diff --git a/packages/document/office-kit/src/types.ts b/packages/document/office-kit/src/types.ts
index 54ad2aa440..4420de14ce 100644
--- a/packages/document/office-kit/src/types.ts
+++ b/packages/document/office-kit/src/types.ts
@@ -130,7 +130,7 @@ export interface OfficeFileResult {
   readonly path: string
   /** Complete file bytes, bounded by `maxOutputBytes`. */
   readonly bytes: number
-  /** Pages of a PDF output. */
+  /** Page count the converter reports for the output. */
   readonly pageCount?: number
   /** Requested OOXML font families unavailable to this operation. */
   readonly missingFonts: string[]
diff --git a/packages/document/tool-office/src/content.ts b/packages/document/tool-office/src/content.ts
index 3e019b6085..02fe68730d 100644
--- a/packages/document/tool-office/src/content.ts
+++ b/packages/document/tool-office/src/content.ts
@@ -50,7 +50,7 @@ export interface OfficeFileValue<Operation extends 'convert' | 'recalculate' = '
   file: string
   format: OfficeFileFormats[Operation]
   bytes: number
-  /** Pages of a PDF output. */
+  /** Page count the converter reports for the output. */
   pageCount?: number
   /** Requested font families that were substituted. */
   missingFonts: string[]
diff --git a/packages/document/tool-office/src/index.ts b/packages/document/tool-office/src/index.ts
index 1f609ac215..f6ef69bc67 100644
--- a/packages/document/tool-office/src/index.ts
+++ b/packages/document/tool-office/src/index.ts
@@ -124,7 +124,7 @@ function fileProperties<const Formats extends readonly string[]>(formats: Format
     file: { type: 'string', required: true, description: 'Absolute path of the temporary output file.' },
     format: { type: 'string', required: true, enum: formats },
     bytes: { type: 'integer', required: true },
-    pageCount: { type: 'integer', description: 'Pages of a PDF output.' },
+    pageCount: { type: 'integer', description: 'Page count the converter reports for the output.' },
     missingFonts: MISSING_FONTS_SCHEMA,
   } as const
 }
diff --git a/snapshots/session/office-progressive-ptc/system-prompt.expected.md b/snapshots/session/office-progressive-ptc/system-prompt.expected.md
index 4ed80b0fd2..9a70a7d30a 100644
--- a/snapshots/session/office-progressive-ptc/system-prompt.expected.md
+++ b/snapshots/session/office-progressive-ptc/system-prompt.expected.md
@@ -965,7 +965,7 @@ interface ToolOutputMap {
     file: string;
     format: "pdf" | "docx" | "odt" | "txt" | "xlsx" | "ods" | "csv" | "pptx" | "odp";
     bytes: number;
-    /** Pages of a PDF output. */
+    /** Page count the converter reports for the output. */
     pageCount?: number;
     missingFonts: string[];
   };
@@ -977,7 +977,7 @@ interface ToolOutputMap {
     file: string;
     format: "xlsx" | "ods";
     bytes: number;
-    /** Pages of a PDF output. */
+    /** Page count the converter reports for the output. */
     pageCount?: number;
     missingFonts: string[];
   };