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.
npx agentmods add rules/compozy/gograph/go-patternsgit clone --depth 1 https://github.com/compozy/gographWhat 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 | $0.01990 | $0.01990 |
| Opus 5 | $0.00995 | $0.00995 |
| Sonnet 5 | $0.00398 | $0.00398 |
| Haiku 4.5 | $0.00199 | $0.00199 |
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 yesterday.
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.
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>
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.
- yesterday First seen · 366 lines · 1,990 tokens per session scan A 1a3e88074e5f
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 $0.0100 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 2026-08-31.
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