Guy Fighel

Coffee is my passion ☕️, well, Software Engineering & Data too. 👨‍💻 Led Data & AI @NewRelic. Today, Angel investor & Partner @HetzVentures

[Eyal Ben Ezra @eyalbe]

most companies rolling out @claudeai code don't have a policy on it. the managed-settings file is powerful but too broad, so teams freeze.
the willow team turned what we've learned into policy ranger. free, no signup. write cc policy in minutes.

https://t.co/LfQLPcTcZO

[Hetz Ventures @HetzVentures]

Two new partners joined Hetz SPARQL program for AI/data infra founders: @AnthropicAI & @nebiusai.

Hetz Ventures is the only 🇮🇱 VC in Databricks, Snowflake, Confluent, & Grafana Labs accelerator programs for early stage.

Building? Chat with us (cc @guyfig)

[Guy Fighel @guyfig]

Finally, I can discuss a project I have been involved with for the past 2.5 years.

It completely changes how we ask business questions and how we get to the exact right answers. Today is open to everyone who is a builder in the new AI revolution.

[Nimble @nimble_search]

Announcing Nimble!

The web holds the data to help AI take the next leap, but it isn’t a database. So we built a product that makes it behave like one.

We’ve raised $75M from @NorwestVP, @databricks, and leading VCs to build a system that enables anyone to create live datasets from the web, instantly queryable by AI Agents.

[Connor Boyack 📚 @cboyack]

https://t.co/4SMw7birVU

[Hetz Ventures @HetzVentures]

Hetz Ventures is the only Israeli VC partner in this program.

If you're an early founder building data and AI intensive applications for enterprise buyers, we're your gateway with @guyfig at the wheel, and we're actively sourcing.

Learn more at https://t.co/uRzBsqEN6n

[Oren Sultan @oren_sultan]

Can LLMs reliably predict program termination?

We evaluate frontier LLMs in the International Competition on Software Verification (SV-COMP) 2025, directly competing with state-of-the-art verification systems.

@AIatMeta @HebrewU @Bloomberg @imperialcollege @ucl

@jordiae @pascalkesseli @jvanegue @HyadataLab @adiyossLC @PeterOHearn12

Paper: https://t.co/5GP6q8E87v
Website: https://t.co/HQwhl2UVLQ

🧵👇
1/n

[Hetz Ventures @HetzVentures]

Read more and apply by Feb 8:
https://t.co/oSrSgikJMr

[Hetz Ventures @HetzVentures]

🚀 10 wks w/ dedicated Confluent senior scientist
🚀 Early access to Confluent's AI infra
🚀 Product credits & support - Databricks, MongoDB, Anthropic
🚀 Exposure to Confluent ecosystem
🚀 Early-stage building agentic AI, realtime genAI, intel. automation on streaming data infra

[Hetz Ventures @HetzVentures]

Here's the reality:

Most Israeli AI startups wait 18+ months and a Series A round before accessing technical partnerships with companies like Confluent, Databricks, and Anthropic.

By then, your core architecture is already locked in.

[Guy Fighel @guyfig]

🤔 Some thoughts about Agentic Security…

API proxies, traditional proxy security models, and relying on ‘human’ identity verification and even some non human IDs for AI agents - that’s yesterday’s news in my opinion.

While teams are still busy scrambling for fixes and CISOs play eternal catch-up, the real battle is shifting to context engineering security—including securing skills/plugins.
Developers are really fast adopters, and the enterprise market is exploding with agentic code (think seamless integrations like Claude-inspired tools).

AI agents thrive on decentralized, plugin-based architectures. Tools like @LangChain , @vercel AI SDK, @Cloudflare agentic SDK or @AnthropicAI Claude code or the latest Cowork emphasize context-aware prompting and modular skills, which introduce new vuln points outside traditional perimeters.

Skills, plugins, and dynamic contexts are the new frontier—they bypass centralized proxies entirely.

#Contextengineering involves securing the “memory” and runtime data flows in agents. Skills security could mean vetting plugin ecosystems for backdoors or data leaks. A shift to governance like zero-trust at the context level makes sense—think runtime monitoring tools emerging.

We need fresh governance: decentralized checks, real-time context audits, and skill-level safeguards.

My Prediction: 2026 sees a massive pivot here. Who’s already building this?

[Hetz Ventures @HetzVentures]

Why do strong founders insist on having Israeli investors lead their seed cap table? @JudahTaub3 w/ 2 reasons:

🎯 Specialization: a seed investor who truly knows their domain.
🎯 Conviction: when there's a crisis at home, Israeli VCs show up.

Full convo: https://t.co/Exs91ynqtq

[Hetz Ventures @HetzVentures]

“To move data from A to B today, you need at least 6-7 tools.”

Shachar Meir tells it like it is on בול בדאטה 🎯 w/ @guyfig.

Why do even the best data teams still struggle, and how can founders break that cycle? Shachar shares tons of POV in the full ep: https://t.co/zgaEIPv4eK

[Hetz Ventures @HetzVentures]

"There is no line item for this.” @BM_DataDowntime on creating a new category in data observability w/ @guyfig on בול בדאטה 🎯.

Barr's advice to other founders: don't start a new category unless you must & if you do - start with the problem.

Full convo: https://t.co/AyBo82TdE6

[restate @restatedev]

We are super excited to announce a major milestone today:

open-source 𝗥𝗲𝘀𝘁𝗮𝘁𝗲 𝟭.𝟬,
early access to 𝗥𝗲𝘀𝘁𝗮𝘁𝗲 𝗖𝗹𝗼𝘂𝗱,
and our $𝟳𝗺 𝗦𝗲𝗲𝗱 𝗥𝗼𝘂𝗻𝗱, led by Redpoint Ventures.

https://t.co/SoEC4h7Iw7

Read on 👇

[TechCrunch @TechCrunch]

Restate raises $7M for its lightweight workflows-as-code platform https://t.co/FKNzWuaqCA

[Guy Fighel @guyfig]

It was my pleasure spending time with @GuyKatsovich and talk about @HetzVentures Data Program and my personal journey. 🙏

https://t.co/IVIYOQpiVR

[MongoDB @MongoDB]

Our latest “Building AI with #MongoDB” blog post is now live. The 5th in our series, this post features @SuperDuperDB, @Algomocom and Source Digital who are revolutionizing three core areas of human communication with #AI: data, language, and video. https://t.co/OoiPqyUTTY

[Bespoke @bespokeinvest]

Tesla $TSLA is currently down 9% on earnings. This could be the 3rd straight quarter with a 1-day drop of 9% on earnings. Beginning to sense a pattern.

10/19/23 (today): -9.3%
7/20/23: -9.74%
4/20/23: -9.75%

But wait. Since the close on 4/19, $TSLA shares are still up 22%.

[President Biden Archived @POTUS46Archive]

Join me as I deliver remarks on the terrorist attacks in Israel. https://t.co/dWDPcMX3zk

[Guy Fighel @guyfig]

Read my latest analysis and what it means for any #startup in the #Data or #AI space, to better prepare for the next years to come. https://t.co/2sorRHaFjL