Relationships

Codanna is a local code intelligence MCP server and CLI for AI coding agents. After finding symbols with search, trace their relationships — calls, callers, implementations, and impact radius — to understand how code connects.

Get Calls

See what a function calls:

codanna mcp get_calls process_file
codanna mcp get_calls symbol_id:1883

Returns functions invoked by the target, each with [symbol_id:X] for follow-up.

Find Callers

See what calls a function:

codanna mcp find_callers parse_config
codanna mcp find_callers symbol_id:1883

Returns functions that invoke the target.

Find Implementations

See what types implement a trait:

codanna mcp find_symbol LanguageParser
codanna retrieve implementations LanguageParser

Returns all structs that implement the given trait, with their definitions and relationships.

Analyze Impact

Map the full impact radius of a symbol:

codanna mcp analyze_impact Parser
codanna mcp analyze_impact symbol_id:1883 max_depth:5

Returns a dependency graph showing:

Relationship	Example
Calls	`functionA()` invokes `functionB()`
Uses as type	Parameter, return type, or field
Renders/Composes	JSX `<Component>`, struct fields

Chaining with symbol_id

All relationship tools return [symbol_id:X] for each result. Use these IDs to chain queries without ambiguity:

# Find a symbol
codanna mcp semantic_search_with_context query:"config parser" limit:1
# Returns: parse_config [symbol_id:567]

# Trace its relationships
codanna mcp get_calls symbol_id:567
codanna mcp find_callers symbol_id:567
codanna mcp analyze_impact symbol_id:567

Language Filtering

Relationship tools take a symbol name or symbol_id, not a lang: filter — lang: applies to search tools (find_symbol, search_symbols, semantic_search_docs, semantic_search_with_context). To narrow by language, filter at the search step, then feed the resolved symbol_id to the relationship tool:

codanna mcp find_symbol name:auth_handler lang:typescript --json
# Returns: auth_handler [symbol_id:890]

codanna mcp find_callers symbol_id:890

Overview

Features

Workflows

Get Calls

Find Callers

Find Implementations

Analyze Impact

Chaining with symbol_id

Language Filtering

Next Steps

Document Search

Agentic Guidance

​Get Calls

​Find Callers

​Find Implementations

​Analyze Impact

​Chaining with symbol_id

​Language Filtering

​Next Steps

Document Search

Agentic Guidance

Get Calls

Find Callers

Find Implementations

Analyze Impact

Chaining with symbol_id

Language Filtering

Next Steps