Graph Model

NexGraph stores code relationships in an Apache AGE property graph. Each repository gets its own named graph.

Node Labels

Folder

Represents a directory in the source tree.

Property	Type	Description
path	string	Relative path from repo root
name	string	Directory name

File

Represents a source file.

Property	Type	Description
path	string	Relative path from repo root
language	string	Detected programming language
size	number	File size in bytes

Function

A standalone function or arrow function.

Property	Type	Description
name	string	Function name
file_path	string	File containing this function
line	number	Start line number
exported	boolean	Whether the function is exported
async	boolean	Whether the function is async
parameters	string	Parameter signature

Class

A class declaration.

Property	Type	Description
name	string	Class name
file_path	string	File containing this class
line	number	Start line number
exported	boolean	Whether the class is exported
decorators	string	Comma-separated decorator names

Interface

An interface declaration.

Property	Type	Description
name	string	Interface name
file_path	string	File containing this interface
line	number	Start line number
exported	boolean	Whether the interface is exported

Method

A method within a class.

Property	Type	Description
name	string	Method name
class_name	string	Parent class name
file_path	string	File containing this method
line	number	Start line number
visibility	string	public, private, or protected
static	boolean	Whether the method is static
async	boolean	Whether the method is async

CodeElement

A catch-all for other symbols (constants, etc.).

Property	Type	Description
name	string	Element name
kind	string	Specific kind (const, variable, etc.)
file_path	string	File containing this element
line	number	Start line number
exported	boolean	Whether the element is exported

RouteHandler

An HTTP route handler detected via AST analysis (Express, NestJS, Flask, FastAPI, Spring, Go net/http, etc.).

Property	Type	Description
name	string	Handler function name
http_method	string	HTTP method (GET, POST, PUT, DELETE, etc.)
url_pattern	string	URL path pattern
framework	string	Detected framework (express, nestjs, flask, etc.)
file_path	string	File containing this handler
start_line	number	Start line number

Struct

A struct declaration (Go, Rust, C#).

Property	Type	Description
name	string	Struct name
file_path	string	File containing this struct
line	number	Start line number
exported	boolean	Whether the struct is exported

Enum

An enum declaration.

Property	Type	Description
name	string	Enum name
file_path	string	File containing this enum
line	number	Start line number
exported	boolean	Whether the enum is exported

Trait

A trait or protocol declaration (Rust, Swift).

Property	Type	Description
name	string	Trait name
file_path	string	File containing this trait
line	number	Start line number
exported	boolean	Whether the trait is exported

TypeAlias

A type alias declaration (type X = ...).

Property	Type	Description
name	string	Type alias name
file_path	string	File containing this type alias
line	number	Start line number
exported	boolean	Whether the type alias is exported

Namespace

A namespace or module block declaration.

Property	Type	Description
name	string	Namespace name
file_path	string	File containing this namespace
line	number	Start line number
exported	boolean	Whether the namespace is exported

Community

A functional cluster detected via Leiden community detection on the CALLS graph.

Property	Type	Description
community_id	string	Unique community identifier
label	string	Heuristic label (folder name, common prefix, or fallback)
symbol_count	number	Number of member symbols
cohesion	number	Internal edge ratio (0.0–1.0)
keywords	string	Comma-separated keywords from member names

Process

A detected execution flow traced from an entry point through CALLS edges.

Property	Type	Description
process_id	string	Unique process identifier
entry_name	string	Entry point symbol name
terminal_name	string	Terminal symbol name
step_count	number	Number of steps in the flow
type	string	intra_community or cross_community

Edge Labels

Edge	From	To	Description
CONTAINS	Folder/File	File/Symbol	Parent contains child
DEFINES	File	Symbol	File defines a symbol
EXPOSES	File	Symbol	File exports a symbol
IMPORTS	File	File	File imports from another file
CALLS	Symbol	Symbol	Symbol calls another symbol
EXTENDS	Class	Class	Class inheritance
IMPLEMENTS	Class	Interface	Interface implementation
OVERRIDES	Method	Method	Child method overrides parent method
HANDLES	Function	RouteHandler	Function handles an HTTP route
MEMBER_OF	Symbol	Community	Symbol belongs to a community cluster
STEP_IN_PROCESS	Symbol	Process	Symbol is a step in an execution flow

CALLS Edge Properties

Property	Type	Description
confidence	number	Resolution confidence (0.0–1.0)
tier	number	Resolution tier (1, 2, or 3)

STEP_IN_PROCESS Edge Properties

Property	Type	Description
step	number	Order of this step in the process (0-based)