The highest priority is getting unlabeled bugs to zero.

Query: Open Unlabeled Issues

Most issues have pretty bad titles, hindering future searches. If needed, edit the issue title to align better with thePreferred Issue Titles format.

If you can't figure out from the issue report what the titleshould be, then you'll definitely need clarification from the user (see "Needs More Info" below).

Classify the bug accordingly:

• Duplicate: Many issues are duplicates, so try to find an original
  • If you do, add theDuplicate label and add a comment e.g. "See #1234567"
  • If it's clearly an exact duplicate, Close
  • Optional: If the user would have found this with a trivial search (e.g. searching for the title of their own bug), gently remind them to search before logging new issues
• Legitimate bug (crash, incorrect behavior, etc.): Add theBug label
  • Optionally addHigh Priority if it's an easy-to-hit crash or incorrect emit
  • Optionally add one of theDomain: labels if you'd like to
• Suggestion
  • AddSuggestion andIn Discussion if this is something that can be looked at immediately
  • AddSuggestion,Out of Scope, and close if the suggestion is not something we would ever do (change JS runtime semantics, emit Python, switch to Haskell's type system, etc). Add a comment pointing to theDesign Goals Wiki page
  • AddSuggestion,Needs Proposal if something requiring a more formal description is required. Add a comment indicating what's needed
• Question (the user is explicitly asking for help)
  • Add theQuestion label
  • Provide an answer if it's easy for you to do so, otherwise point them atStack Overflow and remind that the issue tracker is not a support forum
  • Close the bug if it's egregiously out of scope (e.g. asking for help getting Angular2 working or whatever)
  • If the question is about the compiler API and you can't answer it immediately, assign to a dev
• Not a bug
  • AddWorking as Intended if the behavior is truly done on purpose, orDesign Limitation if it's something wewould fix in a perfect world but are unable to do so
  • Post a comment explaining why. Try to reference things fromthe FAQ if applicable; consider updating the FAQ if you think it's a common question
• It's not clear what the issue is describing
  • Add theNeeds More Info label
  • Add a comment explaining why the issue isn't actionable yet
• Issue is in external component (e.g. tslint, awesome-typescript-loader, etc)
  • Add theExternal label
  • Explain why
• Completely useless
  • If the issue is completely unsalvageable (e.g. it's just "Why can TypeScript not for C# now?" with no other info), add theUnactionable label and Close.
• Fallback: Not sure
  • Add "Needs Investigation" label
  • Optional: Post comment with your thoughts (e.g. "Might be a type inference bug, need to investigate")

Once there are no new unlabeled bugs, start looking at issues which need investigation:Query: Bugs needing investigation