Posts about typescript

September 24, 2026

18 min read

OWASP Top 10 for LLMs 2026 and the Agentic Top 10, with Code (and What I Actually Run in Production)

Security AI OWASP Agents MCP Laravel

Typographic cover: the word OWASP above a 2025 → 2026 diff, - LLM06 excessive agency in red and + LLM03 excessive agency in green

September 24, 2026

11 min read

RFC, CURP, CLABE and NSS: the Mexican ID Validation Algorithms, Explained with Worked Examples

Mexico Validation TypeScript Algorithms Fintech

Typographic cover: the word RFC above a diff, GODE561231GR with a missing check digit in red and GODE561231GR8 in green, and the sum 1026 mod 11 = 3, 11 − 3 = 8

September 13, 2026

19 min read

WhatsApp API, October 1: What Changes in Your Code When Meta Starts Billing Service Messages

WhatsApp Costs Pricing Webhooks TypeScript Backend

Typographic cover: WhatsApp Cloud API and a two-line diff where pricing.type changes from free_customer_service to regular

11 min read

The Temporal API Ships Enabled in Node 26: Stop Fighting With Date

JavaScript Temporal Node.js Dates TypeScript Migration

A cracked brass pocket watch shedding gears on the left, with a stream of particles flowing toward concentric rings of blue light on the right

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