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Show HN: Medinilla – an OCPP compliant .NET back end (partially done)

https://github.com/eliodecolli/Medinilla
1•rhcm•1m ago•0 comments

How Does AI Distribute the Pie? Large Language Models and the Ultimatum Game

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6157066
1•dkga•2m ago•1 comments

Resistance Infrastructure

https://www.profgalloway.com/resistance-infrastructure/
2•samizdis•6m ago•0 comments

Fire-juggling unicyclist caught performing on crossing

https://news.sky.com/story/fire-juggling-unicyclist-caught-performing-on-crossing-13504459
1•austinallegro•7m ago•0 comments

Restoring a lost 1981 Unix roguelike (protoHack) and preserving Hack 1.0.3

https://github.com/Critlist/protoHack
2•Critlist•8m ago•0 comments

GPS and Time Dilation – Special and General Relativity

https://philosophersview.com/gps-and-time-dilation/
1•mistyvales•12m ago•0 comments

Show HN: Witnessd – Prove human authorship via hardware-bound jitter seals

https://github.com/writerslogic/witnessd
1•davidcondrey•12m ago•1 comments

Show HN: I built a clawdbot that texts like your crush

https://14.israelfirew.co
2•IsruAlpha•14m ago•1 comments

Scientists reverse Alzheimer's in mice and restore memory (2025)

https://www.sciencedaily.com/releases/2025/12/251224032354.htm
1•walterbell•17m ago•0 comments

Compiling Prolog to Forth [pdf]

https://vfxforth.com/flag/jfar/vol4/no4/article4.pdf
1•todsacerdoti•18m ago•0 comments

Show HN: Cymatica – an experimental, meditative audiovisual app

https://apps.apple.com/us/app/cymatica-sounds-visualizer/id6748863721
1•_august•19m ago•0 comments

GitBlack: Tracing America's Foundation

https://gitblack.vercel.app/
2•martialg•19m ago•0 comments

Horizon-LM: A RAM-Centric Architecture for LLM Training

https://arxiv.org/abs/2602.04816
1•chrsw•20m ago•0 comments

We just ordered shawarma and fries from Cursor [video]

https://www.youtube.com/shorts/WALQOiugbWc
1•jeffreyjin•21m ago•1 comments

Correctio

https://rhetoric.byu.edu/Figures/C/correctio.htm
1•grantpitt•21m ago•0 comments

Trying to make an Automated Ecologist: A first pass through the Biotime dataset

https://chillphysicsenjoyer.substack.com/p/trying-to-make-an-automated-ecologist
1•crescit_eundo•25m ago•0 comments

Watch Ukraine's Minigun-Firing, Drone-Hunting Turboprop in Action

https://www.twz.com/air/watch-ukraines-minigun-firing-drone-hunting-turboprop-in-action
1•breve•26m ago•0 comments

Free Trial: AI Interviewer

https://ai-interviewer.nuvoice.ai/
1•sijain2•26m ago•0 comments

FDA intends to take action against non-FDA-approved GLP-1 drugs

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21•randycupertino•27m ago•10 comments

Supernote e-ink devices for writing like paper

https://supernote.eu/choose-your-product/
3•janandonly•30m ago•0 comments

We are QA Engineers now

https://serce.me/posts/2026-02-05-we-are-qa-engineers-now
1•SerCe•30m ago•0 comments

Show HN: Measuring how AI agent teams improve issue resolution on SWE-Verified

https://arxiv.org/abs/2602.01465
2•NBenkovich•30m ago•0 comments

Adversarial Reasoning: Multiagent World Models for Closing the Simulation Gap

https://www.latent.space/p/adversarial-reasoning
1•swyx•31m ago•0 comments

Show HN: Poddley.com – Follow people, not podcasts

https://poddley.com/guests/ana-kasparian/episodes
1•onesandofgrain•39m ago•0 comments

Layoffs Surge 118% in January – The Highest Since 2009

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13•karakoram•39m ago•0 comments

Papyrus 114: Homer's Iliad

https://p114.homemade.systems/
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DicePit – Real-time multiplayer Knucklebones in the browser

https://dicepit.pages.dev/
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Turn-Based Structural Triggers: Prompt-Free Backdoors in Multi-Turn LLMs

https://arxiv.org/abs/2601.14340
2•PaulHoule•41m ago•0 comments

Show HN: AI Agent Tool That Keeps You in the Loop

https://github.com/dshearer/misatay
2•dshearer•42m ago•0 comments

Why Every R Package Wrapping External Tools Needs a Sitrep() Function

https://drmowinckels.io/blog/2026/sitrep-functions/
1•todsacerdoti•42m ago•0 comments
Open in hackernews

Show HN: PolyMCP – open-source toolkit to expose MCP tools and run agents

1•justvugg•2w ago
Hi HN — I’m the author of PolyMCP (MIT).

PolyMCP is a toolkit/runtime for the Model Context Protocol (MCP): it helps you build MCP tool servers (expose Python functions as tools over HTTP/stdio), connect multiple MCP servers, and run agents that orchestrate them with deploy-friendly guardrails.

Latest update is mostly reliability work: - OAuth2 (RFC 6749): client credentials + authorization code flows, refresh handling, basic retries - Docker executor cleanup fixes (Windows + Unix) - Better skills/tool matching + stdio server support - CodeAgent async handling + error recovery - Health checks, structured logging, and rate limiting

Repo: https://github.com/poly-mcp/Polymcp

If you’ve deployed MCP/agent systems: what tends to bite you first (auth, rate limits, observability, sandboxing)? I’m especially interested in OAuth2 edge cases and container lifecycle issues.

Comments

kxbnb•2w ago
Nice work - the "deploy-friendly guardrails" framing resonates. Too many MCP tools assume local dev only.

To your question about what bites first: in our experience at keypost.ai, the order is usually:

1. *Auth* - OAuth token refresh edge cases, especially when agents run long tasks that span token expiry 2. *Rate limits* - not having them, then having them but too coarse (per-tool vs per-endpoint vs per-argument) 3. *Observability* - specifically, correlating agent intent with actual tool calls when debugging why something failed 4. *Sandboxing* - usually comes up after the first "oops" moment

One pattern we've found useful: separating "can this identity call this tool" (auth) from "should this specific call be allowed" (policy). They're often conflated but have different failure modes and different owners (security team vs product team).

Curious how you're handling policy in PolyMCP - is it config-driven or code-driven?

justvugg•1w ago
Sorry for the late response. Thanks a lot for your suggestion! Policy now: config-driven allow/deny lists + metadata constraints + budgets/redaction. Auth separate (OAuth2 auto-refresh). Planning hooks.

How do you do policy at keypost.ai?