Fix violations of rule $0 on files matching $1.

Arguments

• $0 — Rule name (e.g., use-semantic-token, no-core-import)
• $1 — File or glob pattern (e.g., static/app/components/, static/app/views/alerts/)

Step 1: Understand the Rule

Before fixing violations, know what the fix looks like. Load references/fix-patterns.md for per-rule fix details:

For use-semantic-token violations, you MUST load references/token-taxonomy.md to know which token category to use for each CSS property.

Step 2: Assess Scale

Count violations before choosing a strategy:

pnpm exec eslint --rule '@sentry/scraps/$0: error' "$1" 2>&1 | tail -5

The last line shows the count (e.g., "42 problems (42 errors, 0 warnings)").

Tip: Running eslint on all of static/app/ can take 2+ minutes. Narrow scope to a subdirectory first.

Step 3: Choose Strategy

Auto-fixable rule (any scale)

pnpm exec eslint --fix --rule '@sentry/scraps/$0: error' "$1"

Always review the diff after --fix before committing. If the rule is partially auto-fixable, run --fix first, then manually fix remaining violations.

Under 100 violations — manual agent fix

1. Run eslint on target path
2. Fix violations 5-10 files at a time
3. Re-run after each batch to verify
4. Repeat until clean

100-500 violations — batched fix

1. Split target into subdirectories (e.g., static/app/views/, static/app/components/)
2. Fix one subdirectory at a time
3. Commit after each batch for reviewable PRs
4. Re-run count after each batch to track progress

500+ violations — codemod or staged rollout

• Mechanical transforms: write a temporary jscodeshift codemod or a targeted script using @typescript-eslint/typescript-estree
• Import-path rules: --fix usually handles these at any scale
• Complex transforms: enable the rule as warn first, fix in batches across multiple PRs

Fix Workflow (tight loop)

1. Run: pnpm exec eslint --rule '@sentry/scraps/$0: error' "$1"
2. Fix violations in reported files
3. Re-run on changed files to verify
4. Expand scope, repeat

Coordinating Large Changes

• Split PRs to ~50 changed files based on ownership rules in @.github/CODEOWNERS.
• PR title convention: fix(lint): enforce @sentry/scraps/$0 for <codeowner>
• If the rule is new and not yet in eslint.config.ts, fix all violations first, then enable the rule in a follow-up PR
• Run pre-commit on changed files before committing:

  .venv/bin/prek run -q --files <file1> [file2 ...]

Verification

After all fixes:

pnpm exec eslint --rule '@sentry/scraps/$0: error' static/app/ 2>&1 | tail -5

Should report 0 problems.