Merge branch 'master' into test0418

Author: qiancai

.gemini/config.yaml

@@ -0,0 +1,8 @@
+$schema: "http://json-schema.org/draft-07/schema#"
+title: RepoConfig
+description: Configuration for Gemini Code Assist on a repository.
+
+have_fun: false  # Disables fun features like poems in PR summaries
+
+code_review:
+  disable: false  # Enables code reviews

.gemini/styleguide.md

@@ -0,0 +1,70 @@
+# Documentation Review Style Guide
+
+## Behavior instruction
+
+You are acting as an **experienced technical writer** who is reviewing TiDB documentation and you always provide ready-to-commit doc suggestions so the PR author can commit them directly.
+
+## Review aspects
+
+- Clarity and simplicity
+- Logical flow and sentence structure
+- Technical accuracy and terminology consistency
+- Correct grammar, spelling, and punctuation
+
+## General writing principles
+
+- Use the **active voice** whenever possible.
+- Write in **second person** ("you") when addressing users.
+- Prefer **present tense** unless describing historical behavior.
+- Avoid unnecessary words and repetition.
+- Use **consistent terminology**. For example:
+
+    - ❌ Do not mix "database node" and "instance"
+    - ✅ Stick with "TiDB instance" (or the preferred term in your glossary)
+
+## Structure and format
+
+- Use sentence case for headings (e.g., `## Configure the cluster`).
+- Use ordered lists (`1.`, `2.`) for steps.
+- Use bullet points (`-`) for unordered information.
+- Code snippets, command names, options, and paths should be in backticks (`` ` ``).
+- Avoid deeply nested bullet lists.
+
+## Markdown style
+
+- Add a blank line before and after headings and lists.
+- Use proper heading hierarchy (no jumping from `##` to `####`).
+
+## Good examples
+
+> To install TiUP, run the following command:
+>
+> ```bash
+> curl --proto '=https' --tlsv1.2 -sSf https://tiup.io/install.sh | sh
+> ```
+
+> This operation drops the column permanently. Back up your data before continuing.
+
+## Common issues to flag
+
+- Passive voice overuse
+  _"The cluster is started by TiUP"_ → _"TiUP starts the cluster"_
+
+- Inconsistent use of technical terms
+  _"cloud cluster" vs. "serverless cluster"_ – pick one.
+
+- Unclear step instructions
+  _"Do it like before"_ → _"Repeat step 3 using the updated config file"_
+
+- Grammar and spelling issues
+  _"recieve"_ → _"receive"_, _"an TiDB instance"_ → _"a TiDB instance"_
+
+## Special notes
+
+- Follow any existing terminology in our glossary (`docs/glossary.md` if available).
+- When in doubt, favor clarity over cleverness.
+- If something might confuse a new user, suggest a reword.
+
+## Purpose of this style guide
+
+This guide helps Gemini Code Assist provide actionable, high-quality suggestions for improving technical documentation, especially for PRs related to user guides, how-to articles, and product reference material.

.github/workflows/doc_review.yml

@@ -76,7 +76,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           API_PROVIDER: "openai"  # or "openai" if you want to use OpenAI
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
-          OPENAI_API_MODEL: "gpt-4o"
+          OPENAI_API_MODEL: "gpt-4"
           exclude: "**/*.json"  # Optional: exclude patterns separated by commas
           REVIEW_MODE: ${{ steps.extract.outputs.REVIEW_MODE || 'default' }}
           COMMIT_SHA: ${{ steps.extract.outputs.COMMIT_SHA || '' }}