Failproof AI
Observability and policy enforcement for AI agent harnesses.
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About Failproof AI
Failproof AI is listed in our security & governance category and is aimed at builders. Observability and policy enforcement for AI agent harnesses. Pricing, as the maker states it: Open source. Maturity: Mature. We last checked the official link on 2026-10-16.
What is Failproof AI?
Failproof AI provides observability and enforcement for every harness your agents run in: it can see what agents do and block actions.
It hooks 12 agent harnesses, including coding CLIs like Claude Code and Codex, chat gateways and self-hosted assistants.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: befailproof.ai.
Who is Failproof AI for?
Teams who need oversight and policy controls on agents.
Failproof AI at a glance
- Open source: Yes (MIT License)
- GitHub: FailproofAI/failproofai · 5,995 stars (as of Oct 21, 2026)
Key features
- Observability across harnesses
- Policy enforcement
- 12 harnesses supported
Failproof AI FAQ
What is Failproof AI?
Failproof AI provides observability and enforcement for every harness your agents run in: it can see what agents do and block actions.
Who is Failproof AI for?
Teams who need oversight and policy controls on agents.
Is Failproof AI free?
Failproof AI's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Failproof AI open source?
Yes. Failproof AI is released under the MIT License, according to its GitHub repository.
What are alternatives to Failproof AI?
Similar tools include Agent Governance Toolkit, Halofy, Pragor, wren-guard Pro, Wren Pre-sign Check and ADR.
Failproof AI ratings and reviews
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Failproof AI alternatives
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Pragor
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wren-guard Pro
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Wren Pre-sign Check
Wren Pre-sign Check is a pay-per-call x402 API that an AI agent calls before it signs anything with its wallet. Send a transaction (to + data), an EIP-712 typed-data payload or untrusted text, and it returns block, review or allow, the decoded call in plain words and every finding: unlimited approvals, Permit and Permit2 signatures, setApprovalForAll, EIP-7702 delegation, contract deployment and injected instructions. With an optional wren-guard policy (allowlist, spenders, caps) it also blocks unknown recipients, over-cap amounts and lookalike addresses. It is a static check and stores nothing you send; free demos show real output.
ADR
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