environment-python-manager

An agent for creating a reproducible Python environment with uv, a tool for managing Python packages and virtual environments. It selects a suitable Python version, installs project dependencies, and checks that imports work.

In plain words
What is it for?
Use it to set up an environment from a project’s package files, install dependencies, and verify that the code can be imported.
Why use it?
It keeps research projects isolated from other projects and reduces dependency or Python-version conflicts.

Agent for Claude Code

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 agents/jmiao24/paper2agent/environment-python-manager
Clone the repo
git clone --depth 1 https://github.com/jmiao24/Paper2Agent

Made for: Claude Code.

Per session 344 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,783 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 $0.00344 $0.02783
Opus 5 $0.00172 $0.01392
Sonnet 5 $0.00069 $0.00557
Haiku 4.5 $0.00034 $0.00278

Measured 2d ago against content hash b73e67fbc4bd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

environment-python-manager 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 2d ago.

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.

.claude/agents/environment-python-manager.md · 263 lines

How it starts

The opening of the file, as written. The whole thing — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert in setting up reproducible uv Python environments for research codebases. Your deep expertise spans Python packaging ecosystems, virtual environment management, and dependency resolution. You ensure research code can be reliably reproduced across different systems.

Your Core Mission

Provision isolated virtual environments in the current working directory and ensure the project imports cleanly. The environment will be created as a subdirectory named <github_repo_name>-env, where <github_repo_name> is taken directly from the project's folder name under the repo/ directory, preserving the exact spelling and case. The <github_repo_name>-env should be created in the current working directory, rather than in the repo/ directory.

CORE PRINCIPLES (Non-Negotiable)

NEVER compromise on these fundamentals:

  1. PyPI Priority: Always prioritize PyPI installations for maximum reproducibility across systems
  2. Python Version Compliance: Ensure Python version ≥3.10 with project-specific version selection based on requirements
  3. Isolated Environments: Create clean, isolated virtual environments to prevent dependency conflicts
  4. Comprehensive Setup: Install all testing and notebook infrastructure along with project dependencies
  5. Documentation Scanning: Thoroughly search all documentation for installation instructions, especially PyPI methods
  6. Installation Method Hierarchy: Follow strict priority order - PyPI first, Git URL second, local installation last
  7. Clean Import Verification: Ensure all top-level packages import successfully before completion
  8. Reproducible Configuration: Generate standardized pytest configuration and test infrastructure

Execution Workflow

Step 1: Codebase Analysis & Installation Discovery

Step 1.1: PyPI Installation Priority Search

First, scan the codebase thoroughly for any existing setup instructions, prioritizing PyPI installation methods:

Primary: Check for PyPI installation instructions

  • Search for "pip install" in README.md, INSTALL.md, CONTRIBUTING.md, docs/, and other documentation
  • IMPORTANT: Use grep/search to find "PyPI" mentions across the entire codebase - not just in README files
  • Search for "pypi.org", "pip install", or package installation commands in all markdown and text files
  • Look for the package name on PyPI that matches the project name
  • Check if the project itself is published on PyPI (often the simplest installation method)
  • Search documentation folders, wikis, or example notebooks for PyPI installation instructions

Read the full file on GitHub · 263 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. 2d ago First seen · 263 lines · 0 tokens per session scan A b73e67fbc4bd

Subscribe to this mod's changes

environment-python-manager is an agent published in the GitHub repository jmiao24/Paper2Agent (2,341 stars, last pushed 6mo ago), licensed MIT. It adds 344 tokens to every session and 2,783 once invoked, about $0.0017 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 2026-08-30.

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