go-patterns

go-patterns is a cursor rule for Cursor from compozy/gograph. It costs 1,990 tokens per session, scanned A, original, MIT.

A set of Go programming patterns for Compozy, including factories, concurrency practices, and default configuration values.

In plain words
What is it for?
It guides storage creation, service constructors, configuration defaults, and other recurring implementation patterns.
Why use it?
It helps developers make new Go code follow the project's established structure and behavior instead of introducing one-off approaches.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit It guides storage creation, service constructors, configuration defaults, and other recurring implementation patterns.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/compozy/gograph/go-patterns
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.

Clone the repo
git clone --depth 1 https://github.com/compozy/gograph

Made for: Cursor.

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 go-patterns

README.md
[![agentmods](https://agentmods.dev/badge/rules/compozy/gograph/go-patterns/github.svg)](https://agentmods.dev/rules/compozy/gograph/go-patterns)
Your own site
<a href="https://agentmods.dev/rules/compozy/gograph/go-patterns"><img src="https://agentmods.dev/badge/rules/compozy/gograph/go-patterns/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 go-patterns

Your own site · 80×15
<a href="https://agentmods.dev/rules/compozy/gograph/go-patterns"><img src="https://agentmods.dev/badge/rules/compozy/gograph/go-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,990 This file is loaded in full into every session.
When invoked 1,990 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01990 $0.01990
Opus 5.5 $0.00796 $0.00796
Sonnet 5.5 $0.00398 $0.00398
Haiku 4.5 $0.00199 $0.00199

Measured 1mo ago against content hash 1a3e88074e5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

go-patterns 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 1mo 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/go-patterns.mdc · 366 lines

How it starts

The opening of the file, as written. The whole thing — 366 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Core Go Patterns & Conventions

Concurrency Patterns

Factory Pattern (OCP Implementation)

type StorageFactory struct{} func (f *StorageFactory) CreateStorage(storageType string) (Storage, error) { switch storageType { case "redis": return NewRedisStorage(), nil case "memory": return NewMemoryStorage(), nil default: return nil, fmt.Errorf("unsupported storage type: %s", storageType) } }

// Usage in constructors func NewStorage(config *StorageConfig) (Storage, error) { factory := &StorageFactory{} return factory.CreateStorage(config.Type) }

</pattern>

## Configuration with Defaults

<requirement type="always">
**Always provide defaults:**
</requirement>

<pattern type="configuration_defaults">
```go
func NewService(config *Config) *Service {
    if config == nil {
        config = DefaultConfig() // Always provide defaults
    }
    return &Service{config: config}
}

func DefaultServiceConfig() *ServiceConfig { return &ServiceConfig{ Port: 8080, Timeout: 30 * time.Second, MaxRetries: 3, } }

func NewServiceFromConfig(cfg *ServiceConfig) *Service { if cfg == nil { cfg = DefaultServiceConfig() } return &Service{config: cfg} }

</pattern>

Read the full file on GitHub · 366 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. 1mo ago First seen · 366 lines · 1,990 tokens per session scan A 1a3e88074e5f

Subscribe to this mod's changes

go-patterns is a cursor rule published in the GitHub repository compozy/gograph (9 stars, last pushed 1y ago), licensed MIT. It adds 1,990 tokens to every session, about $0.0080 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.