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[Bug]: Antigravity does not expose the installed plugins #28116
Description
Before submitting
- I searched existing issues and did not find a duplicate.
- I included enough detail to reproduce or investigate the problem.
Area
Not sure
Steps to reproduce
- Install a plugin in Antigravity App or agy CLI
- Autenthicate and try it so it works
- Open T3 Code and ask a Gemini model working in Antigravity to use a plugin (/gdocs for example)
- See that it says it does not exist
- Ask it why, and it says that t3-code MCP does not expose these tools that are implemented as CLI skills managed by agy in .gemini/config/plugins
Expected behavior
It should use the native plugins installed to the the task with the proper tools
Actual behavior
The AI wants to create a custom API integration with Google Cloud for the task
Impact
Blocks work completely
Version or commit
Version 0.1.6
Environment
Antigravity, Windows 11
Logs or stack traces
Screenshots, recordings, or supporting files
No response
Workaround
Use agy CLI in the terminal
Reacted by fatih akyon and Raihan Hidayatullah Djunaedi
Reacted by fatih akyon
Activity
fcakyon commentedon Nov 3, 2026
This is a big limitation and feature parity issue considering plugin dirs supported for claude code and codex. I'm working on a PR to fix this issue.
chrisjian commentedon Nov 10, 2026
I have the same problem, after I import a plugin to agy from claude code, I can use the plugin in agy cli, but it doesn't show in t3 code
ChristianGonper commentedon Nov 11, 2026
@fcakyon It also occurs with MCP configured in the .gemini folder
raihan0x1 commentedon Nov 15, 2026
Same here. Plugins I installed in Antigravity work fine in the Antigravity app and in the
agyCLI, but none of them show up in T3 Code on the Antigravity provider: they're missing from the/and$pickers, and the agent says they don't exist. Plugins installed for Claude Code show up in T3 Code right away, so for now Antigravity can't do what Claude can here.agyCLI: 1.5.8~/.gemini/config/plugins:antislop,chrome-devtools-plugin,context-mode,modern-web-guidance,ponytail. Several of these are also installed for Claude Code, and they show up there.Looking forward to #30476 landing. Happy to test it.
raihan0x1 commentedon Nov 15, 2026
Follow-up with a concrete check (T3 Code 0.1.9,
agy1.5.8, Gemini 3.8 Flash on the Antigravity provider). I asked the agent in a T3 thread to list only what was in its own context, without reading files:impeccable, a standalone skill in~/.gemini/skills/, is available.~/.gemini/config/plugins/are available, e.g.antislop(+5 sub-skills),chrome-devtools(+5),ctx-doctor/ctx-stats,modern-web-guidance,chrome-extensions,ponytail.context-mode/mcp_config.jsonisn't loaded either. The only MCP tools present are T3 Code's ownt3-codeserver.So the standalone skills directory gets loaded, but nothing under
config/plugins/does: neither the plugins' skills nor their MCP servers. That matches what #30476 addresses for skills. The plugins' MCP servers may need separate handling.