HashQL diagnostic writing patterns using hashql-diagnostics crate. Use when creating error messages, warnings, Labels, Messages, Severity levels, Patches, Suggestions, or improving diagnostic quality in HashQL code.
Install
npx skills add hashintel/hash --skill writing-hashql-diagnosticsnpx skills add hashintel/hash --skill writing-hashql-diagnostics -a claude-code -gnpx skills add hashintel/hash --skill writing-hashql-diagnostics -a codex -ggemini skills install https://github.com/hashintel/hash.git --path .claude/skills/writing-hashql-diagnosticsgh skill install hashintel/hash writing-hashql-diagnosticsgit clone --depth 1 https://github.com/hashintel/hash /tmp/hashintel__hash
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/hashintel__hash/.claude/skills/writing-hashql-diagnostics ~/.claude/skills/writing-hashql-diagnostics # Claude Code
cp -R /tmp/hashintel__hash/.claude/skills/writing-hashql-diagnostics ~/.agents/skills/writing-hashql-diagnostics # Codex, Cursor, Gemini CLI, Copilot, OpenCode