Skills Guide

Go Error Diagnosis and Fixing

VerifiedSafe

This skill diagnoses and fixes Go errors by analyzing error messages, identifying the cause, applying fixes, and verifying with build/test/lint commands. It helps when encountering compilation, runtime, or lint errors during Go development.

Download and use
Sby Skills Guide Bot
DevelopmentIntermediate
6/2/2026
Claude CodeCursorWindsurf
#go#error-fixing#debugging#linting#build-errors

Recommended for

Backend developerClaude CodeCode reviewFrontend developerCursorFullstack developer

Automated summary

This skill diagnoses and fixes errors in Go projects, including compile-time, runtime, and lint errors.

Strengths

  • Automatically analyzes error messages to pinpoint file, line number, and error type
  • Fixes common Go errors (type mismatches, undefined variables, nil pointer dereferences, lint violations)
  • Verifies fixes with go build, go test, and golangci-lint after each correction

Limitations

  • May not resolve errors requiring deep domain-specific knowledge
  • Relies on the quality and clarity of the error messages from the compiler or linter
  • Cannot substitute for human code review for complex logical bugs
When to use it

Use this skill when you encounter a Go build, test, or lint error and want a fast, automated fix.

When not to use it

Do not use it for architectural decisions or algorithmic errors that require a high-level understanding of the business logic.

Security analysis

Safe
Quality score85/100

The skill only runs standard Go development commands (go build, go test, golangci-lint) in the project directory without any destructive or exfiltrating actions. No risky patterns like curl|sh or deletions are present.

No concerns found

How this analysis is made

Examples

Build error fix
Fix the build error in my Go project
Lint error correction
Fix all lint errors in the current directory
Test failure diagnosis
My Go tests are failing, can you help fix them?

name: fix-error description: Go のエラーを診断し修正する。「エラーを直して」「ビルドエラー修正」「コンパイルエラー」「Go のエラー修正」「ビルドが通らない」「テストが失敗」「lint エラー修正」などで起動。 allowed-tools: [Read, Write, Edit, Bash, Glob, Grep] context: fork agent: shiiman-go:error-analyzer

Fix Error

Go のエラーを診断し修正するスキル。

トリガー

  • 「エラーを直して」「ビルドエラー修正」「コンパイルエラー」
  • 「Go のエラー修正」「ビルドが通らない」「テストが失敗」「lint エラー修正」

実行内容

  1. エラーメッセージの解析
  2. 原因の特定
  3. 修正の実施
  4. 修正確認

Claude への指示

実行手順

  1. エラー情報の収集

    ユーザーがエラーメッセージを提供していない場合:

    # ビルドエラー確認
go build ./... 2>&1

# テストエラー確認
go test ./... 2>&1

# lint エラー確認
golangci-lint run ./... 2>&1

  2. エラー解析

    エラーメッセージから以下を特定:

    • ファイル名と行番号
    • エラータイプ（コンパイル/ランタイム/lint）
    • 具体的なエラー内容

  3. 原因特定

    # 該当ファイルを読み込み
Read ツールで該当箇所を確認

# 関連コードを検索
Grep ツールで定義や使用箇所を検索

  4. 修正実施

    error-analyzer エージェントの知識を活用:

    • コンパイルエラー: 型エラー、未定義、インポート
    • ランタイムエラー: nil ポインタ、範囲外アクセス
    • lint エラー: errcheck、staticcheck、gosimple

  5. 修正確認

    go build ./...
go test ./...
golangci-lint run ./...

出力形式

## エラー修正完了

### 検出されたエラー
- 種類: {コンパイル/ランタイム/lint}
- 箇所: {ファイル名}:{行番号}
- 内容: {エラーメッセージ}

### 原因
{原因の説明}

### 修正内容
{修正した内容の説明}

### 確認結果
- ビルド: ✅ 成功
- テスト: ✅ 成功

From the file to a first result

The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.

View the source and supporting files

This download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.

1. Download the file

Download SKILL.md

From the root of a test project, save the file as .skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.

Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.

mkdir -p '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/go-error-diagnosis-and-fixing-mm78nmxo/download' --output '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md.part' && mv '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md.part' '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md'

2. Check prerequisites

Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.

No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.

The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.

3. Load the skill

After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.

Claude Code
test -f '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md' && test -s '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/fix-error' && cp -R '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo' '.claude/skills/fix-error'

Cursor
test -f '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md' && test -s '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md' && mkdir -p '.cursor/skills' && test ! -e '.cursor/skills/fix-error' && cp -R '.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo' '.cursor/skills/fix-error'

OpenSkills

OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.

Official OpenSkills installation
openskills install './.skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo'

openskills read 'go-error-diagnosis-and-fixing-mm78nmxo'

Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.

For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.

openskills sync

Manual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.

4. Try a first task

Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:

Read .skill-downloads/go-error-diagnosis-and-fixing-mm78nmxo/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.

Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.

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