diff --git a/.projenrc.ts b/.projenrc.ts
index 02edfe00..20f59dd0 100644
--- a/.projenrc.ts
+++ b/.projenrc.ts
@@ -987,6 +987,7 @@ toolkitLib.package.addField("exports", {
   "./package.json": "./package.json"
 });
 
+toolkitLib.postCompileTask.prependExec('ts-node scripts/gen-code-registry.ts');
 toolkitLib.postCompileTask.exec('node build-tools/bundle.mjs');
 // Smoke test built JS files
 toolkitLib.postCompileTask.exec("node ./lib/index.js >/dev/null 2>/dev/null </dev/null");
diff --git a/packages/@aws-cdk/toolkit/.projen/tasks.json b/packages/@aws-cdk/toolkit/.projen/tasks.json
index eb1279b9..1a29048c 100644
--- a/packages/@aws-cdk/toolkit/.projen/tasks.json
+++ b/packages/@aws-cdk/toolkit/.projen/tasks.json
@@ -117,6 +117,9 @@
       "name": "post-compile",
       "description": "Runs after successful compilation",
       "steps": [
+        {
+          "exec": "ts-node scripts/gen-code-registry.ts"
+        },
         {
           "exec": "node build-tools/bundle.mjs"
         },
diff --git a/packages/@aws-cdk/toolkit/CODE_REGISTRY.md b/packages/@aws-cdk/toolkit/CODE_REGISTRY.md
new file mode 100644
index 00000000..02eb0899
--- /dev/null
+++ b/packages/@aws-cdk/toolkit/CODE_REGISTRY.md
@@ -0,0 +1,29 @@
+| Code | Description | Level | Data Interface |
+|------|-------------| ----- | -------------- |
+| CDK_TOOLKIT_I1000 | Provides synthesis times. | info | undefined |
+| CDK_TOOLKIT_I1901 | Provides stack data | result | undefined |
+| CDK_TOOLKIT_I1902 | Successfully deployed stacks | result | undefined |
+| CDK_TOOLKIT_I2901 | Provides details on the selected stacks and their dependencies | result | undefined |
+| CDK_TOOLKIT_E3900 | Resource import failed | error | undefined |
+| CDK_TOOLKIT_I5000 | Provides deployment times | info | undefined |
+| CDK_TOOLKIT_I5001 | Provides total time in deploy action, including synth and rollback | info | undefined |
+| CDK_TOOLKIT_I5002 | Provides time for resource migration | info | undefined |
+| CDK_TOOLKIT_I5031 | Informs about any log groups that are traced as part of the deployment | info | undefined |
+| CDK_TOOLKIT_I5050 | Confirm rollback during deployment | response | undefined |
+| CDK_TOOLKIT_I5060 | Confirm deploy security sensitive changes | response | undefined |
+| CDK_TOOLKIT_I5900 | Deployment results on success | result | undefined |
+| CDK_TOOLKIT_E5001 | No stacks found | error | undefined |
+| CDK_TOOLKIT_I6000 | Provides rollback times | info | undefined |
+| CDK_TOOLKIT_E6001 | No stacks found | error | undefined |
+| CDK_TOOLKIT_E6900 | Rollback failed | error | undefined |
+| CDK_TOOLKIT_I7000 | Provides destroy times | info | undefined |
+| CDK_TOOLKIT_I7010 | Confirm destroy stacks | response | undefined |
+| CDK_TOOLKIT_E7010 | Action was aborted due to negative confirmation of request | error | undefined |
+| CDK_TOOLKIT_E7900 | Stack deletion failed | error | undefined |
+| CDK_ASSEMBLY_I0042 | Writing updated context | debug | undefined |
+| CDK_ASSEMBLY_I0241 | Fetching missing context | debug | undefined |
+| CDK_ASSEMBLY_I1000 | Cloud assembly output starts | debug | undefined |
+| CDK_ASSEMBLY_I1001 | Output lines emitted by the cloud assembly to stdout | info | undefined |
+| CDK_ASSEMBLY_E1002 | Output lines emitted by the cloud assembly to stderr | error | undefined |
+| CDK_ASSEMBLY_I1003 | Cloud assembly output finished | info | undefined |
+| CDK_ASSEMBLY_E1111 | Incompatible CDK CLI version. Upgrade needed. | error | undefined |
diff --git a/packages/@aws-cdk/toolkit/scripts/gen-code-registry.ts b/packages/@aws-cdk/toolkit/scripts/gen-code-registry.ts
new file mode 100644
index 00000000..5f8017b7
--- /dev/null
+++ b/packages/@aws-cdk/toolkit/scripts/gen-code-registry.ts
@@ -0,0 +1,15 @@
+import * as fs from 'fs';
+import { CODES, CodeInfo } from '../lib/api/io/private/codes';
+
+function objectToMarkdownTable(codes: Record<string, CodeInfo>) {
+  let table = '| Code | Description | Level | Data Interface |\n';
+  table += '|------|-------------| ----- | -------------- |\n';
+  
+  Object.entries(codes).forEach(([id, code]) => {
+    table += `| ${id} | ${code.description} | ${code.level} | ${code.interface} |\n`;
+  });
+  
+  return table;
+}
+
+fs.writeFileSync('CODE_REGISTRY.md', objectToMarkdownTable(CODES));
\ No newline at end of file