Memento

Instructions

Implementation Reference

• src/server.js:222-240 (registration)

  MCP tool registration for 'set_importance', including schema (entityName string, importance enum), description, and handler function that delegates to KnowledgeGraphManager.setImportance and returns JSON-formatted result.
  this.tool( 'set_importance', 'Set the importance level for an entity (critical, important, normal, temporary, deprecated).', { entityName: z.string().describe('Name of the entity.'), importance: z.enum(['critical', 'important', 'normal', 'temporary', 'deprecated']) .describe('Importance level for the entity.') }, async ({ entityName, importance }) => ({ content: [{ type: 'text', text: JSON.stringify( await this.#knowledgeGraphManager.setImportance(entityName, importance), null, 2 ) }] }) );
• src/knowledge-graph-manager.js:326-348 (handler)

  Handler in KnowledgeGraphManager that resolves entityName to entityId, calls SearchContextManager.setImportance, and returns structured success/error response.
  async setImportance(entityName, importance) { try { const entityId = await this.getEntityId(entityName); if (!entityId) { return { success: false, error: `Entity "${entityName}" not found` }; } const success = await this.#searchContextManager.setImportance(entityId, importance); return { success, entityName, importance, message: success ? `Importance set to '${importance}' for entity '${entityName}'` : `Failed to set importance for entity '${entityName}'` }; } catch (error) { return { success: false, error: error.message }; } }
• src/context-manager.js:587-595 (helper)

  Helper in SearchContextManager (context-manager.js) that validates importance level against enum and delegates to repository.setImportance.
  async setImportance(entityId, importance) { const validLevels = Object.values(ImportanceLevel); if (!validLevels.includes(importance)) { throw new Error(`Invalid importance level: ${importance}. Use ImportanceLevel enum values.`); } return this.#repository.setImportance(entityId, importance); }
• src/graph-repository.js:40-40 (schema)

  Interface definition (JSDoc) for GraphRepository.setImportance method signature.
  * @property {(entityId: number|string, importance: string) => Promise<boolean>} setImportance
• src/postgres/graph-repo.js:509-518 (helper)

  PostgreSQL repository implementation of setImportance: SQL UPDATE on observations table for the entity.
  async setImportance(entityId, importance) { const rows = await this.#query( `UPDATE observations SET importance = $1 WHERE entity_id = $2 RETURNING id`, [ importance, entityId ] ); return rows.length > 0; }