Antigravity CLI

Valency Bond™ works with the Antigravity CLI (opens in new tab) over MCP using OAuth. Installing the Valency plugin brings the MCP connection and the research skills in one step.

Coming from the Gemini CLI?

Antigravity is where Google moved Gemini CLI users (opens in new tab), and Valency no longer supports the Gemini CLI. Set Valency up here instead. The two are separate hosts with separate sign-ins, so this is a fresh setup rather than a migration.

Prerequisite

• The Antigravity CLI installed and working (agy --version returns a version)

Setup

1. Install the Valency plugin:

   agy plugin install https://github.com/valency-oss/valency-connectors

2. Start the Antigravity CLI:

   agy

3. Open the MCP manager, select valency, choose Authenticate, and complete the browser authorization flow:

   Antigravity CLI

   /mcp

   Note

   A Valency account is created automatically the first time you sign in. The email you use does not have to match the email on your Google account.

4. Verify the connection. /mcp shows valency as connected, with the Valency tools (paper search, author lookup, citation lookup, trend analysis, and more) listed.

5. Ask (more prompt ideas):

   Use Valency to search for papers about quantum computing

You're connected

You see paper results in your terminal. You can also explicitly invoke Valency tool calls.

Skills

The plugin also installs a set of multi-step research workflows on top of the MCP tools. Each one is a prescribed chain of tool calls, not a single search.

Skill	Ask things like
profile	"Who is Yoshua Bengio and what do they work on?"
landscape	"Give me a landscape of cs.LG"
similar	"Find papers similar to arXiv 1706.03762"
trends	"Is diffusion model research still growing?"
network	"Who does Yann LeCun collaborate with?"
reading-list	"What should a student of geometric deep learning be reading?"
fresh-collaborators	"Who should this researcher be talking to that they aren't already?"

Trigger a skill by slash command or natural language:

Antigravity CLI

/valency:profile Yoshua Bengio
What should David Hogg be reading next?

Troubleshooting

Plugin didn't install cleanly? Run agy plugin list to confirm valency is present and enabled. If it's disabled, run agy plugin enable valency.

Tools don't appear? Confirm /mcp shows valency as connected. If auth completed but no tools appear, restart agy so it picks up the new server connection.

Need to start over? Remove the plugin and install it again:

agy plugin uninstall valency

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Need help?

If something isn't working, check Troubleshooting for common fixes. See the FAQ for general questions, or report an issue if you're still stuck.