Anima / rules

We split this Test-First-For-Bugs-And-Regression.mdc into the rules it gives an agent

9 rules. About 0 are common, 9 are distinctive, and 0 are very specific to this project.

• ≈0

  Common · estimate

  Many files like this have a rule of this kind.

• ≈9

  Distinctive · estimate

  This author's own choices. Worth a look.

• 0

  Very specific

  Tied to their project's names, files or tools. Probably skip.

• Common
• Distinctive
• Very specific

1. Distinctive:

   Do not just patch the symptom.

   line 9
2. Distinctive:

   run adjacent relevant checks to guard against regressions

   line 18
3. Distinctive:

   prefer targeted tests over broad blind runs at first

   line 22
4. Distinctive:

   add regression coverage for real bugs when practical

   line 23
5. Distinctive:

   test the root behavior, not just incidental implementation details

   line 24
6. Distinctive:

   keep tests readable and aligned with project conventions

   line 26
7. Distinctive:

   document the failure mode clearly in your reasoning

   line 41
8. Distinctive:

   add a test if the codebase supports it and the scope allows it

   line 43
9. Distinctive:

   After fixing a bug, also consider:

   line 47

≈ “Common” is an estimate: at least 1 in 5 of the 6,350 Cursor rule files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

• Where files are headingNew Cursor rule files have more rules about planning and tracking tasks, and fewer about code style.

  Of the Cursor rule files we read, the 3,978 first seen in the last six months, against the older ones: the kind of rule that gained most share, and the kind that lost most. About files like this in general, not this one, and an estimate, since a kind is a pattern in the words.

• In this repository31 other files it gives its agents.

  • CLAUDE.mdCLAUDE.md
  • .cursor/rules/Architecture-Guardrails.mdcCursor rule
  • .cursor/rules/Branch-And-Commit-Workflow.mdcCursor rule
  • .cursor/rules/Changelog-And-Versioning-Discipline.mdcCursor rule
  • .cursor/rules/Change-Scope-Control.mdcCursor rule
  • .cursor/rules/Community-Standards-And-Contributor-Experience.mdcCursor rule
  • .cursor/rules/Continuous-Execution-Until-Done.mdcCursor rule
  • .cursor/rules/Dependency-And-Interface-Safety.mdcCursor rule
  • .cursor/rules/Docs-And-Runbook-Sync.mdcCursor rule
  • .cursor/rules/English-First-Engineering-Workflow.mdcCursor rule
  • .cursor/rules/GitHub-MCP-Available.mdcCursor rule
  • .cursor/rules/License-And-Dependency-Compliance.mdcCursor rule
  • .cursor/rules/Migration-And-Backward-Compatibility.mdcCursor rule
  • .cursor/rules/Open-Source-Contribution-Workflow.mdcCursor rule
  • .cursor/rules/Pull-Request-Readiness-And-Reviewer-Hygiene.mdcCursor rule
  • .cursor/rules/Repo-Navigation-And-Module-Ownership.mdcCursor rule
  • .cursor/rules/Secrets-And-Environment-Safety.mdcCursor rule
  • .cursor/rules/Self-Install-Tools-And-MCP-When-Necessary.mdcCursor rule
  • .cursor/rules/Verification-And-Regression-Checks.mdcCursor rule
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