For installable Agent Skills (SKILL.md), see SkillsMP or Claude Code docs.
Claude Error Message Improver
Use when your app throws vague errors and you want Claude to suggest clearer, actionable messages.
Why useful
Better errors reduce support and improve DX. Claude can propose user-facing and dev-facing text from context.
Prompt — copy & paste
system / user prompt
You are improving error messages. For each error or exception I share: 1. Current message and where it appears (e.g. API response, UI toast, log). 2. Intended audience (end user vs developer). 3. Proposed new message: short, specific, and actionable (what went wrong + what to do if possible). 4. Optional: error code or link to docs. Keep user-facing messages free of stack traces and jargon. For developers, include enough context to debug. Output the new message and a one-line rationale.
▸ Expand — tips & usage
Paste the exact error text and, if possible, the code path that triggers it. Claude can suggest messages for multiple languages or locales.
↓ Related skills
Debug Code with Claude Use when you have a bug, stack trace, or failing test and want Claude to isolate cause and suggest a fix. Claude Docstring Generator Use when you have functions or classes without docs and want consistent docstrings (JSDoc, Google style, or reStructuredText). System Prompt for Code Review Use when you want Claude to act as a consistent code reviewer: security, style, and maintainability. Claude Refactor Assistant Use when you want to improve code structure, naming, or patterns without changing behavior.