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Common Mistakes When Making Discord Bots

3 min readBy 42Agents Team
A Discord bot tangled in wires, symbolizing development mistakes

Creating a Discord bot is exciting—but it’s easy to make mistakes that cause crashes, poor UX, or even get your bot banned. Whether you’re building your first project or scaling to thousands of servers, avoiding these common errors can save you time and headaches.

Misconfigured Permissions

Permissions are often overlooked, but critical.

  • Don’t grant Administrator access unless necessary.
  • Use the OAuth2 permission calculator to generate specific access scopes.
  • Double-check channel-level permissions; your bot might be muted in one despite having server-wide privileges.

"Our bot couldn’t post in the support channel for three days. Turned out it didn’t have permission in just that one channel." – Support lead

Skipping Local Dev Environments

Testing live in production is risky and unscalable.

  • Set up a private test server for development and QA.
  • Store secrets in .env files using libraries like dotenv or python-dotenv.
  • Use Git to manage your codebase—even solo developers benefit from version control.

Hardcoding Values

Hardcoding bot tokens, command prefixes, or channel IDs creates fragility.

  • Use config files or environment variables for reusable values.
  • Keep your codebase adaptable to different environments.
  • Modularize logic so values can be swapped easily.

Not Handling Errors

Uncaught exceptions can crash your bot or confuse users.

Python

try:
    await channel.send("Hello!")
except discord.Forbidden:
    print("Bot lacks permission.")

JavaScript

try {
  await message.reply("Hello!");
} catch (err) {
  console.error("Reply failed:", err);
}
  • Always catch and log exceptions.
  • Provide fallback messages for failed commands.

Ignoring Rate Limits

Discord applies strict rate limits.

  • Never spam API calls.
  • Respect Retry-After headers.
  • Use libraries like axios-rate-limit or bottleneck to queue requests.

Unstructured Codebases

A flat, single-file bot script quickly becomes unmaintainable.

  • Break your bot into command modules.
  • Separate logic into handlers or services.
  • Use command loaders to dynamically register commands.

“Our monolith bot script became 800+ lines. Refactoring into modules changed everything.” – Dev team at a gaming community

Poor Logging

Minimal logging = painful debugging.

  • Use structured logging with timestamps and severity levels.
  • Libraries like winston, loguru, or even pino help organize logs.
  • Send errors to a platform like Sentry for real-time alerts.

No Feedback for Users

Bots should be responsive and informative.

  • Confirm when a command is successfully received or completed.
  • Use embeds or buttons for better interaction design.
  • Validate and give feedback on user input (e.g., wrong formats or missing arguments).

Conclusion

Building a bot that works is easy. Building a bot that lasts takes discipline. Avoid these common pitfalls to create bots that are stable, scalable, and enjoyable to interact with.

Clean code, clear logs, modular structure—that’s the real trinity of bot building.

For more help, check out Essential Tools for Building Discord Bots or Step-by-Step Guide to Discord Bot Creation.


Need help auditing your bot or adding AI? Talk to 42Agents — we build intelligent, production-ready Discord bots.