Agent governance that stops costly AI mistakes before they run: pre-action gates, shared lessons, and team safeguards for AI coding workflows.
# ThumbGate **Your AI coding bill has a leak.** **Stop paying $ for the same AI mistake.** Every retry loop, every hallucinated import, every *"let me try a different approach"* — those are billable tokens on every LLM vendor's bill. Thumbs-down once; ThumbGate blocks that exact mistake on every future call. Across Claude Code, Cursor, Codex, Cursor, Amp, OpenCode — any MCP-compatible agent, forever. Under the hood: your thumbs-down becomes a **Pre-Action Gate** that physically blocks the pattern **permanently** on every future call — across every session, every model, every agent. It is **self-improving agent governance**: every correction promotes a fresh prevention rule, and your library of Pre-Action Gates grows stronger with every lesson. Works with Claude Code, Cursor, Codex, Cursor CLI, Amp, OpenCode, and any MCP-compatible agent. The monthly Anthropic / OpenAI bill stops paying for the same lesson over and over — local-first enforcement, zero tokens spent on repeats. > **Prevent expensive AI mistakes. Make AI stop repeating mistakes. Turn a smart assistant into a reliable operator.** > **Mission:** make AI coding affordable by making sure you never pay for the same mistake twice. [](https://github.com/IgorGanapolsky/ThumbGate/actions/workflows/ci.yml) [](https://www.npmjs.com/package/thumbgate) [](LICENSE) --- ## First-dollar activation path If someone is not already bought into ThumbGate, do not lead with architecture. Lead with one repeated mistake. 1. **Show the pain:** open the **[ThumbGate GPT](https://thumbgate-production.up.railway.app/go/gpt?utm_source=github&utm_medium=readme&utm_campaign=first_dollar_activation&cta_id=readme_first_dollar_open_gpt&cta_placement=readme_first_dollar)** and paste the bad answer, risky command, deploy, PR action, o
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