# Launch Thread

**1/7:** Your AI coding agent forgets every mistake the moment you close the session.

You corrected it yesterday. Today it breaks the same thing again.

I built a fix. 🧵

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**2/7:** ThumbGate gives Claude Code, Codex, and Gemini persistent memory across sessions.

Thumbs-up/down feedback → stored locally → queried before every action → repeated failures auto-blocked.

Pro ($19/mo or $149/yr):
https://thumbgate-production.up.railway.app/checkout/pro

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**3/7:** Self-hosting is free and takes 30 seconds.

npx thumbgate serve

Works with Claude Code, Codex CLI, Gemini CLI, Amp, Cursor. All data stays on your machine.

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**4/7:** Under the hood:

→ Captures structured feedback (context, what went wrong, severity)
→ LanceDB vector index for semantic recall mid-session
→ 3+ identical failures auto-generate a prevention rule
→ Exports DPO training pairs for fine-tuning your own model

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**5/7:** Validated using four independent AI agents — Claude, Codex, Amp, Gemini — each running the same compatibility and proof lanes.

Verification evidence and compatibility checks are generated in CI on every push.

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**6/7:** "I just put rules in my system prompt."

System prompts are per-session. They don't accumulate signal over time. They don't block semantically similar variants of the same mistake. They don't export training data.

This does all three.

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**7/7:** Free self-hosted: npx thumbgate serve
Pro ($19/mo or $149/yr): https://thumbgate-production.up.railway.app/checkout/pro
GitHub: https://github.com/IgorGanapolsky/ThumbGate

npm install thumbgate
