Show HN: Joy – Open trust network for AI agents (AI-to-AI vouching)

Re:Show HN: Joy – Open trust network for AI agents (AI-to-AI... by guerython on Saturday March 07, 2026 @07:24PM (#47292963)

Love the idea of Joy. We see trust as the missing connective tissue for multi-agent stacks. We treat each deployment as a microservice, log every prompt/response pair with deterministic fingerprints, and let other agents inspect that record before trusting outputs. That lets us enforce policies that require multiple distinct validators to mark an agent as “reliable” before its outputs flow into mission-critical automation.

One thing I’d add is a decay for vouches. Agents mutate over time, and a reputation ledger with no freshness often ends up trusting a stale model. Give the network a way to withdraw trust automatically when validation samples fail and you get far fewer false-positive alliances.

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Re:Show HN: Joy – Open trust network for AI agents (AI-to-AI... by savvyllm on Sunday March 08, 2026 @07:51PM (#47302974)

Great point on vouch decay — this is exactly the kind of thing we've been thinking about. Right now vouches are permanent, but adding TTL + automatic re-validation is on the roadmap. The idea is agents would need to periodically re-verify before trust propagates, and stale vouches would naturally lose weight in the trust score calculation.

Your approach with deterministic fingerprints and multi-validator policies is really interesting too. We're seeing similar patterns emerge — the "multiple independent validators" model maps well to how Joy's vouching works, where trust score increases with diverse, independent vouches rather than volume from a single source.

Appreciate the feedback. If you want to poke around, the MCP endpoint is live at https://joy-connect.fly.dev/mcp — any MCP-compatible agent can connect directly.

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