Claudemem Semantic Code Search Expert (v0.4.0)

This Skill provides comprehensive guidance on leveraging claudemem v0.4.0 with AST-based structural analysis and code analysis commands for intelligent codebase understanding.

What's New in v0.3.0

┌─────────────────────────────────────────────────────────────────┐
│                  CLAUDEMEM v0.3.0 ARCHITECTURE                   │
├─────────────────────────────────────────────────────────────────┤
│                                                                  │
│  ┌───────────────────────────────────────────────────────────┐  │
│  │                 AST STRUCTURAL LAYER ⭐NEW                  │  │
│  │  Tree-sitter Parse → Symbol Graph → PageRank Ranking       │  │
│  │  map | symbol | callers | callees | context                │  │
│  └───────────────────────────────────────────────────────────┘  │
│                              ↓                                   │
│  ┌───────────────────────────────────────────────────────────┐  │
│  │                    SEARCH LAYER                             │  │
│  │  Query → Embed → Vector Search + BM25 → Ranked Results     │  │
│  └───────────────────────────────────────────────────────────┘  │
│                              ↓                                   │
│  ┌───────────────────────────────────────────────────────────┐  │
│  │                     INDEX LAYER                             │  │
│  │  AST Parse → Chunk → Embed → LanceDB + Symbol Graph        │  │
│  └───────────────────────────────────────────────────────────┘  │
│                                                                  │
└─────────────────────────────────────────────────────────────────┘

Key Innovation: Structural Understanding

v0.3.0 adds AST tree navigation with symbol graph analysis:

• PageRank ranking - Symbols ranked by importance (how connected they are)
• Call graph analysis - Track callers/callees for impact assessment
• Structural overview - Map the codebase before reading code

---

Quick Reference

# Always run with --nologo for clean output
claudemem --nologo <command>

# Core commands for agents
claudemem map [query]              # Get structural overview (repo map)
claudemem symbol <name>            # Find symbol definition
claudemem callers <name>           # What calls this symbol?
claudemem callees <name>           # What does this symbol call?
claudemem context <name>           # Full context (symbol + dependencies)
claudemem search <query>           # Semantic search with --raw for parsing
claudemem search <query> --map     # Search + include repo map context

---

Version Compatibility

Claudemem has evolved significantly. Check your version before using commands:

claudemem --version

Command Availability by Version

Command	Minimum Version	Status	Purpose
map	v0.3.0	✅ Available	Architecture overview with PageRank
symbol	v0.3.0	✅ Available	Find exact file:line location
callers	v0.3.0	✅ Available	What calls this symbol?
callees	v0.3.0	✅ Available	What does this symbol call?
context	v0.3.0	✅ Available	Full call chain (callers + callees)
search	v0.3.0	✅ Available	Semantic vector search
dead-code	v0.4.0+	⚠️ Check version	Find unused symbols
test-gaps	v0.4.0+	⚠️ Check version	Find high-importance untested code
impact	v0.4.0+	⚠️ Check version	BFS transitive caller analysis

Version Detection in Scripts

# Get version number
VERSION=$(claudemem --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1)

# Check if v0.4.0+ features available
if [ -n "$VERSION" ] && printf '%s\n' "0.4.0" "$VERSION" | sort -V -C; then
  # v0.4.0+ available
  claudemem --nologo dead-code --raw
  claudemem --nologo test-gaps --raw
  claudemem --nologo impact SymbolName --raw
else
  echo "Code analysis commands require claudemem v0.4.0+"
  echo "Current version: $VERSION"
  echo "Fallback to v0.3.0 commands (map, symbol, callers, callees)"
fi

Graceful Degradation

When using v0.4.0+ commands, always provide fallback:

# Try impact analysis (v0.4.0+), fallback to callers (v0.3.0)
IMPACT=$(claudemem --nologo impact SymbolName --raw 2>/dev/null)
if [ -n "$IMPACT" ] && [ "$IMPACT" != "command not found" ]; then
  echo "$IMPACT"
else
  echo "Using fallback (direct callers only):"
  claudemem --nologo callers SymbolName --raw
fi

Why This Matters:

• v0.3.0 commands work for 90% of use cases (navigation, modification)
• v0.4.0+ commands are specialized (code analysis, cleanup planning)
• Scripts should work across versions with appropriate fallbacks

---

The Correct Workflow ⭐CRITICAL

Phase 1: Understand Structure First (ALWAYS DO THIS)

Before reading any code files, get the structural overview:

# For a specific task, get focused repo map
claudemem --nologo map "authentication flow" --raw

# Output shows relevant symbols ranked by importance (PageRank):
# file: src/auth/AuthService.ts
# line: 15-89
# kind: class
# name: AuthService
# pagerank: 0.0921
# signature: class AuthService
# ---
# file: src/middleware/auth.ts
# ...

This tells you:

• Which files contain relevant code
• Which symbols are most important (high PageRank = heavily used)
• The structure before you read actual code

Phase 2: Locate Specific Symbols

Once you know what to look for:

# Find exact location of a symbol
claudemem --nologo symbol AuthService --raw

# Output:
# file: src/auth/AuthService.ts
# line: 15-89
# kind: class
# name: AuthService
# signature: class AuthService implements IAuthProvider
# exported: true
# pagerank: 0.0921
# docstring: Handles user authentication and session management

Phase 3: Understand Dependencies

Before modifying code, understand what depends on it:

# What calls AuthService? (impact of changes)
claudemem --nologo callers AuthService --raw

# Output:
# caller: LoginController.authenticate
# file: src/controllers/login.ts
# line: 34
# kind: call
# ---
# caller: SessionMiddleware.validate
# file: src/middleware/session.ts
# line: 12
# kind: call

# What does AuthService call? (its dependencies)
claudemem --nologo callees AuthService --raw

# Output:
# callee: Database.query
# file: src/db/database.ts
# line: 45
# kind: call
# ---
# callee: TokenManager.generate
# file: src/auth/tokens.ts
# line: 23
# kind: call

Phase 4: Get Full Context

For complex modifications, get everything at once:

claudemem --nologo context AuthService --raw

# Output includes:
# [symbol]
# file: src/auth/AuthService.ts
# line: 15-89
# kind: class
# name: AuthService
# ...
# [callers]
# caller: LoginController.authenticate
# ...
# [callees]
# callee: Database.query
# ...

Phase 5: Search for Code (Only If Needed)

When you need actual code snippets:

# Semantic search
claudemem --nologo search "password hashing" --raw

# Search with repo map context (recommended for complex tasks)
claudemem --nologo search "password hashing" --map --raw

---

Output Format

All commands support --raw flag for machine-readable output:

# Raw output format (line-based, easy to parse)
file: src/core/indexer.ts
line: 45-120
kind: class
name: Indexer
signature: class Indexer
pagerank: 0.0842
exported: true
---
file: src/core/store.ts
line: 12-89
kind: class
name: VectorStore
...

Records are separated by ---. Each field is key: value on its own line.

---

Command Reference

claudemem map [query]

Get structural overview of the codebase. Optionally focused on a query.

# Full repo map (top symbols by PageRank)
claudemem --nologo map --raw

# Focused on specific task
claudemem --nologo map "authentication" --raw

# Limit tokens
claudemem --nologo map "auth" --tokens 500 --raw

Output fields: file, line, kind, name, signature, pagerank, exported

When to use: Always first - understand structure before reading code

claudemem symbol

Find a symbol by name. Disambiguates using PageRank and export status.

claudemem --nologo symbol Indexer --raw
claudemem --nologo symbol "search" --file retriever --raw  # hint which file

Output fields: file, line, kind, name, signature, pagerank, exported, docstring

When to use: When you know the symbol name and need exact location

claudemem callers

Find all symbols that call/reference the given symbol.

claudemem --nologo callers AuthService --raw

Output fields: caller (name), file, line, kind (call/import/extends/etc)

When to use: Before modifying anything - know the impact radius

claudemem callees

Find all symbols that the given symbol calls/references.

claudemem --nologo callees AuthService --raw

Output fields: callee (name), file, line, kind

When to use: To understand dependencies and trace data flow

claudemem context

Get full context: the symbol plus its callers and callees.

claudemem --nologo context Indexer --raw
claudemem --nologo context Indexer --callers 10 --callees 20 --raw

Output sections: [symbol], [callers], [callees]

When to use: For complex modifications requiring full awareness

claudemem search

Semantic search across the codebase.

claudemem --nologo search "error handling" --raw
claudemem --nologo search "error handling" --map --raw  # include repo map
claudemem --nologo search "auth" -n 5 --raw  # limit results

Output fields: file, line, kind, name, score, content (truncated)

When to use: When you need actual code snippets (after mapping)

---

Code Analysis Commands (v0.4.0+ Required)

claudemem dead-code

Find unused symbols in the codebase.

# Find all unused symbols
claudemem --nologo dead-code --raw

# Stricter threshold (only very low PageRank)
claudemem --nologo dead-code --max-pagerank 0.005 --raw

# Include exported symbols (usually excluded)
claudemem --nologo dead-code --include-exported --raw

Algorithm:

• Zero callers (nothing references the symbol)
• Low PageRank (< 0.001 default)
• Not exported (by default, exports may be used externally)

Output fields: file, line, kind, name, pagerank, last_caller_removed

When to use: Architecture cleanup, tech debt assessment, before major refactoring

Empty Result Handling:

RESULT=$(claudemem --nologo dead-code --raw)
if [ -z "$RESULT" ] || [ "$RESULT" = "No dead code found" ]; then
  echo "Codebase is clean - no dead code detected!"
  echo "This indicates good code hygiene."
else
  echo "$RESULT"
fi

Static Analysis Limitations:

• Dynamic imports (import()) may hide real callers
• Reflection-based access not captured
• External callers (other repos, CLI usage) not visible
• Exported symbols excluded by default for this reason

claudemem test-gaps

Find high-importance code without test coverage.

# Find all test coverage gaps
claudemem --nologo test-gaps --raw

# Only critical gaps (high PageRank)
claudemem --nologo test-gaps --min-pagerank 0.05 --raw

Algorithm:

• High PageRank (> 0.01 default) - Important code
• Zero callers from test files (*.test.ts, *.spec.ts, *_test.go)

Output fields: file, line, kind, name, pagerank, production_callers, test_callers

When to use: Test coverage analysis, QA planning, identifying critical gaps

Empty Result Handling:

RESULT=$(claudemem --nologo test-gaps --raw)
if [ -z "$RESULT" ] || [ "$RESULT" = "No test gaps found" ]; then
  echo "Excellent! All high-importance code has test coverage."
  echo "Consider lowering --min-pagerank threshold for additional coverage."
else
  echo "$RESULT"
fi

Static Analysis Limitations:

• Test file detection based on naming patterns only
• Integration tests calling code indirectly may not be detected
• Mocked dependencies may show false positives

claudemem impact

Analyze the impact of changing a symbol using BFS traversal.

# Get all transitive callers
claudemem --nologo impact UserService --raw

# Limit depth for large codebases
claudemem --nologo impact UserService --max-depth 5 --raw

Algorithm:

• BFS traversal from symbol to all transitive callers
• Groups results by depth level
• Shows file:line for each caller

Output sections: direct_callers, transitive_callers (with depth), grouped_by_file

When to use: Before ANY modification, refactoring planning, risk assessment

Empty Result Handling:

RESULT=$(claudemem --nologo impact FunctionName --raw)
if [ -z "$RESULT" ] || echo "$RESULT" | grep -q "No callers found"; then
  echo "No callers found - this symbol appears unused or is an entry point."
  echo "If unused, consider running: claudemem --nologo dead-code --raw"
  echo "If entry point (API handler, main), this is expected."
else
  echo "$RESULT"
fi

Static Analysis Limitations:

• Callback/event-based calls may not be detected
• Dependency injection containers hide static call relationships
• External service callers not visible

---

LLM Enrichment Document Types (v0.2.0+)

Claudemem v0.2.0+ supports LLM-enriched semantic search with specialized document types.

Document Types

Type	Purpose	Generated By
symbol_summary	Function behavior, params, returns, side effects	LLM analysis
file_summary	File purpose, exports, architectural patterns	LLM analysis
idiom	Common patterns in codebase	Pattern detection
usage_example	How to use APIs	Documentation extraction
anti_pattern	What NOT to do	Static analysis + LLM
project_doc	Project-level documentation	README, CLAUDE.md

Navigation Mode

For agent-optimized search with document type weighting:

# Navigation-focused search (prioritizes summaries)
claudemem --nologo search "authentication" --use-case navigation --raw

# Default search (balanced)
claudemem --nologo search "authentication" --raw

Navigation mode search weights:

• symbol_summary: 1.5x (higher priority)
• file_summary: 1.3x (higher priority)
• code_chunk: 1.0x (normal)
• idiom: 1.2x (higher for pattern discovery)

Symbol Summary Fields

symbol: AuthService.authenticate
file: src/services/auth.ts
line: 45-89
behavior: "Validates user credentials and generates JWT token"
params:
  - name: credentials
    type: LoginCredentials
    description: "Email and password from login form"
returns:
  type: AuthResult
  description: "JWT token and user profile on success, error on failure"
side_effects:
  - "Updates user.lastLogin timestamp"
  - "Logs authentication attempt"
  - "May trigger rate limiting"

File Summary Fields

file: src/services/auth.ts
purpose: "Core authentication service handling login, logout, and session management"
exports:
  - AuthService (class)
  - authenticate (function)
  - validateToken (function)
patterns:
  - "Dependency Injection (constructor takes IUserRepository)"
  - "Factory Pattern (createSession)"
  - "Strategy Pattern (IAuthProvider interface)"
dependencies:
  - bcrypt (password hashing)
  - jsonwebtoken (JWT generation)
  - UserRepository (user data access)

Using Document Types in Investigation

# Find function behavior without reading code
claudemem --nologo search "processPayment behavior" --use-case navigation --raw

# Output includes symbol_summary:
# symbol: PaymentService.processPayment
# behavior: "Charges customer card via Stripe and saves transaction"
# side_effects: ["Updates balance", "Sends receipt email", "Logs to audit"]

# Find file purposes for architecture understanding
claudemem --nologo search "file:services purpose" --use-case navigation --raw

# Find anti-patterns to avoid
claudemem --nologo search "anti_pattern SQL" --raw

Regenerating Enrichments

If codebase changes significantly:

# Re-index with LLM enrichment
claudemem index --enrich

# Or enrich specific files
claudemem enrich src/services/payment.ts

---

Workflow Templates

Standardized investigation patterns for common scenarios. All templates include error handling for empty results and version compatibility checks.

Template 1: Bug Investigation

Trigger: "Why is X broken?", "Find bug", "Root cause"

# Step 1: Locate the symptom
SYMBOL=$(claudemem --nologo symbol FunctionFromStackTrace --raw)
if [ -z "$SYMBOL" ]; then
  echo "Symbol not found - check spelling or run: claudemem --nologo map 'related keywords' --raw"
  exit 1
fi

# Step 2: Get full context (callers + callees)
claudemem --nologo context FunctionFromStackTrace --raw

# Step 3: Trace backwards to find root cause
claudemem --nologo callers suspectedSource --raw

# Step 4: Check full impact of the bug (v0.4.0+)
IMPACT=$(claudemem --nologo impact BuggyFunction --raw 2>/dev/null)
if [ -n "$IMPACT" ]; then
  echo "$IMPACT"
else
  echo "Impact analysis requires claudemem v0.4.0+ or no callers found"
  echo "Fallback: claudemem --nologo callers BuggyFunction --raw"
fi

# Step 5: Read identified file:line ranges
# Fix bug, verify callers still work

# Step 6: Document impacted code for testing

Output Template:

## Bug Investigation Report

**Symptom:** [Description]
**Root Cause:** [Location and explanation]
**Call Chain:** [How we got here]
**Impact Radius:** [What else is affected]
**Fix Applied:** [What was changed]
**Verification:** [Tests run, callers checked]

Template 2: New Feature Implementation

Trigger: "Add feature", "Implement X", "Extend functionality"

# Step 1: Map the feature area
MAP=$(claudemem --nologo map "feature area keywords" --raw)
if [ -z "$MAP" ]; then
  echo "No matches found - try broader keywords"
fi

# Step 2: Identify extension points
claudemem --nologo callees ExistingFeature --raw

# Step 3: Get full context for modification point
claudemem --nologo context ModificationPoint --raw

# Step 4: Check existing patterns to follow
claudemem --nologo search "similar pattern" --use-case navigation --raw

# Step 5: Implement following existing patterns

# Step 6: Check test coverage gaps (v0.4.0+)
GAPS=$(claudemem --nologo test-gaps --raw 2>/dev/null)
if [ -n "$GAPS" ]; then
  echo "Test gaps to address:"
  echo "$GAPS"
else
  echo "test-gaps requires v0.4.0+ or no gaps found"
fi

Output Template:

## Feature Implementation Plan

**Feature:** [Description]
**Extension Point:** [Where to add]
**Dependencies:** [What it needs]
**Pattern to Follow:** [Existing similar code]
**Test Requirements:** [Coverage needs]

Template 3: Refactoring

Trigger: "Rename X", "Extract function", "Move code", "Refactor"

# Step 1: Find the symbol to refactor
SYMBOL=$(claudemem --nologo symbol SymbolToRename --raw)
if [ -z "$SYMBOL" ]; then
  echo "Symbol not found - check exact name"
  exit 1
fi

# Step 2: Get FULL impact (all transitive callers) (v0.4.0+)
IMPACT=$(claudemem --nologo impact SymbolToRename --raw 2>/dev/null)
if [ -n "$IMPACT" ]; then
  echo "$IMPACT"
  # (impact output includes grouped_by_file)
else
  echo "Using fallback (direct callers only):"
  claudemem --nologo callers SymbolToRename --raw
fi

# Step 3: Group by file for systematic updates

# Step 4: Update each caller location systematically

# Step 5: Verify all callers updated
claudemem --nologo callers NewSymbolName --raw

# Step 6: Run affected tests

Output Template:

## Refactoring Report

**Original:** [Old name/location]
**Target:** [New name/location]
**Direct Callers:** [Count]
**Transitive Callers:** [Count]
**Files Modified:** [List]
**Verification:** [All callers updated, tests pass]

Template 4: Architecture Understanding

Trigger: "How does X work?", "Explain architecture", "Onboarding"

# Step 1: Get full structural map
MAP=$(claudemem --nologo map --raw)
if [ -z "$MAP" ]; then
  echo "Index may be empty - run: claudemem index"
  exit 1
fi
echo "$MAP"

# Step 2: Identify architectural pillars (PageRank > 0.05)
# Document top 5 by PageRank

# Step 3: For each pillar, get full context
claudemem --nologo context PillarSymbol --raw

# Step 4: Trace major flows via callees
claudemem --nologo callees EntryPoint --raw

# Step 5: Identify dead code (cleanup opportunities) (v0.4.0+)
DEAD=$(claudemem --nologo dead-code --raw 2>/dev/null)
if [ -n "$DEAD" ]; then
  echo "Dead code found:"
  echo "$DEAD"
else
  echo "No dead code found (or v0.4.0+ required)"
fi

# Step 6: Identify test gaps (risk areas) (v0.4.0+)
GAPS=$(claudemem --nologo test-gaps --raw 2>/dev/null)
if [ -n "$GAPS" ]; then
  echo "Test gaps:"
  echo "$GAPS"
else
  echo "No test gaps found (or v0.4.0+ required)"
fi

Output Template:

## Architecture Report

**Core Abstractions (PageRank > 0.05):**
1. [Symbol] - [Role in system]
2. [Symbol] - [Role in system]
3. [Symbol] - [Role in system]

**Layer Structure:**

[Presentation Layer] | [Business Layer] | [Data Layer]

**Major Flows:**
- [Flow 1: Entry -> Processing -> Output]
- [Flow 2: Entry -> Processing -> Output]

**Health Indicators:**
- Dead Code: [Count] symbols
- Test Gaps: [Count] high-importance untested
- Tech Debt: [Summary]

Template 5: Security Audit

Trigger: "Security review", "Audit authentication", "Check permissions"

# Step 1: Map security-related code
claudemem --nologo map "auth permission security token" --raw

# Step 2: Find authentication entry points
SYMBOL=$(claudemem --nologo symbol authenticate --raw)
if [ -z "$SYMBOL" ]; then
  echo "No 'authenticate' symbol - try: login, verify, validate"
fi
claudemem --nologo callers authenticate --raw

# Step 3: Trace authentication flow
claudemem --nologo callees authenticate --raw

# Step 4: Check authorization patterns
claudemem --nologo map "authorize permission check guard" --raw

# Step 5: Find sensitive data handlers
claudemem --nologo map "password hash token secret key" --raw

# Step 6: Check for test coverage on security code (v0.4.0+)
GAPS=$(claudemem --nologo test-gaps --min-pagerank 0.01 --raw 2>/dev/null)
if [ -n "$GAPS" ]; then
  # Filter for security-related symbols
  echo "$GAPS" | grep -E "(auth|login|password|token|permission|secret)"
fi

Output Template:

## Security Audit Report

**Authentication:**
- Entry Points: [List]
- Flow: [Description]
- Gaps: [Issues found]

**Authorization:**
- Permission Checks: [Where implemented]
- Coverage: [All routes covered?]

**Sensitive Data:**
- Password Handling: [How stored/compared]
- Token Management: [Generation/validation]
- Secrets: [How managed]

**Test Coverage:**
- Security Code Coverage: [X%]
- Critical Gaps: [List]

**Recommendations:**
1. [Priority 1 fix]
2. [Priority 2 fix]

---

Static Analysis Limitations

Claudemem uses static AST analysis. Some patterns are not captured:

Dynamic Imports

// NOT visible to static analysis
const module = await import(`./modules/${name}`);

Result: May show as "dead code" but is actually used dynamically. Action: Mark as "Potentially Dead - Manual Review"

External Callers

// Exported for external use
export function publicAPI() { ... }

Result: May show 0 callers but used by other repositories. Action: Use --include-exported carefully, or mark as "Externally Called - Manual Review Required"

Reflection/Eval

// NOT visible to static analysis
const fn = obj[methodName]();
eval("functionName()");

Result: Callers not detected. Action: Search codebase for eval, Object.keys, bracket notation.

Event-Driven Code

// NOT visible as direct callers
emitter.on('event', handler);
document.addEventListener('click', onClick);

Result: handler and onClick may show 0 callers. Action: Check for event registration patterns.

Dependency Injection

// Container registration hides relationships
container.register(IService, ServiceImpl);

Result: ServiceImpl may show 0 callers. Action: Check DI container configuration.

---

Scenarios

Scenario 1: Bug Fix

Task: "Fix the null pointer exception in user authentication"

# Step 1: Get overview of auth-related code
claudemem --nologo map "authentication null pointer" --raw

# Step 2: Locate the specific symbol mentioned in error
claudemem --nologo symbol authenticate --raw

# Step 3: Check what calls it (to understand how it's used)
claudemem --nologo callers authenticate --raw

# Step 4: Read the actual code at the identified location
# Now you know exactly which file:line to read

Scenario 2: Add New Feature

Task: "Add rate limiting to the API endpoints"

# Step 1: Understand API structure
claudemem --nologo map "API endpoints rate" --raw

# Step 2: Find the main API handler
claudemem --nologo symbol APIController --raw

# Step 3: See what the API controller depends on
claudemem --nologo callees APIController --raw

# Step 4: Check if rate limiting already exists somewhere
claudemem --nologo search "rate limit" --raw

# Step 5: Get full context for the modification point
claudemem --nologo context APIController --raw

Scenario 3: Refactoring

Task: "Rename DatabaseConnection to DatabasePool"

# Step 1: Find the symbol
claudemem --nologo symbol DatabaseConnection --raw

# Step 2: Find ALL callers (these all need updating)
claudemem --nologo callers DatabaseConnection --raw

# Step 3: The output shows every file:line that references it
# Update each location systematically

Scenario 4: Understanding Unfamiliar Codebase

Task: "How does the indexing pipeline work?"

# Step 1: Get high-level structure
claudemem --nologo map "indexing pipeline" --raw

# Step 2: Find the main entry point (highest PageRank)
claudemem --nologo symbol Indexer --raw

# Step 3: Trace the flow - what does Indexer call?
claudemem --nologo callees Indexer --raw

# Step 4: For each major callee, get its callees
claudemem --nologo callees VectorStore --raw
claudemem --nologo callees FileTracker --raw

# Now you have the full pipeline traced

---

Token Efficiency Guide

Action	Token Cost	When to Use
map (focused)	~500	Always first - understand structure
symbol	~50	When you know the name
callers	~100-500	Before modifying anything
callees	~100-500	To understand dependencies
context	~200-800	For complex modifications
search	~1000-3000	When you need actual code
search --map	~1500-4000	For unfamiliar codebases

Optimal order: map → symbol → callers/callees → search (only if needed)

This pattern typically uses 80% fewer tokens than blind exploration.

---

Integration Pattern for Agents

For maximum efficiency, follow this pattern:

1. RECEIVE TASK
   ↓
2. claudemem --nologo map "<task keywords>" --raw
   → Understand structure, identify key symbols
   ↓
3. claudemem --nologo symbol <high-pagerank-symbol> --raw
   → Get exact location
   ↓
4. claudemem --nologo callers <symbol> --raw  (if modifying)
   → Know the impact radius
   ↓
5. claudemem --nologo callees <symbol> --raw  (if needed)
   → Understand dependencies
   ↓
6. READ specific file:line ranges (not whole files)
   ↓
7. MAKE CHANGES with full awareness
   ↓
8. CHECK callers still work

---

PageRank: Understanding Symbol Importance

PageRank measures how "central" a symbol is in the codebase:

PageRank	Meaning	Action
> 0.05	Core abstraction	Understand this first - everything depends on it
0.01-0.05	Important symbol	Key functionality, worth understanding
0.001-0.01	Standard symbol	Normal code, read as needed
< 0.001	Utility/leaf	Helper functions, read only if directly relevant

Why PageRank matters:

• High-PageRank symbols are heavily used → understand them first
• Low-PageRank symbols are utilities → read later if needed
• Focus on high-PageRank symbols to understand architecture quickly

---

🔴 ANTI-PATTERNS (DO NOT DO THESE)

╔══════════════════════════════════════════════════════════════════════════════╗
║                           COMMON MISTAKES TO AVOID                            ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                                                                              ║
║  ❌ Anti-Pattern 1: Blind File Reading                                       ║
║     → BAD: cat src/core/*.ts | head -1000                                   ║
║     → GOOD: claudemem --nologo map "your task" --raw                        ║
║     → WHY: Wastes tokens on irrelevant code, misses important files         ║
║                                                                              ║
║  ❌ Anti-Pattern 2: Grep Without Context                                     ║
║     → BAD: grep -r "Database" src/                                          ║
║     → GOOD: claudemem --nologo symbol Database --raw                        ║
║     → WHY: Grep returns string matches, not semantic relationships          ║
║                                                                              ║
║  ❌ Anti-Pattern 3: Modifying Without Impact Analysis                        ║
║     → BAD: Edit src/auth/tokens.ts without knowing callers                  ║
║     → GOOD: claudemem --nologo callers generateToken --raw FIRST            ║
║     → WHY: Changes may break callers you don't know about                   ║
║                                                                              ║
║  ❌ Anti-Pattern 4: Searching Before Mapping                                 ║
║     → BAD: claudemem search "fix the bug" --raw                             ║
║     → GOOD: claudemem --nologo map "feature" --raw THEN search              ║
║     → WHY: Search results lack context without structural understanding     ║
║                                                                              ║
║  ❌ Anti-Pattern 5: Ignoring PageRank                                        ║
║     → BAD: Read every file that matches "Database"                          ║
║     → GOOD: Focus on high-PageRank symbols first                            ║
║     → WHY: Low-PageRank = utilities, High-PageRank = core abstractions      ║
║                                                                              ║
║  ❌ Anti-Pattern 6: Not Using --nologo                                       ║
║     → BAD: claudemem search "query" (includes ASCII art)                    ║
║     → GOOD: claudemem --nologo search "query" --raw                         ║
║     → WHY: Logo and decorations make parsing unreliable                     ║
║                                                                              ║
╚══════════════════════════════════════════════════════════════════════════════╝

Anti-Pattern vs Correct Pattern Summary

Anti-Pattern	Why It's Wrong	Correct Pattern
Read files blindly	No ranking, token waste	map first, then read specific lines
grep -r "auth"	No semantic understanding	claudemem --nologo symbol auth --raw
Modify without callers	Breaking changes	callers before any modification
Search immediately	No structural context	map → symbol → callers → search
Treat all symbols equal	Miss core abstractions	Focus on high-PageRank first

---

The Correct Workflow Diagram

┌─────────────────────────────────────────────────────────────────┐
│                 CORRECT INVESTIGATION FLOW (v0.3.0)              │
├─────────────────────────────────────────────────────────────────┤
│                                                                  │
│  1. claudemem --nologo map "task" --raw                         │
│     → Understand structure, find high-PageRank symbols          │
│                                                                  │
│  2. claudemem --nologo symbol <name> --raw                      │
│     → Get exact file:line location                              │
│                                                                  │
│  3. claudemem --nologo callers <name> --raw                     │
│     → Know impact radius BEFORE modifying                       │
│                                                                  │
│  4. claudemem --nologo callees <name> --raw                     │
│     → Understand dependencies                                    │
│                                                                  │
│  5. Read specific file:line ranges (NOT whole files)            │
│                                                                  │
│  6. Make changes with full awareness                            │
│                                                                  │
│  ⚠️ NEVER: Start with Read/Glob for semantic questions          │
│  ⚠️ NEVER: Modify without checking callers                      │
│  ⚠️ NEVER: Search without mapping first                         │
│                                                                  │
└─────────────────────────────────────────────────────────────────┘

---

Installation & Setup

Check Installation

# Check if claudemem CLI is available
which claudemem || command -v claudemem

# Check version (must be 0.3.0+)
claudemem --version

Installation Options

# npm (recommended)
npm install -g claude-codemem

# Homebrew (macOS)
brew tap tianzecn/claude-mem && brew install --cask claudemem

Index Codebase

# Index current project
claudemem index

# Check status
claudemem status

---

Quality Checklist

Before completing a claudemem workflow, ensure:

• claudemem CLI is installed (v0.3.0+)
• Codebase is indexed (check with claudemem status)
• Started with map to understand structure ⭐CRITICAL
• Used --nologo --raw for all commands
• Checked callers before modifying any symbol
• Focused on high-PageRank symbols first
• Read only specific file:line ranges (not whole files)

---

Notes

• Requires OpenRouter API key for embeddings (https://openrouter.ai)
• Default model: voyage/voyage-code-3 (best code understanding)
• All data stored locally in .claudemem/ directory
• Tree-sitter provides AST parsing for TypeScript, Go, Python, Rust
• PageRank based on symbol call graph analysis
• Can run as MCP server with --mcp flag
• Initial indexing takes ~1-2 minutes for typical projects
• NEW in v0.3.0: map, symbol, callers, callees, context commands
• NEW in v0.3.0: PageRank ranking for symbol importance
• NEW in v0.3.0: --raw output format for machine parsing
• NEW in v0.4.0: dead-code, test-gaps, impact commands for code analysis
• NEW in v0.4.0: BFS traversal for transitive caller analysis

---

Maintained by: tianzecn @ tianzecn Plugin: code-analysis v2.6.0 Last Updated: December 2025 (v0.4.0 features)