tidb-sql SKILL.md skillA
tidb-sql from pingcap/agent-rules is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pingcap/agent-rules/tidb-sql@git:20260109.6d85a34Pins git:20260109.6d85a34 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pingcap/agent-rules
- Path
skills/tidb-sql/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260109.6d85a34, committed Jan 9, 2026
- Size
- 3,877 bytes
- Repository stars
- 27
- License
- none declared
Write, review, and adapt SQL for TiDB with correct handling of TiDB-vs-MySQL differences (VECTOR type + vector indexes/functions, full-text search, AUTO_RANDOM, optimistic/pessimistic transactions, foreign keys, views, DDL limitations, and unsupported MySQL features like procedures/triggers/events/GEOMETRY/SPATIAL). Use when generating SQL that must run on TiDB, migrating MySQL SQL to TiDB, or debugging TiDB SQL compatibility errors.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# TiDB SQL (MySQL-compat-focused) Goal: generate SQL that runs correctly on TiDB by default, and avoid "works on MySQL but breaks on TiDB" constructs. ## Workflow (use every time) 1. Identify the target engine and version: - Run `SELECT VERSION();` - If the result contains `TiDB`, treat it as TiDB and parse the version (needed for feature gates like Vector / Foreign Key). - If connecting to TiDB Cloud, ensure the client enables SSL with certificate + identity verification (see `skills/tidb-sql/references/tidb-cloud-ssl.md`). 2. Ask 2 quick capability questions if the request depends on them: - "Do you have TiFlash?" (needed for vector indexes) - "Is this TiDB Cloud Starter/Essential in a supported region for Full-Text Search?" (availability is limited) 3. Generate SQL using TiDB-safe defaults: - Avoid unsupported MySQL features (procedures/triggers/events/UDF/GEOMETRY/SPATIAL, etc.) - Treat views as read-only - Treat primary key changes as migration/rebuild work 4. If the user provides MySQL SQL, do a compatibility pass: - Replace unsupported features with TiDB alternatives - Call out behavior differences and version prerequisites explicitly …
Read the whole file at its exact version.
How to install
mdr add pingcap/agent-rules/tidb-sql@sha256:4b1f2a39a181cd8fThe line at the top of this page pins the label git:20260109.6d85a34, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ur47443niutjjmz7)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jan 9, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3877 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
pingcap/agent-rules · 27 stars · license none declared · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ur47443niutjjmz7 GET https://markdownregistry.com/api/v1/resolve?ref=pingcap/agent-rules/tidb-sql GET https://markdownregistry.com/api/v1/blob/4b1f2a39a181cd8f0b8d7922649c682d795ea6a544cb9d3cd780084aea6287ff
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.