mermaid_mcp_tool

Please inspect the following Mermaid flowchart code, identify syntax errors line by line, and return a fully fixed version that can be rendered correctly by the frontend Mermaid parser:
mermaid
flowchart TD
A[Start] --> B{Logged in?}
B -->|Yes| C[Go to Home
B -->|No| D[Redirect to Login]

Returns line-by-line error notes and a complete, syntactically valid Mermaid flowchart.

Below is a Mermaid sequence diagram generated by an LLM. Validate whether it follows Mermaid syntax; if not, repair it step by step and output the final usable code:
mermaid
sequenceDiagram
participant User
participant System
User->>System: Submit request
System-->>User Return result

Provides validation results, needed line-level fixes, and final parser-compatible sequence diagram code.

I have 3 Mermaid code snippets. Please validate each one, mark erroneous lines, and output a corrected version for each. If a snippet is already valid, indicate that it passes:
1. flowchart LR ...
2. classDiagram ...
3. stateDiagram-v2 ...

Returns per-snippet validation status, error locations, and corrected Mermaid code for batch troubleshooting.