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Archlint
Architectural guardrails for coding with AI agents.
Archlint checks every edit your AI agent makes against the layer rules you declared — the instant a violation happens, still inside the loop. One Python script, stdlib only, no LLM in the hot path.
The thing that kept biting me with Claude Code wasn't bugs — it was architectural drift.
The agent adds an import that quietly couples two layers (UI reaching straight into the DB, say), the diff looks fine, tests pass, it ships. I'd have caught it in review if I were
reading every line — but not reading every line is the point of running an agent.
So I made Archlint: a PostToolUse/Stop hook that checks it in the loop. You declare your
layers in a fenced ```archlint block inside your CLAUDE.md / agent.md (which layers may import which), and after every edit the agent makes, it checks that file's imports against the rules and surfaces the violation right there — while the file's still open and fixing is cheap.
Lenient by default (hands the agent a note, and it usually self-corrects); strict mode
blocks.
- One Python file, stdlib only — no pip install, no LLM in the hot path, deterministic.
- Zero new config: rules live in the CLAUDE.md the agent already reads.
- Also a CLI (`archlint check`) for pre-commit/CI.
- Structural, not semantic — it reads the import graph, it doesn't "understand" the code. That's the deliberate limit.
Hope it helps, love to hear some feedback.
Drop-in install, zero deps, and the violation feedback is instant which is exactly what my agent loops needed. Wish I'd had this a few weeks ago when I was hunting down a circular import by hand.
About Archlint on Product Hunt
“Architectural guardrails for coding with AI agents.”
Archlint was submitted on Product Hunt and earned 0 upvotes and 2 comments, placing #118 on the daily leaderboard. Archlint checks every edit your AI agent makes against the layer rules you declared — the instant a violation happens, still inside the loop. One Python script, stdlib only, no LLM in the hot path.
Archlint was featured in Productivity (655.7k followers), Software Engineering (42.7k followers) and Developer Tools (515.5k followers) on Product Hunt. Together, these topics include over 226.8k products, making this a competitive space to launch in.
Who hunted Archlint?
Archlint was hunted by Kanhan. 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.
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