TiDB Issue Metadata Guard

Overview

Use this skill for TiDB GitHub issue metadata updates. The goal is to preserve issue-template structure, label hygiene, and searchable issue descriptions.

Before creating or editing an issue, read the matching file under .github/ISSUE_TEMPLATE/.

Workflow

1. Write issue titles and descriptions in English.
2. Search existing issues and PRs first when the task is bug reporting or tracking an existing change.
3. When creating a new issue, start from the matching issue template instead of writing the body from scratch.
   • Follow the template and fill the required sections.
   • For bug reports, include minimal reproduction, expected behavior, actual behavior, and TiDB version information when available.
   • Fill issue fields with concrete values from the available artifacts instead of generic placeholders.
   • Keep the first screen readable: show the top-level repro summary, expected result, actual result, and version directly in the section body.
   • If a field is long, keep a short visible summary and put the full content in a <details> block.
     • Good candidates: full repro SQL, full schema, long logs, checksum diffs, execution plans, and plan replayer notes.
     • Do not hide the only reproduction steps or the top-level expected/actual conclusion inside <details>.
   • If supporting artifacts exist, mention them explicitly in the repro steps or attachments summary.
   • When adding an analysis section, keep it short and evidence-backed:
     • 1–3 likely causes at most
     • prefer evidence from SQL shape, plans, errors, or result diffs
4. When editing an existing issue, start from the current issue body instead of rewriting it from scratch.
   • Fetch the current title, body, and labels first.
   • Patch only the intended template sections and preserve untouched sections, metadata, and still-valid context.
   • Re-apply the same content rules used for new issues: concrete values, visible top-level summary, <details> for long raw artifacts, and short evidence-backed analysis when needed.
5. When applying labels, do it explicitly instead of assuming the UI or template will fill them in.
   • For new issues created with gh issue create, add labels explicitly when the GitHub UI would normally auto-apply them.
   • For existing issues, prefer gh issue edit so labels reflect the current state after the body update.
   • Add at least one component/* label.
   • For bug or regression issues, add severity/* and affected-version labels when appropriate.
   • Severity labeling rule:
     • Wrong-result bugs: use severity/major.
     • Query fails to execute on valid SQL, for example an internal planner or runtime error: use severity/major.
     • Complex-query or compatibility issues that are not confirmed wrong-result and are not execution-blocking: use severity/moderate.
   • If label permissions are missing, first add labels by commenting /label <label name>.
   • If label comments still do not work, add a separate comment with Suggested labels: ....
6. Prefer file-based edits for GitHub metadata.
   • Materialize the intended issue body in a local Markdown file.
   • For new issues, review that file against the matching issue template before calling gh.
   • For existing issues, diff the patched body against the current issue body before calling gh.

Quick Checks

• The issue title and body are in English.
• The issue still follows the matching template structure.
• Long raw artifacts are folded with <details> when needed, while the top-level summary remains visible.
• Existing issue edits preserve untouched sections and metadata outside the intended patch.
• The issue carries the expected labels, or a follow-up label comment / Suggested labels: ... comment is present when label permissions are missing.