J. Voigt joyrexus

Boris Cherny’s 10 team-sourced tips for using Claude Code

See Boris’s post: these tips come from the Claude Code team, and there’s no single “right” setup—experiment and keep what works.

1) Do more in parallel

Run 3–5 Claude sessions at once, one per task.
The team’s preferred approach is git worktree so each session has its own isolated working directory.
Some folks also keep a dedicated “analysis” worktree for log reading / BigQuery-style investigation.

2) Start complex tasks in plan mode

This is a summary of and reference for a few of the various things I've worked on at Constellation.

New Logging Infra
Group Assignment Service
Realtime Event Service
Url Shortening Service
Transaction Ingestion
Transaction Cleansing
Transaction Paging
Utility Scripts

durham favs

eat

drink

We can test webhook callbacks with a little http server and a localtunnel.

Run server.js to spin up a local http server on port 8080. It just exposes a top-level route and will print the received header and payload of any request. Then create a localtunnel to have a non-local url that proxies all requests to localhost:8080.

First, install dependencies with npm install.

Then start the express server with npm start.

	const fs = require("fs");
	const axios = require("axios");
	const { parse } = require("csv-parse");
	const Renderer = require("squirrelly");

	class Template {
	constructor(template) {
	this.template = template;
	}

	#!/usr/bin/env python
	import boto3
	import datetime
	import time

	ENABLED_REGIONS = [
	"us-east-1",
	"us-west-2",
	"eu-west-1",
	"eu-central-1",

	import json
	import itertools
	import StringIO


	iterencode = json.JSONEncoder().iterencode


	class SerializableList(list):
	"""

	// # Mocha Guide to Testing
	// Objective is to explain describe(), it(), and before()/etc hooks

	// 1. `describe()` is merely for grouping, which you can nest as deep
	// 2. `it()` is a test case
	// 3. `before()`, `beforeEach()`, `after()`, `afterEach()` are hooks to run
	// before/after first/each it() or describe().
	//
	// Which means, `before()` is run before first it()/describe()

	import test from 'tape';

	const before = test;
	const after = test;

	// beforeEach/afterEach rely on shared state.
	// That's a big anti-pattern for testing.

	// It's also silly to run something before and after
	// ever test -- many of your tests won't need it.

	#!/usr/bin/python
	'''
	A little script for generating HMACs.

	> ./make_hmac.py SECRET BODY
	HMAC

	For example ...

	> ./make_hmac.py secret foo