devenv-basic-config

A basic configuration and structure rule set for Devenv, a tool for defining reproducible development environments.

In plain words
What is it for?
Use it for Devenv configuration, but the available description does not say which concrete tasks it supports.
Why use it?
The description does not provide enough detail to identify the specific rules or problems it addresses.

Cursor rule for Cursor

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 rules/ghuntley/groundhog/devenv-basic-config
Clone the repo
git clone --depth 1 https://github.com/ghuntley/groundhog

Made for: Cursor.

Per session 7 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 442 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00007 $0.00442
Opus 5 $0.00003 $0.00221
Sonnet 5 $0.00001 $0.00088
Haiku 4.5 $0.00001 $0.00044

Measured 2d ago against content hash f8f22c1967da, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

devenv-basic-config 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

pkgs.curl
.cursor/rules/devenv-basic-config.mdc · 74 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. 2d ago First seen · 74 lines · 7 tokens per session scan A f8f22c1967da

Subscribe to this mod's changes

devenv-basic-config is a cursor rule published in the GitHub repository ghuntley/groundhog (402 stars, last pushed 1y ago), licensed AGPL-3.0. It adds 7 tokens to every session and 442 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.