diff --git a/config.example.yaml b/config.example.yaml
index 1c58d46dd..d006dd88c 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -154,6 +154,7 @@ max-retry-credentials: 0
 max-retry-interval: 30
 
 # When true, disable auth/model cooldown scheduling globally (prevents blackout windows after failure states).
+# A credential/provider disable-cooling value, when present, overrides this global value.
 disable-cooling: false
 
 # When true, persist per-auth cooldown status as .cds files next to auth files.
@@ -296,7 +297,7 @@ nonstream-keepalive-interval: 0
 #   - api-key: "AIzaSy...01"
 #     weight: 5 # optional: weighted-round-robin share; omitted defaults to 1; maximum 1,000,000
 #     prefix: "test" # optional: require calls like "test/gemini-3-pro-preview" to target this credential
-#     disable-cooling: false # optional: per-auth override for auth/model cooldown scheduling
+#     disable-cooling: false # optional override: true disables cooling, false enables it; omit to inherit global
 #     request-retry: 3 # optional: per-auth override of the global request-retry; 0 disables retries; omit or set < 0 to use the global value
 #     request-scoped-errors: # optional: custom rules to classify upstream errors by status and body patterns
 #       - status: 400        # HTTP status code to match
@@ -335,7 +336,7 @@ nonstream-keepalive-interval: 0
 #   - api-key: "AIzaSy...03"
 #     weight: 5 # optional: weighted-round-robin share; omitted defaults to 1; maximum 1,000,000
 #     prefix: "native" # optional: require calls like "native/gemini-3-pro-preview" to target this credential
-#     disable-cooling: false # optional: per-auth override for auth/model cooldown scheduling
+#     disable-cooling: false # optional override: true disables cooling, false enables it; omit to inherit global
 #     request-retry: 3 # optional: per-auth override of the global request-retry; 0 disables retries; omit or set < 0 to use the global value
 #     request-scoped-errors: # optional: custom rules to classify upstream errors by status and body patterns
 #       - status: 400
@@ -362,7 +363,7 @@ nonstream-keepalive-interval: 0
 #   - api-key: "sk-atSM..."
 #     weight: 5 # optional: weighted-round-robin share; omitted defaults to 1; maximum 1,000,000
 #     prefix: "test" # optional: require calls like "test/gpt-5-codex" to target this credential
-#     disable-cooling: false # optional: per-auth override for auth/model cooldown scheduling
+#     disable-cooling: false # optional override: true disables cooling, false enables it; omit to inherit global
 #     request-retry: 3 # optional: per-auth override of the global request-retry; 0 disables retries; omit or set < 0 to use the global value
 #     request-scoped-errors: # optional: custom rules to classify upstream errors by status and body patterns
 #       - status: 400
@@ -401,7 +402,7 @@ nonstream-keepalive-interval: 0
 #   - api-key: "xai-..."
 #     weight: 5 # optional: weighted-round-robin share; omitted defaults to 1; maximum 1,000,000
 #     prefix: "xai" # optional: require calls like "xai/grok-4.5" to target this credential
-#     disable-cooling: false # optional: per-auth override for auth/model cooldown scheduling
+#     disable-cooling: false # optional override: true disables cooling, false enables it; omit to inherit global
 #     request-retry: 3 # optional: per-auth override of the global request-retry; 0 disables retries; omit or set < 0 to use the global value
 #     request-scoped-errors: # optional: custom rules to classify upstream errors by status and body patterns
 #       - status: 400
@@ -433,7 +434,7 @@ nonstream-keepalive-interval: 0
 #   - api-key: "sk-atSM..."
 #     weight: 5 # optional: weighted-round-robin share; omitted defaults to 1; maximum 1,000,000
 #     prefix: "test" # optional: require calls like "test/claude-sonnet-latest" to target this credential
-#     disable-cooling: false # optional: per-auth override for auth/model cooldown scheduling
+#     disable-cooling: false # optional override: true disables cooling, false enables it; omit to inherit global
 #     request-retry: 3 # optional: per-auth override of the global request-retry; 0 disables retries; omit or set < 0 to use the global value
 #     request-scoped-errors: # optional: custom rules to classify upstream errors by status and body patterns
 #       - status: 400
@@ -521,7 +522,7 @@ nonstream-keepalive-interval: 0
 #     prefix: "test" # optional: require calls like "test/kimi-k2" to target this provider's credentials
 #     base-url: "https://openrouter.ai/api/v1" # The base URL of the provider.
 #     support-prompt-cache-key: false # optional: derive prompt_cache_key for requests from all input protocols
-#     disable-cooling: false # optional: per-provider override for auth/model cooldown scheduling
+#     disable-cooling: false # optional provider override: true disables cooling, false enables it; omit to inherit global
 #     request-retry: 3 # optional: per-provider override of the global request-retry; 0 disables retries; omit or set < 0 to use the global value
 #     request-scoped-errors: # optional: custom rules to classify upstream errors by status and body patterns
 #       - status: 400
@@ -568,6 +569,7 @@ nonstream-keepalive-interval: 0
 #   - api-key: "vk-123..."                        # x-goog-api-key header
 #     weight: 5                                    # optional: weighted-round-robin share; omitted defaults to 1; maximum 1,000,000
 #     prefix: "test"                              # optional: require calls like "test/vertex-pro" to target this credential
+#     disable-cooling: false                       # optional override: true disables cooling, false enables it; omit to inherit global
 #     request-retry: 3                             # optional: per-auth override of the global request-retry; 0 disables retries; omit or set < 0 to use the global value
 #     base-url: "https://example.com/api"         # optional, e.g. https://zenmux.ai/api; falls back to Google Vertex when omitted
 #     proxy-url: "socks5://proxy.example.com:1080" # optional per-key proxy override
diff --git a/internal/api/handlers/management/config_auth_index.go b/internal/api/handlers/management/config_auth_index.go
index 5f3ece059..d129047c7 100644
--- a/internal/api/handlers/management/config_auth_index.go
+++ b/internal/api/handlers/management/config_auth_index.go
@@ -48,7 +48,7 @@ type openAICompatibilityWithAuthIndex struct {
 	Models                []config.OpenAICompatibilityModel        `json:"models,omitempty"`
 	Headers               map[string]string                        `json:"headers,omitempty"`
 	SupportPromptCacheKey bool                                     `json:"support-prompt-cache-key,omitempty"`
-	DisableCooling        bool                                     `json:"disable-cooling,omitempty"`
+	DisableCooling        *bool                                    `json:"disable-cooling,omitempty"`
 	RequestRetry          *int                                     `json:"request-retry,omitempty"`
 	RequestScopedErrors   []config.RequestScopedErrorRule          `json:"request-scoped-errors,omitempty"`
 	AuthIndex             string                                   `json:"auth-index,omitempty"`
diff --git a/internal/api/handlers/management/config_disable_cooling_test.go b/internal/api/handlers/management/config_disable_cooling_test.go
new file mode 100644
index 000000000..f41d75c09
--- /dev/null
+++ b/internal/api/handlers/management/config_disable_cooling_test.go
@@ -0,0 +1,129 @@
+package management
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/router-for-me/CLIProxyAPI/v7/internal/config"
+)
+
+func TestPatchDisableCoolingOverrideForEveryFamily(t *testing.T) {
+	initial := true
+	tests := []struct {
+		name  string
+		setup func(*config.Config)
+		patch func(*Handler, *gin.Context)
+		get   func(*config.Config) *bool
+	}{
+		{
+			name: "gemini",
+			setup: func(cfg *config.Config) {
+				cfg.GeminiKey = []config.GeminiKey{{APIKey: "key", DisableCooling: &initial}}
+			},
+			patch: (*Handler).PatchGeminiKey,
+			get:   func(cfg *config.Config) *bool { return cfg.GeminiKey[0].DisableCooling },
+		},
+		{
+			name: "interactions",
+			setup: func(cfg *config.Config) {
+				cfg.InteractionsKey = []config.GeminiKey{{APIKey: "key", DisableCooling: &initial}}
+			},
+			patch: (*Handler).PatchInteractionsKey,
+			get:   func(cfg *config.Config) *bool { return cfg.InteractionsKey[0].DisableCooling },
+		},
+		{
+			name: "claude",
+			setup: func(cfg *config.Config) {
+				cfg.ClaudeKey = []config.ClaudeKey{{APIKey: "key", DisableCooling: &initial}}
+			},
+			patch: (*Handler).PatchClaudeKey,
+			get:   func(cfg *config.Config) *bool { return cfg.ClaudeKey[0].DisableCooling },
+		},
+		{
+			name: "openai compatibility",
+			setup: func(cfg *config.Config) {
+				cfg.OpenAICompatibility = []config.OpenAICompatibility{{
+					Name:           "compat",
+					BaseURL:        "https://compat.example.com",
+					APIKeyEntries:  []config.OpenAICompatibilityAPIKey{{APIKey: "key"}},
+					DisableCooling: &initial,
+				}}
+			},
+			patch: (*Handler).PatchOpenAICompat,
+			get:   func(cfg *config.Config) *bool { return cfg.OpenAICompatibility[0].DisableCooling },
+		},
+		{
+			name: "vertex",
+			setup: func(cfg *config.Config) {
+				cfg.VertexCompatAPIKey = []config.VertexCompatKey{{
+					APIKey:         "key",
+					BaseURL:        "https://vertex.example.com",
+					DisableCooling: &initial,
+				}}
+			},
+			patch: (*Handler).PatchVertexCompatKey,
+			get:   func(cfg *config.Config) *bool { return cfg.VertexCompatAPIKey[0].DisableCooling },
+		},
+		{
+			name: "codex",
+			setup: func(cfg *config.Config) {
+				cfg.CodexKey = []config.CodexKey{{
+					APIKey:         "key",
+					BaseURL:        "https://codex.example.com",
+					DisableCooling: &initial,
+				}}
+			},
+			patch: (*Handler).PatchCodexKey,
+			get:   func(cfg *config.Config) *bool { return cfg.CodexKey[0].DisableCooling },
+		},
+		{
+			name: "xai",
+			setup: func(cfg *config.Config) {
+				cfg.XAIKey = []config.XAIKey{{
+					APIKey:         "key",
+					BaseURL:        "https://api.x.ai/v1",
+					DisableCooling: &initial,
+				}}
+			},
+			patch: (*Handler).PatchXAIKey,
+			get:   func(cfg *config.Config) *bool { return cfg.XAIKey[0].DisableCooling },
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			cfg := &config.Config{}
+			tc.setup(cfg)
+			h := &Handler{cfg: cfg, configFilePath: writeTestConfigFile(t)}
+
+			patch := func(value string) *httptest.ResponseRecorder {
+				t.Helper()
+				rec := httptest.NewRecorder()
+				ctx, _ := gin.CreateTestContext(rec)
+				body := fmt.Sprintf(`{"index":0,"value":{"disable-cooling":%s}}`, value)
+				ctx.Request = httptest.NewRequest(http.MethodPatch, "/v0/management/key", strings.NewReader(body))
+				ctx.Request.Header.Set("Content-Type", "application/json")
+				tc.patch(h, ctx)
+				return rec
+			}
+
+			if rec := patch("false"); rec.Code != http.StatusOK {
+				t.Fatalf("false patch status = %d, want 200; body=%s", rec.Code, rec.Body.String())
+			}
+			if override := tc.get(cfg); override == nil || *override {
+				t.Fatalf("disable-cooling = %v, want explicit false", override)
+			}
+
+			if rec := patch("null"); rec.Code != http.StatusOK {
+				t.Fatalf("null patch status = %d, want 200; body=%s", rec.Code, rec.Body.String())
+			}
+			if override := tc.get(cfg); override != nil {
+				t.Fatalf("disable-cooling = %v, want inherited value", override)
+			}
+		})
+	}
+}
diff --git a/internal/api/handlers/management/config_lists.go b/internal/api/handlers/management/config_lists.go
index 1b76ceae1..2287d18b2 100644
--- a/internal/api/handlers/management/config_lists.go
+++ b/internal/api/handlers/management/config_lists.go
@@ -186,6 +186,7 @@ func (h *Handler) PatchGeminiKey(c *gin.Context) {
 		ProxyURL            *string                          `json:"proxy-url"`
 		Headers             *map[string]string               `json:"headers"`
 		ExcludedModels      *[]string                        `json:"excluded-models"`
+		DisableCooling      json.RawMessage                  `json:"disable-cooling"`
 		RequestRetry        *int                             `json:"request-retry"`
 		RequestScopedErrors *[]config.RequestScopedErrorRule `json:"request-scoped-errors"`
 	}
@@ -255,6 +256,9 @@ func (h *Handler) PatchGeminiKey(c *gin.Context) {
 	if body.Value.ExcludedModels != nil {
 		entry.ExcludedModels = config.NormalizeExcludedModels(*body.Value.ExcludedModels)
 	}
+	if !applyDisableCoolingPatch(c, body.Value.DisableCooling, &entry.DisableCooling) {
+		return
+	}
 	if body.Value.RequestRetry != nil {
 		entry.RequestRetry = body.Value.RequestRetry
 	}
@@ -367,6 +371,7 @@ func (h *Handler) PatchInteractionsKey(c *gin.Context) {
 		ProxyURL            *string                          `json:"proxy-url"`
 		Headers             *map[string]string               `json:"headers"`
 		ExcludedModels      *[]string                        `json:"excluded-models"`
+		DisableCooling      json.RawMessage                  `json:"disable-cooling"`
 		RequestRetry        *int                             `json:"request-retry"`
 		RequestScopedErrors *[]config.RequestScopedErrorRule `json:"request-scoped-errors"`
 	}
@@ -437,6 +442,9 @@ func (h *Handler) PatchInteractionsKey(c *gin.Context) {
 	if body.Value.ExcludedModels != nil {
 		entry.ExcludedModels = config.NormalizeExcludedModels(*body.Value.ExcludedModels)
 	}
+	if !applyDisableCoolingPatch(c, body.Value.DisableCooling, &entry.DisableCooling) {
+		return
+	}
 	if body.Value.RequestRetry != nil {
 		entry.RequestRetry = body.Value.RequestRetry
 	}
@@ -551,6 +559,7 @@ func (h *Handler) PatchClaudeKey(c *gin.Context) {
 		Headers                 *map[string]string               `json:"headers"`
 		ExcludedModels          *[]string                        `json:"excluded-models"`
 		RebuildMidSystemMessage *bool                            `json:"rebuild-mid-system-message"`
+		DisableCooling          json.RawMessage                  `json:"disable-cooling"`
 		RequestRetry            *int                             `json:"request-retry"`
 		RequestScopedErrors     *[]config.RequestScopedErrorRule `json:"request-scoped-errors"`
 	}
@@ -617,6 +626,9 @@ func (h *Handler) PatchClaudeKey(c *gin.Context) {
 	if body.Value.RebuildMidSystemMessage != nil {
 		entry.RebuildMidSystemMessage = *body.Value.RebuildMidSystemMessage
 	}
+	if !applyDisableCoolingPatch(c, body.Value.DisableCooling, &entry.DisableCooling) {
+		return
+	}
 	if body.Value.RequestRetry != nil {
 		entry.RequestRetry = body.Value.RequestRetry
 	}
@@ -728,7 +740,7 @@ func (h *Handler) PatchOpenAICompat(c *gin.Context) {
 		Name                  *string                             `json:"name"`
 		Prefix                *string                             `json:"prefix"`
 		Disabled              *bool                               `json:"disabled"`
-		DisableCooling        *bool                               `json:"disable-cooling"`
+		DisableCooling        json.RawMessage                     `json:"disable-cooling"`
 		BaseURL               *string                             `json:"base-url"`
 		APIKeyEntries         *[]config.OpenAICompatibilityAPIKey `json:"api-key-entries"`
 		Models                *[]config.OpenAICompatibilityModel  `json:"models"`
@@ -777,8 +789,8 @@ func (h *Handler) PatchOpenAICompat(c *gin.Context) {
 	if body.Value.Disabled != nil {
 		entry.Disabled = *body.Value.Disabled
 	}
-	if body.Value.DisableCooling != nil {
-		entry.DisableCooling = *body.Value.DisableCooling
+	if !applyDisableCoolingPatch(c, body.Value.DisableCooling, &entry.DisableCooling) {
+		return
 	}
 	if body.Value.RequestRetry != nil {
 		entry.RequestRetry = body.Value.RequestRetry
@@ -895,6 +907,7 @@ func (h *Handler) PatchVertexCompatKey(c *gin.Context) {
 		Headers        *map[string]string          `json:"headers"`
 		Models         *[]config.VertexCompatModel `json:"models"`
 		ExcludedModels *[]string                   `json:"excluded-models"`
+		DisableCooling json.RawMessage             `json:"disable-cooling"`
 		RequestRetry   *int                        `json:"request-retry"`
 	}
 	var body struct {
@@ -973,6 +986,9 @@ func (h *Handler) PatchVertexCompatKey(c *gin.Context) {
 	if body.Value.ExcludedModels != nil {
 		entry.ExcludedModels = config.NormalizeExcludedModels(*body.Value.ExcludedModels)
 	}
+	if !applyDisableCoolingPatch(c, body.Value.DisableCooling, &entry.DisableCooling) {
+		return
+	}
 	if body.Value.RequestRetry != nil {
 		entry.RequestRetry = body.Value.RequestRetry
 	}
@@ -1268,6 +1284,7 @@ func (h *Handler) PatchCodexKey(c *gin.Context) {
 		Models              *[]config.CodexModel             `json:"models"`
 		Headers             *map[string]string               `json:"headers"`
 		ExcludedModels      *[]string                        `json:"excluded-models"`
+		DisableCooling      json.RawMessage                  `json:"disable-cooling"`
 		RequestRetry        *int                             `json:"request-retry"`
 		RequestScopedErrors *[]config.RequestScopedErrorRule `json:"request-scoped-errors"`
 	}
@@ -1341,6 +1358,9 @@ func (h *Handler) PatchCodexKey(c *gin.Context) {
 	if body.Value.ExcludedModels != nil {
 		entry.ExcludedModels = config.NormalizeExcludedModels(*body.Value.ExcludedModels)
 	}
+	if !applyDisableCoolingPatch(c, body.Value.DisableCooling, &entry.DisableCooling) {
+		return
+	}
 	if body.Value.RequestRetry != nil {
 		entry.RequestRetry = body.Value.RequestRetry
 	}
@@ -1459,7 +1479,7 @@ func (h *Handler) PatchXAIKey(c *gin.Context) {
 		Models              *[]config.XAIModel               `json:"models"`
 		Headers             *map[string]string               `json:"headers"`
 		ExcludedModels      *[]string                        `json:"excluded-models"`
-		DisableCooling      *bool                            `json:"disable-cooling"`
+		DisableCooling      json.RawMessage                  `json:"disable-cooling"`
 		RequestRetry        *int                             `json:"request-retry"`
 		RequestScopedErrors *[]config.RequestScopedErrorRule `json:"request-scoped-errors"`
 	}
@@ -1536,8 +1556,8 @@ func (h *Handler) PatchXAIKey(c *gin.Context) {
 	if body.Value.ExcludedModels != nil {
 		entry.ExcludedModels = config.NormalizeExcludedModels(*body.Value.ExcludedModels)
 	}
-	if body.Value.DisableCooling != nil {
-		entry.DisableCooling = *body.Value.DisableCooling
+	if !applyDisableCoolingPatch(c, body.Value.DisableCooling, &entry.DisableCooling) {
+		return
 	}
 	if body.Value.RequestRetry != nil {
 		entry.RequestRetry = body.Value.RequestRetry
@@ -1604,6 +1624,23 @@ func (h *Handler) DeleteXAIKey(c *gin.Context) {
 	c.JSON(400, gin.H{"error": "missing api-key or index"})
 }
 
+func applyDisableCoolingPatch(c *gin.Context, raw json.RawMessage, target **bool) bool {
+	if len(raw) == 0 {
+		return true
+	}
+	if strings.TrimSpace(string(raw)) == "null" {
+		*target = nil
+		return true
+	}
+	var value bool
+	if errUnmarshal := json.Unmarshal(raw, &value); errUnmarshal != nil {
+		c.JSON(400, gin.H{"error": "disable-cooling must be a boolean or null"})
+		return false
+	}
+	*target = &value
+	return true
+}
+
 func normalizeOpenAICompatibilityEntry(entry *config.OpenAICompatibility) {
 	if entry == nil {
 		return
diff --git a/internal/api/handlers/management/config_openai_compat_test.go b/internal/api/handlers/management/config_openai_compat_test.go
index 5d609b482..5d787d3d3 100644
--- a/internal/api/handlers/management/config_openai_compat_test.go
+++ b/internal/api/handlers/management/config_openai_compat_test.go
@@ -14,6 +14,7 @@ func TestGetOpenAICompatIncludesDisableCooling(t *testing.T) {
 	t.Setenv("MANAGEMENT_PASSWORD", "")
 
 	requestRetry := 0
+	disableCooling := true
 	h := NewHandlerWithoutConfigFilePath(&config.Config{
 		OpenAICompatibility: []config.OpenAICompatibility{
 			{
@@ -26,7 +27,7 @@ func TestGetOpenAICompatIncludesDisableCooling(t *testing.T) {
 					{Name: "mimo-v2.5", Alias: ""},
 				},
 				SupportPromptCacheKey: true,
-				DisableCooling:        true,
+				DisableCooling:        &disableCooling,
 				RequestRetry:          &requestRetry,
 			},
 		},
diff --git a/internal/api/handlers/management/config_xai_key_test.go b/internal/api/handlers/management/config_xai_key_test.go
index d575c07af..74897a1d9 100644
--- a/internal/api/handlers/management/config_xai_key_test.go
+++ b/internal/api/handlers/management/config_xai_key_test.go
@@ -11,13 +11,14 @@ import (
 )
 
 func TestPatchXAIKeyUpdatesExecutionFields(t *testing.T) {
+	disableCooling := false
 	h := &Handler{
 		cfg: &config.Config{XAIKey: []config.XAIKey{{
 			APIKey:         "xai-key",
 			Priority:       1,
 			BaseURL:        "https://api.x.ai/v1",
 			Websockets:     true,
-			DisableCooling: false,
+			DisableCooling: &disableCooling,
 		}}},
 		configFilePath: writeTestConfigFile(t),
 	}
@@ -47,8 +48,8 @@ func TestPatchXAIKeyUpdatesExecutionFields(t *testing.T) {
 	if entry.Websockets {
 		t.Fatal("websockets = true, want false")
 	}
-	if !entry.DisableCooling {
-		t.Fatal("disable-cooling = false, want true")
+	if entry.DisableCooling == nil || !*entry.DisableCooling {
+		t.Fatalf("disable-cooling = %v, want true", entry.DisableCooling)
 	}
 	if entry.RequestRetry == nil || *entry.RequestRetry != 0 {
 		t.Fatalf("request-retry = %v, want 0", entry.RequestRetry)
diff --git a/internal/config/config.go b/internal/config/config.go
index 4718f253b..6e0fa6559 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -62,7 +62,7 @@ type Config struct {
 	// Default: 60. Max: 3600.
 	RedisUsageQueueRetentionSeconds int `yaml:"redis-usage-queue-retention-seconds" json:"redis-usage-queue-retention-seconds"`
 
-	// DisableCooling disables quota cooldown scheduling when true.
+	// DisableCooling disables auth/model cooldown scheduling when true unless a credential or provider overrides it.
 	DisableCooling bool `yaml:"disable-cooling" json:"disable-cooling"`
 
 	// SaveCooldownStatus persists runtime cooldown status next to auth files when true.
diff --git a/internal/config/config_types.go b/internal/config/config_types.go
index b70602e7e..9a20d48df 100644
--- a/internal/config/config_types.go
+++ b/internal/config/config_types.go
@@ -364,8 +364,9 @@ type ClaudeKey struct {
 	// RebuildMidSystemMessage moves Claude messages with role "system" into the top-level system field.
 	RebuildMidSystemMessage bool `yaml:"rebuild-mid-system-message,omitempty" json:"rebuild-mid-system-message,omitempty"`
 
-	// DisableCooling disables auth/model cooldown scheduling for this credential when true.
-	DisableCooling bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
+	// DisableCooling overrides the global cooling policy for this credential when set.
+	// True disables auth/model cooldowns; false explicitly enables them.
+	DisableCooling *bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
 
 	// RequestRetry optionally overrides the global request-retry for this credential.
 	// Nil or a negative value means "use the global request-retry". 0 disables retries.
@@ -466,8 +467,9 @@ type CodexKey struct {
 	// ExcludedModels lists model IDs that should be excluded for this provider.
 	ExcludedModels []string `yaml:"excluded-models,omitempty" json:"excluded-models,omitempty"`
 
-	// DisableCooling disables auth/model cooldown scheduling for this credential when true.
-	DisableCooling bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
+	// DisableCooling overrides the global cooling policy for this credential when set.
+	// True disables auth/model cooldowns; false explicitly enables them.
+	DisableCooling *bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
 
 	// RequestRetry optionally overrides the global request-retry for this credential.
 	// Nil or a negative value means "use the global request-retry". 0 disables retries.
@@ -562,8 +564,9 @@ type GeminiKey struct {
 	// ExcludedModels lists model IDs that should be excluded for this provider.
 	ExcludedModels []string `yaml:"excluded-models,omitempty" json:"excluded-models,omitempty"`
 
-	// DisableCooling disables auth/model cooldown scheduling for this credential when true.
-	DisableCooling bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
+	// DisableCooling overrides the global cooling policy for this credential when set.
+	// True disables auth/model cooldowns; false explicitly enables them.
+	DisableCooling *bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
 
 	// RequestRetry optionally overrides the global request-retry for this credential.
 	// Nil or a negative value means "use the global request-retry". 0 disables retries.
@@ -648,8 +651,9 @@ type OpenAICompatibility struct {
 	// SupportPromptCacheKey enables derived prompt_cache_key injection for supported requests.
 	SupportPromptCacheKey bool `yaml:"support-prompt-cache-key,omitempty" json:"support-prompt-cache-key,omitempty"`
 
-	// DisableCooling disables auth/model cooldown scheduling for this provider when true.
-	DisableCooling bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
+	// DisableCooling overrides the global cooling policy for this provider when set.
+	// True disables auth/model cooldowns; false explicitly enables them.
+	DisableCooling *bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
 
 	// RequestRetry optionally overrides the global request-retry for this provider.
 	// Nil or a negative value means "use the global request-retry". 0 disables retries.
diff --git a/internal/config/cooling_override_test.go b/internal/config/cooling_override_test.go
new file mode 100644
index 000000000..30c8f9930
--- /dev/null
+++ b/internal/config/cooling_override_test.go
@@ -0,0 +1,54 @@
+package config
+
+import "testing"
+
+func TestParseConfigBytesPreservesCoolingOverridePresence(t *testing.T) {
+	cfg, errParse := ParseConfigBytes([]byte(`
+disable-cooling: true
+gemini-api-key:
+  - api-key: gemini-key
+    disable-cooling: false
+interactions-api-key:
+  - api-key: interactions-key
+    disable-cooling: false
+claude-api-key:
+  - api-key: claude-key
+    disable-cooling: false
+codex-api-key:
+  - api-key: codex-key
+    base-url: https://codex.example.com
+    disable-cooling: false
+xai-api-key:
+  - api-key: xai-key
+    base-url: https://api.x.ai/v1
+    disable-cooling: false
+openai-compatibility:
+  - name: compat
+    base-url: https://compat.example.com
+    disable-cooling: false
+    api-key-entries:
+      - api-key: compat-key
+vertex-api-key:
+  - api-key: vertex-key
+    base-url: https://vertex.example.com
+    disable-cooling: false
+`))
+	if errParse != nil {
+		t.Fatalf("ParseConfigBytes() error = %v", errParse)
+	}
+
+	overrides := map[string]*bool{
+		"gemini":               cfg.GeminiKey[0].DisableCooling,
+		"interactions":         cfg.InteractionsKey[0].DisableCooling,
+		"claude":               cfg.ClaudeKey[0].DisableCooling,
+		"codex":                cfg.CodexKey[0].DisableCooling,
+		"xai":                  cfg.XAIKey[0].DisableCooling,
+		"openai compatibility": cfg.OpenAICompatibility[0].DisableCooling,
+		"vertex":               cfg.VertexCompatAPIKey[0].DisableCooling,
+	}
+	for name, override := range overrides {
+		if override == nil || *override {
+			t.Errorf("%s disable-cooling = %v, want explicit false", name, override)
+		}
+	}
+}
diff --git a/internal/config/vertex_compat.go b/internal/config/vertex_compat.go
index 93909107a..0adefb493 100644
--- a/internal/config/vertex_compat.go
+++ b/internal/config/vertex_compat.go
@@ -46,6 +46,10 @@ type VertexCompatKey struct {
 	// ExcludedModels lists model IDs that should be excluded for this provider.
 	ExcludedModels []string `yaml:"excluded-models,omitempty" json:"excluded-models,omitempty"`
 
+	// DisableCooling overrides the global cooling policy for this credential when set.
+	// True disables auth/model cooldowns; false explicitly enables them.
+	DisableCooling *bool `yaml:"disable-cooling,omitempty" json:"disable-cooling,omitempty"`
+
 	// RequestRetry optionally overrides the global request-retry for this credential.
 	// Nil or a negative value means "use the global request-retry". 0 disables retries.
 	RequestRetry *int `yaml:"request-retry,omitempty" json:"request-retry,omitempty"`
diff --git a/internal/config/xai_api_key_test.go b/internal/config/xai_api_key_test.go
index f6f7f4b14..940ffb437 100644
--- a/internal/config/xai_api_key_test.go
+++ b/internal/config/xai_api_key_test.go
@@ -73,8 +73,8 @@ func TestParseConfigBytesXAIAPIKeyMatchesCodexShape(t *testing.T) {
 	if entry.ProxyURL != " http://proxy.local " {
 		t.Fatalf("proxy-url = %q, want original Codex-compatible value", entry.ProxyURL)
 	}
-	if !entry.DisableCooling {
-		t.Fatal("disable-cooling = false, want true")
+	if entry.DisableCooling == nil || !*entry.DisableCooling {
+		t.Fatalf("disable-cooling = %v, want true", entry.DisableCooling)
 	}
 	if entry.RequestRetry == nil || *entry.RequestRetry != 0 {
 		t.Fatalf("request-retry = %v, want 0", entry.RequestRetry)
diff --git a/internal/watcher/diff/config_diff.go b/internal/watcher/diff/config_diff.go
index 57b3a3d8a..90049d1ac 100644
--- a/internal/watcher/diff/config_diff.go
+++ b/internal/watcher/diff/config_diff.go
@@ -173,6 +173,7 @@ func BuildConfigChangeDetails(oldCfg, newCfg *config.Config) []string {
 			if strings.TrimSpace(o.Prefix) != strings.TrimSpace(n.Prefix) {
 				changes = append(changes, fmt.Sprintf("gemini[%d].prefix: %s -> %s", i, strings.TrimSpace(o.Prefix), strings.TrimSpace(n.Prefix)))
 			}
+			changes = appendOptionalBoolChange(changes, fmt.Sprintf("gemini[%d].disable-cooling", i), o.DisableCooling, n.DisableCooling)
 			if strings.TrimSpace(o.APIKey) != strings.TrimSpace(n.APIKey) {
 				changes = append(changes, fmt.Sprintf("gemini[%d].api-key: updated", i))
 			}
@@ -207,6 +208,7 @@ func BuildConfigChangeDetails(oldCfg, newCfg *config.Config) []string {
 			if strings.TrimSpace(o.Prefix) != strings.TrimSpace(n.Prefix) {
 				changes = append(changes, fmt.Sprintf("interactions[%d].prefix: %s -> %s", i, strings.TrimSpace(o.Prefix), strings.TrimSpace(n.Prefix)))
 			}
+			changes = appendOptionalBoolChange(changes, fmt.Sprintf("interactions[%d].disable-cooling", i), o.DisableCooling, n.DisableCooling)
 			if strings.TrimSpace(o.APIKey) != strings.TrimSpace(n.APIKey) {
 				changes = append(changes, fmt.Sprintf("interactions[%d].api-key: updated", i))
 			}
@@ -243,6 +245,7 @@ func BuildConfigChangeDetails(oldCfg, newCfg *config.Config) []string {
 			if strings.TrimSpace(o.Prefix) != strings.TrimSpace(n.Prefix) {
 				changes = append(changes, fmt.Sprintf("claude[%d].prefix: %s -> %s", i, strings.TrimSpace(o.Prefix), strings.TrimSpace(n.Prefix)))
 			}
+			changes = appendOptionalBoolChange(changes, fmt.Sprintf("claude[%d].disable-cooling", i), o.DisableCooling, n.DisableCooling)
 			if strings.TrimSpace(o.APIKey) != strings.TrimSpace(n.APIKey) {
 				changes = append(changes, fmt.Sprintf("claude[%d].api-key: updated", i))
 			}
@@ -299,6 +302,7 @@ func BuildConfigChangeDetails(oldCfg, newCfg *config.Config) []string {
 			if o.AlphaSearch != n.AlphaSearch {
 				changes = append(changes, fmt.Sprintf("codex[%d].alpha-search: %t -> %t", i, o.AlphaSearch, n.AlphaSearch))
 			}
+			changes = appendOptionalBoolChange(changes, fmt.Sprintf("codex[%d].disable-cooling", i), o.DisableCooling, n.DisableCooling)
 			if strings.TrimSpace(o.APIKey) != strings.TrimSpace(n.APIKey) {
 				changes = append(changes, fmt.Sprintf("codex[%d].api-key: updated", i))
 			}
@@ -341,9 +345,7 @@ func BuildConfigChangeDetails(oldCfg, newCfg *config.Config) []string {
 			if o.Websockets != n.Websockets {
 				changes = append(changes, fmt.Sprintf("xai[%d].websockets: %t -> %t", i, o.Websockets, n.Websockets))
 			}
-			if o.DisableCooling != n.DisableCooling {
-				changes = append(changes, fmt.Sprintf("xai[%d].disable-cooling: %t -> %t", i, o.DisableCooling, n.DisableCooling))
-			}
+			changes = appendOptionalBoolChange(changes, fmt.Sprintf("xai[%d].disable-cooling", i), o.DisableCooling, n.DisableCooling)
 			changes = appendOptionalIntChange(changes, fmt.Sprintf("xai[%d].request-retry", i), o.RequestRetry, n.RequestRetry)
 			if strings.TrimSpace(o.APIKey) != strings.TrimSpace(n.APIKey) {
 				changes = append(changes, fmt.Sprintf("xai[%d].api-key: updated", i))
@@ -421,6 +423,7 @@ func BuildConfigChangeDetails(oldCfg, newCfg *config.Config) []string {
 			if strings.TrimSpace(o.Prefix) != strings.TrimSpace(n.Prefix) {
 				changes = append(changes, fmt.Sprintf("vertex[%d].prefix: %s -> %s", i, strings.TrimSpace(o.Prefix), strings.TrimSpace(n.Prefix)))
 			}
+			changes = appendOptionalBoolChange(changes, fmt.Sprintf("vertex[%d].disable-cooling", i), o.DisableCooling, n.DisableCooling)
 			if strings.TrimSpace(o.APIKey) != strings.TrimSpace(n.APIKey) {
 				changes = append(changes, fmt.Sprintf("vertex[%d].api-key: updated", i))
 			}
@@ -482,6 +485,30 @@ func appendOptionalIntChange(changes []string, field string, oldVal, newVal *int
 	return append(changes, fmt.Sprintf("%s: %s -> %s", field, formatOptionalInt(oldVal), formatOptionalInt(newVal)))
 }
 
+func appendOptionalBoolChange(changes []string, field string, oldVal, newVal *bool) []string {
+	if optionalBoolEqual(oldVal, newVal) {
+		return changes
+	}
+	return append(changes, fmt.Sprintf("%s: %s -> %s", field, formatOptionalBool(oldVal), formatOptionalBool(newVal)))
+}
+
+func optionalBoolEqual(a, b *bool) bool {
+	if a == nil && b == nil {
+		return true
+	}
+	if a == nil || b == nil {
+		return false
+	}
+	return *a == *b
+}
+
+func formatOptionalBool(value *bool) string {
+	if value == nil {
+		return "inherit"
+	}
+	return fmt.Sprintf("%t", *value)
+}
+
 func optionalIntEqual(a, b *int) bool {
 	if a == nil && b == nil {
 		return true
diff --git a/internal/watcher/diff/config_diff_test.go b/internal/watcher/diff/config_diff_test.go
index b76906ca2..f355b1ef4 100644
--- a/internal/watcher/diff/config_diff_test.go
+++ b/internal/watcher/diff/config_diff_test.go
@@ -207,6 +207,8 @@ func TestBuildConfigChangeDetails_CodexAlphaSearch(t *testing.T) {
 func TestBuildConfigChangeDetails_XAIKeys(t *testing.T) {
 	oldRetry := 1
 	newRetry := 0
+	oldDisableCooling := false
+	newDisableCooling := true
 	oldCfg := &config.Config{XAIKey: []config.XAIKey{{
 		APIKey:         "old-key",
 		Priority:       1,
@@ -214,7 +216,7 @@ func TestBuildConfigChangeDetails_XAIKeys(t *testing.T) {
 		BaseURL:        "https://old.example.com/v1",
 		ProxyURL:       "http://old-proxy",
 		Websockets:     false,
-		DisableCooling: false,
+		DisableCooling: &oldDisableCooling,
 		RequestRetry:   &oldRetry,
 		Headers:        map[string]string{"X-Test": "old"},
 		Models:         []config.XAIModel{{Name: "grok-old", Alias: "grok"}},
@@ -227,7 +229,7 @@ func TestBuildConfigChangeDetails_XAIKeys(t *testing.T) {
 		BaseURL:        "https://new.example.com/v1",
 		ProxyURL:       "http://new-proxy",
 		Websockets:     true,
-		DisableCooling: true,
+		DisableCooling: &newDisableCooling,
 		RequestRetry:   &newRetry,
 		Headers:        map[string]string{"X-Test": "new"},
 		Models:         []config.XAIModel{{Name: "grok-new", Alias: "grok"}},
diff --git a/internal/watcher/diff/cooling_override_test.go b/internal/watcher/diff/cooling_override_test.go
new file mode 100644
index 000000000..6faec72cc
--- /dev/null
+++ b/internal/watcher/diff/cooling_override_test.go
@@ -0,0 +1,75 @@
+package diff
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/router-for-me/CLIProxyAPI/v7/internal/config"
+)
+
+func TestBuildConfigChangeDetailsIncludesAllCoolingOverrides(t *testing.T) {
+	disabled := true
+	enabled := false
+	tests := []struct {
+		name   string
+		oldCfg *config.Config
+		newCfg *config.Config
+		want   string
+	}{
+		{
+			name:   "gemini inherit to false",
+			oldCfg: &config.Config{GeminiKey: []config.GeminiKey{{APIKey: "gemini-key"}}},
+			newCfg: &config.Config{GeminiKey: []config.GeminiKey{{APIKey: "gemini-key", DisableCooling: &enabled}}},
+			want:   "gemini[0].disable-cooling: inherit -> false",
+		},
+		{
+			name:   "interactions false to true",
+			oldCfg: &config.Config{InteractionsKey: []config.GeminiKey{{APIKey: "interactions-key", DisableCooling: &enabled}}},
+			newCfg: &config.Config{InteractionsKey: []config.GeminiKey{{APIKey: "interactions-key", DisableCooling: &disabled}}},
+			want:   "interactions[0].disable-cooling: false -> true",
+		},
+		{
+			name:   "claude false to true",
+			oldCfg: &config.Config{ClaudeKey: []config.ClaudeKey{{APIKey: "claude-key", DisableCooling: &enabled}}},
+			newCfg: &config.Config{ClaudeKey: []config.ClaudeKey{{APIKey: "claude-key", DisableCooling: &disabled}}},
+			want:   "claude[0].disable-cooling: false -> true",
+		},
+		{
+			name:   "codex true to inherit",
+			oldCfg: &config.Config{CodexKey: []config.CodexKey{{APIKey: "codex-key", DisableCooling: &disabled}}},
+			newCfg: &config.Config{CodexKey: []config.CodexKey{{APIKey: "codex-key"}}},
+			want:   "codex[0].disable-cooling: true -> inherit",
+		},
+		{
+			name:   "xai inherit to true",
+			oldCfg: &config.Config{XAIKey: []config.XAIKey{{APIKey: "xai-key"}}},
+			newCfg: &config.Config{XAIKey: []config.XAIKey{{APIKey: "xai-key", DisableCooling: &disabled}}},
+			want:   "xai[0].disable-cooling: inherit -> true",
+		},
+		{
+			name: "openai compatibility false to inherit",
+			oldCfg: &config.Config{OpenAICompatibility: []config.OpenAICompatibility{{
+				Name: "compat", BaseURL: "https://compat.example.com", DisableCooling: &enabled,
+			}}},
+			newCfg: &config.Config{OpenAICompatibility: []config.OpenAICompatibility{{
+				Name: "compat", BaseURL: "https://compat.example.com",
+			}}},
+			want: "disable-cooling false -> inherit",
+		},
+		{
+			name:   "vertex inherit to false",
+			oldCfg: &config.Config{VertexCompatAPIKey: []config.VertexCompatKey{{APIKey: "vertex-key"}}},
+			newCfg: &config.Config{VertexCompatAPIKey: []config.VertexCompatKey{{APIKey: "vertex-key", DisableCooling: &enabled}}},
+			want:   "vertex[0].disable-cooling: inherit -> false",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			changes := strings.Join(BuildConfigChangeDetails(tc.oldCfg, tc.newCfg), "\n")
+			if !strings.Contains(changes, tc.want) {
+				t.Fatalf("changes missing %q:\n%s", tc.want, changes)
+			}
+		})
+	}
+}
diff --git a/internal/watcher/diff/openai_compat.go b/internal/watcher/diff/openai_compat.go
index 2d88444d2..9598a3931 100644
--- a/internal/watcher/diff/openai_compat.go
+++ b/internal/watcher/diff/openai_compat.go
@@ -83,6 +83,9 @@ func describeOpenAICompatibilityUpdate(oldEntry, newEntry config.OpenAICompatibi
 	if oldEntry.SupportPromptCacheKey != newEntry.SupportPromptCacheKey {
 		details = append(details, fmt.Sprintf("support-prompt-cache-key %t -> %t", oldEntry.SupportPromptCacheKey, newEntry.SupportPromptCacheKey))
 	}
+	if !optionalBoolEqual(oldEntry.DisableCooling, newEntry.DisableCooling) {
+		details = append(details, fmt.Sprintf("disable-cooling %s -> %s", formatOptionalBool(oldEntry.DisableCooling), formatOptionalBool(newEntry.DisableCooling)))
+	}
 	if !optionalIntEqual(oldEntry.RequestRetry, newEntry.RequestRetry) {
 		details = append(details, fmt.Sprintf("request-retry %s -> %s", formatOptionalInt(oldEntry.RequestRetry), formatOptionalInt(newEntry.RequestRetry)))
 	}
diff --git a/internal/watcher/synthesizer/config.go b/internal/watcher/synthesizer/config.go
index 1ab6ae53b..489c42ce4 100644
--- a/internal/watcher/synthesizer/config.go
+++ b/internal/watcher/synthesizer/config.go
@@ -92,8 +92,8 @@ func (s *ConfigSynthesizer) synthesizeGeminiKeyEntries(ctx *SynthesisContext, en
 			"config_index": strconv.Itoa(i),
 		}
 		metadata := map[string]any{}
-		if entry.DisableCooling {
-			metadata["disable_cooling"] = true
+		if entry.DisableCooling != nil {
+			metadata["disable_cooling"] = *entry.DisableCooling
 		}
 		addRequestRetryToMetadata(entry.RequestRetry, metadata)
 		addRequestScopedErrorsToMetadata(entry.RequestScopedErrors, metadata)
@@ -151,8 +151,8 @@ func (s *ConfigSynthesizer) synthesizeClaudeKeys(ctx *SynthesisContext) []*corea
 			"config_index": strconv.Itoa(i),
 		}
 		metadata := map[string]any{}
-		if ck.DisableCooling {
-			metadata["disable_cooling"] = true
+		if ck.DisableCooling != nil {
+			metadata["disable_cooling"] = *ck.DisableCooling
 		}
 		addRequestRetryToMetadata(ck.RequestRetry, metadata)
 		addRequestScopedErrorsToMetadata(ck.RequestScopedErrors, metadata)
@@ -223,8 +223,8 @@ func (s *ConfigSynthesizer) synthesizeCodexStyleKeys(ctx *SynthesisContext, entr
 			"config_index": strconv.Itoa(i),
 		}
 		metadata := map[string]any{}
-		if entry.DisableCooling {
-			metadata["disable_cooling"] = true
+		if entry.DisableCooling != nil {
+			metadata["disable_cooling"] = *entry.DisableCooling
 		}
 		addRequestRetryToMetadata(entry.RequestRetry, metadata)
 		addRequestScopedErrorsToMetadata(entry.RequestScopedErrors, metadata)
@@ -303,8 +303,8 @@ func (s *ConfigSynthesizer) synthesizeOpenAICompat(ctx *SynthesisContext) []*cor
 				"config_index": strconv.Itoa(i),
 			}
 			metadata := map[string]any{}
-			if disableCooling {
-				metadata["disable_cooling"] = true
+			if disableCooling != nil {
+				metadata["disable_cooling"] = *disableCooling
 			}
 			addRequestRetryToMetadata(compat.RequestRetry, metadata)
 			addRequestScopedErrorsToMetadata(compat.RequestScopedErrors, metadata)
@@ -349,8 +349,8 @@ func (s *ConfigSynthesizer) synthesizeOpenAICompat(ctx *SynthesisContext) []*cor
 				"config_index": strconv.Itoa(i),
 			}
 			metadata := map[string]any{}
-			if disableCooling {
-				metadata["disable_cooling"] = true
+			if disableCooling != nil {
+				metadata["disable_cooling"] = *disableCooling
 			}
 			addRequestRetryToMetadata(compat.RequestRetry, metadata)
 			addRequestScopedErrorsToMetadata(compat.RequestScopedErrors, metadata)
@@ -416,6 +416,9 @@ func (s *ConfigSynthesizer) synthesizeVertexCompat(ctx *SynthesisContext) []*cor
 		}
 		addConfigHeadersToAttrs(compat.Headers, attrs)
 		metadata := map[string]any{}
+		if compat.DisableCooling != nil {
+			metadata["disable_cooling"] = *compat.DisableCooling
+		}
 		addRequestRetryToMetadata(compat.RequestRetry, metadata)
 		a := &coreauth.Auth{
 			ID:         id,
diff --git a/internal/watcher/synthesizer/config_test.go b/internal/watcher/synthesizer/config_test.go
index 24b1e83d3..ecb26e23b 100644
--- a/internal/watcher/synthesizer/config_test.go
+++ b/internal/watcher/synthesizer/config_test.go
@@ -81,7 +81,7 @@ func TestConfigSynthesizer_GeminiKeys(t *testing.T) {
 		{
 			name: "gemini key disable cooling",
 			geminiKeys: []config.GeminiKey{
-				{APIKey: "test-key-123", Prefix: "team-a", DisableCooling: true},
+				{APIKey: "test-key-123", Prefix: "team-a", DisableCooling: boolPointer(true)},
 			},
 			wantLen: 1,
 			validate: func(t *testing.T, auths []*coreauth.Auth) {
@@ -227,7 +227,7 @@ func TestConfigSynthesizer_ClaudeKeys(t *testing.T) {
 					APIKey:                  "sk-ant-api-xxx",
 					Prefix:                  "main",
 					BaseURL:                 "https://api.anthropic.com",
-					DisableCooling:          true,
+					DisableCooling:          boolPointer(true),
 					RebuildMidSystemMessage: true,
 					Models: []config.ClaudeModel{
 						{Name: "claude-3-opus"},
@@ -312,7 +312,7 @@ func TestConfigSynthesizer_CodexKeys(t *testing.T) {
 					ProxyURL:       "http://proxy.local",
 					Websockets:     true,
 					AlphaSearch:    true,
-					DisableCooling: true,
+					DisableCooling: boolPointer(true),
 				},
 			},
 		},
@@ -359,7 +359,7 @@ func TestConfigSynthesizer_XAIKeys(t *testing.T) {
 				ProxyURL:       "http://proxy.local",
 				Websockets:     true,
 				AlphaSearch:    true,
-				DisableCooling: true,
+				DisableCooling: boolPointer(true),
 				Headers:        map[string]string{"X-Custom": "value"},
 				Models:         []config.XAIModel{{Name: "grok-4.5", Alias: "grok-latest"}},
 			}},
@@ -446,7 +446,7 @@ func TestConfigSynthesizer_OpenAICompat(t *testing.T) {
 				{
 					Name:           "CustomProvider",
 					BaseURL:        "https://custom.api.com",
-					DisableCooling: true,
+					DisableCooling: boolPointer(true),
 					APIKeyEntries: []config.OpenAICompatibilityAPIKey{
 						{APIKey: "key-1"},
 						{APIKey: "key-2"},
diff --git a/internal/watcher/synthesizer/cooling_override_test.go b/internal/watcher/synthesizer/cooling_override_test.go
new file mode 100644
index 000000000..b091961d5
--- /dev/null
+++ b/internal/watcher/synthesizer/cooling_override_test.go
@@ -0,0 +1,95 @@
+package synthesizer
+
+import (
+	"testing"
+	"time"
+
+	"github.com/router-for-me/CLIProxyAPI/v7/internal/config"
+)
+
+func boolPointer(value bool) *bool {
+	return &value
+}
+
+func TestConfigSynthesizerPreservesExplicitFalseCoolingOverrides(t *testing.T) {
+	disableCooling := false
+	tests := []struct {
+		name string
+		cfg  *config.Config
+	}{
+		{
+			name: "gemini",
+			cfg: &config.Config{GeminiKey: []config.GeminiKey{{
+				APIKey:         "gemini-key",
+				DisableCooling: &disableCooling,
+			}}},
+		},
+		{
+			name: "interactions",
+			cfg: &config.Config{InteractionsKey: []config.GeminiKey{{
+				APIKey:         "interactions-key",
+				DisableCooling: &disableCooling,
+			}}},
+		},
+		{
+			name: "claude",
+			cfg: &config.Config{ClaudeKey: []config.ClaudeKey{{
+				APIKey:         "claude-key",
+				DisableCooling: &disableCooling,
+			}}},
+		},
+		{
+			name: "codex",
+			cfg: &config.Config{CodexKey: []config.CodexKey{{
+				APIKey:         "codex-key",
+				BaseURL:        "https://codex.example.com",
+				DisableCooling: &disableCooling,
+			}}},
+		},
+		{
+			name: "xai",
+			cfg: &config.Config{XAIKey: []config.XAIKey{{
+				APIKey:         "xai-key",
+				BaseURL:        "https://api.x.ai/v1",
+				DisableCooling: &disableCooling,
+			}}},
+		},
+		{
+			name: "openai compatibility",
+			cfg: &config.Config{OpenAICompatibility: []config.OpenAICompatibility{{
+				Name:           "compat",
+				BaseURL:        "https://compat.example.com",
+				DisableCooling: &disableCooling,
+				APIKeyEntries:  []config.OpenAICompatibilityAPIKey{{APIKey: "compat-key"}},
+			}}},
+		},
+		{
+			name: "vertex",
+			cfg: &config.Config{VertexCompatAPIKey: []config.VertexCompatKey{{
+				APIKey:         "vertex-key",
+				BaseURL:        "https://vertex.example.com",
+				DisableCooling: &disableCooling,
+			}}},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			auths, errSynthesize := NewConfigSynthesizer().Synthesize(&SynthesisContext{
+				Config:      tc.cfg,
+				Now:         time.Unix(100, 0).UTC(),
+				IDGenerator: NewStableIDGenerator(),
+			})
+			if errSynthesize != nil {
+				t.Fatalf("Synthesize() error = %v", errSynthesize)
+			}
+			if len(auths) != 1 {
+				t.Fatalf("auth count = %d, want 1", len(auths))
+			}
+			disabled, present := auths[0].DisableCoolingOverride()
+			if !present || disabled {
+				t.Fatalf("DisableCoolingOverride() = %t, %t, want false, true", disabled, present)
+			}
+		})
+	}
+}
diff --git a/sdk/cliproxy/auth/conductor_cooldown.go b/sdk/cliproxy/auth/conductor_cooldown.go
index 802803d68..90b2da3d2 100644
--- a/sdk/cliproxy/auth/conductor_cooldown.go
+++ b/sdk/cliproxy/auth/conductor_cooldown.go
@@ -24,7 +24,7 @@ var quotaCooldownDisabled atomic.Bool
 
 var transientErrorCooldownSeconds atomic.Int64
 
-// SetQuotaCooldownDisabled toggles quota cooldown scheduling globally.
+// SetQuotaCooldownDisabled toggles auth/model cooldown scheduling globally.
 func SetQuotaCooldownDisabled(disable bool) {
 	quotaCooldownDisabled.Store(disable)
 }
@@ -40,12 +40,16 @@ func quotaCooldownDisabledForAuth(auth *Auth) bool {
 }
 
 func quotaCooldownDisabledForAuthWithConfig(auth *Auth, cfg *internalconfig.Config) bool {
+	// Home owns cooldown state, so downstream instances must not schedule local cooldowns.
+	if cfg != nil && cfg.Home.Enabled {
+		return true
+	}
 	if auth != nil {
 		if override, ok := auth.DisableCoolingOverride(); ok {
 			return override
 		}
-		if providerCoolingDisabledForAuth(auth, cfg) {
-			return true
+		if override, ok := providerCoolingOverrideForAuth(auth, cfg); ok {
+			return override
 		}
 	}
 	if cfg != nil && cfg.DisableCooling {
@@ -54,13 +58,13 @@ func quotaCooldownDisabledForAuthWithConfig(auth *Auth, cfg *internalconfig.Conf
 	return quotaCooldownDisabled.Load()
 }
 
-func providerCoolingDisabledForAuth(auth *Auth, cfg *internalconfig.Config) bool {
+func providerCoolingOverrideForAuth(auth *Auth, cfg *internalconfig.Config) (bool, bool) {
 	if auth == nil || cfg == nil {
-		return false
+		return false, false
 	}
 	provider := strings.ToLower(strings.TrimSpace(auth.Provider))
 	if provider == "" {
-		return false
+		return false, false
 	}
 	providerKey := ""
 	compatName := ""
@@ -69,13 +73,16 @@ func providerCoolingDisabledForAuth(auth *Auth, cfg *internalconfig.Config) bool
 		compatName = strings.TrimSpace(auth.Attributes["compat_name"])
 	}
 	if providerKey == "" && compatName == "" && provider != "openai-compatibility" {
-		return false
+		return false, false
 	}
 	if providerKey == "" {
 		providerKey = provider
 	}
 	entry := resolveOpenAICompatConfig(cfg, providerKey, compatName, provider)
-	return entry != nil && entry.DisableCooling
+	if entry == nil || entry.DisableCooling == nil {
+		return false, false
+	}
+	return *entry.DisableCooling, true
 }
 
 func nextTransientErrorRetryAfter(now time.Time) time.Time {
diff --git a/sdk/cliproxy/auth/conductor_cooling_precedence_test.go b/sdk/cliproxy/auth/conductor_cooling_precedence_test.go
new file mode 100644
index 000000000..eadf65cf7
--- /dev/null
+++ b/sdk/cliproxy/auth/conductor_cooling_precedence_test.go
@@ -0,0 +1,82 @@
+package auth
+
+import (
+	"context"
+	"net/http"
+	"testing"
+
+	internalconfig "github.com/router-for-me/CLIProxyAPI/v7/internal/config"
+)
+
+func TestManagerMarkResultUsesCredentialCoolingPrecedence(t *testing.T) {
+	previousGlobal := quotaCooldownDisabled.Load()
+	quotaCooldownDisabled.Store(false)
+	t.Cleanup(func() { quotaCooldownDisabled.Store(previousGlobal) })
+
+	disabled := true
+	enabled := false
+	tests := []struct {
+		name             string
+		homeEnabled      bool
+		globalDisable    bool
+		credential       *bool
+		providerOverride *bool
+		wantCooldown     bool
+	}{
+		{name: "credential true overrides global false", credential: &disabled},
+		{name: "credential false overrides global true", globalDisable: true, credential: &enabled, wantCooldown: true},
+		{name: "unset inherits global true", globalDisable: true},
+		{name: "unset inherits global false", wantCooldown: true},
+		{name: "provider false overrides global true", globalDisable: true, providerOverride: &enabled, wantCooldown: true},
+		{name: "provider true overrides global false", providerOverride: &disabled},
+		{name: "credential false overrides provider true", credential: &enabled, providerOverride: &disabled, wantCooldown: true},
+		{name: "home mode disables local cooling despite credential false", homeEnabled: true, credential: &enabled},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			manager := NewManager(nil, nil, nil)
+			cfg := &internalconfig.Config{
+				DisableCooling: tc.globalDisable,
+				Home:           internalconfig.HomeConfig{Enabled: tc.homeEnabled},
+			}
+			auth := &Auth{ID: tc.name, Provider: "claude", Status: StatusActive}
+			if tc.credential != nil {
+				auth.Metadata = map[string]any{"disable_cooling": *tc.credential}
+			}
+			if tc.providerOverride != nil {
+				auth.Provider = "openai-compatibility"
+				auth.Attributes = map[string]string{
+					"provider_key": "compat",
+					"compat_name":  "compat",
+				}
+				cfg.OpenAICompatibility = []internalconfig.OpenAICompatibility{{
+					Name:           "compat",
+					BaseURL:        "https://compat.example.com",
+					DisableCooling: tc.providerOverride,
+				}}
+			}
+			manager.SetConfig(cfg)
+			if _, errRegister := manager.Register(context.Background(), auth); errRegister != nil {
+				t.Fatalf("Register() error = %v", errRegister)
+			}
+
+			const model = "test-model"
+			manager.MarkResult(context.Background(), Result{
+				AuthID:   auth.ID,
+				Provider: auth.Provider,
+				Model:    model,
+				Error:    &Error{HTTPStatus: http.StatusInternalServerError, Message: "upstream failed"},
+			})
+
+			updated, ok := manager.GetByID(auth.ID)
+			if !ok || updated == nil || updated.ModelStates[model] == nil {
+				t.Fatalf("updated auth/model state missing: %#v", updated)
+			}
+			gotCooldown := !updated.ModelStates[model].NextRetryAfter.IsZero()
+			if gotCooldown != tc.wantCooldown {
+				t.Fatalf("cooldown present = %t, want %t", gotCooldown, tc.wantCooldown)
+			}
+		})
+	}
+}
diff --git a/sdk/cliproxy/auth/types.go b/sdk/cliproxy/auth/types.go
index 008a0574f..0a9099e0e 100644
--- a/sdk/cliproxy/auth/types.go
+++ b/sdk/cliproxy/auth/types.go
@@ -431,28 +431,20 @@ func (a *Auth) ProxyInfo() string {
 	return "via proxy"
 }
 
-// DisableCoolingOverride returns the auth scoped disable_cooling override when present.
+// DisableCoolingOverride returns the auth-scoped disable_cooling override when present.
 // The value is read from metadata key "disable_cooling" (or legacy "disable-cooling").
-//
-// NOTE: This override is intentionally "true-only". When the metadata value is false, it is treated
-// as "not set" so the global disable-cooling flag can still take effect.
+// The second return value distinguishes explicit false from an absent override.
 func (a *Auth) DisableCoolingOverride() (bool, bool) {
 	if a == nil || a.Metadata == nil {
 		return false, false
 	}
 	if val, ok := a.Metadata["disable_cooling"]; ok {
 		if parsed, okParse := parseBoolAny(val); okParse {
-			if !parsed {
-				return false, false
-			}
 			return parsed, true
 		}
 	}
 	if val, ok := a.Metadata["disable-cooling"]; ok {
 		if parsed, okParse := parseBoolAny(val); okParse {
-			if !parsed {
-				return false, false
-			}
 			return parsed, true
 		}
 	}
diff --git a/sdk/cliproxy/auth/types_cooling_test.go b/sdk/cliproxy/auth/types_cooling_test.go
new file mode 100644
index 000000000..c76199542
--- /dev/null
+++ b/sdk/cliproxy/auth/types_cooling_test.go
@@ -0,0 +1,28 @@
+package auth
+
+import "testing"
+
+func TestDisableCoolingOverrideSupportsExplicitFalse(t *testing.T) {
+	tests := []struct {
+		name        string
+		auth        *Auth
+		want        bool
+		wantPresent bool
+	}{
+		{name: "unset", auth: &Auth{}},
+		{name: "canonical true", auth: &Auth{Metadata: map[string]any{"disable_cooling": true}}, want: true, wantPresent: true},
+		{name: "canonical false", auth: &Auth{Metadata: map[string]any{"disable_cooling": false}}, wantPresent: true},
+		{name: "legacy false", auth: &Auth{Metadata: map[string]any{"disable-cooling": false}}, wantPresent: true},
+		{name: "string false", auth: &Auth{Metadata: map[string]any{"disable_cooling": "false"}}, wantPresent: true},
+		{name: "invalid", auth: &Auth{Metadata: map[string]any{"disable_cooling": "invalid"}}},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got, present := tc.auth.DisableCoolingOverride()
+			if got != tc.want || present != tc.wantPresent {
+				t.Fatalf("DisableCoolingOverride() = %t, %t, want %t, %t", got, present, tc.want, tc.wantPresent)
+			}
+		})
+	}
+}
diff --git a/sdk/cliproxy/service_stale_state_test.go b/sdk/cliproxy/service_stale_state_test.go
index 60349f4aa..3047004f0 100644
--- a/sdk/cliproxy/service_stale_state_test.go
+++ b/sdk/cliproxy/service_stale_state_test.go
@@ -76,6 +76,7 @@ func TestServiceApplyCoreAuthAddOrUpdate_DeleteReAddDoesNotInheritStaleRuntimeSt
 func TestForceHomeRuntimeConfigEnablesUsageStatistics(t *testing.T) {
 	cfg := &config.Config{
 		UsageStatisticsEnabled: false,
+		DisableCooling:         false,
 		SaveCooldownStatus:     true,
 	}
 
@@ -84,6 +85,9 @@ func TestForceHomeRuntimeConfigEnablesUsageStatistics(t *testing.T) {
 	if !cfg.UsageStatisticsEnabled {
 		t.Fatal("expected home runtime config to force usage statistics enabled")
 	}
+	if !cfg.DisableCooling {
+		t.Fatal("expected home runtime config to force cooling disabled")
+	}
 	if cfg.SaveCooldownStatus {
 		t.Fatal("expected home runtime config to force cooldown status persistence disabled")
 	}