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ThumbGate

ThumbGate

Igor Ganapolsky

| (0) | Free
Deterministic pre-action checks, feedback capture, and MCP guardrails for AI coding agents in VS Code-compatible IDEs.
Installation
Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
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ThumbGate for VS Code-Compatible IDEs

ThumbGate blocks risky AI agent actions before they run

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.

ThumbGate feedback-to-gate flow

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.

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