retttx EverettBerry

Session-scoped hooks in Claude Code

How /goal actually works under the hood, and how to get the same effect yourself with a one-line file edit — no plugin, no restart, no patched binary.

TL;DR

Claude Code has a private, in-memory sessionHooks registry that only the built-in /goal command and Skills can write to. You can't access it from user-land.

But the runtime re-reads your .claude/settings.local.json file on every single hook event, so dropping a hooks block into that file is effectively the same thing: the hook becomes active on the next tool call, and deleting it from the file removes it on the call after that. No restart needed. Both directions were verified empirically.

Purpose

Bootstrap knowledge of LLMs ASAP. With a bias/focus to GPT.

Avoid being a link dump. Try to provide only valuable well tuned information.

Prelude

Neural network links before starting with transformers.

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	#!/usr/bin/env python
	"""
	Simple HTTP URL redirector
	Shreyas Cholia 10/01/2015

	usage: redirect.py [-h] [--port PORT] [--ip IP] redirect_url

	HTTP redirect server

	positional arguments:

	" Ignore some folders and files for CtrlP indexing
	let g:ctrlp_custom_ignore = {
	\ 'dir': '\.git$\\|\.yardoc\\|node_modules\\|log\\|tmp$',
	\ 'file': '\.so$\\|\.dat$\|\.DS_Store$'
	\ }