Hermes-agent

optional-skills/mcp/fastmcp/templates/file_processor.py

@@ -0,0 +1,55 @@
+from __future__ import annotations
+
+from pathlib import Path
+from typing import Any
+
+from fastmcp import FastMCP
+
+
+mcp = FastMCP("__SERVER_NAME__")
+
+
+def _read_text(path: str) -> str:
+    file_path = Path(path).expanduser()
+    try:
+        return file_path.read_text(encoding="utf-8")
+    except FileNotFoundError as exc:
+        raise ValueError(f"File not found: {file_path}") from exc
+    except UnicodeDecodeError as exc:
+        raise ValueError(f"File is not valid UTF-8 text: {file_path}") from exc
+
+
+@mcp.tool
+def summarize_text_file(path: str, preview_chars: int = 1200) -> dict[str, int | str]:
+    """Return basic metadata and a preview for a UTF-8 text file."""
+    file_path = Path(path).expanduser()
+    text = _read_text(path)
+    return {
+        "path": str(file_path),
+        "characters": len(text),
+        "lines": len(text.splitlines()),
+        "preview": text[:preview_chars],
+    }
+
+
+@mcp.tool
+def search_text_file(path: str, needle: str, max_matches: int = 20) -> dict[str, Any]:
+    """Find matching lines in a UTF-8 text file."""
+    file_path = Path(path).expanduser()
+    matches: list[dict[str, Any]] = []
+    for line_number, line in enumerate(_read_text(path).splitlines(), start=1):
+        if needle.lower() in line.lower():
+            matches.append({"line_number": line_number, "line": line})
+            if len(matches) >= max_matches:
+                break
+    return {"path": str(file_path), "needle": needle, "matches": matches}
+
+
+@mcp.resource("file://{path}")
+def read_file_resource(path: str) -> str:
+    """Expose a text file as a resource."""
+    return _read_text(path)
+
+
+if __name__ == "__main__":
+    mcp.run()