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Agent skill

Go Language Correctness

by hashgraph-online in hashgraph-online/awesome-codex-plugins

Review and improve Go language-level correctness across numeric conversions, overflow, slices, maps, range loops, comparisons, strings, runes, UTF-8, defer evaluation, and version-dependent semantics.

MITAuto-check passedDevelopment

Install Go Language Correctness

skills CLI
$ npx skills add hashgraph-online/awesome-codex-plugins --skill go-language-correctness -a claude-code

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

GitHub CLI
$ gh skill install hashgraph-online/awesome-codex-plugins go-language-correctness --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/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/LVTD-LLC/skills/skills/go-language-correctness .claude/skills/go-language-correctness && 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
go-language-correctness
GitHub stars
1.3k
Token cost
~692 tokens
SKILL.md length
233 words
Files
8 (incl. references)
Skills in repo
714
Repo updated
First seen
Licence
MIT

At a glance

Review and improve Go language-level correctness across numeric conversions, overflow, slices, maps, range loops, comparisons, strings, runes, UTF-8, defer evaluation, and version-dependent semantics.

  • Works in 7 steps: Record the module and file language… → Identify external numeric, binary, and… → Trace slice and map ownership, aliasing,… → …
  • Reviewing agent-generated Go
  • SKILL.md covers Core Workflow, Read Next, Guardrails and Source Notes
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Go Language Correctness is an agent skill from hashgraph-online/awesome-codex-plugins. Review and improve Go language-level correctness across numeric conversions, overflow, slices, maps, range loops, comparisons, strings, runes, UTF-8, defer evaluation, and version-dependent semantics. Use when reviewing agent-generated Go, debugging surprising mutation or memory retention, validating parsing and text handling, or checking code that depends on representation, aliasing, iteration, or runtime behavior.

Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. The skill folder holds 11 other files, including reference files (for example `agents/openai.yaml`, `guidelines.md` and `references/language-correctness/checklist.md`). Compatibility notes: Codex, Claude Code, and other Agent Skills-compatible clients.

It sits in Development. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is MIT.

When your agent uses it

  • Reviewing agent-generated Go
  • Debugging surprising mutation
  • Memory retention
  • Validating parsing and text handling

Example prompts

  • “/go-language-correctness”

Requirements

  • Compatibility (from SKILL.md): Codex, Claude Code, and other Agent Skills-compatible clients.

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Record the module and file language versions plus supported targets.
  2. Identify external numeric, binary, and text boundaries.
  3. Trace slice and map ownership, aliasing, capacity authority, and retention.
  4. Review range copying, mutation, ordering, control flow, and resource scope.
  5. Distinguish bytes, runes, UTF-8 validity, and user-perceived characters.
  6. Separate language guarantees from compiler, runtime, and architecture details.
  7. Add focused boundary tests and run the repository's analyzers.

What it can do on your machine

Read from SKILL.md and the folder at commit 9e7b281. 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

    Links to these hosts (documentation or services it may open):

    • go.dev
    • pkg.go.dev

    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.

  • Compatibility

    Codex, Claude Code, and other Agent Skills-compatible clients.

    From compatibility in the SKILL.md frontmatter.

Context cost

Go Language Correctness loads about 692 tokens when it runs, and up to ~3k if it reads all its reference files. Until then it costs about 111 tokens; SKILL.md has 233 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~111
When it runs · the whole SKILL.md, loaded when a task matches
~692
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3k

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 hashgraph-online/awesome-codex-plugins at commit 9e7b281, republished under its MIT licence (© hashgraph-online). 233 words, ~692 tokens.

Download SKILL.mdSave it as .claude/skills/go-language-correctness/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.
name
go-language-correctness
description
Review and improve Go language-level correctness across numeric conversions, overflow, slices, maps, range loops, comparisons, strings, runes, UTF-8, defer evaluation, and version-dependent semantics. Use when reviewing agent-generated Go, debugging surprising mutation or memory retention, validating parsing and text handling, or checking code that depends on representation, aliasing, iteration, or runtime behavior.
compatibility
Codex, Claude Code, and other Agent Skills-compatible clients.
license
MIT
metadata.version
0.1.0
metadata.displayName
Go Language Correctness
metadata.category
Go
metadata.tags
go,golang,correctness,code-review,slices,maps,unicode

Go Language Correctness

Review guarantees before implementation details. Establish the module's Go language version, then trace representation, ownership, iteration, and text semantics through observable behavior.

Core Workflow

  1. Record the module and file language versions plus supported targets.
  2. Identify external numeric, binary, and text boundaries.
  3. Trace slice and map ownership, aliasing, capacity authority, and retention.
  4. Review range copying, mutation, ordering, control flow, and resource scope.
  5. Distinguish bytes, runes, UTF-8 validity, and user-perceived characters.
  6. Separate language guarantees from compiler, runtime, and architecture details.
  7. Add focused boundary tests and run the repository's analyzers.
TaskLoad
Run a complete correctness reviewguidelines.md, workflows/review-language-correctness.md
Review guarantees and version boundariesreferences/language-correctness/knowledge.md
Apply implementation and review rulesreferences/language-correctness/rules.md
Inspect compact bad/good patternsreferences/language-correctness/examples.md
Verify a change before completionreferences/language-correctness/checklist.md

Guardrails

  • Do not convert before checking sign, width, or arithmetic bounds.
  • Do not describe a view, reslice, or clipped capacity as an independent copy.
  • Do not rely on map order, append growth, bucket layout, or compiler heuristics.
  • Do not apply pre-Go-1.22 loop-capture advice without checking language version.
  • Do not call byte length, rune count, or grapheme count "characters" without defining it.
  • Route measured performance claims to go-performance-testing.

Source Notes

Guidance is transformed and paraphrased from Teiva Harsanyi, 100 Go Mistakes and How to Avoid Them (Manning, 2022), especially Chapters 3-6. Examples are original.

Verify current contracts against https://go.dev/ref/spec, https://go.dev/doc/go1.22, https://pkg.go.dev/builtin, and https://pkg.go.dev/strings.

© hashgraph-online, 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 7 other files (references) in plugins/LVTD-LLC/skills/skills/go-language-correctness of hashgraph-online/awesome-codex-plugins.

  • SKILL.md
  • agents/openai.yaml
  • guidelines.md
  • references/language-correctness/checklist.md
  • references/language-correctness/examples.md
  • references/language-correctness/knowledge.md
  • references/language-correctness/rules.md
  • workflows/review-language-correctness.md

Open the folder on GitHubat commit 9e7b281

Compare with similar skills

Go Language Correctness 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.

Go Language Correctness compared with similar skills
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Go Language Correctness this skillhashgraph-online/awesome-codex-plugins1.3k—~692Automated safety check: PassMIT
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PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Go Language Correctness

What does Go Language Correctness do?

Review and improve Go language-level correctness across numeric conversions, overflow, slices, maps, range loops, comparisons, strings, runes, UTF-8, defer evaluation, and version-dependent semantics. Go Language Correctness is an agent skill from hashgraph-online/awesome-codex-plugins. Review and improve Go language-level correctness across numeric conversions, overflow, slices, maps, range loops, comparisons, strings, runes, UTF-8, defer evaluation, and version-dependent semantics.

When should I use Go Language Correctness?

Go Language Correctness fits situations like: reviewing agent-generated Go; debugging surprising mutation; memory retention; validating parsing and text handling.

How do I install Go Language Correctness in Claude Code?

Run `npx skills add hashgraph-online/awesome-codex-plugins --skill go-language-correctness -a claude-code`. Or copy the skill folder (plugins/LVTD-LLC/skills/skills/go-language-correctness in hashgraph-online/awesome-codex-plugins) into .claude/skills/go-language-correctness in your project. Claude Code loads it when a task matches its description.

How do I install Go Language Correctness in Codex?

Run `npx skills add hashgraph-online/awesome-codex-plugins --skill go-language-correctness -a codex`. Or copy the skill folder (plugins/LVTD-LLC/skills/skills/go-language-correctness in hashgraph-online/awesome-codex-plugins) into .agents/skills/go-language-correctness in your project. Codex loads it when a task matches its description.

Can I use Go Language Correctness 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 hashgraph-online/awesome-codex-plugins --skill go-language-correctness -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/go-language-correctness, .gemini/skills/go-language-correctness, .github/skills/go-language-correctness and .opencode/skills/go-language-correctness in your project.

What does Go Language Correctness need to run?

SKILL.md names no scripts, command-line tools or credentials: Go Language Correctness is instructions for the agent only. Compatibility (from SKILL.md): Codex, Claude Code, and other Agent Skills-compatible clients..

Does Go Language Correctness access the network?

SKILL.md names 2 domains. As links in the text: go.dev and pkg.go.dev. This is read from the text; nothing was executed.

Is Go Language Correctness 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 Go Language Correctness use?

Go Language Correctness is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Go Language Correctness use?

About 692 tokens (SKILL.md is roughly 2.8k 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 2.3k tokens, read only when the agent opens those files.

What are the alternatives to Go Language Correctness?

Skills that share tags, products or a category with Go Language Correctness: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Go Language Correctness?

hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,255 GitHub stars. The repository holds 714 skills in this directory. The repository was last updated on October 9, 2026.

Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.