Your digital construction kit for secure, modular Postgres. Build production apps that last.
Joined March 2022
- Tweets 1,201
- Following 456
- Followers 4,050
- Likes 1,294
144 Photos and videos
Jun 4
Everyone wants smarter agents. We care more about smarter constraints.
Better models won't decide who wins. The operators who win will be the ones who can run thousands of agent actions without leaking data, breaking permissions, or quietly introducing security holes.
Intelligence is getting cheap. Trust isn't.
1/ There's a bottleneck in AI that hundreds of billions of dollars can't buy past: the very few people who can wield this technology well enough to matter.
There aren't nearly enough of them, and the entire buildout runs through them.
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Code generation isn't the moat. Engineering is.
Last week I sat on a panel at the SVB Experience Center with Sanjeev Dhanda (@GoogleDeepMind) and @abhiaiyer (@mastra) on the move from vibe coding to agentic engineering
@constructive_io @SiliconVlyBank @Kristopherfloyd
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We're at capacity for the tonights session! Couldn't be more stoked to chat about building systems that agents and humans can converge on to build trusted code with Sanjeev Dhanda (@GoogleDeepMind) and @abhiaiyer (@mastra)!
Thanks @Kristopherfloyd (Frontier Syndicate) and Joanna Zanghi (@SiliconVlyBank), and Acasia for co-hosting with @constructive_io 🚀
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Using @PlanetScale's own benchmark data. Removing the volatile and non-optimized polices, pure RLS vs. no RLS (I'm including original data for comparison)
This is what performance looks like when security is done right.
The @PlanetScale RLS benchmarks compare per-row function calls vs no RLS.
But real RLS policies don’t have to be function-based or evaluated per row. With proper design (stable conditions, InitPlan caching via subqueries, good indexes), you get near-zero overhead full index utilization.
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Interesting take on RLS from @PlanetScale — but the “per-row overhead” they highlight isn’t a limitation of RLS, it’s a consequence of how the policy is written
a thread on their take and benchmark 🧵
Apr 30
Postgres RLS sounds great in theory: embedded access control right in the database.
In practice, there's complexity in policy configuration, managing your attack surface, and performance implications.
Our latest article takes a deep dive into RLS.
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This is exactly why, and completely validates everything we do at @constructive_io because RLS is complex and must be managed or you'll make every mistake that @PlanetScale is assuming here. We solve all of these issues, and then some 🚀
Apr 30
Postgres RLS sounds great in theory: embedded access control right in the database.
In practice, there's complexity in policy configuration, managing your attack surface, and performance implications.
Our latest article takes a deep dive into RLS.
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happy to share @constructive_io just made the front page of TechDay ⚡️
We open sourced agentic-db
→ Postgres as the memory layer for AI agents
→ no more markdown hacks
→ no more stuffing context into prompts
Agents are probabilistic. Your data shouldn’t be!
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AI can write the code. Engineers have to make it secure and correct
Speaking on a panel representing @constructive_io with AI leaders from @GoogleDeepMind (Sanjeev Dhanda), @abhiaiyer (CTO, @mastra) at the SVB Experience Center on moving from vibe coding → agentic engineering ⚡️
Join us Friday if you're in SF! luma.com/mptofz1l
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Yesterday at the @postgresconf I spoke about secure-by-default, modular Postgres ⚡️
As agents start generating applications, the database becomes the trust layer.
Security can’t be a follow-up step anymore—it has to be the starting point. This is what we’re building at @constructive_io
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Had the pleasure of sitting down Greg Kemnitz and Curt Kolovson about the origin of Postgres, two of the original programmers from when it started 40 years ago! What a journey it's been and such a successful project. More importantly, I’m grateful to call them good friends.
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Apr 16
Give your agent a brain 🧠
We just open-sourced agentic-db — a Postgres knowledge base and personal CRM you can install in one command.
pgpm install agentic-db
Vector search, full-text search, fuzzy matching, spatial queries, and auto-embedding triggers. All inside Postgres.
npmjs.com/package/agentic-db
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We just open-sourced agentic-db — a Postgres knowledge base and personal CRM you can install in one command.
pgpm install agentic-db
Vector search, full-text search, fuzzy matching, spatial queries, and auto-embedding triggers. All inside Postgres.
npmjs.com/package/agentic-db
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Hosted @constructive_io Build Night #1 at @AngelList in San Francisco at @founders_cafe
Room full of builders actually shipping. Feels like the days when I first came to SF circa 2010. The energy is real! If you're building something cool, you should come to our next one.
Appreciate @Kristopherfloyd and @irinson for co-hosting this amazing community event!
More to come :)
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Build Night #1 at @AngelList’s @founders_cafe
Hosted by @constructive_io @Kristopherfloyd (Frontier Syndicate) and @irinson
Room full of AI frontier builders actually shipping. 🧵
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We're over capacity for @constructive_io's Build Night at @AngelList HQ!!
100 approved builders working across the agentic stack — agent security, orchestration, infrastructure, trust, voice, fintech agents, and autonomous systems that touch real users and real money.
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Constructive retweeted
Mar 20
I tried Modular Postgres (@constructive_io) recently and it changed how I think about database structure
Instead of piling everything into migrations:
→ you define modules
→ set dependencies
→ deploy in order
Wrote a practical intro on what I learned:
medium.com/@mitchyugan/a-pra…
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Mar 19
modular postgres 🐘
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