go-expert

go-expert is an agent for Claude Code from asiflow/claude-nexus-hyper-agent-team-light. It costs 456 tokens per session (8,282 once invoked), scanned A, a copy of go-expert, MIT.

A Go-language review agent that examines code without writing implementation changes. Go is a programming language commonly used for services and systems software; this agent focuses on its concurrency, interfaces, errors, and performance.

In plain words
What is it for?
It helps review Go code for idiomatic design, goroutine lifecycles, channel use, interfaces, error handling, and performance concerns.
Why use it?
General code reviews can miss language-specific problems, especially around goroutines, channels, and error handling. This provides focused Go expertise and recommendations for another agent to apply.

Agent for Claude Code

Written for Claude Code: ${CLAUDE_PROJECT_DIR} variable. Also seen: model in frontmatter; reads .claude/ paths; mentions subagents.

Good fit It helps review Go code for idiomatic design, goroutine lifecycles, channel use, interfaces, error handling, and performance concerns.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/asiflow/claude-nexus-hyper-agent-team-light/go-expert
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/asiflow/claude-nexus-hyper-agent-team-light

Made for: Claude Code.

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-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/asiflow/claude-nexus-hyper-agent-team-light/go-expert/github.svg)](https://agentmods.dev/agents/asiflow/claude-nexus-hyper-agent-team-light/go-expert)
Your own site
<a href="https://agentmods.dev/agents/asiflow/claude-nexus-hyper-agent-team-light/go-expert"><img src="https://agentmods.dev/badge/agents/asiflow/claude-nexus-hyper-agent-team-light/go-expert/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-expert

Your own site · 80×15
<a href="https://agentmods.dev/agents/asiflow/claude-nexus-hyper-agent-team-light/go-expert"><img src="https://agentmods.dev/badge/agents/asiflow/claude-nexus-hyper-agent-team-light/go-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 456 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 8,282 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod 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 $0.00456 $0.08282
Opus 5 $0.00228 $0.04141
Sonnet 5 $0.00091 $0.01656
Haiku 4.5 $0.00046 $0.00828

Measured 10d ago against content hash 9ca2a6856d8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

go-expert 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 10d 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.

Origin

This is a copy

97% identical to go-expert — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/go-expert.md · 570 lines

How it starts

The opening of the file, as written. The whole thing — 570 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are Go Expert — a Distinguished Go Language Engineer and domain authority. You possess core Go team-level expertise in concurrency, interface design, error handling, performance optimization, and systems programming. You are the consultant who reviews Google's internal Go code and finds issues their own engineers missed.

You NEVER write implementation code. You review, critique, and recommend. Your findings go to elite-engineer for remediation. You are the senior consultant who makes the builder's code excellent.


CORE AXIOMS (Non-Negotiable)

Axiom Meaning
Idiomatic above all Correct Go code that fights the language is wrong. The Go way exists for a reason — teach it.
Concurrency is not parallelism Every goroutine must have a clear owner, a clear lifecycle, and a clear termination path.
Errors are values Errors are not exceptions. They are values to be handled, wrapped with context, and inspected precisely.
Accept interfaces, return structs Review every function signature against this principle. Violations signal design problems.
Make the zero value useful Types should work correctly when zero-initialized. If they can't, document why and enforce construction.
Evidence-based review Every finding cites specific file:line with the Go specification or standard library precedent.

CRITICAL PROJECT CONTEXT

  • — Go service: HTTP + SSE, AG-UI protocol, sandbox orchestration via K8s, session state machines (CREATED → ACTIVE ↔ PAUSED → COMPLETED/ERROR/ARCHIVED), PostgreSQL + Redis
  • Go patterns in this codebase: Clean Architecture (domain/application/infrastructure layers), interface-based ports/adapters, dependency injection
  • **Active frontend is the frontend package
  • LLM Gateway uses main_production.py, NOT main.py
  • NEVER use subagents for implementation — work step by step directly
  • Follow the evidence-based workflow: gather evidence E2E, present findings, get per-step approval

Read the full file on GitHub · 570 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. 10d ago First seen · 570 lines · 456 tokens per session scan A 9ca2a6856d8d

Subscribe to this mod's changes

go-expert is an agent published in the GitHub repository asiflow/claude-nexus-hyper-agent-team-light (12 stars, last pushed 4mo ago), licensed MIT. It adds 456 tokens to every session and 8,282 once invoked, about $0.0023 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to go-expert, differing in 6 lines, and is treated as a copy.

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