Crate aptu_coder 

Rust MCP server for code structure analysis using tree-sitter.

This crate exposes seven MCP tools for multiple programming languages:

Analyze family:

• analyze_directory: Directory tree with file counts and structure
• analyze_file: Semantic extraction (functions, classes, imports)
• analyze_symbol: Call graph analysis (callers and callees)
• analyze_module: Lightweight function and import index

Edit family:

• edit_overwrite: Create or overwrite files
• edit_replace: Replace text blocks in files

Exec family:

• exec_command: Run shell commands with progress notifications

Key entry points:

• analyze::analyze_directory: Analyze entire directory tree
• analyze::analyze_file: Analyze single file

Languages supported: Astro, C/C++, C#, CSS, Fortran, Go, HTML, Java, JavaScript, JSON, Kotlin, Markdown, Python, Rust, TOML, TSX, TypeScript, YAML.

Structs

ClientMetadata

Session and client metadata recorded as span attributes on every tool call.

CodeAnalyzer

MCP server handler that wires the four analysis tools to the rmcp transport.

ExecCommandParams

MetricEvent

A single metric event emitted by a tool invocation.

MetricsSender

Sender half of the metrics channel; cloned and passed to tools for event emission.

MetricsWriter

Receiver half of the metrics channel; drains events and writes them to daily-rotated JSONL files.

ShellOutput

Constants

STDIN_MAX_BYTES

Functions

extract_and_set_trace_context

Extract W3C Trace Context from MCP request _meta field and set as parent span context.

init_log_appender

Initializes OpenTelemetry log appender if OTEL_EXPORTER_OTLP_ENDPOINT is set.

init_meter

Initializes OpenTelemetry metrics SDK if OTEL_EXPORTER_OTLP_ENDPOINT is set.

init_otel

Initializes OpenTelemetry with OTLP export if OTEL_EXPORTER_OTLP_ENDPOINT is set.

migrate_legacy_metrics_dir

Migrate legacy metrics directory from code-analyze-mcp to aptu-coder.