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opencode: add mcp module integration
This commit is contained in:
Thierry Delafontaine
Austin Horstman
parent
083b20c1a0
commit
c740351870
6 changed files with 202 additions and 8 deletions
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@ -16,6 +16,35 @@ let
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cfg = config.programs.opencode;
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jsonFormat = pkgs.formats.json { };
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transformMcpServer = name: server: {
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name = name;
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value = {
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enabled = !(server.disabled or false);
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}
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// (
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if server ? url then
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{
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type = "remote";
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url = server.url;
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}
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// (lib.optionalAttrs (server ? headers) { headers = server.headers; })
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else if server ? command then
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{
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type = "local";
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command = [ server.command ] ++ (server.args or [ ]);
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}
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// (lib.optionalAttrs (server ? env) { environment = server.env; })
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else
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{ }
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);
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};
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transformedMcpServers =
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if cfg.enableMcpIntegration && config.programs.mcp.enable && config.programs.mcp.servers != { } then
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lib.listToAttrs (lib.mapAttrsToList transformMcpServer config.programs.mcp.servers)
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else
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{ };
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in
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{
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meta.maintainers = with lib.maintainers; [ delafthi ];
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@ -25,6 +54,20 @@ in
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package = mkPackageOption pkgs "opencode" { nullable = true; };
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enableMcpIntegration = mkOption {
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type = lib.types.bool;
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default = false;
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description = ''
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Whether to integrate the MCP servers config from
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{option}`programs.mcp.servers` into
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{option}`programs.opencode.settings.mcp`.
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Note: Settings defined in {option}`programs.mcp.servers` are merged
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with {option}`programs.opencode.settings.mcp`, with OpenCode settings
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taking precedence.
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'';
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};
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settings = mkOption {
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inherit (jsonFormat) type;
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default = { };
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@ -147,7 +190,7 @@ in
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Custom themes for opencode. The attribute name becomes the theme
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filename, and the value is either:
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- An attribute set, that is converted to a json
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- A path to a file conaining the content
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- A path to a file containing the content
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Themes are stored in {file}`$XDG_CONFIG_HOME/opencode/themes/` directory.
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Set `programs.opencode.settings.theme` to enable the custom theme.
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See <https://opencode.ai/docs/themes/> for the documentation.
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@ -159,13 +202,21 @@ in
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home.packages = mkIf (cfg.package != null) [ cfg.package ];
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xdg.configFile = {
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"opencode/config.json" = mkIf (cfg.settings != { }) {
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source = jsonFormat.generate "config.json" (
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{
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"$schema" = "https://opencode.ai/config.json";
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}
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// cfg.settings
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);
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"opencode/config.json" = mkIf (cfg.settings != { } || transformedMcpServers != { }) {
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source =
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let
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# Merge MCP servers: transformed servers + user settings, with user settings taking precedence
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mergedMcpServers = transformedMcpServers // (cfg.settings.mcp or { });
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# Merge all settings
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mergedSettings =
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cfg.settings // (lib.optionalAttrs (mergedMcpServers != { }) { mcp = mergedMcpServers; });
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in
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jsonFormat.generate "config.json" (
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{
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"$schema" = "https://opencode.ai/config.json";
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}
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// mergedSettings
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);
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};
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"opencode/AGENTS.md" = (
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@ -11,4 +11,6 @@
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opencode-mixed-content = ./mixed-content.nix;
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opencode-themes-inline = ./themes-inline.nix;
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opencode-themes-path = ./themes-path.nix;
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opencode-mcp-integration = ./mcp-integration.nix;
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opencode-mcp-integration-with-override = ./mcp-integration-with-override.nix;
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}
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@ -0,0 +1,27 @@
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{
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"$schema": "https://opencode.ai/config.json",
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"mcp": {
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"context7": {
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"enabled": true,
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"headers": {
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"CONTEXT7_API_KEY": "{env:CONTEXT7_API_KEY}"
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},
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"type": "remote",
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"url": "https://mcp.context7.com/mcp"
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},
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"custom-server": {
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"enabled": true,
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"type": "remote",
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"url": "https://example.com"
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},
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"everything": {
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"command": [
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"custom-command"
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],
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"enabled": false,
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"type": "local"
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}
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},
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"model": "anthropic/claude-sonnet-4-20250514",
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"theme": "opencode"
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}
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@ -0,0 +1,48 @@
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{
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programs.mcp = {
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enable = true;
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servers = {
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everything = {
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command = "npx";
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args = [
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"-y"
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"@modelcontextprotocol/server-everything"
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];
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};
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context7 = {
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url = "https://mcp.context7.com/mcp";
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headers = {
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CONTEXT7_API_KEY = "{env:CONTEXT7_API_KEY}";
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};
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};
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};
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};
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programs.opencode = {
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enable = true;
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enableMcpIntegration = true;
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settings = {
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theme = "opencode";
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model = "anthropic/claude-sonnet-4-20250514";
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# User's custom MCP settings should override generated ones
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mcp = {
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everything = {
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enabled = false; # Override to disable
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command = [ "custom-command" ];
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type = "local";
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};
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custom-server = {
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enabled = true;
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type = "remote";
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url = "https://example.com";
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};
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};
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};
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};
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nmt.script = ''
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assertFileExists home-files/.config/opencode/config.json
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assertFileContent home-files/.config/opencode/config.json \
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${./mcp-integration-with-override.json}
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'';
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}
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30
tests/modules/programs/opencode/mcp-integration.json
Normal file
30
tests/modules/programs/opencode/mcp-integration.json
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@ -0,0 +1,30 @@
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{
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"$schema": "https://opencode.ai/config.json",
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"mcp": {
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"context7": {
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"enabled": true,
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"headers": {
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"CONTEXT7_API_KEY": "{env:CONTEXT7_API_KEY}"
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},
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"type": "remote",
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"url": "https://mcp.context7.com/mcp"
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},
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"disabled-server": {
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"command": [
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"echo",
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"test"
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],
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"enabled": false,
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"type": "local"
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},
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"everything": {
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"command": [
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"npx",
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"-y",
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"@modelcontextprotocol/server-everything"
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],
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"enabled": true,
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"type": "local"
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}
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}
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}
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36
tests/modules/programs/opencode/mcp-integration.nix
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36
tests/modules/programs/opencode/mcp-integration.nix
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@ -0,0 +1,36 @@
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{
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programs.mcp = {
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enable = true;
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servers = {
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everything = {
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command = "npx";
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args = [
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"-y"
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"@modelcontextprotocol/server-everything"
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];
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};
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context7 = {
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url = "https://mcp.context7.com/mcp";
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headers = {
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CONTEXT7_API_KEY = "{env:CONTEXT7_API_KEY}";
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};
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};
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disabled-server = {
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command = "echo";
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args = [ "test" ];
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disabled = true;
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};
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};
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};
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programs.opencode = {
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enable = true;
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enableMcpIntegration = true;
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};
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nmt.script = ''
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assertFileExists home-files/.config/opencode/config.json
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assertFileContent home-files/.config/opencode/config.json \
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${./mcp-integration.json}
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'';
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}
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