Microsoft/vscode

Feature Request: Auto-Trigger Parameter Hints When Cursor Enters Parentheses

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#252076 opened on Jun 22, 2025

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 (2 comments) (0 reactions) (1 assignee)TypeScript (74,848 stars) (10,221 forks)batch import
editor-parameter-hintsfeature-requesthelp wanted

Description

Type: Feature Request

Feature Request: Auto-Trigger Parameter Hints When Cursor Enters Parentheses

AFAIK parameter hints are only show when:

  • Typing ( or , within a function
  • Invoked via keyboard shortcut

It would be nice if it was possible to have the parameter hint shown automatically if the cursor is inside () and automatically hide the parameter hint when the cursor leaves ().

This would eliminate the need of manually triggering the parameter hints.

Contributor guide

Tech stack
typescriptjavascript
Domain
developer experiencetooling
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
5
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
TypeScript programmingVS Code internalsEditor parameter hint API
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
15
Research direction
Investigate the current parameter hint triggering logic in the VS Code editor. Look at files like src/vs/editor/contrib/parameterHints/parameterHintsController.ts to understand how hints are triggered. Consider how to add a cursor position listener that shows hints when entering parentheses and hides when leaving. Check existing comments in the issue for any maintainer suggestions.