diff --git a/crates/biome_js_analyze/src/lint/complexity/no_excessive_cognitive_complexity.rs b/crates/biome_js_analyze/src/lint/complexity/no_excessive_cognitive_complexity.rs
index e7f0390a094a..0d8041ab152e 100644
--- a/crates/biome_js_analyze/src/lint/complexity/no_excessive_cognitive_complexity.rs
+++ b/crates/biome_js_analyze/src/lint/complexity/no_excessive_cognitive_complexity.rs
@@ -117,7 +117,12 @@ impl Rule for NoExcessiveCognitiveComplexity {
             RuleDiagnostic::new(
                 rule_category!(),
                 range,
-                markup!("Excessive complexity detected."),
+                markup!({
+                    format!(
+                        "Excessive complexity of {calculated_score} detected \
+                    (max: {max_allowed_complexity})."
+                    )
+                }),
             )
             .note(if calculated_score == &MAX_SCORE {
                 "Please refactor this function to reduce its complexity. \
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators.js.snap
index ae9cea1bd226..1d74ab1cf69b 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators.js.snap
@@ -19,7 +19,7 @@ function booleanOperators() {
 ```
 booleanOperators.js:1:10 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 4 detected (max: 3).
   
   > 1 │ function booleanOperators() {
       │          ^^^^^^^^^^^^^^^^
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators2.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators2.js.snap
index 380d37c5b02c..71ea9028bb8c 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators2.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/booleanOperators2.js.snap
@@ -18,7 +18,7 @@ function booleanOperators2() {
 ```
 booleanOperators2.js:1:10 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 3 detected (max: 2).
   
   > 1 │ function booleanOperators2() {
       │          ^^^^^^^^^^^^^^^^^
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/complexEventHandler.ts.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/complexEventHandler.ts.snap
index 4829ee577752..92d327a1b8f7 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/complexEventHandler.ts.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/complexEventHandler.ts.snap
@@ -106,7 +106,7 @@ function handleArrowDown(event: React.KeyboardEvent) {
 ```
 complexEventHandler.ts:1:10 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 26 detected (max: 15).
   
   > 1 │ function handleArrowDown(event: React.KeyboardEvent) {
       │          ^^^^^^^^^^^^^^^
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/excessiveNesting.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/excessiveNesting.js.snap
index 1eb3e977552d..f0701dc5020c 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/excessiveNesting.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/excessiveNesting.js.snap
@@ -38,7 +38,7 @@ function excessiveNesting() {
 ```
 excessiveNesting.js:10:46 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 255 detected (max: 15).
   
      8 │                             function nested7() {
      9 │                                 function nested8() {
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/functionalChain.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/functionalChain.js.snap
index c8119dad3e59..013e5ab68271 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/functionalChain.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/functionalChain.js.snap
@@ -25,7 +25,7 @@ function functionalChain(array) {
 ```
 functionalChain.js:4:24 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 3 detected (max: 2).
   
     2 │     return array
     3 │         .filter(Boolean)
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/lambdas.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/lambdas.js.snap
index cf41bf10e1d4..4d46d0e9f22a 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/lambdas.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/lambdas.js.snap
@@ -40,7 +40,7 @@ function lambdas(array) {
 ```
 lambdas.js:4:26 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 4 detected (max: 3).
   
     2 │     for (item of array) {              // +1, nesting = 1
     3 │         if (item) {                    // +2, nesting = 2
@@ -57,7 +57,7 @@ lambdas.js:4:26 lint/complexity/noExcessiveCognitiveComplexity ━━━━━
 ```
 lambdas.js:10:22 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 4 detected (max: 3).
   
      8 │             };
      9 │ 
@@ -74,7 +74,7 @@ lambdas.js:10:22 lint/complexity/noExcessiveCognitiveComplexity ━━━━━
 ```
 lambdas.js:16:23 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 4 detected (max: 3).
   
     14 │             }
     15 │ 
@@ -91,7 +91,7 @@ lambdas.js:16:23 lint/complexity/noExcessiveCognitiveComplexity ━━━━━
 ```
 lambdas.js:22:32 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 4 detected (max: 3).
   
     20 │             };
     21 │ 
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/nestedControlFlowStructures.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/nestedControlFlowStructures.js.snap
index 96396fa7bd6b..ec35a51b2984 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/nestedControlFlowStructures.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/nestedControlFlowStructures.js.snap
@@ -22,7 +22,7 @@ function nestedControlFlowStructures(num) {
 ```
 nestedControlFlowStructures.js:1:10 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 9 detected (max: 8).
   
   > 1 │ function nestedControlFlowStructures(num) {
       │          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches.js.snap
index 3e8030df654f..98d39d751625 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches.js.snap
@@ -20,7 +20,7 @@ function simpleBranches() {
 ```
 simpleBranches.js:1:10 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 3 detected (max: 2).
   
   > 1 │ function simpleBranches() {
       │          ^^^^^^^^^^^^^^
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches2.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches2.js.snap
index 40141b1e4665..d7313ee6d656 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches2.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/simpleBranches2.js.snap
@@ -18,7 +18,7 @@ function simpleBranches2() {
 ```
 simpleBranches2.js:1:10 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 2 detected (max: 1).
   
   > 1 │ function simpleBranches2() {
       │          ^^^^^^^^^^^^^^^
diff --git a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/sumOfPrimes.js.snap b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/sumOfPrimes.js.snap
index 649f6bd16bf7..524926bb007d 100644
--- a/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/sumOfPrimes.js.snap
+++ b/crates/biome_js_analyze/tests/specs/complexity/noExcessiveCognitiveComplexity/sumOfPrimes.js.snap
@@ -23,7 +23,7 @@ function sumOfPrimes(max) {
 ```
 sumOfPrimes.js:1:10 lint/complexity/noExcessiveCognitiveComplexity ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  ! Excessive complexity detected.
+  ! Excessive complexity of 7 detected (max: 6).
   
   > 1 │ function sumOfPrimes(max) {
       │          ^^^^^^^^^^^