diff --git a/.changeset/quiet-sourcemap-agent-frontmatter.md b/.changeset/quiet-sourcemap-agent-frontmatter.md
new file mode 100644
index 0000000..692294f
--- /dev/null
+++ b/.changeset/quiet-sourcemap-agent-frontmatter.md
@@ -0,0 +1,5 @@
+---
+"@lanterna-profiler/cli": patch
+---
+
+Remove redundant `sourcemap_applicable` metadata from agent report frontmatter. The agent format now keeps `sourcemap_status` and `sourcemap_coverage`, while structured JSON reports still expose source-map applicability.
diff --git a/packages/cli/src/renderers/agent-renderer.ts b/packages/cli/src/renderers/agent-renderer.ts
index e9b745e..4aa2b5d 100644
--- a/packages/cli/src/renderers/agent-renderer.ts
+++ b/packages/cli/src/renderers/agent-renderer.ts
@@ -99,9 +99,6 @@ function appendFrontmatter(lines: string[], report: LanternaReport): void {
     if (sourceMaps.status !== undefined) {
       lines.push(`sourcemap_status: ${yamlScalar(sourceMaps.status)}`);
     }
-    if (sourceMaps.applicable !== undefined) {
-      lines.push(`sourcemap_applicable: ${yamlScalar(sourceMaps.applicable)}`);
-    }
     lines.push(`sourcemap_maps_loaded: ${yamlScalar(sourceMaps.mapsLoaded)}`);
   } else {
     lines.push('sourcemap_coverage: null');
diff --git a/packages/cli/test/report-renderer.test.ts b/packages/cli/test/report-renderer.test.ts
index e62d2c9..c18ba0a 100644
--- a/packages/cli/test/report-renderer.test.ts
+++ b/packages/cli/test/report-renderer.test.ts
@@ -614,7 +614,7 @@ describe('renderReport', () => {
     expect(output).toContain('rerun_required: true');
     expect(output).toContain('sourcemap_coverage: 0.9');
     expect(output).toContain('sourcemap_status: ok');
-    expect(output).toContain('sourcemap_applicable: true');
+    expect(output).not.toContain('sourcemap_applicable:');
     expect(output).toContain('"control channel unavailable"');
     expect(output).toContain('## Findings');
     expect(output).toMatch(