Constructive

Your digital construction kit for secure, modular Postgres. Build production apps that last.

[Dan Lynch @danlynch]

Trust is the new bottleneck

[Constructive @constructive_io]

Our CEO @danlynch opened FRC #26 with Secure-by-Default Postgres for Agents.

Agents are database users now. Authorization has to live in the database, not the app.

Thanks @frontiersynd @Kristopherfloyd @pebble_bed @danielchalef @zep_ai @shulynnliu @shagarw21

[Constructive @constructive_io]

Hundreds of speculative queries a second, from a user that isn't human. That's the workload. Authorization has to live in the database, not the app. Proud to sponsor FRC #26 with @frontiersynd @pebble_bed https://t.co/cHByRzzgfg

[the frontier syndicate @frontiersynd]

Your next database user won't be a human. It'll be an agent firing off hundreds of queries a second.

@shulynnliu and @shagarw21 of @BerkeleySky made the case at FRC #26 at @pebble_bed: agents don't query, they speculate. Schemas, samples, partial plans, retries, all in parallel.

On BIRD, more attempts meant better answers. Across 50 parallel attempts, most of the work was redundant. Agents already create ~20x more branches and ~50x more rollbacks than humans.

So the database has to change. Probes instead of queries. Satisficers instead of optimizers. Branching storage built for agents.

Thanks to @constructive_io for sponsoring.

[Constructive @constructive_io]

Tech Week in SF was a blast! Happy to co-host the event with an incredible group of researchers

[the frontier syndicate @frontiersynd]

Memory layer or a whole new database? We spent FRC #26 arguing about it 🧠🗄️

@danielchalef (@zep_ai) made the case that context is production infrastructure: if your agent can't trust what it remembers, nothing else matters.

@shulynnliu and @shagarw21 brought their CIDR '26 paper from Berkeley Sky. Agents don't really query, they speculate: tons of redundant, exploratory probes. So build the database for the agent first.

Then the room fought over whether those are the same problem. No consensus. Exactly how we like it.

Huge thanks to @constructive_io and @danlynch for sponsoring and @pebble_bed + @nicilevv for hosting 🙏

Great to have @tjskhot @yumi_aw @ryanorban @ezrwolf @damnventures and many other regulars in the room!

[the frontier syndicate @frontiersynd]

Your agent's memory is rotting and it doesn't know it.

@danielchalef of @zep_ai walked through this at FRC #26 at @pebble_bed: enterprises now hold agent context to the same bar as every other database. Provenance. Access control. Invalidation when facts go stale.

Commercial graph DBs weren't built for millions of mostly idle small graphs. So Zep built Konig. 20M+ graphs in production, sub-100ms retrieval.

Context isn't a prompt trick. It's production infrastructure.

Thanks @constructive_io for sponsoring and @Techweek_ / @a16z for the SF Tech Week slot.

[Constructive @constructive_io]

Tonight for SF Tech Week, Constructive is co-hosting with @frontiersynd + @pebble_bed. Come meet our founder @danlynch ⚡️

Agents in Production: State, Security, and the Data Layer.

Zep/Graphiti + @UCBerkeley Sky Lab on memory, permissions, and agent-first data systems.

[Dan Lynch @danlynch]

What happens when AI agents become database users?

I’m co-hosting a16z SF Tech Week dinner + research discussion with @pebble_bed, @constructive_io & @frontiersynd

Join Zep’s CEO + UC Berkeley researchers to dig into agent memory, security & data systems.

https://t.co/4wnUDNmVjX

[Constructive @constructive_io]

Software and culture in San Francisco ⚡️

Honored to contribute to Illuminate and the Grace Window project 🙏🏻

We <3 SF

[Constructive @constructive_io]

better tests, better agentic loops for postgres development https://t.co/FXfRhcqKZc

[Dan Lynch @danlynch]

pgsql-test: Real Postgres Testing for Faster Development Loops

https://t.co/jPzvyJjxu5

[Dan Lynch @danlynch]

Grace window in San Francisco ⚡️music by Tim Weed

@IlluminatedArts @nusalt @constructive_io

[Dan Lynch @danlynch]

hey SF! come to the Grace Cathedral 8pm Sept 21st when we open to shoot the lasers

pumped about the @constructive_io software collaboration with @nusalt and @IlluminatedArts 🫶

[PostgresConf @postgresconf]

Today at 2:30pm ET, Dan Lynch joins the Postgres community to build a testable Postgres workflow for AI coding agents live.
Register: https://t.co/xj85pU2vPM

[PostgresConf @postgresconf]

In case you missed it, Closing the Loop: Modular, Testable Postgres for AI Agents with Dan Lynch is now available on YouTube.

Watch here:
https://t.co/71Db7p4QvR

[Dan Lynch @danlynch]

The DseWiki story isn't just a browser-access problem. It's a where does authority live problem.

Those agents were supposed to have read access to the internet, not write access. They found a path around that boundary because their authority was being constrained by the environment rather than represented as a first-class principal all the way down the stack.

That's the opposite assumption behind the architecture we're building into @constructive_io 🧵

[Dan Lynch @danlynch]

and the bottleneck moves to trust

[Dan Lynch @danlynch]

To show appreciation for what @ElectricSQL built with PGlite, we're launching a pglite test framework and integrated it with pgpm :)

We built pglite-test to run real migrations, triggers, RLS policies, roles, and pgvector entirely inside your Node test runner with PGlite.

No Docker. No server. No CI services. Just pnpm test.

⚡️ https://t.co/8J0RzG8tNC

@constructive_io

[Dan Lynch @danlynch]

Happy 4th from San Francisco!

[Dan Lynch @danlynch]

It's been an honor to contribute a small part to the 7x7 Summer of Awe installation from @IlluminatedArts

Working with @nusalt on hardware and @constructive_io on software, we created the "Awepad" powering the laser show... and watching art, technology, and the city come together has been incredibly rewarding

[Dan Lynch @danlynch]

In San Francisco for Deep Tech Week?

Join us tonight for:

🚀 Build Night: The Data Layer for Agentic Apps

Hosted by @pgEdgeInc, @constructive_io, @AngelList, and Frontier Syndicate.