Issues

• False negative: Harper does not flag its when it should be it's in at least some contextx

  bugfalse-negativeharper-corelinting
  Automattic/harper#4657 · Filter by author hippietrail opened on Oct 20, 2026

• False negative: "too" not flagged when it's an error for "to"

  bugfalse-negativeharper-corelinting
  Automattic/harper#4656 · Filter by author hippietrail opened on Oct 20, 2026

• False negative: Not compound noun written as phrasal verb

  bugfalse-negativeharper-corelinting
  Automattic/harper#4654 · Filter by author hippietrail opened on Oct 20, 2026

• Gmail spellcheck mangles replacement

  bugfirefox-plugin
  Automattic/harper#4652 · Filter by author ephantom opened on Oct 19, 2026

• WordCraft (from ArtCraft) integration

  enhancement
  Automattic/harper#4650 · Filter by author hippietrail opened on Oct 19, 2026

• Phrasal verbs written as compound nouns are not detected after it'd

  bugfalse-negativeharper-corelinting
  Automattic/harper#4649 · Filter by author hippietrail opened on Oct 19, 2026

• Desktop app not responding but says it is (mac)

  bugdesktopmac
  Automattic/harper#4643 · Filter by author stealthyfoxie-spec opened on Oct 18, 2026
  1

• Misspelling: 'basicly' should suggest the correct word 'basically'

  enhancementharper-corelintingspelling
  Automattic/harper#4639 · Filter by author Karloss1234 opened on Oct 17, 2026

• feat: Brazilian Portuguese language support (pt-BR)

  language-and-dialect
  Automattic/harper#4636 · Filter by author yanhenrique-dev opened on Oct 16, 2026

• Harper should flag "look on", which is common Euroenglish for "look at".

  enhancementgrammarharper-corelinting
  Automattic/harper#4634 · Filter by author hippietrail opened on Oct 16, 2026

• Should Harper try to detect "if" vs "of" typos?

  enhancementharper-corelinting
  Automattic/harper#4629 · Filter by author hippietrail opened on Oct 16, 2026

• Harper toggles off the second I go to check recommended edit

  bugdesktopmac
  Automattic/harper#4628 · Filter by author CraftyCRS opened on Oct 16, 2026
  2

• "Setup" mistakenly flagged to change to "set up" when it's acting as a noun

  bugfalse-positiveharper-corelinting
  Automattic/harper#4627 · Filter by author hippietrail opened on Oct 16, 2026

• Harper Desktop 2.12.0 (macOS) crashes when clicking an underline - egui-wgpu "Tried to update a texture that has not been allocated yet"

  bugcrashdesktopmac
  Automattic/harper#4600 · Filter by author artembru-ex9 opened on Oct 14, 2026

• obvious corrections are often not suggested

  enhancementharper-corelintingspelling
  Automattic/harper#4598 · Filter by author bhsdjkfjergren opened on Oct 14, 2026

• Add additional criteria for determining sentence length.

  enhancementlinting
  Automattic/harper#4597 · Filter by author duuuuuuuuuuuusty opened on Oct 13, 2026
  1

• Test edit does not show any Harper fixes

  bugdesktopmac
  Automattic/harper#4596 · Filter by author YoavGro opened on Oct 13, 2026
  1

• Should we try to flag "back into time" when it's a mistake for "back in time"?

  enhancementharper-corelinting
  Automattic/harper#4595 · Filter by author hippietrail opened on Oct 13, 2026

• Allow start case, as an alternative to title case.

  enhancement
  Automattic/harper#4587 · Filter by author beedell-roke opened on Oct 11, 2026

• "followup" used as an adjective should not be flagged to change to "follow up"

  bugfalse-positiveharper-corelinting
  Automattic/harper#4585 · Filter by author hippietrail opened on Oct 11, 2026

• Harper correctly suggests inserting missing "has" but calls it a "preposition"

  bug
  Automattic/harper#4581 · Filter by author hippietrail opened on Oct 11, 2026

• False positive suggesting "the RE (process)" should be merged to "theRE"

  bugfalse-positiveharper-corelinting
  Automattic/harper#4580 · Filter by author hippietrail opened on Oct 11, 2026

• Windows 11 - One or two white windows (no borders) block access to installer/text editor once installed

  bugdesktopwindows
  Automattic/harper#4578 · Filter by author blaiz2023 opened on Oct 10, 2026
  1

• when Harper is making a correction/suggestion. it could give a reasoning.

  enhancement
  Automattic/harper#4574 · Filter by author Pablo-Sama opened on Oct 10, 2026
  2

• Need to flag mixing up "you" and "your"

  enhancementharper-corelinting
  Automattic/harper#4571 · Filter by author hippietrail opened on Oct 9, 2026