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pyscn MCP Server

Python code analysis for AI agents: complexity, dead code, clones, coupling, and a health score.

Publisher claimed. No tool list reported, and Pod has not connected to this server.

Status

Pod has not dialled pyscn yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

Connect

Published as pyscn-mcp on pypi. Runs locally.

Known issues

15 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

Most discussed

Add unit tests for MCP server handlers

Task

Add unit tests for MCP server handlers in mcp/handlers_test.go

What to test

6 handlers in mcp/handlers.go:

  • HandleAnalyzeCode
  • HandleCheckComplexity
  • HandleDetectClones
  • HandleCheckCoupling
  • HandleFindDeadCode
  • HandleGetHealthScore

Example

func TestHandleAnalyzeCode(t *testing.T) {
    deps := &Dependencies{/* ... */}
    request := mcp.CallToolRequest{
        Params: mcp.CallToolRequestParams{
            Arguments: map[string]interface{}{
       

[Read the thread](https://github.com/ludo-technologies/pyscn/issues/187) · 2025-10-14 · closed · 10 comments

### [FEATURE]  Is there a plan to integrate MCP?

May I ask if there are any plans to integrate MCP in the future, using ddd mode, modular development, and AI loop for testing? If you don't have any plans, can I fork the project and submit PR?

[Read the thread](https://github.com/ludo-technologies/pyscn/issues/181) · 2025-10-13 · closed · outside contributor · 2 comments

### [FEATURE] Integrate nesting depth metric into analyze command

**Description**:
  PR #143 implemented the nesting depth calculation logic. We should now integrate it into the `pyscn analyze`
  command to make it available to users.

  **Proposed Implementation**:
  - Add `NestingDepth int` field to `ComplexityMetrics` struct
  - Call `CalculateMaxNestingDepth()` in complexity analysis
  - Include nesting depth in all output formats (JSON, HTML, CSV, YAML)
  
  **Background**:
  #143 implemented the core nesting depth calculation. This issue is about exposin

[Read the thread](https://github.com/ludo-technologies/pyscn/issues/146) · 2025-10-08 · closed · 2 comments

### [BUG][auto] cbo-enum-member-inflation-module-qualified: CBO still double-counts enum members accessed via a module alias

## Description

Issue #593 / PR #594 fixed CBO's enum-member double-counting for the *direct-import* case (`from mod import RuleMode` then `RuleMode.BLOCKING`), where the import binding itself is the enum class name. But the same double-counting bug still occurs for the **module-qualified** case: `import mod as alias` (or `from pkg import _enums as reflection`) then `alias.EnumClass.MEMBER`. Here the enum class (`alias.EnumClass`) and each enum member access (`alias.EnumClass.MEMBER`) are still 

[Read the thread](https://github.com/ludo-technologies/pyscn/issues/667) · 2026-07-21 · closed · 1 comment

### [BUG] Claude code plugin does not work?

## Describe the bug
I had previously used the MCP with claude code successfully. Upon switching laptops and having to reconfigure my claude setup, I used the plugin. I found the plugin to not actually work?

Installing the `pyscn-mcp` plugin in Claude Code loads the **skill** but not the **MCP server**. `/reload-plugins` reports `0 plugin MCP servers`, and none of the `get_health_score` / `analyze_code` / `check_complexity` / … tools become available. The skill (`skills/SKILL.md`) instructs the 

[Read the thread](https://github.com/ludo-technologies/pyscn/issues/509) · 2026-06-02 · closed · external user · 1 comment

### Most recent

### Misleading 'disabled by default' comments for architecture analysis (clarify SOT)

## Summary

The default-enabled state of **architecture analysis** is defined in multiple places with **conflicting values**, and the struct-level defaults carry comments that contradict the actual runtime behavior. This is a documentation/consistency cleanup — no behavior change is required.

## Background

For the `analyze` command, whether architecture analysis runs is gated **solely** by `AnalyzeExecutionConfig.SystemAnalyzeArchitecture`:

- **No config file** → `defaultAnalyzeExecutionConfi

[Read the thread](https://github.com/ludo-technologies/pyscn/issues/524) · 2026-06-06 · closed · 0 comments

### feat: add LCOM4 (Lack of Cohesion of Methods) metric

## Summary

Add LCOM4 (Lack of Cohesion of Methods) metric to measure class cohesion by analyzing whether methods in a class share instance variables using a graph-based approach.

## Background

LCOM is one of the classic OO metrics proposed by Chidamber & Kemerer (1994). It complements the existing CBO (coupling) metric by measuring internal class quality.

### LCOM4 Algorithm (Hitz & Montazeri)

1. Build a graph where nodes = methods and edges connect methods that share instance variables
2. 

[Read the thread](https://github.com/ludo-technologies/pyscn/issues/334) · 2026-02-13 · closed · 0 comments

### feat: Publish as Claude Code plugin marketplace

## Summary

Publish pyscn-mcp as a Claude Code plugin marketplace.

## Background

- Anthropic's official marketplace (`anthropics/claude-plugins-official`) is primarily for partner companies; individual developer tools are unlikely to be accepted
- Publishing as a self-hosted marketplace is the realistic approach

## Required Work

### 1. Add directory structure

pyscn/ ├── .claude-plugin/ │ ├── marketplace.json # Marketplace definition │ └── plugin.json # Plugin manifest └──

Read the thread · 2026-01-10 · closed · 0 comments

Fix binary auto-detection in create_wheel.sh for pyscn_mcp package

Problem

The binary auto-detection logic in create_wheel.sh (lines 449-498) doesn't work correctly for pyscn_mcp package:

  • bin_base is hardcoded to src/pyscn/bin (should use src/pyscn_mcp/bin for pyscn_mcp)
  • Always searches for both binaries (pyscn_mcp package only needs pyscn-mcp binary)

Current Impact

None - build_platform_wheel.sh always explicitly specifies binaries with --binary flag, so auto-detection is never used.

Future Risk

If someone runs `create_whee

Read the thread · 2025-10-18 · closed · 0 comments

Add MCP Integration section to README

Task

Add a "MCP Integration" section to the main README.md to showcase pyscn's AI assistant integration capabilities.

Background

pyscn now supports MCP (Model Context Protocol), allowing AI assistants like Claude Code and Cursor to directly analyze Python code quality. This is a major feature but not documented in the main README.

Steps

  1. Try out the MCP server

  2. Add README section

  3. Reference existing docs

  • mcp/README.md (604 lines) - Full MCP documentation
  • `docs/MCP

Read the thread · 2025-10-14 · closed · 0 comments

Add pyscn-mcp binary to PyPI release workflow

Problem

The current Python release workflow (python/scripts/build_platform_wheel.sh) only builds the pyscn binary but not the pyscn-mcp binary. This means that when we release to PyPI, users won't be able to use uvx pyscn-mcp.

The MCP server implementation is already merged (#184), but it won't be included in PyPI releases.

Current Behavior

In python/scripts/build_platform_wheel.sh:

  • Line 144, 153, 157: Only builds cmd/pyscn
  • The pyscn-mcp binary from cmd/pyscn-mcp is

Read the thread · 2025-10-14 · closed · 0 comments

Add configurable grouping modes for clone detection

Summary

Add support for multiple grouping strategies in clone detection to allow users to choose between different trade-offs of precision vs recall.

Background

Currently only transitive grouping (connected components) is supported. This can lead to unwanted chaining effects. We need to support multiple grouping modes for different use cases.

Requirements

Implement the following grouping modes:

  • connected: Current transitive grouping (high recall)
  • star: Star/Medoid constraint (

Read the thread · 2025-09-10 · closed · 0 comments

See all 15 reports Pod holds for pyscn.

Firsthand observations

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For agents

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  • 15 reported issues below
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