fp.

What's a Foreigner?

https://lucumr.pocoo.org/2025/9/14/whats-an-foreigner/

1•Bogdanp•4m ago•0 comments

AI Powered Memory Training Games – BrainFit

https://apps.apple.com/us/app/memory-training-games-brainfit/id6751512104

1•wabyilmaz•10m ago•1 comments

macOS Tahoe is certified Unix 03 [pdf]

https://www.opengroup.org/openbrand/certificates/1223p.pdf

3•john_alan•11m ago•0 comments

Show HN: Toki Gallery – A Curated Collection of Digital Clocks

https://toki-gallery.vercel.app/

1•tmk-st•11m ago•0 comments

Show HN: Ghread – Generate beautiful GitHub README profiles instantly

https://github.com/tonycletus/ghread

1•omojo•15m ago•1 comments

Show HN: PipelinePlus – plug-and-play MediatR pipeline behaviors for .NET

https://github.com/ilkanozbek/PipelinePlus

1•ilkanozbek•16m ago•0 comments

Black Swan and Black Chickens

https://w.ouzu.im/aweb/black-chicken

1•dsign•19m ago•0 comments

Mote: An Interactive Ecosystem Simulation – Peter Whidden [video]

https://www.youtube.com/watch?v=Hju0H3NHxVI

1•freetonik•22m ago•0 comments

Every Image You've Ever Seen Can Come from This [video]

https://www.youtube.com/watch?v=oiPV14RGLAg

1•kuberwastaken•30m ago•0 comments

Ask HN: Is GPT-5 a regression, or is it just me?

2•technocratius•34m ago•1 comments

The Ghost and the Princess

https://www.laphamsquarterly.org/states-mind/ghost-and-princess

2•nis0s•38m ago•0 comments

Zest namespaces, store tags after payloads, go allocation probe

https://www.scattered-thoughts.net/log/0054/

1•blenderob•39m ago•0 comments

Fukushima Insects Tested for Cognition

https://news.cnrs.fr/articles/fukushima-insects-tested-for-cognition

2•nis0s•40m ago•0 comments

Show HN: Kodosumi – Open-source runtime for AI agents

https://www.kodosumi.io/

2•Padierfind•41m ago•0 comments

Osteo-Odonto-Keratoprosthesis

https://en.wikipedia.org/wiki/Osteo-odonto-keratoprosthesis

5•thunderbong•42m ago•1 comments

A third of UK firms using 'bossware' to monitor workers' activity

https://www.theguardian.com/world/2025/sep/14/uk-firms-bossware-monitor-workers-activity

4•n1b0m•47m ago•0 comments

Apple Is Finally a Carmaker

https://sixcolors.com/post/2025/09/apple-is-finally-a-carmaker/

2•tosh•48m ago•0 comments

What's New in Java 25

https://pvs-studio.com/en/blog/posts/java/1284/

1•0x54MUR41•49m ago•0 comments

War on Cancer: Camcelled

https://www.nytimes.com/2025/09/14/magazine/cancer-research-grants-funds-trump.html

2•Anon84•49m ago•0 comments

JEP 523: Make G1 the Default Garbage Collector in All Environments

https://openjdk.org/jeps/523

2•0x54MUR41•50m ago•0 comments

Ran ClaudeCode in a While Loop to Clone Itself

https://old.reddit.com/r/ClaudeCode/comments/1ngmyqq/i_ran_claudecode_in_while_loop_and_asked_it_to/

1•faangguyindia•50m ago•0 comments

Skill Issue Acceptance

https://mtende.blog/skill-issue-acceptance

2•sonderotis•1h ago•0 comments

Migrating to React Native's New Architecture

https://shopify.engineering/react-native-new-architecture

1•samuel246•1h ago•0 comments

"Dear ImGui" Becomes "Dear User, " with LLMs

https://blog.igerman.cc/dear-user

4•igmn•1h ago•0 comments

Hey Apple: cropping is not "optical" zoom

https://www.dpreview.com/opinion/9528220638/apple-optical-zoom-advertising-smartphones

1•kristianp•1h ago•0 comments

I Built a Prompt Injection Validator API

https://patrei.com

2•neiltalap•1h ago•1 comments

Visualize Crowds – enter a number to see the corresponding crowd size

https://www.visualizecrowds.com/

1•felineflock•1h ago•1 comments

Show HN: Borderlands 4 SHiFT codes aggregator, updated daily

https://borderlandsshiftcodes.org/

1•DearestZ•1h ago•0 comments

Ultra-flat optic pushes beyond what was previously thought possible

https://phys.org/news/2025-09-ultra-flat-optic-previously-thought.html

2•rbanffy•1h ago•1 comments

Show HN: Rallies – Investment assistant backed by real time data

1•rallies•1h ago•1 comments

Open in hackernews

I Built a Prompt Injection Validator API

https://patrei.com

2•neiltalap•1h ago

Comments

neiltalap•1h ago

I have built a production-ready validator API to help stop prompt-injection, jailbreaks, unsafe tool calls, and system prompt leaks.

Endpoints: POST /validate and POST /validate_output

Actions: pass, block, sanitize, escalate

Check it out if you want to, I would be grateful for any feedback support@patrei.com

Docs: https://backend.patrei.com (RapidAPI listing is just for onboarding)

Happy to answer questions or dive into the design choices in the comments.