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Step‑by‑step guide to add a slash command with autocomplete in Discord.js v14, including registration, interaction handling, error recovery, and rollback.
Learn how to use Discord.js v14’s ephemeral flag to send private, self‑destructing replies to slash commands, keeping channel chat clean and user data hidden from others.
Create a Mattermost deployment notifier plugin that registers a slash command, streams status updates, and runs safely in the plugin sandbox. Follow the step‑by‑step guide, trade‑off analysis, and verification checklist.
discordjs
nodejs
mattermost