Dafallah Ibrahim

MCP Servers Can Borrow Your LLM

Sampling is the half of MCP nobody uses: your server asks the client's model for help — no API key, no billing, no lock-in.

Your Local LLM Isn't Dumb. Your Config Is.

Chat template mismatches, silent context truncation, and inherited sampling defaults quietly tank local model output. Most of it is fixable.

How Phone Calls Leak Into Public DNS

A researcher took over a slice of e164.arpa and began receiving call metadata — including hundreds of thousands of calls to military bases.

cargo build Executes Code You Never Read

A malicious Rust crate fired its payload during compilation. Thanks to build.rs and proc macros, cargo build runs code you never read.

Your Postgres UPDATE Rewrites Every Index

Most UPDATEs don't touch indexed columns, yet Postgres rewrites every index entry — unless a HOT update fires. One table setting decides.

The 'RAM Is Cheap' Era Just Ended

DRAM climbed 500% in a year — 128GB of DDR5 now runs $3,399. Time to learn what your services actually need.

flock: The Cron Mutex You're Not Using

Cron will start your job again while the last run is still going. Two lines with flock stop the overlap — and the lock can't go stale.

What Cloudflare Injects Into Your HTML

A nameserver switch quietly turns on response rewriting. One curl command shows every script Cloudflare added to your pages.

The Overnight Agent Loop That Got a 232x Speedup

A dev let Codex run its own benchmark loop and got a 232x kernel speedup. Here's the loop, rebuilt in plain bash.

Don't Train a Classifier. Hallucinate One.

Skip the labeled dataset: have an LLM hallucinate documents for each class, embed them, and classify by similarity. Works shockingly well.

One Log Line Costs 110KB of Disk Writes

A single systemd-journald log line causes 49KB+ of disk writes on ext4 and 110KB+ on btrfs. Here's why that's burning your SSD.

The SQLite Bug That Silently Corrupts Data

Tailscale just found a 16-year-old race condition in SQLite's WAL reset. Here is how it destroys databases and how to verify yours.