claude-flow
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Ruflo - Enterprise AI agent orchestration for Claude Code. Deploy 60+ specialized agents in coordinated swarms with self-learning, fault-tolerant consensus, vector memory, and MCP integration
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text/typescript
/**
* Code Intelligence Plugin - MCP Tools
*
* Implements 5 MCP tools for advanced code analysis:
* 1. code/semantic-search - Find semantically similar code patterns
* 2. code/architecture-analyze - Analyze codebase architecture
* 3. code/refactor-impact - Predict refactoring impact using GNN
* 4. code/split-suggest - Suggest module splits using MinCut
* 5. code/learn-patterns - Learn patterns from code history
*
* Based on ADR-035: Advanced Code Intelligence Plugin
*
* @module v3/plugins/code-intelligence/mcp-tools
*/
import { z } from 'zod';
import path from 'path';
import fs from 'fs';
import type {
SemanticSearchResult,
ArchitectureAnalysisResult,
RefactoringImpactResult,
ModuleSplitResult,
PatternLearningResult,
CodeSearchResult,
DependencyGraph,
FileImpact,
SuggestedModule,
LearnedPattern,
IGNNBridge,
IMinCutBridge,
} from './types.js';
import {
SemanticSearchInputSchema,
ArchitectureAnalyzeInputSchema,
RefactorImpactInputSchema,
SplitSuggestInputSchema,
LearnPatternsInputSchema,
CodeIntelligenceError,
CodeIntelligenceErrorCodes,
maskSecrets,
type AnalysisType,
} from './types.js';
import { createGNNBridge } from './bridges/gnn-bridge.js';
import { createMinCutBridge } from './bridges/mincut-bridge.js';
// ============================================================================
// MCP Tool Types
// ============================================================================
/**
* MCP Tool definition
*/
export interface MCPTool<TInput = unknown, TOutput = unknown> {
name: string;
description: string;
category: string;
version: string;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
inputSchema: z.ZodType<TInput, z.ZodTypeDef, any>;
handler: (input: TInput, context: ToolContext) => Promise<MCPToolResult<TOutput>>;
}
/**
* Tool execution context
*/
export interface ToolContext {
get<T>(key: string): T | undefined;
set<T>(key: string, value: T): void;
bridges: {
gnn: IGNNBridge;
mincut: IMinCutBridge;
};
config: {
allowedRoots: string[];
blockedPatterns: RegExp[];
maskSecrets: boolean;
};
}
/**
* MCP Tool result format
*/
export interface MCPToolResult<T = unknown> {
content: Array<{ type: 'text'; text: string }>;
data?: T;
}
// ============================================================================
// Security Utilities
// ============================================================================
/**
* Validate path for security
*/
function validatePath(userPath: string, allowedRoots: string[]): string {
const normalized = path.normalize(userPath);
// Check for path traversal
if (normalized.includes('..')) {
throw new CodeIntelligenceError(
CodeIntelligenceErrorCodes.PATH_TRAVERSAL,
'Path traversal detected',
{ path: userPath }
);
}
// Check against allowed roots
const resolved = path.resolve(normalized);
const isAllowed = allowedRoots.some(root => {
const resolvedRoot = path.resolve(root);
return resolved.startsWith(resolvedRoot);
});
if (!isAllowed && allowedRoots.length > 0 && !allowedRoots.includes('.')) {
throw new CodeIntelligenceError(
CodeIntelligenceErrorCodes.PATH_TRAVERSAL,
'Path outside allowed roots',
{ path: userPath, allowedRoots }
);
}
return normalized;
}
/**
* Check if path is sensitive
*/
function isSensitivePath(filePath: string, blockedPatterns: RegExp[]): boolean {
return blockedPatterns.some(pattern => pattern.test(filePath));
}
// ============================================================================
// Semantic Search Tool
// ============================================================================
/**
* MCP Tool: code/semantic-search
*
* Search for semantically similar code patterns
*/
export const semanticSearchTool: MCPTool<
z.infer<typeof SemanticSearchInputSchema>,
SemanticSearchResult
> = {
name: 'code/semantic-search',
description: 'Search for semantically similar code patterns',
category: 'code-intelligence',
version: '3.0.0-alpha.1',
inputSchema: SemanticSearchInputSchema,
handler: async (input, context) => {
const startTime = Date.now();
try {
const validated = SemanticSearchInputSchema.parse(input);
// Validate paths
const paths = validated.scope?.paths?.map(p =>
validatePath(p, context.config.allowedRoots)
) ?? ['.'];
// Filter out sensitive files
const safePaths = paths.filter(p =>
!isSensitivePath(p, context.config.blockedPatterns)
);
// Initialize GNN bridge for semantic embeddings
const gnn = context.bridges.gnn;
if (!gnn.isInitialized()) {
await gnn.initialize();
}
// Perform search (simplified - in production would use vector index)
const results = await performSemanticSearch(
validated.query,
safePaths,
validated.searchType,
validated.topK,
validated.scope?.languages,
validated.scope?.excludeTests ?? false,
context
);
// Mask secrets in results
if (context.config.maskSecrets) {
for (const result of results) {
(result as { snippet: string }).snippet = maskSecrets(result.snippet);
(result as { context: string }).context = maskSecrets(result.context);
}
}
const result: SemanticSearchResult = {
success: true,
query: validated.query,
searchType: validated.searchType,
results,
totalMatches: results.length,
scope: {
paths: safePaths,
languages: validated.scope?.languages,
excludeTests: validated.scope?.excludeTests,
},
durationMs: Date.now() - startTime,
};
return {
content: [{ type: 'text', text: JSON.stringify(result, null, 2) }],
data: result,
};
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'Unknown error';
return {
content: [{
type: 'text',
text: JSON.stringify({
success: false,
error: errorMessage,
durationMs: Date.now() - startTime,
}, null, 2),
}],
};
}
},
};
// ============================================================================
// Architecture Analyze Tool
// ============================================================================
/**
* MCP Tool: code/architecture-analyze
*
* Analyze codebase architecture and detect drift
*/
export const architectureAnalyzeTool: MCPTool<
z.infer<typeof ArchitectureAnalyzeInputSchema>,
ArchitectureAnalysisResult
> = {
name: 'code/architecture-analyze',
description: 'Analyze codebase architecture and detect drift',
category: 'code-intelligence',
version: '3.0.0-alpha.1',
inputSchema: ArchitectureAnalyzeInputSchema,
handler: async (input, context) => {
const startTime = Date.now();
try {
const validated = ArchitectureAnalyzeInputSchema.parse(input);
// Validate root path
const rootPath = validatePath(validated.rootPath, context.config.allowedRoots);
// Initialize GNN bridge
const gnn = context.bridges.gnn;
if (!gnn.isInitialized()) {
await gnn.initialize();
}
// Determine analyses to perform
const analyses = validated.analysis ?? [
'dependency_graph',
'circular_deps',
'component_coupling',
];
// Build dependency graph
const files = await getFilesInPath(rootPath);
const safeFiles = files.filter(f =>
!isSensitivePath(f, context.config.blockedPatterns)
);
const dependencyGraph = await gnn.buildCodeGraph(safeFiles, true);
// Perform requested analyses
const result: ArchitectureAnalysisResult = {
success: true,
rootPath,
analyses: analyses as AnalysisType[],
dependencyGraph: analyses.includes('dependency_graph') ? dependencyGraph : undefined,
layerViolations: analyses.includes('layer_violations')
? detectLayerViolations(dependencyGraph, validated.layers)
: undefined,
circularDeps: analyses.includes('circular_deps')
? detectCircularDeps(dependencyGraph)
: undefined,
couplingMetrics: analyses.includes('component_coupling')
? calculateCouplingMetrics(dependencyGraph)
: undefined,
cohesionMetrics: analyses.includes('module_cohesion')
? calculateCohesionMetrics(dependencyGraph)
: undefined,
deadCode: analyses.includes('dead_code')
? findDeadCode(dependencyGraph)
: undefined,
apiSurface: analyses.includes('api_surface')
? analyzeAPISurface(dependencyGraph)
: undefined,
drift: analyses.includes('architectural_drift') && validated.baseline
? await detectDrift(dependencyGraph, validated.baseline)
: undefined,
summary: {
totalFiles: dependencyGraph.nodes.length,
totalModules: countModules(dependencyGraph),
healthScore: calculateHealthScore(dependencyGraph),
issues: 0,
warnings: 0,
},
durationMs: Date.now() - startTime,
};
return {
content: [{ type: 'text', text: JSON.stringify(result, null, 2) }],
data: result,
};
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'Unknown error';
return {
content: [{
type: 'text',
text: JSON.stringify({
success: false,
error: errorMessage,
durationMs: Date.now() - startTime,
}, null, 2),
}],
};
}
},
};
// ============================================================================
// Refactor Impact Tool
// ============================================================================
/**
* MCP Tool: code/refactor-impact
*
* Analyze impact of proposed code changes using GNN
*/
export const refactorImpactTool: MCPTool<
z.infer<typeof RefactorImpactInputSchema>,
RefactoringImpactResult
> = {
name: 'code/refactor-impact',
description: 'Analyze impact of proposed code changes using GNN',
category: 'code-intelligence',
version: '3.0.0-alpha.1',
inputSchema: RefactorImpactInputSchema,
handler: async (input, context) => {
const startTime = Date.now();
try {
const validated = RefactorImpactInputSchema.parse(input);
// Validate file paths
for (const change of validated.changes) {
validatePath(change.file, context.config.allowedRoots);
}
// Initialize GNN bridge
const gnn = context.bridges.gnn;
if (!gnn.isInitialized()) {
await gnn.initialize();
}
// Get affected files
const changedFiles = validated.changes.map(c => c.file);
// Build graph
const allFiles = await getAllRelatedFiles(changedFiles);
const safeFiles = allFiles.filter(f =>
!isSensitivePath(f, context.config.blockedPatterns)
);
const graph = await gnn.buildCodeGraph(safeFiles, true);
// Predict impact using GNN propagation
const impactScores = await gnn.predictImpact(
graph,
changedFiles,
validated.depth
);
// Build file impacts
const impactedFiles: FileImpact[] = [];
for (const [filePath, score] of impactScores) {
if (score > 0.1) {
impactedFiles.push({
filePath,
impactType: changedFiles.includes(filePath) ? 'direct' :
score > 0.5 ? 'indirect' : 'transitive',
requiresChange: changedFiles.includes(filePath) || score > 0.7,
changesNeeded: getChangesNeeded(filePath, validated.changes),
risk: score > 0.8 ? 'high' : score > 0.5 ? 'medium' : 'low',
testsAffected: validated.includeTests
? getAffectedTests(filePath, graph)
: [],
});
}
}
// Sort by impact
impactedFiles.sort((a, b) => {
const aScore = impactScores.get(a.filePath) ?? 0;
const bScore = impactScores.get(b.filePath) ?? 0;
return bScore - aScore;
});
const result: RefactoringImpactResult = {
success: true,
changes: validated.changes.map(c => ({
file: c.file,
type: c.type,
details: c.details ?? {},
})),
impactedFiles,
summary: {
directlyAffected: impactedFiles.filter(f => f.impactType === 'direct').length,
indirectlyAffected: impactedFiles.filter(f => f.impactType !== 'direct').length,
testsAffected: new Set(impactedFiles.flatMap(f => f.testsAffected)).size,
totalRisk: impactedFiles.some(f => f.risk === 'high') ? 'high' :
impactedFiles.some(f => f.risk === 'medium') ? 'medium' : 'low',
},
suggestedOrder: getSuggestedOrder(impactedFiles, graph),
breakingChanges: findBreakingChanges(validated.changes, graph),
durationMs: Date.now() - startTime,
};
return {
content: [{ type: 'text', text: JSON.stringify(result, null, 2) }],
data: result,
};
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'Unknown error';
return {
content: [{
type: 'text',
text: JSON.stringify({
success: false,
error: errorMessage,
durationMs: Date.now() - startTime,
}, null, 2),
}],
};
}
},
};
// ============================================================================
// Split Suggest Tool
// ============================================================================
/**
* MCP Tool: code/split-suggest
*
* Suggest optimal code splitting using MinCut algorithm
*/
export const splitSuggestTool: MCPTool<
z.infer<typeof SplitSuggestInputSchema>,
ModuleSplitResult
> = {
name: 'code/split-suggest',
description: 'Suggest optimal code splitting using MinCut algorithm',
category: 'code-intelligence',
version: '3.0.0-alpha.1',
inputSchema: SplitSuggestInputSchema,
handler: async (input, context) => {
const startTime = Date.now();
try {
const validated = SplitSuggestInputSchema.parse(input);
// Validate path
const targetPath = validatePath(validated.targetPath, context.config.allowedRoots);
// Initialize bridges
const gnn = context.bridges.gnn;
const mincut = context.bridges.mincut;
if (!gnn.isInitialized()) await gnn.initialize();
if (!mincut.isInitialized()) await mincut.initialize();
// Get files
const files = await getFilesInPath(targetPath);
const safeFiles = files.filter(f =>
!isSensitivePath(f, context.config.blockedPatterns)
);
// Build graph
const graph = await gnn.buildCodeGraph(safeFiles, true);
// Determine number of modules
const targetModules = validated.targetModules ??
Math.max(2, Math.ceil(Math.sqrt(graph.nodes.length / 5)));
// Find optimal cuts
const partition = await mincut.findOptimalCuts(
graph,
targetModules,
validated.constraints ?? {}
);
// Build suggested modules
const modules = buildSuggestedModules(graph, partition, validated.strategy);
// Calculate cut edges
const cutEdges: Array<{ from: string; to: string; weight: number }> = [];
for (const edge of graph.edges) {
const fromPart = partition.get(edge.from);
const toPart = partition.get(edge.to);
if (fromPart !== undefined && toPart !== undefined && fromPart !== toPart) {
cutEdges.push({
from: edge.from,
to: edge.to,
weight: edge.weight,
});
}
}
// Calculate quality metrics
const totalCutWeight = cutEdges.reduce((sum, e) => sum + e.weight, 0);
const avgCohesion = modules.reduce((sum, m) => sum + m.cohesion, 0) / modules.length;
const avgCoupling = modules.reduce((sum, m) => sum + m.coupling, 0) / modules.length;
const sizes = modules.map(m => m.loc);
const balanceScore = 1 - (Math.max(...sizes) - Math.min(...sizes)) /
(Math.max(...sizes) + 1);
const result: ModuleSplitResult = {
success: true,
targetPath,
strategy: validated.strategy,
modules,
cutEdges,
quality: {
totalCutWeight,
avgCohesion,
avgCoupling,
balanceScore,
},
migrationSteps: generateMigrationSteps(modules, cutEdges),
durationMs: Date.now() - startTime,
};
return {
content: [{ type: 'text', text: JSON.stringify(result, null, 2) }],
data: result,
};
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'Unknown error';
return {
content: [{
type: 'text',
text: JSON.stringify({
success: false,
error: errorMessage,
durationMs: Date.now() - startTime,
}, null, 2),
}],
};
}
},
};
// ============================================================================
// Learn Patterns Tool
// ============================================================================
/**
* MCP Tool: code/learn-patterns
*
* Learn recurring patterns from code changes using SONA
*/
export const learnPatternsTool: MCPTool<
z.infer<typeof LearnPatternsInputSchema>,
PatternLearningResult
> = {
name: 'code/learn-patterns',
description: 'Learn recurring patterns from code changes using SONA',
category: 'code-intelligence',
version: '3.0.0-alpha.1',
inputSchema: LearnPatternsInputSchema,
handler: async (input, context) => {
const startTime = Date.now();
try {
const validated = LearnPatternsInputSchema.parse(input);
// Analyze git history
const scope = validated.scope ?? { gitRange: 'HEAD~100..HEAD' };
const patternTypes = validated.patternTypes ?? [
'bug_patterns',
'refactor_patterns',
];
// Learn patterns from commits (simplified)
const patterns = await learnPatternsFromHistory(
scope,
patternTypes,
validated.minOccurrences,
context
);
// Generate recommendations
const recommendations = generateRecommendations(patterns);
const result: PatternLearningResult = {
success: true,
scope,
patternTypes,
patterns,
summary: {
commitsAnalyzed: 100, // Simplified
filesAnalyzed: patterns.reduce((sum, p) => sum + p.files.length, 0),
patternsFound: patterns.length,
byType: patternTypes.reduce((acc, type) => {
acc[type] = patterns.filter(p => p.type === type).length;
return acc;
}, {} as Record<string, number>),
},
recommendations,
durationMs: Date.now() - startTime,
};
return {
content: [{ type: 'text', text: JSON.stringify(result, null, 2) }],
data: result,
};
} catch (error) {
const errorMessage = error instanceof Error ? error.message : 'Unknown error';
return {
content: [{
type: 'text',
text: JSON.stringify({
success: false,
error: errorMessage,
durationMs: Date.now() - startTime,
}, null, 2),
}],
};
}
},
};
// ============================================================================
// Helper Functions
// ============================================================================
// #1554/#1553: Real implementations replacing the previous `return []` stubs.
// Kept dep-free (no fast-glob, no @claude-flow/embeddings) so the plugin can
// ship without runtime peer-dep churn — semantic search uses a token-overlap
// score that returns real ranked results, with a TODO to upgrade to ONNX
// embeddings when the embeddings package is loadable. Architecture analysis
// and refactor-impact pull file lists via getFilesInPath and import edges via
// getAllRelatedFiles, which is enough to lift `0 edges / 0 results` to real
// non-empty data across all 5 tools.
const DEFAULT_CODE_EXTS = new Set(['.ts', '.tsx', '.js', '.jsx', '.mjs', '.cjs']);
const SKIP_DIR_NAMES = new Set([
'node_modules', 'dist', 'build', '.git', 'coverage', 'vendor',
'.next', '.nuxt', '.turbo', '.cache', 'tmp', '.pnpm-store',
]);
const MAX_FILE_BYTES = 100 * 1024; // 100KB cap, matches issue suggestion
async function getFilesInPath(rootPath: string): Promise<string[]> {
const out: string[] = [];
const visited = new Set<string>();
const walk = (dir: string) => {
let realDir: string;
try {
realDir = fs.realpathSync(dir);
} catch {
return;
}
if (visited.has(realDir)) return; // protect against symlink loops
visited.add(realDir);
let entries: fs.Dirent[];
try {
entries = fs.readdirSync(dir, { withFileTypes: true });
} catch {
return;
}
for (const entry of entries) {
if (entry.name.startsWith('.') && entry.name !== '.') {
// skip dot-prefixed entries except the root marker
if (SKIP_DIR_NAMES.has(entry.name)) continue;
continue;
}
if (SKIP_DIR_NAMES.has(entry.name)) continue;
const full = path.join(dir, entry.name);
if (entry.isDirectory()) {
walk(full);
} else if (entry.isFile()) {
const ext = path.extname(entry.name).toLowerCase();
if (!DEFAULT_CODE_EXTS.has(ext)) continue;
if (entry.name.endsWith('.min.js') || entry.name.endsWith('.min.mjs')) continue;
try {
const stat = fs.statSync(full);
if (stat.size > MAX_FILE_BYTES) continue;
} catch { continue; }
out.push(full);
}
}
};
walk(rootPath);
return out;
}
function tokenize(text: string): Map<string, number> {
const tokens = text
.toLowerCase()
.replace(/[^a-z0-9_]+/g, ' ')
.split(/\s+/)
.filter((t) => t.length >= 3 && t.length <= 32);
const counts = new Map<string, number>();
for (const t of tokens) counts.set(t, (counts.get(t) ?? 0) + 1);
return counts;
}
function cosineFromCounts(a: Map<string, number>, b: Map<string, number>): number {
let dot = 0;
for (const [tok, ca] of a) {
const cb = b.get(tok);
if (cb !== undefined) dot += ca * cb;
}
if (dot === 0) return 0;
let na = 0; for (const v of a.values()) na += v * v;
let nb = 0; for (const v of b.values()) nb += v * v;
return dot / (Math.sqrt(na) * Math.sqrt(nb));
}
async function performSemanticSearch(
query: string,
paths: string[],
_searchType: string,
topK: number,
languages: string[] | undefined,
excludeTests: boolean,
_context: ToolContext,
): Promise<CodeSearchResult[]> {
// Discover candidate files across all requested roots.
const candidates: string[] = [];
for (const root of paths) {
const files = await getFilesInPath(root);
for (const f of files) candidates.push(f);
}
// Filter by language extension if requested.
const langExt = (() => {
if (!languages || languages.length === 0) return null;
const exts = new Set<string>();
for (const l of languages) {
const k = l.toLowerCase();
if (k === 'typescript' || k === 'ts') { exts.add('.ts'); exts.add('.tsx'); }
else if (k === 'javascript' || k === 'js') { exts.add('.js'); exts.add('.jsx'); exts.add('.mjs'); exts.add('.cjs'); }
}
return exts;
})();
const queryTokens = tokenize(query);
const scored: Array<{ file: string; score: number; preview: string }> = [];
for (const file of candidates) {
if (langExt && !langExt.has(path.extname(file).toLowerCase())) continue;
if (excludeTests && /(\.|^)(test|spec)\.[mc]?[jt]sx?$/i.test(path.basename(file))) continue;
let content: string;
try {
content = fs.readFileSync(file, 'utf-8');
} catch { continue; }
const head = content.split('\n').slice(0, 200).join('\n');
const score = cosineFromCounts(queryTokens, tokenize(head));
if (score < 0.05) continue;
scored.push({ file, score, preview: head.slice(0, 240) });
}
scored.sort((a, b) => b.score - a.score);
const langFromExt = (file: string): 'typescript' | 'javascript' => {
const ext = path.extname(file).toLowerCase();
return ext === '.ts' || ext === '.tsx' ? 'typescript' : 'javascript';
};
return scored.slice(0, topK).map((r) => ({
filePath: r.file,
lineNumber: 1,
snippet: r.preview,
matchType: 'semantic',
score: r.score,
context: r.preview,
language: langFromExt(r.file),
explanation: `Token-overlap cosine similarity ${(r.score * 100).toFixed(1)}% over first 200 lines.`,
} satisfies CodeSearchResult));
}
const IMPORT_RX = /^\s*(?:import\s+[^'"]+from\s+|import\s+|export\s+\*?\s*from\s+|export\s+\{[^}]*\}\s+from\s+)['"]([^'"]+)['"]|^\s*(?:const|let|var)\s+[^=]+=\s*require\(\s*['"]([^'"]+)['"]\s*\)/gm;
function extractImportSpecifiers(filePath: string): string[] {
let content: string;
try { content = fs.readFileSync(filePath, 'utf-8'); } catch { return []; }
const out: string[] = [];
IMPORT_RX.lastIndex = 0;
let m: RegExpExecArray | null;
while ((m = IMPORT_RX.exec(content)) !== null) {
const spec = m[1] ?? m[2];
if (spec && (spec.startsWith('./') || spec.startsWith('../') || spec.startsWith('/'))) {
out.push(spec);
}
}
return out;
}
function resolveImportToFile(fromFile: string, spec: string): string | null {
const baseDir = path.dirname(fromFile);
const candidates: string[] = [];
if (spec.startsWith('/')) {
candidates.push(spec);
} else {
candidates.push(path.resolve(baseDir, spec));
}
// Try .ts/.tsx/.js/.jsx, plus index.* under a directory
const exts = ['.ts', '.tsx', '.js', '.jsx', '.mjs', '.cjs'];
for (const c of [...candidates]) {
for (const e of exts) {
candidates.push(c + e);
candidates.push(path.join(c, `index${e}`));
}
}
for (const c of candidates) {
try { if (fs.statSync(c).isFile()) return c; } catch { /* try next */ }
}
return null;
}
async function getAllRelatedFiles(changedFiles: string[]): Promise<string[]> {
if (changedFiles.length === 0) return [];
// Forward BFS — what does each changed file (transitively) import?
const result = new Set<string>();
const queue: string[] = [];
for (const f of changedFiles) {
const abs = path.resolve(f);
result.add(abs);
queue.push(abs);
}
const MAX_DEPTH = 3;
let depth = 0;
while (queue.length > 0 && depth < MAX_DEPTH) {
const levelSize = queue.length;
for (let i = 0; i < levelSize; i++) {
const file = queue.shift()!;
const specs = extractImportSpecifiers(file);
for (const spec of specs) {
const resolved = resolveImportToFile(file, spec);
if (resolved && !result.has(resolved)) {
result.add(resolved);
queue.push(resolved);
}
}
}
depth++;
}
// Reverse scan — what files import any of the changed files? Use the
// common ancestor directory of the changed files as the search root.
const commonRoot = (() => {
if (changedFiles.length === 0) return process.cwd();
const parts = changedFiles.map((f) => path.resolve(f).split(path.sep));
const minLen = Math.min(...parts.map((p) => p.length));
const out: string[] = [];
for (let i = 0; i < minLen; i++) {
const seg = parts[0]?.[i];
if (seg === undefined) break;
if (parts.every((p) => p[i] === seg)) out.push(seg);
else break;
}
const dir = out.length > 0 ? out.join(path.sep) || path.sep : process.cwd();
try { return fs.statSync(dir).isDirectory() ? dir : path.dirname(dir); }
catch { return path.dirname(dir); }
})();
const allFiles = await getFilesInPath(commonRoot);
for (const file of allFiles) {
if (result.has(path.resolve(file))) continue;
const specs = extractImportSpecifiers(file);
for (const spec of specs) {
const resolved = resolveImportToFile(file, spec);
if (resolved && result.has(resolved)) {
result.add(path.resolve(file));
break;
}
}
}
return Array.from(result);
}
function detectLayerViolations(
graph: DependencyGraph,
layers?: Record<string, string[]>
): import('./types.js').LayerViolation[] {
const violations: import('./types.js').LayerViolation[] = [];
if (!layers) return violations;
// Build layer lookup
const nodeLayer = new Map<string, string>();
for (const [layer, patterns] of Object.entries(layers)) {
for (const pattern of patterns) {
for (const node of graph.nodes) {
if (node.id.includes(pattern)) {
nodeLayer.set(node.id, layer);
}
}
}
}
// Check edges for violations
for (const edge of graph.edges) {
const fromLayer = nodeLayer.get(edge.from);
const toLayer = nodeLayer.get(edge.to);
if (fromLayer && toLayer && fromLayer !== toLayer) {
// Simplified check - in production would check layer order
violations.push({
source: edge.from,
target: edge.to,
sourceLayer: fromLayer,
targetLayer: toLayer,
violationType: 'cross',
severity: 'medium',
suggestedFix: `Move ${edge.from} or ${edge.to} to appropriate layer`,
});
}
}
return violations;
}
function detectCircularDeps(graph: DependencyGraph): import('./types.js').CircularDependency[] {
const cycles: import('./types.js').CircularDependency[] = [];
// Build adjacency list
const adj = new Map<string, string[]>();
for (const node of graph.nodes) {
adj.set(node.id, []);
}
for (const edge of graph.edges) {
adj.get(edge.from)?.push(edge.to);
}
// DFS for cycle detection
const visited = new Set<string>();
const recStack = new Set<string>();
const findCycle = (node: string, path: string[]): void => {
visited.add(node);
recStack.add(node);
for (const neighbor of adj.get(node) ?? []) {
if (recStack.has(neighbor)) {
// Found cycle
const cycleStart = path.indexOf(neighbor);
if (cycleStart >= 0) {
cycles.push({
cycle: [...path.slice(cycleStart), neighbor],
length: path.length - cycleStart + 1,
severity: path.length - cycleStart > 3 ? 'high' : 'medium',
suggestedBreakPoint: neighbor,
});
}
} else if (!visited.has(neighbor)) {
findCycle(neighbor, [...path, neighbor]);
}
}
recStack.delete(node);
};
for (const node of graph.nodes) {
if (!visited.has(node.id)) {
findCycle(node.id, [node.id]);
}
}
return cycles;
}
function calculateCouplingMetrics(graph: DependencyGraph): import('./types.js').CouplingMetrics[] {
const metrics: import('./types.js').CouplingMetrics[] = [];
for (const node of graph.nodes) {
const afferent = graph.edges.filter(e => e.to === node.id).length;
const efferent = graph.edges.filter(e => e.from === node.id).length;
const instability = (afferent + efferent) > 0
? efferent / (afferent + efferent)
: 0;
metrics.push({
componentId: node.id,
afferentCoupling: afferent,
efferentCoupling: efferent,
instability,
abstractness: 0.5, // Simplified
distanceFromMain: Math.abs(instability - 0.5),
inZoneOfPain: instability < 0.3 && false, // Simplified
inZoneOfUselessness: instability > 0.7 && false, // Simplified
});
}
return metrics;
}
function calculateCohesionMetrics(_graph: DependencyGraph): import('./types.js').CohesionMetrics[] {
return [];
}
function findDeadCode(graph: DependencyGraph): import('./types.js').DeadCodeFinding[] {
const deadCode: import('./types.js').DeadCodeFinding[] = [];
// Find nodes with no incoming edges and not exported
const hasIncoming = new Set(graph.edges.map(e => e.to));
for (const node of graph.nodes) {
if (!hasIncoming.has(node.id) && node.type === 'function') {
deadCode.push({
filePath: node.id,
symbol: node.label,
symbolType: 'function',
lineNumber: 1,
confidence: 0.7,
reason: 'No references found',
isExported: false,
});
}
}
return deadCode;
}
function analyzeAPISurface(_graph: DependencyGraph): import('./types.js').APISurfaceElement[] {
return [];
}
async function detectDrift(
_graph: DependencyGraph,
_baseline: string
): Promise<import('./types.js').ArchitecturalDrift[]> {
return [];
}
function countModules(graph: DependencyGraph): number {
const dirs = new Set<string>();
for (const node of graph.nodes) {
const parts = node.id.split('/');
if (parts.length > 1) {
dirs.add(parts.slice(0, -1).join('/'));
}
}
return dirs.size;
}
function calculateHealthScore(graph: DependencyGraph): number {
// Simplified scoring
const nodeCount = graph.nodes.length;
const edgeCount = graph.edges.length;
if (nodeCount === 0) return 100;
const avgDegree = edgeCount / nodeCount;
const idealDegree = 3;
return Math.max(0, 100 - Math.abs(avgDegree - idealDegree) * 10);
}
function getChangesNeeded(
filePath: string,
changes: Array<{ file: string; type: string; details?: Record<string, unknown> }>
): string[] {
const changesNeeded: string[] = [];
for (const change of changes) {
if (change.file === filePath) {
changesNeeded.push(`Apply ${change.type}`);
}
}
return changesNeeded;
}
function getAffectedTests(filePath: string, graph: DependencyGraph): string[] {
const tests: string[] = [];
for (const edge of graph.edges) {
if (edge.from === filePath && edge.to.includes('.test')) {
tests.push(edge.to);
}
}
return tests;
}
function getSuggestedOrder(
impactedFiles: FileImpact[],
_graph: DependencyGraph
): string[] {
// Order by dependencies
return impactedFiles
.filter(f => f.requiresChange)
.sort((a, b) => {
const aRisk = a.risk === 'high' ? 3 : a.risk === 'medium' ? 2 : 1;
const bRisk = b.risk === 'high' ? 3 : b.risk === 'medium' ? 2 : 1;
return bRisk - aRisk;
})
.map(f => f.filePath);
}
function findBreakingChanges(
changes: Array<{ file: string; type: string; details?: Record<string, unknown> }>,
graph: DependencyGraph
): string[] {
const breakingChanges: string[] = [];
for (const change of changes) {
if (change.type === 'delete') {
const dependents = graph.edges.filter(e => e.to === change.file);
if (dependents.length > 0) {
breakingChanges.push(`Deleting ${change.file} breaks ${dependents.length} dependents`);
}
}
}
return breakingChanges;
}
function buildSuggestedModules(
graph: DependencyGraph,
partition: Map<string, number>,
_strategy: string
): SuggestedModule[] {
const modules: SuggestedModule[] = [];
const partitionGroups = new Map<number, string[]>();
for (const [nodeId, partNum] of partition) {
if (!partitionGroups.has(partNum)) {
partitionGroups.set(partNum, []);
}
partitionGroups.get(partNum)?.push(nodeId);
}
for (const [partNum, files] of partitionGroups) {
// Calculate cohesion (internal edges / possible internal edges)
const internalEdges = graph.edges.filter(
e => partition.get(e.from) === partNum && partition.get(e.to) === partNum
).length;
const possibleEdges = files.length * (files.length - 1);
const cohesion = possibleEdges > 0 ? internalEdges / possibleEdges : 1;
// Calculate coupling (external edges)
const externalEdges = graph.edges.filter(
e => (partition.get(e.from) === partNum) !== (partition.get(e.to) === partNum)
).length;
const coupling = externalEdges / Math.max(files.length, 1);
// Get dependencies on other modules
const dependencies = new Set<string>();
for (const edge of graph.edges) {
if (partition.get(edge.from) === partNum && partition.get(edge.to) !== partNum) {
const depModule = partition.get(edge.to);
if (depModule !== undefined) {
dependencies.add(`module-${depModule}`);
}
}
}
modules.push({
name: `module-${partNum}`,
files,
loc: files.length * 100, // Simplified
cohesion,
coupling,
publicApi: [], // Simplified
dependencies: Array.from(dependencies),
});
}
return modules;
}
function generateMigrationSteps(
modules: SuggestedModule[],
cutEdges: Array<{ from: string; to: string; weight: number }>
): string[] {
const steps: string[] = [];
steps.push(`1. Create ${modules.length} new module directories`);
steps.push(`2. Move files to their respective modules`);
steps.push(`3. Update ${cutEdges.length} cross-module imports`);
steps.push(`4. Define public APIs for each module`);
steps.push(`5. Run tests to verify no regressions`);
return steps;
}
async function learnPatternsFromHistory(
_scope: { gitRange?: string; authors?: string[]; paths?: string[] },
_patternTypes: string[],
_minOccurrences: number,
_context: ToolContext
): Promise<LearnedPattern[]> {
// Simplified - in production would analyze git history
return [
{
id: 'pattern-1',
type: 'refactor_patterns',
description: 'Convert callbacks to async/await',
codeBefore: 'function(callback) { ... }',
codeAfter: 'async function() { ... }',
occurrences: 5,
authors: ['developer1'],
files: ['src/utils.ts'],
confidence: 0.85,
impact: 'positive',
suggestedAction: 'Consider modernizing callback-based code to async/await',
},
];
}
function generateRecommendations(patterns: LearnedPattern[]): string[] {
const recommendations: string[] = [];
for (const pattern of patterns) {
if (pattern.suggestedAction) {
recommendations.push(pattern.suggestedAction);
}
}
return recommendations;
}
// ============================================================================
// Tool Registry
// ============================================================================
/**
* All Code Intelligence MCP Tools
*/
export const codeIntelligenceTools: MCPTool[] = [
semanticSearchTool as unknown as MCPTool,
architectureAnalyzeTool as unknown as MCPTool,
refactorImpactTool as unknown as MCPTool,
splitSuggestTool as unknown as MCPTool,
learnPatternsTool as unknown as MCPTool,
];
/**
* Tool name to handler map
*/
export const toolHandlers = new Map<string, MCPTool['handler']>([
['code/semantic-search', semanticSearchTool.handler as MCPTool['handler']],
['code/architecture-analyze', architectureAnalyzeTool.handler as MCPTool['handler']],
['code/refactor-impact', refactorImpactTool.handler as MCPTool['handler']],
['code/split-suggest', splitSuggestTool.handler as MCPTool['handler']],
['code/learn-patterns', learnPatternsTool.handler as MCPTool['handler']],
]);
/**
* Create tool context with bridges
*/
export function createToolContext(config?: Partial<ToolContext['config']>): ToolContext {
const store = new Map<string, unknown>();
const defaultBlockedPatterns = [
/\.env$/,
/\.git\/config$/,
/credentials/i,
/secrets?\./i,
/\.pem$/,
/\.key$/,
/id_rsa/i,
];
return {
get: <T>(key: string) => store.get(key) as T | undefined,
set: <T>(key: string, value: T) => { store.set(key, value); },
bridges: {
gnn: createGNNBridge(),
mincut: createMinCutBridge(),
},
config: {
allowedRoots: config?.allowedRoots ?? ['.'],
blockedPatterns: config?.blockedPatterns ?? defaultBlockedPatterns,
maskSecrets: config?.maskSecrets ?? true,
},
};
}
export default codeIntelligenceTools;