shotgundebugging

tmux new -A -s codex
codex

ttyd -p 7681 -i eth0 -R -O tmux attach-session -t codex -r

# -p 7681 sets the web port.
# -i eth0 binds ttyd to your LAN interface (use wlan0 if on Wi-Fi).
# -R / --readonly disables browser input (no typing/click-to-send-keys).
# -O blocks websocket connections from different origins.

shotgundebugging

• - Route state (location.state) is a one-time payload passed during navigation (navigate(..., { state }) or <Link state={...}>).
      - It does not auto-refresh.
      - It can be stale after backend changes.
      - It may be missing on direct URL loads/reloads.
  - Context state (UserAdminContext) is shared app state provided by UserLinks.
      - It is loaded/refreshed from API (fetchUser(userId)).
      - It updates over time and is the source of truth for current user data in that section.
      - It is consistent across nested admin user pages.

shotgundebugging

  open_tx = ActiveRecord::Base.connection.open_transactions
  Rails.logger.info(
    "[TX_DEBUG] before_write user_id=#{user.id} open_transactions=#{open_tx} [/TX_DEBUG]"
  )

  user.update!(stripe_customer_id: stripe_customer.id)

  Rails.logger.info(
    "[TX_DEBUG] after_write user_id=#{user.id} stripe_customer_id=#{User.where(id: user.id).pick(:stripe_customer_id).inspect} " \
    "open_transactions=#{open_tx} rollback_risk=#{open_tx.positive?} [/TX_DEBUG]"

shotgundebugging

# Required Ruby version
bundle exec ruby -e 'puts Gem::Specification.find_by_name("railties").required_ruby_version

# Get revision
Rails.app.revision

shotgundebugging

# Original Rails controller and action
class EmployeesController < ApplicationController
  def create
    @employee = Employee.new(employee_params)
    
    if @employee.save
      redirect_to @employee, notice: "Employee #{@employee.name} created"
    else
      render :new
    end

shotgundebugging

Vim Manipulation Cheat Sheet

Action

Key	Result
v	select
y	copy (yank)
c	change
d	delete

shotgundebugging

#!/Users/aaron/.rubies/arm64/ruby-trunk/bin/ruby

# This is a demo language server for Ruby, written in Ruby.  It just checks
# the syntax of Ruby programs when you save them.
#
# Configure this in Vim by adding the vim-lsp plugin, then doing this
# in your vimrc:
#
#  au User lsp_setup
#        \ lsp#register_server({

shotgundebugging

profiler = Thread.new do
  while true
    p Thread.main.backtrace
    sleep 0.5
  end
end

def slow_function
  sleep 2
end

shotgundebugging

# actionpack/lib/action_controller/metal/request_forgery_protection.rb

# Sets the token value for the current session.
def form_authenticity_token(form_options: {})
  masked_authenticity_token(session, form_options: form_options)
end

# Creates a masked version of the authenticity token that varies
# on each request. The masking is used to mitigate SSL attacks
# like BREACH.

shotgundebugging

# actionview/lib/action_view/helpers/csrf_helper.rb

def csrf_meta_tags
  if defined?(protect_against_forgery?) && protect_against_forgery?
    [
      tag("meta", name: "csrf-param", content: request_forgery_protection_token),
      tag("meta", name: "csrf-token", content: form_authenticity_token)
    ].join("\n").html_safe
  end
end