What is cursor-rules AGENTS.md?

A project guide for a Go command-line program that manages coding-agent files such as rules, commands, skills, agents, and hooks.

It is for navigating the repository, choosing the right package, running focused tests, building the program, and checking changes with tools such as go vet.

It gives an agent the repository’s layout, commands, configuration details, testing instructions, and known runtime problems, reducing incorrect changes.

How ZanzyTHEbar/cursor-rules configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to ZanzyTHEbar/cursor-rules. 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/ZanzyTHEbar/cursor-rules/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/ZanzyTHEbar/cursor-rules

Made for: Codex, OpenCode.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/zanzythebar/cursor-rules/agents-md/github.svg)](https://agentmods.dev/instructions/zanzythebar/cursor-rules/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/zanzythebar/cursor-rules/agents-md"><img src="https://agentmods.dev/badge/instructions/zanzythebar/cursor-rules/agents-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/zanzythebar/cursor-rules/agents-md"><img src="https://agentmods.dev/badge/instructions/zanzythebar/cursor-rules/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 881 This file is loaded in full into every session.

When invoked 881 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00881	$0.00881
Opus 5.5	$0.00352	$0.00352
Sonnet 5.5	$0.00176	$0.00176
Haiku 4.5	$0.00088	$0.00088

Measured 2mo ago against content hash a07c821435fb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cursor-rules AGENTS.md 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 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.

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.

AGENTS.md · 40 lines

How it starts

The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Repo Shape

This is a Go CLI. Entry point: cmd/cursor-rules/main.go.
Keep package boundaries intact: internal/cli wires Cobra/Viper and rendering, internal/app owns use-case orchestration and destination/config resolution, internal/core does filesystem/install/watch work, internal/transform owns Cursor/Copilot conversions, internal/security guards path handling.
Native package layouts are not symmetric:
Rules come from root *.mdc files or package directories.
Commands come from commands/<name>/ or commands/<name>.md, but install commands ... writes Cursor-compatible skills into .cursor/skills/, not .cursor/commands/.
Skills come from skills/<name>/SKILL.md.
Agents come from agents/<name>.md; code still falls back to legacy agent/ if present.
Hooks come from hooks/<preset>/hooks.json plus scripts.

Commands

Build/run: make build, go run ./cmd/cursor-rules <subcommand>.
Focused test packages: go test ./internal/cli/..., go test ./internal/core/..., go test ./cmd/cursor-rules/....
CI-like verification: go vet ./..., make test, make test-coverage, make build, plus golangci-lint run if installed.
Install/sync/watch changes: run scripts/integration_test.sh.
Root e2e workflow: make test-e2e.
Do not use make test-unit; it still targets ./cli/... and currently fails because the code lives under internal/cli.

Config And Runtime Gotchas

CURSOR_RULES_PACKAGE_DIR changes both the source package dir and the default config-dir base: unless CURSOR_RULES_CONFIG_DIR is set, config defaults to the parent of the package dir.
Destination precedence is --dir user|global > --dir <path> > --global > --workdir.
Any CLI command can auto-start the watcher if config has watch: true; this happens in root PersistentPreRunE, not only in cursor-rules watch.
Watcher auto-apply only writes presets listed in watcher-mapping.yaml. autoApply: true without a mapping still watches but skips writes.
sync --apply uses config.presets if present; otherwise it applies every shared preset.
install all with default --target cursor also installs commands, skills, agents, and hooks, not just rules.
CURSOR_RULES_SYMLINK=1 and CURSOR_RULES_USE_GNUSTOW=1 change cursor-target install strategy; enableStow: true only takes effect when stow is on PATH.
cursor-rules config link is the supported way to expose CURSOR_*_DIR overrides back under ~/.cursor/....

Read the full file on GitHub · 40 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.

2mo ago First seen · 40 lines · 881 tokens per session scan A a07c821435fb

Subscribe to this mod's changes

cursor-rules AGENTS.md is an instructions file published in the GitHub repository ZanzyTHEbar/cursor-rules (3 stars, last pushed 6mo ago), licensed MIT. It adds 881 tokens to every session, about $0.0035 per session on Opus 5.5. 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.

Building agents cursor cursor-ai cursor-rules go vibe-coding

cursor-rules AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
cursor-rules AGENTS.mdZanzyTHEbar/cursor-rules	Instructions file	3	6mo ago	MIT	A	881	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

cursor-rules: Instructions file for Codex