diff --git a/data/tools/file_read.meta b/data/tools/file_read.meta
index dc68ace..5bf3992 100644
--- a/data/tools/file_read.meta
+++ b/data/tools/file_read.meta
@@ -1,6 +1,6 @@
 {
   "description": "Read a file with line numbers. Prefer segments over full reads.",
-  "prompt": "## file_read\n\nRead a file with line numbers. Prefer segments over full reads.\n\n**Args**: `path` (required), `start`, `end`, or `head`\n\n- `start`/`end`: 1-indexed line numbers, inclusive. Use integers. Max segment: 2000 lines.\n- No start/end: reads up to 500 lines from line 1.\n- `head`: read first N lines (alternative to start/end).\n\n```\nfile_read(path=\"<ABSOLUTE_PATH_FROM_PWD>\")\nfile_read(path=\"<ABSOLUTE_PATH_FROM_PWD>\", start=100, end=200)\nfile_read(path=\"<ABSOLUTE_PATH_FROM_PWD>\", head=50)\n```\n\n- Use `start`/`end` as integers even though they represent line numbers.\n- Use `head` as an integer alternative to `start`/`end`.\n\n**Constraints**: Absolute paths only.",
+  "prompt": "## file_read\n\nRead a file with line numbers. Prefer segments over full reads.\n\n**Args**: `path` (required), optional `start` and `end` line numbers\n\n- `start`/`end`: 1-indexed line numbers, inclusive. Use integers. Max segment: 2000 lines.\n- No `start`/`end`: reads up to 500 lines from line 1.\n\n```\nfile_read(path=\"<ABSOLUTE_PATH_FROM_PWD>\")\nfile_read(path=\"<ABSOLUTE_PATH_FROM_PWD>\", start=100, end=200)\n```\n\n- Use `start`/`end` as integers even though they represent line numbers.\n\n**Constraints**: Absolute paths only.",
   "args": {
     "type": "object",
     "required": [
@@ -18,10 +18,6 @@
       "end": {
         "type": "integer",
         "description": "1-indexed end line, inclusive (max 2000 line segment). Use an integer."
-      },
-      "head": {
-        "type": "integer",
-        "description": "Read first N lines (alternative to start/end). Use an integer."
       }
     }
   },
diff --git a/tools/filetools/internal/filetools/filetools.go b/tools/filetools/internal/filetools/filetools.go
index 3d95522..6c2bc87 100644
--- a/tools/filetools/internal/filetools/filetools.go
+++ b/tools/filetools/internal/filetools/filetools.go
@@ -122,21 +122,12 @@ func Read(m map[string]any) (string, error) {
 	if start < 1 {
 		start = 1
 	}
-	hp, e := Int(m, "head", nil)
-	if e != nil {
-		return "", e
-	}
 	ep, e := Int(m, "end", nil)
 	if e != nil {
 		return "", e
 	}
 	end := start + MaxLines - 1
-	if hp != nil {
-		if *hp < 0 {
-			return "", fmt.Errorf("argument %q must be non-negative", "head")
-		}
-		end = start + *hp - 1
-	} else if ep != nil {
+	if ep != nil {
 		end = *ep
 		if end > start+MaxSegment-1 {
 			end = start + MaxSegment - 1