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Step 247: file operation tools for MCP (read, write, create, diff, list)

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Adds 5 workspace-aware file I/O tools to the MCP server so agents can
manage files without a GUI. All paths are resolved against --workspace
root with escape-rejection security. 12/12 tests pass, tool count now 15.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Bill
2026-02-11 05:59:02 +00:00
parent 06706aeacf
commit 1131fdf73d
8 changed files with 817 additions and 2 deletions
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71
editor/src/MCPServer.h
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@@ -549,11 +549,82 @@ private:
return {};
}
// ---------------------------------------------------------------
// Step 247: Register file operation tools
// ---------------------------------------------------------------
void registerFileTools() {
// whetstone_file_read
tools_.push_back({"whetstone_file_read",
"Read a file from the workspace. Returns file content with "
"optional line range filtering. Path is relative to workspace root.",
{{"type", "object"}, {"properties", {
{"path", {{"type", "string"}, {"description", "File path (relative to workspace)"}}},
{"startLine", {{"type", "integer"}, {"description", "Start line (1-based, optional)"}}},
{"endLine", {{"type", "integer"}, {"description", "End line (1-based, optional)"}}}
}}, {"required", {"path"}}}
});
toolHandlers_["whetstone_file_read"] = [this](const json& args) {
return callWhetstone("fileRead", args);
};
// whetstone_file_write
tools_.push_back({"whetstone_file_write",
"Write content to a file in the workspace. Creates parent "
"directories if needed. Requires Refactor or Generator role.",
{{"type", "object"}, {"properties", {
{"path", {{"type", "string"}, {"description", "File path (relative to workspace)"}}},
{"content", {{"type", "string"}, {"description", "Content to write"}}}
}}, {"required", {"path", "content"}}}
});
toolHandlers_["whetstone_file_write"] = [this](const json& args) {
return callWhetstone("fileWrite", args);
};
// whetstone_file_create
tools_.push_back({"whetstone_file_create",
"Create a new file with optional language template. "
"Requires Refactor or Generator role.",
{{"type", "object"}, {"properties", {
{"path", {{"type", "string"}, {"description", "File path (relative to workspace)"}}},
{"language", {{"type", "string"}, {"description", "Language (python, cpp, rust, go, java, javascript, typescript)"}}},
{"template", {{"type", "string"}, {"description", "Template name (module, empty) or empty for blank file"}}}
}}, {"required", {"path"}}}
});
toolHandlers_["whetstone_file_create"] = [this](const json& args) {
return callWhetstone("fileCreate", args);
};
// whetstone_file_diff
tools_.push_back({"whetstone_file_diff",
"Get a unified diff between the active buffer content and the "
"file on disk. Optionally specify a path, defaults to active buffer.",
{{"type", "object"}, {"properties", {
{"path", {{"type", "string"}, {"description", "File path (optional, defaults to active buffer)"}}}
}}}
});
toolHandlers_["whetstone_file_diff"] = [this](const json& args) {
return callWhetstone("fileDiff", args);
};
// whetstone_workspace_list
tools_.push_back({"whetstone_workspace_list",
"List files in the workspace matching an optional glob pattern. "
"Respects .gitignore. Returns path, size, and isDir for each entry.",
{{"type", "object"}, {"properties", {
{"glob", {{"type", "string"}, {"description", "Glob pattern (default: *). E.g. *.py, *.cpp"}}}
}}}
});
toolHandlers_["whetstone_workspace_list"] = [this](const json& args) {
return callWhetstone("workspaceList", args);
};
}
// ---------------------------------------------------------------
// Register all tools
// ---------------------------------------------------------------
void registerWhetstoneTools() {
registerASTTools();
registerAnnotationTools();
registerFileTools();
}
};