setup

An interactive command for setting up a Python development environment with Pyright and common coding tools.

In plain words
What is it for?
It is for installing tools such as Pyright, Ruff, Black, isort, mypy, Bandit, pip-audit, and pytest, then verifying their versions and optionally creating project configuration.
Why use it?
It reduces the manual work of installing and checking tools for type checking, formatting, linting, testing, and security.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/zircote/python-lsp/setup
Clone the repo
git clone --depth 1 https://github.com/zircote/python-lsp
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 554 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00008 $0.00554
Opus 5 $0.00004 $0.00277
Sonnet 5 $0.00002 $0.00111
Haiku 4.5 $0.00001 $0.00055

Measured yesterday against content hash 73afe6a8bbd7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

commands/setup.md · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Python LSP Setup

This command will configure your Python development environment with Pyright LSP and essential tools.

Prerequisites Check

First, verify Python is installed:

python --version || python3 --version

Installation Steps

1. Install Pyright LSP Server

npm install -g pyright

Or with pip:

pip install pyright

2. Install Python Development Tools

Quick install (all recommended tools):

pip install ruff black isort mypy bandit pytest pip-audit

Or install individually:

# Linting & Formatting
pip install ruff      # Fast linter and formatter
pip install black     # Code formatter
pip install isort     # Import sorter

# Type Checking
pip install mypy      # Static type checker

# Security
pip install bandit    # Security linter
pip install pip-audit # Dependency auditor

# Testing
pip install pytest    # Testing framework

3. Verify Installation

# Check Pyright
pyright --version

# Check Ruff
ruff --version

# Check Black
black --version

# Check Mypy
mypy --version

4. Create Project Configuration (Optional)

pyproject.toml:

[tool.pyright]
pythonVersion = "3.11"
typeCheckingMode = "standard"

[tool.ruff]
line-length = 88
target-version = "py311"

[tool.black]
line-length = 88
target-version = ['py311']

[tool.isort]
profile = "black"

5. Enable LSP in Claude Code

export ENABLE_LSP_TOOL=1

Verification

Test the LSP integration:

# Create a test file
echo 'def greet(name: str) -> str: return f"Hello, {name}"' > test_lsp.py

# Run type check
pyright test_lsp.py

# Clean up
rm test_lsp.py

Troubleshooting

Pyright not finding Python

Set the Python path in pyrightconfig.json:

{
    "pythonVersion": "3.11",
    "venvPath": ".",
    "venv": ".venv"
}

Virtual environment issues

Ensure your virtual environment is activated before running Claude Code:

source .venv/bin/activate
claude

Read the full file on GitHub · 138 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 138 lines · 8 tokens per session scan A 73afe6a8bbd7

Subscribe to this mod's changes

setup is a command published in the GitHub repository zircote/python-lsp (3 stars, last pushed 22d ago), licensed MIT. It adds 8 tokens to every session and 554 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.