From 7775275046c956e8458921405ac257deeda86747 Mon Sep 17 00:00:00 2001
From: Lucas Faria Mendes <dsn.lucas@proton.me>
Date: Thu, 19 Feb 2026 14:53:40 -0300
Subject: Add function definition for file reading and create shell environment
 setup

---
 shell.nix    | 15 +++++++++++++++
 src/main.zig | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 shell.nix

diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..aff439f
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,15 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+    zig_0_15   # Zig 0.15.2
+    curl       # HTTP requests / debugging
+    jq         # JSON pretty-printing / debugging
+    git        # Version control
+    zls        # Zig Language Server (LSP)
+  ];
+
+  shellHook = ''
+    echo "Zig $(zig version) ready"
+  '';
+}
diff --git a/src/main.zig b/src/main.zig
index 7f7c16a..89c0bc4 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -32,6 +32,41 @@ pub fn main() !void {
         .messages = &[_]struct { role: []const u8, content: []const u8 }{
             .{ .role = "user", .content = prompt_str },
         },
+        .tools = &[_]struct {
+            type: []const u8,
+            function: struct {
+                name: []const u8,
+                description: []const u8,
+                parameters: struct {
+                    type: []const u8,
+                    properties: struct {
+                        file_path: struct {
+                            type: []const u8,
+                            description: []const u8,
+                        },
+                    },
+                    required: []const []const u8,
+                },
+            },
+        }{
+            .{
+                .type = "function",
+                .function = .{
+                    .name = "Read",
+                    .description = "Read and return the contents of a file",
+                    .parameters = .{
+                        .type = "object",
+                        .properties = .{
+                            .file_path = .{
+                                .type = "string",
+                                .description = "The path to the file to read",
+                            },
+                        },
+                        .required = &[_][]const u8{"file_path"},
+                    },
+                },
+            },
+        },
     });
     const body = body_out.written();
 
-- 
cgit v1.2.3