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mcp: pre-initialize tools and resources on server startup

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Adrià Arrufat
2026-03-01 20:44:11 +09:00
parent e359ffead0
commit fcad67a854
3 changed files with 118 additions and 97 deletions
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83
src/mcp/tools.zig
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@@ -10,90 +10,11 @@ const protocol = @import("protocol.zig");
const Server = @import("Server.zig");
pub fn handleList(server: *Server, arena: std.mem.Allocator, req: protocol.Request) !void {
const tools = [_]protocol.Tool{
.{
.name = "goto",
.description = "Navigate to a specified URL and load the page in memory so it can be reused later for info extraction.",
.inputSchema = try std.json.parseFromSliceLeaky(std.json.Value, arena,
\\{
\\ "type": "object",
\\ "properties": {
\\ "url": { "type": "string", "description": "The URL to navigate to, must be a valid URL." }
\\ },
\\ "required": ["url"]
\\}
, .{}),
},
.{
.name = "search",
.description = "Use a search engine to look for specific words, terms, sentences. The search page will then be loaded in memory.",
.inputSchema = try std.json.parseFromSliceLeaky(std.json.Value, arena,
\\{
\\ "type": "object",
\\ "properties": {
\\ "text": { "type": "string", "description": "The text to search for, must be a valid search query." }
\\ },
\\ "required": ["text"]
\\}
, .{}),
},
.{
.name = "markdown",
.description = "Get the page content in markdown format. If a url is provided, it navigates to that url first.",
.inputSchema = try std.json.parseFromSliceLeaky(std.json.Value, arena,
\\{
\\ "type": "object",
\\ "properties": {
\\ "url": { "type": "string", "description": "Optional URL to navigate to before fetching markdown." }
\\ }
\\}
, .{}),
},
.{
.name = "links",
.description = "Extract all links in the opened page. If a url is provided, it navigates to that url first.",
.inputSchema = try std.json.parseFromSliceLeaky(std.json.Value, arena,
\\{
\\ "type": "object",
\\ "properties": {
\\ "url": { "type": "string", "description": "Optional URL to navigate to before extracting links." }
\\ }
\\}
, .{}),
},
.{
.name = "evaluate",
.description = "Evaluate JavaScript in the current page context. If a url is provided, it navigates to that url first.",
.inputSchema = try std.json.parseFromSliceLeaky(std.json.Value, arena,
\\{
\\ "type": "object",
\\ "properties": {
\\ "script": { "type": "string" },
\\ "url": { "type": "string", "description": "Optional URL to navigate to before evaluating." }
\\ },
\\ "required": ["script"]
\\}
, .{}),
},
.{
.name = "over",
.description = "Used to indicate that the task is over and give the final answer if there is any. This is the last tool to be called in a task.",
.inputSchema = try std.json.parseFromSliceLeaky(std.json.Value, arena,
\\{
\\ "type": "object",
\\ "properties": {
\\ "result": { "type": "string", "description": "The final result of the task." }
\\ },
\\ "required": ["result"]
\\}
, .{}),
},
};
_ = arena;
const result = struct {
tools: []const protocol.Tool,
}{
.tools = &tools,
.tools = server.tools,
};
try sendResult(server, req.id.?, result);