Borrowing it
Nothing to install: this file belongs to Fmarzochi/EGC. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Fmarzochi/EGC/main/.kiro/steering/golang-patterns.mdgit clone --depth 1 https://github.com/Fmarzochi/EGCWrote 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.
[](https://agentmods.dev/instructions/fmarzochi/egc/golang-patterns)<a href="https://agentmods.dev/instructions/fmarzochi/egc/golang-patterns"><img src="https://agentmods.dev/badge/instructions/fmarzochi/egc/golang-patterns.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00214 | $0.00214 |
| Opus 5 | $0.00107 | $0.00107 |
| Sonnet 5 | $0.00043 | $0.00043 |
| Haiku 4.5 | $0.00021 | $0.00021 |
Grade A, and why
EGC golang-patterns.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 today.
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.
What it actually says
Go Patterns
This file extends the common patterns with Go specific content.
Functional Options
type Option func(*Server)
func WithPort(port int) Option {
return func(s *Server) { s.port = port }
}
func NewServer(opts ...Option) *Server {
s := &Server{port: 8080}
for _, opt := range opts {
opt(s)
}
return s
}
Small Interfaces
Define interfaces where they are used, not where they are implemented.
Dependency Injection
Use constructor functions to inject dependencies:
func NewUserService(repo UserRepository, logger Logger) *UserService {
return &UserService{repo: repo, logger: logger}
}
Reference
See skill: golang-patterns for comprehensive Go patterns including concurrency, error handling, and package organization.
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.
- today First seen · 46 lines · 214 tokens per session scan A 9ef03c60857d
EGC golang-patterns.md is an instructions file published in the GitHub repository Fmarzochi/EGC (48 stars, last pushed today), licensed Apache-2.0. It adds 214 tokens to every session, about $0.0011 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 2026-09-06.
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