Memory Management & Knowledge Persistence

Memory Management & Knowledge Persistence

Build and maintain a knowledge graph of patterns, decisions, and learnings across sessions.

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Memory Entity Types

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Memory Operations

Create New Entity

mcp__memory__create_entities([
    {
        name: 'EmployeeValidationPattern',
        entityType: 'Pattern',
        observations: [
            'Use PlatformValidationResult fluent API',
            'Chain with .And() and .AndAsync()',
            "Return validation result, don't throw",
            'Location: Growth.Application/​UseCaseCommands/'
        ]
    }
]);

Create Relationships

mcp__memory__create_relations([
    {
        from: 'TextSnippetService',
        to: 'AccountsService',
        relationType: 'depends_on'
    },
    {
        from: 'EmployeeEntity',
        to: 'UserEntity',
        relationType: 'syncs_from'
    }
]);

Add Observations

mcp__memory__add_observations([
    {
        entityName: 'EmployeeValidationPattern',
        contents: ['Also supports .AndNot() for negative validation', 'Use .Of<IPlatformCqrsRequest>() for type conversion']
    }
]);

Search Knowledge

// Search by query
mcp__memory__search_nodes({ query: 'validation pattern' });

// Open specific entities
mcp__memory__open_nodes({ names: ['EmployeeValidationPattern', 'TextSnippetService'] });

// Read entire graph
mcp__memory__read_graph();

Delete Outdated Knowledge

// Delete entities
mcp__memory__delete_entities({ entityNames: ['OutdatedPattern'] });

// Delete specific observations
mcp__memory__delete_observations([
    {
        entityName: 'EmployeeValidationPattern',
        observations: ['Outdated observation text']
    }
]);

// Delete relations
mcp__memory__delete_relations([
    {
        from: 'OldService',
        to: 'NewService',
        relationType: 'depends_on'
    }
]);

---

When to Save to Memory

Always Save

1. Discovered Patterns: New code patterns not in documentation
2. Bug Solutions: Complex bugs with non-obvious solutions
3. Service Boundaries: Which service owns what
4. Architectural Decisions: Why a particular approach was chosen
5. Anti-Patterns: Mistakes to avoid

Save at Session End

// Session summary template
mcp__memory__create_entities([
    {
        name: `Session_${taskName}_${date}`,
        entityType: 'SessionSummary',
        observations: [
            `Task: ${taskDescription}`,
            `Completed: ${completedItems.join(', ')}`,
            `Remaining: ${remainingItems.join(', ')}`,
            `Key Files: ${keyFiles.join(', ')}`,
            `Discoveries: ${discoveries.join(', ')}`,
            `Next Steps: ${nextSteps.join(', ')}`
        ]
    }
]);

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Memory Retrieval Patterns

Session Start Protocol

// 1. Search for related context
const results = mcp__memory__search_nodes({
    query: 'current feature or task keywords'
});

// 2. Load relevant entities
mcp__memory__open_nodes({
    names: results.entities.map(e => e.name)
});

// 3. Check for incomplete sessions
mcp__memory__search_nodes({ query: 'SessionSummary Remaining' });

Before Implementation

// Check for existing patterns
mcp__memory__search_nodes({ query: 'CQRS command pattern' });

// Check for anti-patterns
mcp__memory__search_nodes({ query: 'AntiPattern command' });

// Check for related decisions
mcp__memory__search_nodes({ query: 'Decision validation' });

After Bug Fix

// Save the fix
mcp__memory__create_entities([
    {
        name: `BugFix_${bugName}`,
        entityType: 'BugFix',
        observations: [
            `Symptom: ${symptomDescription}`,
            `Root Cause: ${rootCause}`,
            `Solution: ${solution}`,
            `Files: ${affectedFiles.join(', ')}`,
            `Prevention: ${preventionTip}`
        ]
    }
]);

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Knowledge Graph Structure

┌─────────────────────────────────────────────────────────────┐
│                     EasyPlatform Knowledge                    │
├─────────────────────────────────────────────────────────────┤
│  Services                                                   │
│  ├── TextSnippetService ──depends_on──> AccountsService          │
│  ├── TalentsService ──depends_on──> AccountsService         │
│  └── SurveysService ──depends_on──> AccountsService         │
│                                                             │
│  Patterns                                                   │
│  ├── CQRSCommandPattern                                     │
│  ├── CQRSQueryPattern                                       │
│  ├── EntityEventPattern                                     │
│  └── ValidationPattern                                      │
│                                                             │
│  Entities                                                   │
│  ├── Employee ──syncs_from──> User                          │
│  ├── Company ──syncs_from──> Organization                   │
│  └── LeaveRequest ──owned_by──> TextSnippetService               │
│                                                             │
│  Sessions                                                   │
│  ├── Session_LeaveRequest_2025-01-15                        │
│  └── Session_EmployeeImport_2025-01-14                      │
└─────────────────────────────────────────────────────────────┘

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Importance Scoring

When saving observations, prioritize:

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Memory Maintenance

Weekly Cleanup

// Find old session summaries (> 30 days)
mcp__memory__search_nodes({ query: 'SessionSummary' });

// Delete outdated sessions
mcp__memory__delete_entities({
    entityNames: ['Session_OldTask_2024-12-01']
});

Consolidation

When multiple observations cover same topic:

// 1. Read existing entity
mcp__memory__open_nodes({ names: ['PatternName'] });

// 2. Delete fragmented observations
mcp__memory__delete_observations([
    {
        entityName: 'PatternName',
        observations: ['Fragment 1', 'Fragment 2']
    }
]);

// 3. Add consolidated observation
mcp__memory__add_observations([
    {
        entityName: 'PatternName',
        contents: ['Consolidated comprehensive observation']
    }
]);

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Quick Reference

Create: mcp__memory__create_entities / mcp__memory__create_relations Read: mcp__memory__read_graph / mcp__memory__open_nodes / mcp__memory__search_nodes Update: mcp__memory__add_observations Delete: mcp__memory__delete_entities / mcp__memory__delete_observations / mcp__memory__delete_relations