ThumbGate for VS Code-Compatible IDEs

ThumbGate adds a local MCP guardrail layer for AI coding agents. It captures thumbs up/down feedback, turns repeated mistakes into local prevention rules, and checks risky tool calls before they run.
Works through VS Code's MCP provider API plus a .vscode/mcp.json fallback for VS Code-compatible IDEs, including Open VSX and Antigravity-style forks.
Why Install
- Block repeat mistakes before tool use — catch known-bad shell, deploy, publish, and file-edit patterns before they execute.
- Capture feedback where the work happens — use command palette actions for positive and negative feedback.
- Keep the runtime fresh — the extension launches
thumbgate@latest, so npm runtime fixes can reach installed users without a marketplace metadata refresh.
- Stay local-first — the default MCP server runs locally over stdio.

Commands
ThumbGate: Init Workspace
ThumbGate: Capture Positive Feedback
ThumbGate: Capture Negative Feedback
ThumbGate: Show Stats
ThumbGate: Open Dashboard
ThumbGate: Upgrade to Pro
Manual MCP Fallback
If your editor does not load the extension MCP provider, run ThumbGate: Init Workspace and inspect .vscode/mcp.json:
{
"servers": {
"thumbgate": {
"command": "npx",
"args": ["--yes", "--package", "thumbgate@latest", "thumbgate", "serve"]
}
}
}
Then run MCP: List Servers and start ThumbGate.
Distribution Status
- Open VSX / Antigravity-compatible installs: publish with
ovsx publish from this extension package.
- VS Code Marketplace: publish separately with
vsce publish; do not claim VS Code Marketplace availability until the listing exists.
- Direct VSIX: attach the generated
.vsix to GitHub Releases for users in VS Code-compatible IDEs without marketplace access.
Do not claim Marketplace installs, Open VSX freshness, Antigravity first-party listing status, Pro upgrades, or revenue until the corresponding marketplace dashboard or billing data proves it.