Kostas Pardalis
@cpard.bsky.social
Building https://typedef.ai | host @ https://techontherocks.show | Done some cool stuff with trinodb | ex-RudderStack | previously CEO @ Blendo
fenic 0.4.0 brings fenic and its expressive API for working with data, to agents.
With tooling becoming a catalog artifact, MCP servers and toolsets being available with just a cli command you can turn any data set you have into well curated context for your agents.
check it out!
With tooling becoming a catalog artifact, MCP servers and toolsets being available with just a cli command you can turn any data set you have into well curated context for your agents.
check it out!
fenic 0.4.0 is live: declarative tools for agents, a production-ready MCP server, and direct reads from HuggingFace plus big DX & reliability gains. 
Highlights:
Declarative tools: define function-calling tools as data (type-safe, reviewable, reusable).

Highlights:
Declarative tools: define function-calling tools as data (type-safe, reviewable, reusable).

September 9, 2025 at 9:37 PM
fenic 0.4.0 brings fenic and its expressive API for working with data, to agents.
With tooling becoming a catalog artifact, MCP servers and toolsets being available with just a cli command you can turn any data set you have into well curated context for your agents.
check it out!
With tooling becoming a catalog artifact, MCP servers and toolsets being available with just a cli command you can turn any data set you have into well curated context for your agents.
check it out!
Reposted by Kostas Pardalis
New episode: chatting with bauplan founders Jacopo Tagliabue and Ciro Greco on shipping AI with real-world data constraints.
Why listen
1. Data pipelines determine model effectiveness, far more than most teams admit.
Why listen
1. Data pipelines determine model effectiveness, far more than most teams admit.
September 8, 2025 at 2:39 PM
New episode: chatting with bauplan founders Jacopo Tagliabue and Ciro Greco on shipping AI with real-world data constraints.
Why listen
1. Data pipelines determine model effectiveness, far more than most teams admit.
Why listen
1. Data pipelines determine model effectiveness, far more than most teams admit.
Semantic join is one of Fenic’s AI-native DataFrame functions. They operate over whole tables and relationships—not just individual rows.
August 20, 2025 at 6:02 AM
Here's a bit more information on each of the new 🦊 fenic 🦊 features.
1/7 🧵
Dynamic Templating
Turn any column struct or array into a live prompt fragment. No more string concatenation hacks. You get per row, data driven prompts with minimal code, boosting relevance and reducing boilerplate.
1/7 🧵
Dynamic Templating
Turn any column struct or array into a live prompt fragment. No more string concatenation hacks. You get per row, data driven prompts with minimal code, boosting relevance and reducing boilerplate.
August 7, 2025 at 6:10 PM
Here's a bit more information on each of the new 🦊 fenic 🦊 features.
1/7 🧵
Dynamic Templating
Turn any column struct or array into a live prompt fragment. No more string concatenation hacks. You get per row, data driven prompts with minimal code, boosting relevance and reducing boilerplate.
1/7 🧵
Dynamic Templating
Turn any column struct or array into a live prompt fragment. No more string concatenation hacks. You get per row, data driven prompts with minimal code, boosting relevance and reducing boilerplate.
fenic v0.3.0 is out and it's a release I'm really excited about!
Here are a few of the things that this release is introducing.
Jinja as a column function
Robust Fuzzy Text Matching
Full Pydantic support in all semantic operators
Persistent views
More Functions & Models
Perf & DX improvements
Here are a few of the things that this release is introducing.
Jinja as a column function
Robust Fuzzy Text Matching
Full Pydantic support in all semantic operators
Persistent views
More Functions & Models
Perf & DX improvements
August 6, 2025 at 9:09 PM
fenic v0.3.0 is out and it's a release I'm really excited about!
Here are a few of the things that this release is introducing.
Jinja as a column function
Robust Fuzzy Text Matching
Full Pydantic support in all semantic operators
Persistent views
More Functions & Models
Perf & DX improvements
Here are a few of the things that this release is introducing.
Jinja as a column function
Robust Fuzzy Text Matching
Full Pydantic support in all semantic operators
Persistent views
More Functions & Models
Perf & DX improvements
Reposted by Kostas Pardalis
@steveklabnik.com Joined us on an episode where we discussed about
Why:
• Cargo & friendly errors > benchmarks
• 6-week releases > years-long committees
• How Rust united Ruby, FP & C++ devs
• Next-gen picks
and many more!
Check the episode on your favorite platform!
Why:
• Cargo & friendly errors > benchmarks
• 6-week releases > years-long committees
• How Rust united Ruby, FP & C++ devs
• Next-gen picks
and many more!
Check the episode on your favorite platform!
July 28, 2025 at 2:36 PM
@steveklabnik.com Joined us on an episode where we discussed about
Why:
• Cargo & friendly errors > benchmarks
• 6-week releases > years-long committees
• How Rust united Ruby, FP & C++ devs
• Next-gen picks
and many more!
Check the episode on your favorite platform!
Why:
• Cargo & friendly errors > benchmarks
• 6-week releases > years-long committees
• How Rust united Ruby, FP & C++ devs
• Next-gen picks
and many more!
Check the episode on your favorite platform!
Everyone’s heads down on AI these days, but please take a break and soak in some deep systems wisdom from Josh Howards.
He’s one of the folks behind R2 at Cloudflare.
After all, whatever you build in AI will sit on top of these foundations.
check @totrrocks.bsky.social for the episode link.
He’s one of the folks behind R2 at Cloudflare.
After all, whatever you build in AI will sit on top of these foundations.
check @totrrocks.bsky.social for the episode link.
June 6, 2025 at 11:30 PM
Everyone’s heads down on AI these days, but please take a break and soak in some deep systems wisdom from Josh Howards.
He’s one of the folks behind R2 at Cloudflare.
After all, whatever you build in AI will sit on top of these foundations.
check @totrrocks.bsky.social for the episode link.
He’s one of the folks behind R2 at Cloudflare.
After all, whatever you build in AI will sit on top of these foundations.
check @totrrocks.bsky.social for the episode link.
Reposted by Kostas Pardalis
Startups and new products increasingly prioritize serverless models to reduce user friction and accelerate adoption.
@philippemnoel.bsky.social from ep.12
@philippemnoel.bsky.social from ep.12
May 15, 2025 at 11:55 PM
Startups and new products increasingly prioritize serverless models to reduce user friction and accelerate adoption.
@philippemnoel.bsky.social from ep.12
@philippemnoel.bsky.social from ep.12
Reposted by Kostas Pardalis
The value proposition of formal methods becomes clear when dealing with complex distributed transactions involving multiple independent services.
Jayaprabhakar(JP) Kadarkarai from ep.5
Jayaprabhakar(JP) Kadarkarai from ep.5
May 14, 2025 at 2:51 PM
The value proposition of formal methods becomes clear when dealing with complex distributed transactions involving multiple independent services.
Jayaprabhakar(JP) Kadarkarai from ep.5
Jayaprabhakar(JP) Kadarkarai from ep.5
Reposted by Kostas Pardalis
User experience and developer interaction with complex data abstractions remain a significant challenge beyond the technical integration.
Nikhil Simha & Varant Zanoyan from ep.2
Nikhil Simha & Varant Zanoyan from ep.2
May 13, 2025 at 11:49 PM
User experience and developer interaction with complex data abstractions remain a significant challenge beyond the technical integration.
Nikhil Simha & Varant Zanoyan from ep.2
Nikhil Simha & Varant Zanoyan from ep.2
Reposted by Kostas Pardalis
Successful AI developer tools must balance synchronous co-pilot style assistance with asynchronous autonomous agent workflows.
@ivanburazin.bsky.social from ep.9
@ivanburazin.bsky.social from ep.9
May 12, 2025 at 11:39 PM
Successful AI developer tools must balance synchronous co-pilot style assistance with asynchronous autonomous agent workflows.
@ivanburazin.bsky.social from ep.9
@ivanburazin.bsky.social from ep.9
Reposted by Kostas Pardalis
Managing AI access and permissions requires careful role-based controls to prevent over-privileged AI actions in enterprise environments.
Well said, even before hashtag#MCP was as popular as today.
@ivanburazin.bsky.social from ep.9
Well said, even before hashtag#MCP was as popular as today.
@ivanburazin.bsky.social from ep.9
May 12, 2025 at 2:37 PM
Managing AI access and permissions requires careful role-based controls to prevent over-privileged AI actions in enterprise environments.
Well said, even before hashtag#MCP was as popular as today.
@ivanburazin.bsky.social from ep.9
Well said, even before hashtag#MCP was as popular as today.
@ivanburazin.bsky.social from ep.9
I had the rare opportunity to sit down and chat with someone who helped shape that story of Splunk, co-founder Erik Swan.
There's a lot to learn from him but what inspired me the most is his energy. Even after a success like Splunk, still learning and building
listen here @totrrocks.bsky.social
There's a lot to learn from him but what inspired me the most is his energy. Even after a success like Splunk, still learning and building
listen here @totrrocks.bsky.social
May 9, 2025 at 5:13 PM
I had the rare opportunity to sit down and chat with someone who helped shape that story of Splunk, co-founder Erik Swan.
There's a lot to learn from him but what inspired me the most is his energy. Even after a success like Splunk, still learning and building
listen here @totrrocks.bsky.social
There's a lot to learn from him but what inspired me the most is his energy. Even after a success like Splunk, still learning and building
listen here @totrrocks.bsky.social
Incremental materialization has stumped the industry for decades.
Epsio led by Gilad , is changing that: product-first, real-world incremental views.
If real-time data infra matters to you, check out my chat with Gilad on @totrrocks.bsky.social
Epsio led by Gilad , is changing that: product-first, real-world incremental views.
If real-time data infra matters to you, check out my chat with Gilad on @totrrocks.bsky.social
April 25, 2025 at 5:13 PM
Incremental materialization has stumped the industry for decades.
Epsio led by Gilad , is changing that: product-first, real-world incremental views.
If real-time data infra matters to you, check out my chat with Gilad on @totrrocks.bsky.social
Epsio led by Gilad , is changing that: product-first, real-world incremental views.
If real-time data infra matters to you, check out my chat with Gilad on @totrrocks.bsky.social
Reposted by Kostas Pardalis
Just came across this! "transaction isolation in the presence of IVM remains underspecified." I was literally talking about this with @frankmcsherry.bsky.social 6 hours ago.
Streaming Democratized: Ease Across the Latency Spectrum with Delayed View Semantics and Snowflake Dynamic Tables
Streaming data pipelines remain challenging and expensive to build and maintain, despite significant advancements in stronger consistency, event time semantics, and SQL support over the last decade. P...
arxiv.org
April 17, 2025 at 1:12 AM
Just came across this! "transaction isolation in the presence of IVM remains underspecified." I was literally talking about this with @frankmcsherry.bsky.social 6 hours ago.
Lakekeeper is an open source data catalog built on the Apache Iceberg REST catalog API.
If data infrastructure drives you, check out the project and catch Viktor Kessler's insights on the latest @TotrRocks episode!
If data infrastructure drives you, check out the project and catch Viktor Kessler's insights on the latest @TotrRocks episode!
March 24, 2025 at 4:45 PM
Lakekeeper is an open source data catalog built on the Apache Iceberg REST catalog API.
If data infrastructure drives you, check out the project and catch Viktor Kessler's insights on the latest @TotrRocks episode!
If data infrastructure drives you, check out the project and catch Viktor Kessler's insights on the latest @TotrRocks episode!
I'm always excited to chat with @apurvamehta.com about what @responsive.dev is building.
Streaming and real time as terms are being constantly reinvented as the market needs change rapidly, and Apurva is one of the best to talk about that.
Check the conversation here: techontherocks.show/15
Streaming and real time as terms are being constantly reinvented as the market needs change rapidly, and Apurva is one of the best to talk about that.
Check the conversation here: techontherocks.show/15
Tech on the Rocks | Reinventing Stream Processing: From LinkedIn to Responsive with Apurva Mehta
SummaryIn this episode, Apurva Mehta, co-founder and CEO of Responsive, recounts his extensive journey in stream processing—from his early work at LinkedIn and Confluent to his current venture at R...
techontherocks.show
March 14, 2025 at 4:51 PM
I'm always excited to chat with @apurvamehta.com about what @responsive.dev is building.
Streaming and real time as terms are being constantly reinvented as the market needs change rapidly, and Apurva is one of the best to talk about that.
Check the conversation here: techontherocks.show/15
Streaming and real time as terms are being constantly reinvented as the market needs change rapidly, and Apurva is one of the best to talk about that.
Check the conversation here: techontherocks.show/15
We'll be hosting another event at our offices in San Mateo. We want to bring together people who are interested in data and infra, from systems engineers who build data platforms, AI engineers, VCs and everything in between.
Connect and have fun while we learn from each other.
lu.ma/2hc1qm1v
Connect and have fun while we learn from each other.
lu.ma/2hc1qm1v
Peninsula Data Happy Hour · Luma
🔥 An Unmissable Evening of Data & Magic! 🔥
🎉 Back by popular demand, it's time for the March edition of our Peninsula Data Happy Hour! This time we've got…
lu.ma
March 14, 2025 at 4:36 PM
We'll be hosting another event at our offices in San Mateo. We want to bring together people who are interested in data and infra, from systems engineers who build data platforms, AI engineers, VCs and everything in between.
Connect and have fun while we learn from each other.
lu.ma/2hc1qm1v
Connect and have fun while we learn from each other.
lu.ma/2hc1qm1v
Reposted by Kostas Pardalis
New episode: “Semantic Layers: The Missing Link Between AI and Data” with @jayatillake.bsky.social .
We discuss how semantic layers bridge raw data and AI, achieving 100% accuracy for natural language queries, and what’s next for LLM-powered data pipelines.
🎧 https://techontherocks.show/14 🎧
We discuss how semantic layers bridge raw data and AI, achieving 100% accuracy for natural language queries, and what’s next for LLM-powered data pipelines.
🎧 https://techontherocks.show/14 🎧
Tech on the Rocks | Semantic Layers: The Missing Link Between AI and Data with David Jayatillake from Cube
In this episode, we chat with David Jayatillake, VP of AI at Cube, about semantic layers and their crucial role in making AI work reliably with data. We explore how semantic layers act as a bridge ...
techontherocks.show
February 20, 2025 at 7:19 PM
New episode: “Semantic Layers: The Missing Link Between AI and Data” with @jayatillake.bsky.social .
We discuss how semantic layers bridge raw data and AI, achieving 100% accuracy for natural language queries, and what’s next for LLM-powered data pipelines.
🎧 https://techontherocks.show/14 🎧
We discuss how semantic layers bridge raw data and AI, achieving 100% accuracy for natural language queries, and what’s next for LLM-powered data pipelines.
🎧 https://techontherocks.show/14 🎧
We will be hosting at our offices another Peninsula Data Happy Hour.
This time we will have tacos, amazing people to connect with but also talks from Tomasz Tunguz, Tobiko Data and our own Rohit.
Register here 👉 lu.ma/dm24afr0
This time we will have tacos, amazing people to connect with but also talks from Tomasz Tunguz, Tobiko Data and our own Rohit.
Register here 👉 lu.ma/dm24afr0
Peninsula Data Happy Hour · Luma
🎉 Let's kick off 2025 in style!
Join us at typedef's cozy San Mateo office (just a short stroll from Caltrain) for an unforgettable evening filled with tacos,…
lu.ma
January 22, 2025 at 7:08 PM
We will be hosting at our offices another Peninsula Data Happy Hour.
This time we will have tacos, amazing people to connect with but also talks from Tomasz Tunguz, Tobiko Data and our own Rohit.
Register here 👉 lu.ma/dm24afr0
This time we will have tacos, amazing people to connect with but also talks from Tomasz Tunguz, Tobiko Data and our own Rohit.
Register here 👉 lu.ma/dm24afr0
I always wondered why PG’s text indexing and search is not enough.
I finally got some good answers on that and many other questions about search in databases from Phillipe, co-founder and CEO of ParadeDB.
Great conversation and many insights on the future of search technologies
I finally got some good answers on that and many other questions about search in databases from Phillipe, co-founder and CEO of ParadeDB.
Great conversation and many insights on the future of search technologies
New episode!
We talked with Philippe Noël about building ParadeDB, an exciting Elasticsearch alternative built on Postgres that offers fast full-text search and analytics with zero ETL.
Search is becoming the primary interface for data-heavy applications - and AI.
We talked with Philippe Noël about building ParadeDB, an exciting Elasticsearch alternative built on Postgres that offers fast full-text search and analytics with zero ETL.
Search is becoming the primary interface for data-heavy applications - and AI.
January 17, 2025 at 5:09 AM
I always wondered why PG’s text indexing and search is not enough.
I finally got some good answers on that and many other questions about search in databases from Phillipe, co-founder and CEO of ParadeDB.
Great conversation and many insights on the future of search technologies
I finally got some good answers on that and many other questions about search in databases from Phillipe, co-founder and CEO of ParadeDB.
Great conversation and many insights on the future of search technologies
Make sure you check the conversation with @davidmytton.social on TotR. He has some amazing stories to tell about observability and why it's so hard, security in a world where AI is turning everyone into a scraper and dev tooling.
Check the conversation on your favorite podcast platform!
Check the conversation on your favorite podcast platform!
Join us at another episode of Tech on the Rocks, this time with @davidmytton.social of Arcjet. We talk about security as code, security in a world of AI and dev tooling.
Check the episode here: https://buff.ly/4ggWGeO
Check the episode here: https://buff.ly/4ggWGeO
December 19, 2024 at 11:55 PM
Make sure you check the conversation with @davidmytton.social on TotR. He has some amazing stories to tell about observability and why it's so hard, security in a world where AI is turning everyone into a scraper and dev tooling.
Check the conversation on your favorite podcast platform!
Check the conversation on your favorite podcast platform!
Do you have a favorite font that you are using for your terminal?
November 23, 2024 at 7:12 PM
Do you have a favorite font that you are using for your terminal?
I had a lot of fun chatting with Roy about his experience during the early days of AWS and being part of the Meta teams training LLMs.
Having experienced all this evolution of the industry is rare.
You can listen to our conversation here: techontherocks.show/8
Having experienced all this evolution of the industry is rare.
You can listen to our conversation here: techontherocks.show/8
Tech on the Rocks | Evolving Data Infrastructure for the AI Era: AWS, Meta, and Beyond with Roy Ben-Alta
In this episode, we chat with Roy Ben-Alta, co-founder of Oakminer AI and former director at Meta AI Research, about his fascinating journey through the evolution of data infrastructure and AI. We ...
techontherocks.show
November 22, 2024 at 6:36 PM
I had a lot of fun chatting with Roy about his experience during the early days of AWS and being part of the Meta teams training LLMs.
Having experienced all this evolution of the industry is rare.
You can listen to our conversation here: techontherocks.show/8
Having experienced all this evolution of the industry is rare.
You can listen to our conversation here: techontherocks.show/8