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ProgressGate
Jev-powered circuit breaker for spinning AI agents
ProgressGate uses TypeSafe Jev to detect when an AI agent is taking different actions without making real progress, then returns CONTINUE, WARN, REPLAN, or HALT decisions before the next model call.
Built this after getting early access to TypeSafe Jev.
One agent failure mode kept bothering me: the agent is clearly stuck, but it does not look stuck.
It checks logs. Tries another path. Changes a parameter. Switches tools.
Every action looks different, but they all depend on the same broken assumption. ProgressGate sits between agent steps and the next model call.
Jev makes the semantic judgments:
- is the agent actually making progress?
- is this a genuinely new strategy?
- is it still acting on contradicted assumptions?
- is the situation getting worse?
Then deterministic code decides whether to CONTINUE, WARN, REPLAN, or HALT.
I also ran a small end-to-end benchmark before launching.
Across 20 deliberately stuck scenarios:
115 -> 80 model calls
151.7K -> 104.9K tokens
That was 30.4% fewer model calls and 30.8% fewer tokens.
The largest reduction I saw was:
12 -> 4 model calls
19.9K -> 5.1K tokens
For the healthy control set, 20/20 runs still completed and 0/20 were falsely HALTed.
These are benchmark results from one model and deterministic simulated tools, not production claims.
It is open source and very much v0.1.
Would especially love agent traces where it makes the wrong call.
About ProgressGate on Product Hunt
“Jev-powered circuit breaker for spinning AI agents”
ProgressGate was submitted on Product Hunt and earned 3 upvotes and 2 comments, placing #61 on the daily leaderboard. ProgressGate uses TypeSafe Jev to detect when an AI agent is taking different actions without making real progress, then returns CONTINUE, WARN, REPLAN, or HALT decisions before the next model call.
On the analytics side, ProgressGate competes within Open Source, Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how ProgressGate performed against the three products that launched closest to it on the same day.
Who hunted ProgressGate?
ProgressGate was hunted by Ashutosh Mathore. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of ProgressGate including community comment highlights and product details, visit the product overview.
Ashutosh Mathore