tech-stack

A set of rules for choosing and using a project's technology stack. It covers core technologies, state management, user-interface components, forms, and validation.

In plain words
What is it for?
Use it when choosing a technology stack, selecting state-management and UI tools, or deciding how forms and validation should be handled.
Why use it?
It gives developers a consistent basis for selecting tools for common application needs. This helps avoid ad hoc choices across the project.

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/wjgogogo/cursor-rules/tech-stack
Clone the repo
git clone --depth 1 https://github.com/wjgogogo/cursor-rules

Made for: Cursor.

Per session 2,174 This file is loaded in full into every session.
When invoked 2,174 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.02174 $0.02174
Opus 5 $0.01087 $0.01087
Sonnet 5 $0.00435 $0.00435
Haiku 4.5 $0.00217 $0.00217

Measured 2d ago against content hash 9b94691dc149, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

tech-stack 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.

.cursor/rules/tech-stack.mdc · 292 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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 · 292 lines · 2,174 tokens per session scan A 9b94691dc149

Subscribe to this mod's changes

tech-stack is a cursor rule published in the GitHub repository wjgogogo/cursor-rules (22 stars, last pushed 10mo ago), with no licence file. It adds 2,174 tokens to every session, about $0.0109 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.