
+	mustRun(t, db, "org", "add", "project", "gateway")
+	mustRun(t, db, "keys", "limits", "--scope", "project", "--id", "gateway", "--rpm", "30")
+	mustRun(t, db, "keys", "limits", "--scope", "project", "--id", "gateway", "--tools", "jira.*")
+	read := func() store.Limits {
+		s, err := store.Open(context.Background(), db)
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer s.Close()
+		all, _ := s.AllLimits(context.Background())
+		for _, l := range all {
+			return l
+		}
+		return store.Limits{}
+	}
+	if l := read(); l.RPM == nil || *l.RPM != 30 || len(l.AllowedTools) != 1 {
+		t.Errorf("after a tool grant: rpm %v, tools %v", l.RPM, l.AllowedTools)
+	}
+	mustRun(t, db, "keys", "limits", "--replace", "--scope", "project", "--id", "gateway", "--tpm", "1000")
+	if l := read(); l.RPM != nil || l.AllowedTools != nil || l.TPM == nil {
+		t.Errorf("after --replace: %+v", l)
+	}
+}
diff --git a/internal/cli/tui_people.go b/internal/cli/tui_people.go
index 4d02097..15a8e5d 100644
--- a/internal/cli/tui_people.go
+++ b/internal/cli/tui_people.go
@@ -407,7 +407,8 @@ func (m *consoleModel) limitsForm(scope store.Scope, id, who string) {
 			textF("company tools", tools, "MCP tools granted here, as jira.*,db.query; empty grants none here"),
 		},
 		submit: func(m *consoleModel, v []string) (tea.Cmd, error) {
-			args := []string{"keys", "limits", "--scope=" + string(scope), "--id=" + id}
+			// Every field the form shows, so an emptied one is cleared.
+			args := []string{"keys", "limits", "--replace", "--scope=" + string(scope), "--id=" + id}
 			for i, flag := range []string{"rpm", "tpm"} {
 				if v[i] != "" {
 					if _, err := strconv.Atoi(v[i]); err != nil {