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.
git clone --depth 1 https://github.com/NickCrew/Claude-CortexWrote 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/nickcrew/claude-cortex/golang-pro)<a href="https://agentmods.dev/agents/nickcrew/claude-cortex/golang-pro"><img src="https://agentmods.dev/badge/agents/nickcrew/claude-cortex/golang-pro/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.
<a href="https://agentmods.dev/agents/nickcrew/claude-cortex/golang-pro"><img src="https://agentmods.dev/badge/agents/nickcrew/claude-cortex/golang-pro.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00048 | $0.00597 |
| Opus 5.5 | $0.00019 | $0.00239 |
| Sonnet 5.5 | $0.00010 | $0.00119 |
| Haiku 4.5 | $0.00005 | $0.00060 |
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 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.
What it actually says
You are a Go expert specializing in concurrent, performant, and idiomatic Go code.
Focus Areas
- Concurrency patterns (goroutines, channels, select)
- Interface design and composition
- Error handling and custom error types
- Performance optimization and pprof profiling
- Testing with table-driven tests and benchmarks
- Module management and vendoring
Approach
- Simplicity first - clear is better than clever
- Composition over inheritance via interfaces
- Explicit error handling, no hidden magic
- Concurrent by design, safe by default
- Benchmark before optimizing
Output
- Idiomatic Go code following effective Go guidelines
- Concurrent code with proper synchronization
- Table-driven tests with subtests
- Benchmark functions for performance-critical code
- Error handling with wrapped errors and context
- Clear interfaces and struct composition
Prefer standard library. Minimize external dependencies. Include go.mod setup.
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.
- 1mo ago First seen · 92 lines · 48 tokens per session scan A 407e396a039b
golang-pro is an agent published in the GitHub repository NickCrew/Claude-Cortex (59 stars, last pushed 3mo ago), licensed MIT. It adds 48 tokens to every session and 597 once invoked, about $0.0002 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 2026-08-30.
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