mermaid-atlas.vercel.app
A local workbench for navigating very large Mermaid diagrams.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 6 · Act 4 · Transact 0 · Score: Not yet scored
Tool inspector
apply_patch
Use only when the user asks to modify Mermaid source on the current canvas. Applies exact line/text operations, validates before commit, and re-renders; invalid patches change nothing. This is not needed for explanations, reviews, selection, or walkthroughs. Use sourceLine from graph results and keep patches small. A successful patch can be reverted with undo_last_change.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
operations |
array | yes | — |
description |
string | no | Short human-readable summary of the change, shown in the activity log. |
Raw JSON schema
{
"type": "object",
"properties": {
"operations": {
"type": "array",
"minItems": 1,
"maxItems": 40,
"items": {
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"insert_after_line",
"replace_line",
"delete_line",
"replace_text"
]
},
"line": {
"type": "integer",
"minimum": 0,
"description": "Zero-based source line, as returned in a node's sourceLine. Required for line operations."
},
"text": {
"type": "string",
"description": "Replacement or inserted text. Required except for delete_line."
},
"find": {
"type": "string",
"description": "Exact text to replace, for replace_text."
}
},
"required": [
"type"
],
"additionalProperties": false
}
},
"description": {
"type": "string",
"description": "Short human-readable summary of the change, shown in the activity log."
}
},
"required": [
"operations"
],
"additionalProperties": false
}
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