From d9f291bbc862d1515fee80b11f048aa1c5b728fa Mon Sep 17 00:00:00 2001
From: Dario Piotrowicz <dario@cloudflare.com>
Date: Thu, 25 Sep 2025 11:24:15 +0100
Subject: [PATCH] Wrangler: fix `console.debug` logs not being logged at the
 `info` level (as users expect)

---
 .changeset/mean-parks-take.md                |  5 +++++
 fixtures/worker-logs/tests/index.test.ts     |  4 ++++
 packages/wrangler/src/dev/miniflare/stdio.ts | 10 +++++++++-
 3 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/mean-parks-take.md

diff --git a/.changeset/mean-parks-take.md b/.changeset/mean-parks-take.md
new file mode 100644
index 000000000000..e00febfc2401
--- /dev/null
+++ b/.changeset/mean-parks-take.md
@@ -0,0 +1,5 @@
+---
+"wrangler": patch
+---
+
+fix `console.debug` logs not being logged at the `info` level (as users expect)
diff --git a/fixtures/worker-logs/tests/index.test.ts b/fixtures/worker-logs/tests/index.test.ts
index d3c61bab92a0..51f14c51e690 100644
--- a/fixtures/worker-logs/tests/index.test.ts
+++ b/fixtures/worker-logs/tests/index.test.ts
@@ -58,6 +58,7 @@ describe("'wrangler dev' correctly displays logs", () => {
 			const output = await getWranglerDevOutput("module");
 			expect(output).toMatchInlineSnapshot(`
 				[
+				  "<<<<< console.debug() message >>>>>",
 				  "<<<<< console.info() message >>>>>",
 				  "<<<<< console.log() message >>>>>",
 				  "<<<<< stderr.write() message >>>>>",
@@ -72,6 +73,7 @@ describe("'wrangler dev' correctly displays logs", () => {
 			const output = await getWranglerDevOutput("module", ["--log-level=log"]);
 			expect(output).toMatchInlineSnapshot(`
 				[
+				  "<<<<< console.debug() message >>>>>",
 				  "<<<<< console.info() message >>>>>",
 				  "<<<<< console.log() message >>>>>",
 				  "<<<<< stderr.write() message >>>>>",
@@ -86,6 +88,7 @@ describe("'wrangler dev' correctly displays logs", () => {
 			const output = await getWranglerDevOutput("module", ["--log-level=info"]);
 			expect(output).toMatchInlineSnapshot(`
 				[
+				  "<<<<< console.debug() message >>>>>",
 				  "<<<<< console.info() message >>>>>",
 				  "X [ERROR] <<<<< console.error() message >>>>>",
 				  "▲ [WARNING] <<<<< console.warning() message >>>>>",
@@ -315,6 +318,7 @@ describe("'wrangler dev' correctly displays logs", () => {
 			]);
 			expect(output).toMatchInlineSnapshot(`
 				[
+				  "<<<<< console.debug() message >>>>>",
 				  "<<<<< console.info() message >>>>>",
 				  "<<<<< console.log() message >>>>>",
 				  "X [ERROR] <<<<< console.error() message >>>>>",
diff --git a/packages/wrangler/src/dev/miniflare/stdio.ts b/packages/wrangler/src/dev/miniflare/stdio.ts
index 3953d4a8e658..9ab74230da33 100644
--- a/packages/wrangler/src/dev/miniflare/stdio.ts
+++ b/packages/wrangler/src/dev/miniflare/stdio.ts
@@ -185,7 +185,15 @@ function logStructuredLog(
 	}
 
 	if (level === "debug") {
-		return logger.debug(message);
+		// note that debug logs are logged at the info level, this is like so because before structured logs
+		// were introduced developers were used to call `console.debug` and get their logs in the terminal
+		// during local development and we don't want to break such workflow in a non-major release
+		// (For more context see: https://github.com/cloudflare/workers-sdk/issues/10690)
+		//
+		// TODO: for the next major release we do want the debug logs to be logged at the debug level instead,
+		//       we should also introduce some mechanism to allows users to get their worker debug logs without
+		//       also getting all the wrangler debug logs
+		return logger.info(message);
 	}
 
 	if (level === "error") {