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Updated: 12 min 9 sec ago

Show HN: RipStop – Git guardrails to reduce impact if your code agent goes wild

Tue, 05/12/2026 - 4:33am

Hi all,

RipStop is a node package implementing a set of rules that consumers can use to protect their repos from wilder actions by LLM agents. A consumer needs only a few lines of code to configure the rules they wish to apply. Example rules: no PII in commits, no Git actions that interfere with the Git history and thus might impact your ability to recover from problems.

I built this for two main reasons: - in my own repos I had a few incidents - in one Claude Code erased some un-staged changes, and in another started trying to roll back some commits. - I was reflecting on why agentic development is slow on the uptake in corporate environments. One possibility is fear of the wilder actions LLMs take - so I thought it might be helpful to illustrate how to control these.

The security model is as follows: - Layer 1 - guidance to the LLM in AGENTS.md or CLAUDE.md. This is of course guidance, and gets forgotten if context rot sets in. - Layer 2 - Git controls, via hooks that get fired automatically on various actions. Higher hurdle - the LLM would need to generate very specific commands to get round these. This is the space I am aiming at. BTW we also generate a file to go into AGENTS.md to tell the agent the environment it is working in and the controls the consumer has chosen, so there is a bit of layer 1. - Layer 3 - containers with hard configuration. Not trying to go this far in this package. This is really the space the major labs are going after with cloud agents.

I think it might be useful in two domains: - People running local agents who want a little more safety - A POC for corporate controls

Feel free to look, provide commentary, and use.

Jon

Comments URL: https://news.ycombinator.com/item?id=48105699

Points: 2

# Comments: 1

Categories: Hacker News

Show HN: Java/Spring Boot Idempotency Library

Tue, 05/12/2026 - 4:23am

Idempotency4j is a Java idempotency library with pluggable storage backends and Spring Web / Spring Boot support.

This library solves the problem of ensuring that sensitive endpoints do not trigger side-effects multiple times - this is especially useful for any endpoints that handle financial operations. Currently, the library supports Spring MVC (Servlet-based) applications and MySQL and PostgreSQL with jdbc regarding storage backends. It is very simple to integrate, all that you have to do is add @Idempotent to any endpoints that need idempotency.

Full explanation of the functionalities and configuration is available in the readme of the repository. Repository : https://github.com/josipmusa/idempotency4j

I would love any feedback or review regarding the implementation - also, any recommendation is welcome.

Comments URL: https://news.ycombinator.com/item?id=48105635

Points: 1

# Comments: 0

Categories: Hacker News

Germany's Decline in Data

Tue, 05/12/2026 - 4:18am

Article URL: https://ourdeclineindata.com/

Comments URL: https://news.ycombinator.com/item?id=48105604

Points: 4

# Comments: 1

Categories: Hacker News

Yet Another Boilerplate

Tue, 05/12/2026 - 4:10am
Categories: Hacker News

Show HN: An implementation of Common Lisp in development, reached version 1.6

Tue, 05/12/2026 - 3:55am

It reached version 1.6, now it covers more than 80% of the standard. alisp ships with ASDF and is capable of loading many real-world systems, let me know if your favorite system succeeds! License is GPL3 or later, no LLMs used.

Comments URL: https://news.ycombinator.com/item?id=48105458

Points: 1

# Comments: 0

Categories: Hacker News

LLM Hallucinations in the Wild

Tue, 05/12/2026 - 3:49am

Article URL: https://arxiv.org/abs/2605.07723

Comments URL: https://news.ycombinator.com/item?id=48105415

Points: 1

# Comments: 1

Categories: Hacker News

CSS Rhythmic Sizing Module Level 1

Tue, 05/12/2026 - 3:46am

Article URL: https://www.w3.org/TR/css-rhythm-1/

Comments URL: https://news.ycombinator.com/item?id=48105400

Points: 1

# Comments: 0

Categories: Hacker News

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