Muzzle
the firewall for your AI coding agents
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Muzzle stops Claude Code and Codex from sending out your email, keys and secrets, and catches pages and files that try to take them over.
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PH · launched Oct 29, 2026 · 3 upvotes (top 10%)
- Security
- Compliance & governance
- Developer
- AI-native
- Commercial product
- Artificial Intelligence
- Security
Similar launches
See all 545 similar launches →Could you build this?
Partial A basic guard that scans agent actions for secrets and blocks outbound requests is buildable, but reliably detecting prompt injection and malicious content needs security research and evaluation that vibe coding can't supply.
What it would actually take: A real version would hook into the agent's tool-call and shell layer (for example via hooks or a proxy), apply secret and PII detection, enforce egress allowlists, and run a classifier for injected instructions in fetched pages and files. The difficulty is low false-positive detection of prompt injection and staying ahead of adversarial evasion, which requires security engineering and red-team evaluation.
Competitors
Other products that read as similar to this one : 545 launches clear the similarity bar, closest 8 shown.
Attention rank: #97 of 546 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 360 days after the earliest competitor.
- Alovia · ph · 2026-09-29 · 1 upvotes · similarity 0.53
- GuardRail, shell guards that stop Claude Code before it pushes to main · hn · 2026-09-09 · 5 upvotes · similarity 0.52
- dread-ledger · github · 2026-10-29 · 31 upvotes · similarity 0.52
- Agent 2B · ph · 2026-10-01 · 1 upvotes · similarity 0.50
- Latte · ph · 2026-10-27 · 3 upvotes · similarity 0.49
- agent-leftovers · ph · 2026-10-31 · 2 upvotes · similarity 0.48
- Termaxa · ph · 2026-10-08 · 70 upvotes · similarity 0.48
- agent-usage-guard · ph · 2026-10-23 · 2 upvotes · similarity 0.48