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NodeXLoop — Agent Loop DevTools
Debug AI agents like you debug code
A visual debugger for AI agent loops, inside VS Code. Build Agent → tool → critic → retry → gate → test → approve on a canvas, run it node-by-node with breakpoints, and see exactly which call the guard blocked and why. The graph is aloop.yaml next to your code, so it reviews in the same PR. Axiom guard on by default: a stalled critic loop drops from 20 model calls to 6, a prompt injection costs 0. 37 templates, org review (local preview), audit export. Free on the Marketplace and Open VSX
Hello PH :) Most agent tooling looks like n8n: Salesforce → Gmail → Slack. That's the wrong shape for what agent loops actually look like — Agent → tool → critic → retry → gate → code change → test → approve. NodeXLoop is built for that shape specifically, as a VS Code extension that lives next to your code instead of a separate dashboard.
The part I'd genuinely like feedback on: every graph runs behind an Axiom guard by default, which rules PASS/WARN/BLOCK on every model call before it moves. Measured against the built app, not claimed: a critic loop that's stopped improving goes from 20 model calls to 6 with the guard on; a prompt-injection input costs 0 calls; a loop that's genuinely still improving is untouched (12 calls either way). I'm not going to pretend it's flawless — per-node runtime permissions are currently recorded and audited, not yet enforced by the runtime, and that's stated plainly in the README rather than glossed over.
Free, install from the Marketplace or Open VSX, or grab the .vsix directly. Would love your hardest questions — especially "what happens when the guard is wrong."
About NodeXLoop — Agent Loop DevTools on Product Hunt
“Debug AI agents like you debug code”
NodeXLoop — Agent Loop DevTools was submitted on Product Hunt and earned 1 upvotes and 1 comments, placing #118 on the daily leaderboard. A visual debugger for AI agent loops, inside VS Code. Build Agent → tool → critic → retry → gate → test → approve on a canvas, run it node-by-node with breakpoints, and see exactly which call the guard blocked and why. The graph is aloop.yaml next to your code, so it reviews in the same PR. Axiom guard on by default: a stalled critic loop drops from 20 model calls to 6, a prompt injection costs 0. 37 templates, org review (local preview), audit export. Free on the Marketplace and Open VSX
On the analytics side, NodeXLoop — Agent Loop DevTools competes within Productivity, Developer Tools and Artificial Intelligence — topics that collectively have 1.7M followers on Product Hunt. The dashboard above tracks how NodeXLoop — Agent Loop DevTools performed against the three products that launched closest to it on the same day.
Who hunted NodeXLoop — Agent Loop DevTools?
NodeXLoop — Agent Loop DevTools was hunted by Tony. 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 NodeXLoop — Agent Loop DevTools including community comment highlights and product details, visit the product overview.
Tony