Function extractMCPServers

internal/aiagentconfig/builder.go:98–136

extractMCPServers collects MCP server definitions from two sources: 1. .mcp.json at the root (read directly, not collected in config_files) 2. settings.json files already collected (passed as raw bytes) Servers are deduplicated by name (first occurrence wins) and sorted.

(realRoot string, settingsFiles []rawConfigContent)

// 2. settings.json files already collected (passed as raw bytes)
// Servers are deduplicated by name (first occurrence wins) and sorted.
func extractMCPServers(realRoot string, settingsFiles []rawConfigContent) []MCPServer {
	seen := make(map[string]struct{})
	var servers []MCPServer

	addServers := func(extracted []MCPServer) {
		for _, s := range extracted {
			if _, ok := seen[s.Name]; !ok {
				seen[s.Name] = struct{}{}
				servers = append(servers, s)
			}
		}
	}

	// Source 1: .mcp.json read directly from disk.
	// Resolve symlinks before reading to prevent reading files outside the root.
	if extracted, err := readMCPFile(realRoot); err == nil && len(extracted) > 0 {
		addServers(extracted)
	}

	// Source 2: settings.json files (raw bytes from the Build loop)
	for _, sf := range settingsFiles {
		extracted, err := ExtractMCPServers(sf.content)
		if err != nil {
			log.Debug().Err(err).Str("path", sf.path).Msg("failed to parse MCP servers from settings")
			continue
		}
		addServers(extracted)
	}

	if len(servers) == 0 {
		return nil
	}

	sort.Slice(servers, func(i, j int) bool {
		return servers[i].Name < servers[j].Name
	})

	return servers
}

// readMCPFile reads and parses .mcp.json from the given root directory.
// It resolves symlinks and verifies the file stays inside the root before reading.