diff --git a/.agents/shared/writing-style.md b/.agents/shared/writing-style.md
index bb609c3e5868a..5633f3a7a0939 100644
--- a/.agents/shared/writing-style.md
+++ b/.agents/shared/writing-style.md
@@ -5,8 +5,10 @@ Use this guidance for authoring, editing, or reviewing Markdown in `pingcap/docs
 ## Overall principles
 
 - Write for TiDB users, not for internal teams.
-- Use a conversational and friendly tone, but do not sound casual, playful, or promotional.
+- Use a conversational and friendly tone, but do not sound playful or promotional.
 - Prefer clear, direct, and practical language.
+- When in doubt, favor clarity over cleverness.
+- Rewrite content that might confuse a new user.
 - Do not pre-announce what the document will do. Start with useful information directly.
 - Write for a global audience. Avoid culture-specific references, vague shorthand, and region-specific assumptions.
 - Write accessibly. Prefer simple sentence structures and wording that is easy to scan and understand.
@@ -25,12 +27,21 @@ Use this guidance for authoring, editing, or reviewing Markdown in `pingcap/docs
 
 - Use second person, such as `you` and `your`, instead of `we`.
 - Use active voice whenever possible. Make it clear who performs the action.
+- Prefer present tense unless you are describing historical behavior.
+- Correct English grammar, spelling, and punctuation errors.
 - Put conditions before instructions, not after.
 - Use standard American English spelling and punctuation.
 - Use serial commas.
 - Prefer concise and precise wording over decorative phrasing.
 - Preserve technical meaning. Do not rewrite in ways that change product behavior or scope.
 
+## Terminology and version notation
+
+- Use terminology consistently. Do not use "database" and "instance" interchangeably. Choose the term that matches the actual product concept.
+- Use "replicate" instead of "synchronize" when referring to replicating data from one TiDB cluster to another.
+- Write MySQL versions as `MySQL 8.0`, `MySQL 8.4`, or `MySQL 8.x`. Do not add a `v` prefix. The `v` prefix is reserved for TiDB and TiDB tool versions, such as `TiDB v8.5` and `DM v2.0`.
+- Follow the established terminology in `glossary.md` and `resources/terms.md`.
+
 ## Structure and organization
 
 - Keep the structure easy to scan with meaningful headings and short paragraphs.
@@ -100,14 +111,16 @@ Keep the frontmatter `title` and the H1 aligned in wording and capitalization.
 - Use images only when they add value that text alone cannot provide.
 - Keep screenshots and diagrams aligned with the current product behavior and UI text.
 
-## Review lens
-
-When reviewing or rewriting content, check these in order:
+## Final checklist
 
-1. Is the content factually correct?
-2. Is the logic complete and easy to follow?
-3. Are other related documents also affected and likely to need updates?
-4. Does the structure match the document type?
-5. Does the wording improve clarity without changing product meaning?
+Before finalizing authored, edited, or reviewed content, verify that:
 
-Make feedback specific, actionable, and tied to the changed content. Avoid praise-only edits.
+- [ ] The content addresses a clear user need and is appropriate for its intended audience.
+- [ ] Technical facts are accurate, and edits preserve the intended product behavior and scope.
+- [ ] The structure matches the document type, and headings follow the required hierarchy and capitalization.
+- [ ] Procedures present prerequisites and conditions before clear, actionable steps.
+- [ ] Terminology, product names, and version notation are accurate and consistent.
+- [ ] Commands, code, configuration names, API fields, UI strings, and literal values remain correct.
+- [ ] Links, formatting, lists, notes, warnings, images, and alt text follow repository conventions.
+- [ ] The language is clear, concise, grammatically correct, and easy for a global audience to understand.
+- [ ] Related documents, TOC entries, aliases, or cross-references have been considered when applicable.
diff --git a/.coderabbit.yaml b/.coderabbit.yaml
new file mode 100644
index 0000000000000..31de3c74d4b73
--- /dev/null
+++ b/.coderabbit.yaml
@@ -0,0 +1,42 @@
+# yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json
+
+language: en-US
+early_access: false
+
+# Controls how comments are written, not how many comments are posted.
+tone_instructions: >-
+  Be concise, direct, and professional. Avoid praise, filler, and subjective style preferences.
+
+reviews:
+  # Keep assertive to catch language, clarity, and consistency issues.
+  profile: assertive
+  request_changes_workflow: false
+  poem: false
+  in_progress_fortune: false
+
+  auto_review:
+    enabled: true
+    auto_incremental_review: true
+    auto_pause_after_reviewed_commits: 2
+    drafts: false
+    # CodeRabbit always includes the default branch. Keep target branches explicit so auto review remains enabled even if the default branch changes.
+    base_branches:
+      - '^master$'
+      - '^release-8\.5$'
+
+  path_instructions:
+    - path: '**/*.md'
+      instructions: |
+        - Act as a senior technical writer when reviewing documentation.
+        - Provide ready-to-commit suggestions that PR authors can apply directly.
+        - Make feedback specific, actionable, and tied to the changed content. Avoid praise-only comments, summaries of correct content, duplicate comments, broad rewrites, and low-value nitpicks.
+
+knowledge_base:
+  code_guidelines:
+    enabled: true
+    filePatterns:
+      - files: .agents/shared/writing-style.md
+        applyTo: '**/*.md'
+
+chat:
+  art: false