Notes on building software.

A personal blog of technical articles about software development.

A Tour of Claude Code's Built-in Slash Commands

September 9, 2026· 2 min read·claude-codeslash-commandscliproductivity

A quick map of the slash commands Claude Code ships with, grouped by what they help you do.

Managing Tool Permissions with /permissions

September 9, 2026· 2 min read·claude-codeslash-commandspermissionscli

Control what Claude can do without asking, using allow and deny rules through /permissions.

Checking Costs and Usage with /usage

September 9, 2026· 2 min read·claude-codeslash-commandsproductivitycli

See how much you're using and spending in a session with the /usage command.

Resuming Past Sessions with /resume and --continue

September 9, 2026· 2 min read·claude-codeslash-commandscliproductivity

Pick up right where you left off using /resume in-session or the continue and resume flags from the shell.

Writing Your First Custom Slash Command

September 9, 2026· 2 min read·claude-codeslash-commandsproductivitycli

Turn a prompt you type over and over into a reusable slash command with a single Markdown file.

Passing Arguments to Custom Commands with $ARGUMENTS

September 9, 2026· 2 min read·claude-codeslash-commandsproductivitycli

Make custom commands flexible by feeding them input through $ARGUMENTS or positional $1, $2 slots.