diff --git a/.github/workflows/issue-gate.yml b/.github/workflows/issue-gate.yml
index e5ad5846..ff7a22d9 100644
--- a/.github/workflows/issue-gate.yml
+++ b/.github/workflows/issue-gate.yml
@@ -31,10 +31,22 @@ jobs:
               '### Environment',
             ];
             const requiredEnvironmentFields = [
-              /^\s*(?:-\s*)?Herdr version:[^\S\r\n]*\S.*$/m,
-              /^\s*(?:-\s*)?Update channel(?: \([^)]+\))?:[^\S\r\n]*\S.*$/im,
-              /^\s*(?:-\s*)?Operating system:[^\S\r\n]*\S.*$/m,
-              /^\s*(?:-\s*)?Terminal:[^\S\r\n]*\S.*$/m,
+              {
+                label: 'herdr version',
+                pattern: /^\s*(?:-\s*)?Herdr version:[^\S\r\n]*\S.*$/im,
+              },
+              {
+                label: 'update channel',
+                pattern: /^\s*(?:-\s*)?(?:Update channel(?: \([^)]+\))?|Channel):[^\S\r\n]*\S.*$/im,
+              },
+              {
+                label: 'operating system',
+                pattern: /^\s*(?:-\s*)?(?:Operating system|OS):[^\S\r\n]*\S.*$/im,
+              },
+              {
+                label: 'terminal',
+                pattern: /^\s*(?:-\s*)?Terminal:[^\S\r\n]*\S.*$/im,
+              },
             ];
 
             function escapeRegExp(value) {
@@ -125,7 +137,12 @@ jobs:
               reproduction,
               impact,
             ].every(hasContent);
-            const hasEnvironmentFields = hasContent(environment) && requiredEnvironmentFields.every((pattern) => pattern.test(environment));
+            const missingEnvironmentFields = hasContent(environment)
+              ? requiredEnvironmentFields
+                .filter((field) => !field.pattern.test(environment))
+                .map((field) => field.label)
+              : requiredEnvironmentFields.map((field) => field.label);
+            const hasEnvironmentFields = missingEnvironmentFields.length === 0;
             if (hasBugConfirmation && hasBugTemplate && extraHeadings.length > 0) {
               const message = [
                 `hi @${author}, thanks for opening this.`,
@@ -135,7 +152,7 @@ jobs:
                 'please use the exact template sections only. bug reports should describe observed behavior, exact reproduction steps, impact, and environment. extra root-cause analysis, proposed fixes, implementation plans, or generated diagnosis make reports harder to triage.',
                 ...(hasEnvironmentFields ? [] : [
                   '',
-                  'this report is also missing required environment details: herdr version, update channel, operating system, and terminal.',
+                  `this report is also missing required environment details: ${missingEnvironmentFields.join(', ')}.`,
                 ]),
                 '',
                 'closing this so the issue tracker stays limited to concise, actionable bug reports.',
@@ -167,7 +184,7 @@ jobs:
               const message = [
                 `hi @${author}, thanks for opening this.`,
                 '',
-                'this bug report is missing required environment details. please edit the issue and fill in herdr version, update channel, operating system, and terminal.',
+                `this bug report is missing required environment details: ${missingEnvironmentFields.join(', ')}. please edit the issue and fill in the missing fields.`,
                 '',
                 'shell and relevant config are optional, but they help when they affect the bug.',
               ].join('\n');