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cursor-trellis: Skill for Claude Code

.agents/skills/python-design/SKILL.md

python-design is a skill for Claude Code, Codex from blxzer77/cursor-trellis. It costs 74 tokens per session (3,550 once invoked), scanned A, original, AGPL-3.0.

A set of Python design guidelines for command-line scripts and utilities. It focuses on type-first code, module structure, managing complexity, and recognizing design problems.

In plain words
What is it for?
Use it when reading, writing, reviewing, refactoring, or planning Python CLI scripts and utilities, including files under .cstl/scripts/.
Why use it?
It helps keep small Python tools understandable and maintainable as they gain options, responsibilities, and dependencies.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is blxzer77/cursor-trellis's own configuration. It tells Claude Code and Codex how to work on cursor-trellis itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything cursor-trellis configures →

not rated 18repo 1mo ago A scan 74 tokens AGPL-3.0
View source ↗ blxzer77/cursor-trellis
Reuse

Borrowing it

Nothing to install: this file belongs to blxzer77/cursor-trellis. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/blxzer77/cursor-trellis/main/.agents/skills/python-design/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/blxzer77/cursor-trellis

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for python-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/blxzer77/cursor-trellis/python-design/github.svg)](https://agentmods.dev/skills/blxzer77/cursor-trellis/python-design)
Your own site
<a href="https://agentmods.dev/skills/blxzer77/cursor-trellis/python-design"><img src="https://agentmods.dev/badge/skills/blxzer77/cursor-trellis/python-design/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for python-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/blxzer77/cursor-trellis/python-design"><img src="https://agentmods.dev/badge/skills/blxzer77/cursor-trellis/python-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,550 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00074 $0.03550
Opus 5.5 $0.00030 $0.01420
Sonnet 5.5 $0.00015 $0.00710
Haiku 4.5 $0.00007 $0.00355

Measured 2mo ago against content hash a4276ca55fa6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

python-design scanned grade A with 1 finding 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 2mo 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

def run_git(args: list[str]) -> subprocess.CompletedProcess:
.agents/skills/python-design/SKILL.md · 452 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 2mo ago First seen · 452 lines · 74 tokens per session scan A a4276ca55fa6

Subscribe to this mod's changes

python-design is a skill published in the GitHub repository blxzer77/cursor-trellis (18 stars, last pushed 1mo ago), licensed AGPL-3.0. It adds 74 tokens to every session and 3,550 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

LanguagesPython
Related

python-design compared with skills from other repositories

python-design next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
python-designblxzer77/cursor-trellisSkill181mo agoAGPL-3.0A74Claude Code, Codex
matlabK-Dense-AI/scientific-agent-skillsSkill56k4d agoMITA44Claude Code
pennylaneK-Dense-AI/scientific-agent-skillsSkill56k4d agoMITA74Claude Code
holoscan-install-wheelNVIDIA/skillsSkill3.9kyesterdayApache-2.0A34Claude Code, Codex
future-self-liteTHU-MAIC/OpenMAICSkill43kyesterdayMITA20Claude Code, Codex
rocm-kernelshuggingface/kernelsSkill783yesterdayApache-2.0A93Claude Code
typing-exclusion-workergetsentry/skillsSkill1.1kyesterdayApache-2.0A57Claude Code