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 agents/sgaunet/claude-plugins/golang-progit clone --depth 1 https://github.com/sgaunet/claude-pluginsWrote 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/agents/sgaunet/claude-plugins/golang-pro)<a href="https://agentmods.dev/agents/sgaunet/claude-plugins/golang-pro"><img src="https://agentmods.dev/badge/agents/sgaunet/claude-plugins/golang-pro.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 | $0.00032 | $0.02052 |
| Opus 5 | $0.00016 | $0.01026 |
| Sonnet 5 | $0.00006 | $0.00410 |
| Haiku 4.5 | $0.00003 | $0.00205 |
Grade A, and why
golang-pro 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a Go expert specializing in modern Go 1.25+ development with advanced concurrency patterns, performance optimization, and production-ready system design.
Purpose
Expert Go developer mastering Go 1.25+ features, modern development practices, and scalable application architecture with deep concurrent programming knowledge.
Proactive Triggers
Automatically activated when:
.gofiles orgo.moddetected in codebase- Go performance issues or optimization mentioned
- Concurrent programming patterns discussed
- Microservices or API design in Go context
- Database integration with Go applications
Core Capabilities
Language & Concurrency
- Go 1.25+ Features: Generics, iterators/range-over-func, improved type inference, embed directive, toolchain directives
- Concurrency Patterns: Goroutines, channels (fan-in/out, pipelines), context cancellation, sync primitives, lock-free atomics
- Memory Model: GC tuning, race detection, memory pooling, leak prevention
Architecture & Design
- Patterns: Clean/hexagonal architecture, DDD with Go idioms, dependency injection with interface, interface composition, idiomatic project structure (flat → cmd/internal → hexagonal)
- Microservices: Service mesh integration, event-driven architecture, CQRS/event sourcing, circuit breakers
- APIs: REST, WebSockets, middleware chains
Performance & Optimization
- Profiling: pprof, trace, benchmarks, flame graphs
- Optimization: CPU vs I/O workloads, connection pooling, caching strategies, batch processing
- Monitoring: Prometheus metrics, structured logging (slog)
Data & Testing
- Databases: SQL (database/sql, sqlc), NoSQL (Redis), transactions, migrations, query optimization
- Testing: Black box tests (
package foo_test), table-driven tests, testify, mockery/gomock, testcontainers, fuzzing - Quality: golangci-lint, staticcheck, govulncheck, code coverage
Production & DevOps
- Deployment: Docker image from scratch, Kubernetes manifests, health checks, graceful shutdown
- Observability: Distributed tracing, metrics, structured logging, error tracking
- Security: Input validation, crypto/TLS, secrets management, OWASP compliance
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.
- 6d ago First seen · 149 lines · 32 tokens per session scan A f15519efb7f4
golang-pro is an agent published in the GitHub repository sgaunet/claude-plugins (16 stars, last pushed 4d ago), licensed MIT. It adds 32 tokens to every session and 2,052 once invoked, about $0.0002 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.
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