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Add Antigravity 2.0 IDE + CLI MCP support #191

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44 changes: 43 additions & 1 deletion Kernel/SupportedClients.wl
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,25 @@ $supportedMCPClients = <|
"ConfigFormat" -> "JSON",
"ConfigKey" -> { "mcpServers" },
"URL" -> "https://antigravity.google",
"InstallLocation" :> { $HomeDirectory, ".gemini", "antigravity", "mcp_config.json" }
(* Antigravity 2.0 moves the MCP config to ~/.gemini/config/mcp_config.json for
installs that migrated forward from the pre-2.0 IDE. The 2.0 installer drops a
~/.gemini/config/.migrated marker after the conversation/skills/MCP migration
completes; once present, the historical ~/.gemini/antigravity/mcp_config.json
is ignored by the IDE. Fresh 2.0 installs without a migration history keep the
original path. We detect the marker and route accordingly so a single
InstallMCPServer["Antigravity"] call lands in the file the running IDE actually
reads on both fresh and upgraded systems. *)
"InstallLocation" :> antigravityInstallLocation[ ]
|>,
"AntigravityCLI" -> <|
"DisplayName" -> "Antigravity CLI",
"DefaultToolset" -> "WolframLanguage",
"Aliases" -> { "GoogleAntigravityCLI" },
"ConfigFormat" -> "JSON",
"ConfigKey" -> { "mcpServers" },
"URL" -> "https://antigravity.google/docs/cli-overview",
"ProjectPath" -> { ".agents", "mcp_config.json" },
"InstallLocation" :> { $HomeDirectory, ".gemini", "antigravity-cli", "mcp_config.json" }
|>,
"AugmentCode" -> <|
"DisplayName" -> "Augment Code",
Expand Down Expand Up @@ -303,6 +321,30 @@ defaultToolsetForTarget[ target_, _ ] := defaultToolsetForTarget @ target;

defaultToolsetForTarget // endDefinition;

(* ::**************************************************************************************************************:: *)
(* ::Section::Closed:: *)
(*Install Location Helpers*)

(* ::**************************************************************************************************************:: *)
(* ::Subsection::Closed:: *)
(*antigravityInstallLocation*)
(* See the rationale in the "Antigravity" entry of $supportedMCPClients: when the 2.0
installer migrates a pre-2.0 IDE forward, it drops a `.migrated` marker into
~/.gemini/config/ and the IDE switches to reading ~/.gemini/config/mcp_config.json
instead of the historical ~/.gemini/antigravity/mcp_config.json. Fresh 2.0 installs
that never went through migration keep the historical path. This helper is called
each time installLocation["Antigravity"] is evaluated, so the decision adapts if the
user later migrates between machines or reinstalls. *)
antigravityInstallLocation // beginDefinition;

antigravityInstallLocation[ ] := If[
FileExistsQ @ FileNameJoin @ { $HomeDirectory, ".gemini", "config", ".migrated" },
{ $HomeDirectory, ".gemini", "config", "mcp_config.json" },
{ $HomeDirectory, ".gemini", "antigravity", "mcp_config.json" }
];

antigravityInstallLocation // endDefinition;

(* ::**************************************************************************************************************:: *)
(* ::Section::Closed:: *)
(*Converter Functions*)
Expand Down
76 changes: 73 additions & 3 deletions Tests/InstallMCPServer.wlt
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Original file line number Diff line number Diff line change
Expand Up @@ -396,6 +396,65 @@ VerificationTest[
TestID -> "ToInstallName-GoogleAntigravity@@Tests/InstallMCPServer.wlt:392,1-397,2"
]

(* Antigravity install path detection: when the 2.0 installer migrates a pre-2.0 IDE
forward it drops ~/.gemini/config/.migrated; the helper must route to ~/.gemini/config/
in that case and to the historical ~/.gemini/antigravity/ otherwise. We exercise both
branches by stubbing FileExistsQ for the duration of the test. *)
VerificationTest[
Module[ { migrated, fresh },
Block[
{ FileExistsQ },
FileExistsQ[ p_ ] := StringEndsQ[ p, ".migrated" ];
migrated = Wolfram`AgentTools`SupportedClients`Private`antigravityInstallLocation[ ];
FileExistsQ[ p_ ] := False;
fresh = Wolfram`AgentTools`SupportedClients`Private`antigravityInstallLocation[ ]
];
{ Last @ migrated, FileNameTake[ FileNameJoin @ migrated, -2 ],
Last @ fresh, FileNameTake[ FileNameJoin @ fresh, -2 ] }
],
{
"mcp_config.json", FileNameJoin @ { "config", "mcp_config.json" },
"mcp_config.json", FileNameJoin @ { "antigravity", "mcp_config.json" }
},
SameTest -> Equal,
TestID -> "AntigravityInstallLocation-MigratedVsFresh@@Tests/InstallMCPServer.wlt:398,1-417,2"
]

VerificationTest[
Wolfram`AgentTools`Common`installLocation[ "AntigravityCLI", "Windows" ],
_File,
SameTest -> MatchQ,
TestID -> "InstallLocation-AntigravityCLI-Windows@@Tests/InstallMCPServer.wlt:419,1-424,2"
]

VerificationTest[
Wolfram`AgentTools`Common`installLocation[ "AntigravityCLI", "MacOSX" ],
_File,
SameTest -> MatchQ,
TestID -> "InstallLocation-AntigravityCLI-MacOSX@@Tests/InstallMCPServer.wlt:426,1-431,2"
]

VerificationTest[
Wolfram`AgentTools`Common`installLocation[ "AntigravityCLI", "Unix" ],
_File,
SameTest -> MatchQ,
TestID -> "InstallLocation-AntigravityCLI-Unix@@Tests/InstallMCPServer.wlt:433,1-438,2"
]

VerificationTest[
Wolfram`AgentTools`InstallMCPServer`Private`installDisplayName[ "AntigravityCLI" ],
"Antigravity CLI",
SameTest -> Equal,
TestID -> "InstallDisplayName-AntigravityCLI@@Tests/InstallMCPServer.wlt:440,1-445,2"
]

VerificationTest[
Wolfram`AgentTools`Common`toInstallName[ "GoogleAntigravityCLI" ],
"AntigravityCLI",
SameTest -> Equal,
TestID -> "ToInstallName-GoogleAntigravityCLI@@Tests/InstallMCPServer.wlt:447,1-452,2"
]

(* ::**************************************************************************************************************:: *)
(* ::Subsection::Closed:: *)
(*projectInstallLocation*)
Expand Down Expand Up @@ -444,6 +503,17 @@ VerificationTest[
TestID -> "ProjectInstallLocation-Codex@@Tests/InstallMCPServer.wlt:436,1-445,2"
]

VerificationTest[
Module[ { path, result },
path = FileNameJoin @ { $TemporaryDirectory, "TestProject" };
result = Wolfram`AgentTools`Common`projectInstallLocation[ "AntigravityCLI", path ];
FileNameTake[ First @ result, -2 ]
],
FileNameJoin @ { ".agents", "mcp_config.json" },
SameTest -> Equal,
TestID -> "ProjectInstallLocation-AntigravityCLI@@Tests/InstallMCPServer.wlt:447,1-456,2"
]

VerificationTest[
Module[ { path, result },
path = FileNameJoin @ { $TemporaryDirectory, "TestProject" };
Expand Down Expand Up @@ -2990,14 +3060,14 @@ VerificationTest[

VerificationTest[
Length @ $SupportedMCPClients,
18,
19,
SameTest -> Equal,
TestID -> "SupportedMCPClients-Has18Clients@@Tests/InstallMCPServer.wlt:2991,1-2996,2"
TestID -> "SupportedMCPClients-Has19Clients@@Tests/InstallMCPServer.wlt:2991,1-2996,2"
]

VerificationTest[
Keys @ $SupportedMCPClients,
{ "AmazonQ", "Antigravity", "AugmentCode", "AugmentCodeIDE", "ClaudeCode", "ClaudeDesktop", "Cline", "Codex", "CopilotCLI", "Cursor", "GeminiCLI", "Goose", "Junie", "Kiro", "OpenCode", "VisualStudioCode", "Windsurf", "Zed" },
{ "AmazonQ", "Antigravity", "AntigravityCLI", "AugmentCode", "AugmentCodeIDE", "ClaudeCode", "ClaudeDesktop", "Cline", "Codex", "CopilotCLI", "Cursor", "GeminiCLI", "Goose", "Junie", "Kiro", "OpenCode", "VisualStudioCode", "Windsurf", "Zed" },
SameTest -> Equal,
TestID -> "SupportedMCPClients-KeysSorted@@Tests/InstallMCPServer.wlt:2998,1-3003,2"
]
Expand Down
47 changes: 46 additions & 1 deletion docs/mcp-clients.md
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ The following clients have built-in support for automatic configuration via `Ins
| Gemini CLI | `"GeminiCLI"` | `"Gemini"` | JSON | No | `"WolframLanguage"` |
| Goose | `"Goose"` | — | YAML | No | `"Wolfram"` |
| Antigravity | `"Antigravity"` | `"GoogleAntigravity"` | JSON | No | `"WolframLanguage"` |
| Antigravity CLI | `"AntigravityCLI"` | `"GoogleAntigravityCLI"` | JSON | Yes | `"WolframLanguage"` |
| Junie (IDE + CLI) | `"Junie"` | `"JetBrainsJunie"` | JSON | Yes | `"WolframLanguage"` |
| Kiro | `"Kiro"` | — | JSON | Yes | `"WolframLanguage"` |
| Codex CLI | `"Codex"` | `"OpenAICodex"` | TOML | Yes | `"WolframLanguage"` |
Expand Down Expand Up @@ -191,6 +192,8 @@ Note: Copilot CLI requires the `tools` field to specify which tools to enable. `

### Gemini CLI

> **Deprecation notice (announced at Google I/O 2026):** Google is retiring Gemini CLI for free / consumer tiers on **June 18, 2026** and unifying its CLI offering under [Antigravity CLI](#antigravity-cli). Enterprise customers on Standard or Enterprise licenses can continue using Gemini CLI unchanged. New users should target `"AntigravityCLI"` instead — see the [official migration announcement](https://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/).

| Scope | Config Location |
|-------|----------------|
| Global | `~/.gemini/settings.json` |
Expand All @@ -199,12 +202,54 @@ Note: Copilot CLI requires the `tools` field to specify which tools to enable. `

### Antigravity

This entry targets the **Antigravity IDE** and the **Antigravity 2.0 standalone desktop app** (the agent-first VS Code-style editor). For the new terminal agent that replaces Gemini CLI, use [`"AntigravityCLI"`](#antigravity-cli) instead.

| Scope | Condition | Config Location |
|-------|-----------|----------------|
| Global (fresh 2.0 install) | `~/.gemini/config/.migrated` is **absent** | `~/.gemini/antigravity/mcp_config.json` |
| Global (migrated from pre-2.0 IDE) | `~/.gemini/config/.migrated` is **present** | `~/.gemini/config/mcp_config.json` |

**Format:** Same as Claude Desktop (`mcpServers` key).

`InstallMCPServer["Antigravity"]` auto-detects which path the running IDE actually reads. When the 2.0 installer migrates a pre-2.0 install forward, it drops a zero-byte `~/.gemini/config/.migrated` marker and the IDE switches to reading `~/.gemini/config/mcp_config.json`; the historical `~/.gemini/antigravity/mcp_config.json` is then ignored at runtime. Fresh 2.0 installs that never went through migration use the historical path. The installer picks the right one per call, so the same `InstallMCPServer["Antigravity"]` works on both fresh and upgraded systems.

#### Antigravity 2.0 troubleshooting

If `InstallMCPServer["Antigravity"]` writes the file but Antigravity 2.0 does not pick the server up, the cause is almost always one of the following:

1. **App restart required.** Antigravity caches the config on launch; "reload window" is not always enough — fully quit and relaunch the app.
2. **Installer directory conflict (Windows).** The Antigravity 2.0 installer can drop `app.asar` into a previous 1.x install dir under `%LOCALAPPDATA%\Programs\Antigravity\resources`. Electron's `.asar` priority then causes the wrong binary to launch, and that binary may read a different config dir than you expect. Reinstall into a clean, dedicated folder (the installer accepts `/DIR="..."`). See the [forum thread](https://discuss.ai.google.dev/t/fixing-the-antigravity-2-0-installer-directory-conflict/145591).
3. **macOS GUI launch doesn't inherit `$PATH`.** When Antigravity is launched from Finder/Dock, MCP servers that rely on user-shell `$PATH` (including the `wolframscript`/`wolfram` resolution used by the Wolfram MCP server) crash silently. Either launch Antigravity from a terminal, or pass an absolute command path in `mcp_config.json`. See the [bug report](https://discuss.ai.google.dev/t/bug-mcp-servers-crash-with-executable-file-not-found-in-path-when-antigravity-is-launched-via-macos-gui/138495).
4. **WSL file permissions.** When Antigravity is running inside WSL, the agent may not be able to write `~/.gemini/` on the Linux side — `InstallMCPServer` succeeds but the server is invisible at runtime. Run `InstallMCPServer` from within the same WSL distribution Antigravity is launched from.
5. **Cloud-synced settings overriding local edits.** Google syncs some Antigravity settings to your Google account. If the cloud copy doesn't list your server, Antigravity may overwrite your local `mcp_config.json` on next launch. Sign out / sign back in to force a resync after installing.

Post-migration directory layout (Antigravity 2.0 creates several siblings under `~/.gemini/` during the 1.x → 2.0 upgrade — `InstallMCPServer` only writes to the one the IDE actually reads):

| Path | Role |
|------|------|
| `~/.gemini/antigravity/` | Pre-migration runtime data; the historical MCP config path is here |
| `~/.gemini/config/` | Post-migration shared per-user config; the migrated MCP config path lives here, alongside the `.migrated` marker |
| `~/.gemini/antigravity-cli/` | Antigravity CLI runtime data and config (separate file) |
| `~/.gemini/antigravity-ide/` | Old pre-2.0 IDE data — not read by 2.0; safe to delete after upgrading |
| `~/.gemini/antigravity-backup/` | Pre-migration backup created by the 2.0 installer; safe to delete after confirming 2.0 works |
| `~/.gemini/antigravity-browser-profile/` | Embedded browser profile for the in-app browser tool |

### Antigravity CLI

Antigravity CLI is Google's terminal-based agent (announced at I/O 2026) that replaces Gemini CLI for free / consumer tiers on **June 18, 2026**. It shares the Antigravity agent engine with the desktop app but reads a separate config file, and — unlike Gemini CLI — keeps MCP servers in a dedicated `mcp_config.json` rather than inline in `settings.json`.

| Scope | Config Location |
|-------|----------------|
| Global | `~/.gemini/antigravity/mcp_config.json` |
| Global | `~/.gemini/antigravity-cli/mcp_config.json` |
| Project | `.agents/mcp_config.json` (in project root) |

**Format:** Same as Claude Desktop (`mcpServers` key).

Notes:
- Note the directory split: the IDE/desktop app uses `~/.gemini/antigravity/` or `~/.gemini/config/` (depending on migration state) while the CLI uses `~/.gemini/antigravity-cli/` — sibling directories, different files. A single `InstallMCPServer["AntigravityCLI"]` only covers the CLI; install to `"Antigravity"` as well if you also use the desktop app.
- Workspace skills moved from Gemini CLI's `.gemini/skills/` to Antigravity CLI's `.agents/skills/`, and workspace MCP config moved from `.gemini/settings.json` to `.agents/mcp_config.json`. If you previously checked in a `.gemini/settings.json` for Gemini CLI users, you'll need to add an equivalent `.agents/mcp_config.json` for Antigravity CLI users.
- Antigravity CLI renamed the HTTP-transport field from `"url"` (Gemini CLI) to `"serverUrl"`. The Wolfram MCP server is stdio (`command`/`args`), so this doesn't affect `InstallMCPServer` output — relevant only if you hand-edit an HTTP entry.

### Augment Code

| Scope | Config Location |
Expand Down
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