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Optional static type-checking for JavaScript.

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Claude Code Custom System Prompts in 2026: Overriding Defaults, Appending Instructions, and What You Cannot Change

Claude Code Custom System Prompts in 2026: Overriding Defaults, Appending Instructions, and What You Cannot Change

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13 min read
When agents invent APIs — make grep-first a merge gate

When agents invent APIs — make grep-first a merge gate

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4 min read
EventBridge Scheduler time zone: cron at local time

EventBridge Scheduler time zone: cron at local time

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16 min read
Accepting eSewa and Khalti in Node.js: the redirect is not the payment

Accepting eSewa and Khalti in Node.js: the redirect is not the payment

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8 min read
Sending website form entries to Asana, Pipedrive and other tools: OAuth lessons

Sending website form entries to Asana, Pipedrive and other tools: OAuth lessons

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5 min read
OmniChat Harness: Multi-Provider Agent Harness & Orchestration Framework with MCP

OmniChat Harness: Multi-Provider Agent Harness & Orchestration Framework with MCP

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1 min read
Every typed GraphQL error came back as "Internal server error" because graphql was loaded twice

Every typed GraphQL error came back as "Internal server error" because graphql was loaded twice

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4 min read
Our campaign layout awaits one thing, the URL, and the header streams in behind it

Our campaign layout awaits one thing, the URL, and the header streams in behind it

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6 min read
Six predicates in this codebase are written twice, once in TypeScript and once in SQL

Six predicates in this codebase are written twice, once in TypeScript and once in SQL

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7 min read
189 exported symbols in our desktop app, 14 that nothing imports, and one of them is a feature with no button

189 exported symbols in our desktop app, 14 that nothing imports, and one of them is a feature with no button

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7 min read
Your location join is copying salaries across cities

Your location join is copying salaries across cities

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6 min read
Build a WhatsApp Order-Status Bot in an Afternoon: Two Webhooks and One API

Build a WhatsApp Order-Status Bot in an Afternoon: Two Webhooks and One API

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7 min read
A whole second interview format cost us two columns, one CHECK constraint and a 312-byte migration

A whole second interview format cost us two columns, one CHECK constraint and a 312-byte migration

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4 min read
Account deletion was clearing two cache keys the app had stopped writing, and the test that caught it reads source code

Account deletion was clearing two cache keys the app had stopped writing, and the test that caught it reads source code

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5 min read
Why "sent" isn't "delivered": tracking transactional email in Node.js with webhooks

Why "sent" isn't "delivered": tracking transactional email in Node.js with webhooks

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5 min read
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