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Agent skill

Golang Security

by HoangNguyen0403 in HoangNguyen0403/agent-skills-standard

Secure Go backend services against common vulnerabilities. An agent skill from HoangNguyen0403/agent-skills-standard.

MITAuto-check passedSecurity

Install Golang Security

skills CLI
$ npx skills add HoangNguyen0403/agent-skills-standard --skill golang-security -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install HoangNguyen0403/agent-skills-standard golang-security --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/golang/golang-security .claude/skills/golang-security && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
golang-security
GitHub stars
572
Token cost
~528 tokens
SKILL.md length
189 words
Files
3 (incl. references)
Skills in repo
211
Repo updated
First seen
Licence
MIT

At a glance

Secure Go backend services against common vulnerabilities. An agent skill from HoangNguyen0403/agent-skills-standard.

  • Implementing input validation
  • SKILL.md covers Priority: P0 (CRITICAL), Implementation Guidelines, Anti-Patterns and References
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • SQL injection prevention in Go

What it does

Golang Security is an agent skill from HoangNguyen0403/agent-skills-standard. Secure Go backend services against common vulnerabilities. Use when implementing input validation, crypto, or SQL injection prevention in Go.

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/implementation.md`).

It sits in Security, covering Web application vulnerabilities. It works with Go. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.

When your agent uses it

  • Implementing input validation
  • SQL injection prevention in Go

Example prompts

  • “/golang-security”

What it can do on your machine

Read from SKILL.md and the folder at commit b529c2d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Golang Security loads about 528 tokens when it runs, and up to ~1k if it reads all its reference files. Until then it costs about 39 tokens; SKILL.md has 189 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~39
When it runs · the whole SKILL.md, loaded when a task matches
~528
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 189 words, ~528 tokens.

Download SKILL.mdSave it as .claude/skills/golang-security/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
golang-security
description
Secure Go backend services against common vulnerabilities. Use when implementing input validation, crypto, or SQL injection prevention in Go.

Golang Security Standards

Priority: P0 (CRITICAL)

Implementation Guidelines

Input Validation
  • Validation: Use go-playground/validator or google/go-cmp for struct validation.
  • Sanitization: Sanitize user input before processing. Use bluemonday for HTML sanitization.
Cryptography
  • Random: ALWAYS use crypto/rand, NEVER math/rand for security-sensitive operations (tokens, keys, IVs).
  • Hashing: Use Argon2id for password hashing (golang.org/x/crypto/argon2). NOT use bcrypt (weaker) or MD5/SHA1 (insecure). Recommended params: time=1, memory=64MB, threads=4.
  • Encryption: Use crypto/aes with GCM mode for authenticated encryption.
SQL Injection Prevention
  • Parameterized Queries: ALWAYS use $1, $2 placeholders with database/sql or ORM (GORM, sqlx).
  • No String Concatenation: Never build queries with fmt.Sprintf().
Authentication
  • JWT: Use golang-jwt/jwt v5+. Enforce RS256 (preferred) or HS256. Reject none and symmetric algorithms for multi-service auth. Validate alg, iss, aud, exp claims.
  • Sessions: Use secure, httpOnly cookies with gorilla/sessions.
Secret Management
  • Environment Variables: Load secrets via godotenv or Kubernetes secrets.
  • No Hardcoding: Never commit API keys, passwords, or tokens to Git.

Anti-Patterns

  • No math/rand for Security: RNG predictable. Use crypto/rand.
  • No fmt.Sprintf() for SQL: Causes SQL injection. Use placeholders.
  • No bcrypt or MD5 for Passwords: Use argon2id exclusively.
  • No Exposed Error Details: Don't leak stack traces to clients in production.

References

© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in skills/golang/golang-security of HoangNguyen0403/agent-skills-standard.

  • SKILL.md
  • evals/evals.json
  • references/implementation.md

Open the folder on GitHubat commit b529c2d

Compare with similar skills

Golang Security next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Golang Security compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Golang Security this skillHoangNguyen0403/agent-skills-standard572—~528Automated safety check: PassMIT
Golang Securityunxed/f42432 repos~3.6kAutomated safety check: PassMIT
Sca AuditOWASP/secure-agent-playbook188—~494Automated safety check: PassCC-BY-4.0
Security Auditoreigent-ai/eigent15k—~1.8kAutomated safety check: NotesApache-2.0
Security Reviewjewbetcha/opentrace11618 repos~3.1kAutomated safety check: NotesMIT
Code Audit3stoneBrother/code-audit8921 repos~2.7kAutomated safety check: PassNone

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Works with

Categories

Questions about Golang Security

What does Golang Security do?

Secure Go backend services against common vulnerabilities. An agent skill from HoangNguyen0403/agent-skills-standard. Golang Security is an agent skill from HoangNguyen0403/agent-skills-standard. Secure Go backend services against common vulnerabilities.

When should I use Golang Security?

Golang Security fits situations like: implementing input validation; SQL injection prevention in Go.

How do I install Golang Security in Claude Code?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill golang-security -a claude-code`. Or copy the skill folder (skills/golang/golang-security in HoangNguyen0403/agent-skills-standard) into .claude/skills/golang-security in your project. Claude Code loads it when a task matches its description.

How do I install Golang Security in Codex?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill golang-security -a codex`. Or copy the skill folder (skills/golang/golang-security in HoangNguyen0403/agent-skills-standard) into .agents/skills/golang-security in your project. Codex loads it when a task matches its description.

Can I use Golang Security in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HoangNguyen0403/agent-skills-standard --skill golang-security -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/golang-security, .gemini/skills/golang-security, .github/skills/golang-security and .opencode/skills/golang-security in your project.

What does Golang Security need to run?

SKILL.md names no scripts, command-line tools or credentials: Golang Security is instructions for the agent only.

Does Golang Security access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Golang Security safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Golang Security use?

Golang Security is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Golang Security use?

About 528 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 497 tokens, read only when the agent opens those files.

What are the alternatives to Golang Security?

Skills that share tags, products or a category with Golang Security: Golang Security (unxed/f4, 243 stars), Sca Audit (OWASP/secure-agent-playbook, 188 stars), Security Auditor (eigent-ai/eigent, 15k stars) and Security Review (jewbetcha/opentrace, 116 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Golang Security?

HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.

Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.