@razorpay/blade-mcp
Version:
Model Context Protocol server for Blade
98 lines • 4.94 kB
JavaScript
import { readFileSync } from 'fs';
import { join, basename } from 'path';
import { z } from 'zod';
import { analyticsToolCallEventName, PATTERNS_KNOWLEDGEBASE_DIRECTORY } from '../utils/tokens.js';
import { getBladeDocsList } from '../utils/generalUtils.js';
import { handleError, sendAnalytics } from '../utils/analyticsUtils.js';
import { getBladeDocsResponseText } from '../utils/getBladeDocsResponseText.js';
import { shouldCreateOrUpdateCursorRule } from '../utils/cursorRulesUtils.js';
import { commonBladeMCPToolSchema, httpTransportCursorRuleVersionSchema, } from '../utils/getCommonSchema.js';
import { getBladeComponentDocsToolName } from './getBladeComponentDocs.js';
const bladePatternsList = getBladeDocsList('patterns');
const whichPatternToUseGuide = readFileSync(join(PATTERNS_KNOWLEDGEBASE_DIRECTORY, 'index.md'), 'utf8');
const getBladePatternDocsToolName = 'get_blade_pattern_docs';
const getBladePatternDocsToolDescription = `Fetch the Blade Design System pattern docs. Use this to get information about design patterns, best practices, and implementation guidelines.`;
// Schema for stdio transport
const getBladePatternDocsStdioSchema = {
patternsList: z
.string()
.describe(`Comma separated list of blade pattern names. E.g. "ListView, DetailedView". Possible values: ${bladePatternsList.join(', ')}. Here is guide on how to decide which pattern to use: ${whichPatternToUseGuide}`),
...commonBladeMCPToolSchema,
};
// Schema for HTTP transport
const getBladePatternDocsHttpSchema = {
...getBladePatternDocsStdioSchema,
...httpTransportCursorRuleVersionSchema,
};
// Core business logic function
const getBladePatternDocsCore = ({ patternsList, currentProjectRootDirectory, skipLocalCursorRuleChecks = false, cursorRuleVersion, clientName, }) => {
const components = patternsList.split(',').map((s) => s.trim());
const invalidComponents = components.filter((comp) => !bladePatternsList.includes(comp));
if (invalidComponents.length > 0) {
return handleError({
toolName: getBladePatternDocsToolName,
mcpErrorMessage: `Invalid argument componentsList. Invalid values: ${invalidComponents.join(', ')}. Valid component docs values: ${bladePatternsList.join(', ')}. Make sure to call the parent component name (e.g. instead of calling ListViewFilters, call ListView)`,
});
}
// Check cursor rules using shouldCreateOrUpdateCursorRule which handles both file system and version checks
if (currentProjectRootDirectory) {
const createOrUpdateCursorRule = shouldCreateOrUpdateCursorRule(cursorRuleVersion, clientName, currentProjectRootDirectory, skipLocalCursorRuleChecks, getBladePatternDocsToolName);
if (createOrUpdateCursorRule) {
return createOrUpdateCursorRule;
}
}
try {
const responseText = getBladeDocsResponseText({
docsList: patternsList,
documentationType: 'patterns',
});
// Return the formatted response
sendAnalytics({
eventName: analyticsToolCallEventName,
properties: {
toolName: getBladePatternDocsToolName,
patternsList,
rootDirectoryName: currentProjectRootDirectory
? basename(currentProjectRootDirectory)
: undefined,
cursorRuleVersion,
clientName,
},
});
return {
content: [
{
type: 'text',
text: `Below is the documentation for Patterns. After this, call ${getBladeComponentDocsToolName} to get documentation for components that are used in patterns.:\n ${responseText}`,
},
],
};
}
catch (error) {
return handleError({
toolName: getBladePatternDocsToolName,
errorObject: error,
});
}
};
// Callback for stdio transport
const getBladePatternDocsStdioCallback = ({ patternsList, currentProjectRootDirectory, clientName, }) => {
return getBladePatternDocsCore({
patternsList,
currentProjectRootDirectory,
skipLocalCursorRuleChecks: false, // Perform cursor rule checks for stdio
clientName,
});
};
// Callback for HTTP transport
const getBladePatternDocsHttpCallback = ({ patternsList, cursorRuleVersion, clientName, currentProjectRootDirectory, }) => {
return getBladePatternDocsCore({
patternsList,
currentProjectRootDirectory,
skipLocalCursorRuleChecks: true, // Skip cursor rule checks for HTTP
cursorRuleVersion,
clientName,
});
};
export { getBladePatternDocsToolName, getBladePatternDocsToolDescription, getBladePatternDocsStdioCallback, getBladePatternDocsHttpCallback, getBladePatternDocsStdioSchema, getBladePatternDocsHttpSchema, };
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