`react-doctor/ink-no-measure-element-in-render`

Ink element measured during render

Category: Bugs
Severity: error
Source: oxlint-plugin-react-doctor
Framework: global
Enabled when: Ink >= 3.0.0
Tags: ink
Default: Enabled

Validate the diagnostic

Confirm the reported code matches this rule before you edit it.

Confirm the reported code matches react-doctor/ink-no-measure-element-in-render. Compare it with the Before example and verify the same API, framework, and execution context. Treat it as a false positive only when one of those conditions differs.

Compare the code

The corrected pattern shows a focused way to address the diagnostic.

Reported pattern

import { measureElement, Text } from "ink";

const App = ({ node }) => {
  measureElement(node);
  return <Text />;
};

Corrected pattern

import { measureElement, Text } from "ink";
import { useLayoutEffect } from "react";

const App = ({ node }) => {
  useLayoutEffect(() => {
    measureElement(node);
  }, [node]);
  return <Text />;
};

How to fix

Use the corrected pattern as a reference. Preserve behavior that the rule does not require you to change.

Copyable fix prompt

Copy this self-contained prompt into your coding agent after you confirm the diagnostic.

Fix every confirmed react-doctor/ink-no-measure-element-in-render diagnostic in the current repository. Required change: - Measure Ink elements in a layout effect, effect, callback ref, or event handler.

Reference transformation:Before:

import { measureElement, Text } from "ink";

const App = ({ node }) => {
  measureElement(node);
  return <Text />;
};

After:

import { measureElement, Text } from "ink";
import { useLayoutEffect } from "react";

const App = ({ node }) => {
  useLayoutEffect(() => {
    measureElement(node);
  }, [node]);
  return <Text />;
};

Constraints: - Confirm the reported code matches the Before pattern. - Make the smallest change that fixes the root cause. - Preserve behavior and interfaces unrelated to this diagnostic. - Reuse existing project components, utilities, and conventions. - Do not introduce render-phase side effects, render-phase state updates, or Hooks rule violations. - Adapt identifiers and framework details instead of copying blindly. - Do not disable the rule or suppress matching code. - Confirm this rule is enabled for the project: Ink >= 3.0.0. Verification: - Run focused tests for the changed behavior. - Run React Doctor and confirm this diagnostic no longer appears. - Report the files changed and any checks you could not run.

More Bugs rules from the rules reference:

react-doctor/ink-no-multiple-static: Multiple unconditional Static regions in one render root
react-doctor/ink-no-raw-text: Raw text outside Ink Text
react-doctor/ink-no-repeated-render: Ink render reused before unmount
react-doctor/ink-prefer-use-paste: Paste interpreted through useInput
react-doctor/ink-static-is-append-only: Static receives a non-append-only collection

react-doctor/ink-no-measure-element-in-render