R Function Input Validation
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Validates arguments of exported R functions with the standalone check_* type checkers from rlang, in tidyverse style with clear error messages.
“Apply Steve McConnell-inspired construction rules when implementing routines, variables, classes, control flow, defensive code, or tests.”
Install Code Complete Construction Rules
$ npx skills add ciembor/agent-rules-books --skill code-complete -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ciembor/agent-rules-books code-complete --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/ciembor/agent-rules-books.git skills-src && mkdir -p .claude/skills && cp -r skills-src/code-complete .claude/skills/code-complete && rm -rf skills-srcUse ~/.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/
Install the "code-complete" agent skill from https://github.com/ciembor/agent-rules-books/tree/main/code-complete into .claude/skills/code-complete/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-complete", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/ciembor/agent-rules-books/tree/main/code-completeType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add ciembor/agent-rules-books --skill code-complete -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ciembor/agent-rules-books code-complete --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ciembor/agent-rules-books.git skills-src && mkdir -p .agents/skills && cp -r skills-src/code-complete .agents/skills/code-complete && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "code-complete" agent skill from https://github.com/ciembor/agent-rules-books/tree/main/code-complete into .agents/skills/code-complete/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-complete", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ciembor/agent-rules-books --skill code-complete -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ciembor/agent-rules-books code-complete --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ciembor/agent-rules-books.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/code-complete .cursor/skills/code-complete && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "code-complete" agent skill from https://github.com/ciembor/agent-rules-books/tree/main/code-complete into .cursor/skills/code-complete/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-complete", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/ciembor/agent-rules-books.git --path code-complete--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add ciembor/agent-rules-books --skill code-complete -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ciembor/agent-rules-books code-complete --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ciembor/agent-rules-books.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/code-complete .gemini/skills/code-complete && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "code-complete" agent skill from https://github.com/ciembor/agent-rules-books/tree/main/code-complete into .gemini/skills/code-complete/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-complete", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install ciembor/agent-rules-books code-completeInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add ciembor/agent-rules-books --skill code-complete -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ciembor/agent-rules-books.git skills-src && mkdir -p .github/skills && cp -r skills-src/code-complete .github/skills/code-complete && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "code-complete" agent skill from https://github.com/ciembor/agent-rules-books/tree/main/code-complete into .github/skills/code-complete/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-complete", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ciembor/agent-rules-books --skill code-complete -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ciembor/agent-rules-books code-complete --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ciembor/agent-rules-books.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/code-complete .opencode/skills/code-complete && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "code-complete" agent skill from https://github.com/ciembor/agent-rules-books/tree/main/code-complete into .opencode/skills/code-complete/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-complete", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
code-complete- GitHub stars
- 2.9k
- Token cost
- ~165 tokens
- SKILL.md length
- 57 words
- Files
- 4
- Skills in repo
- 14
- Repo updated
- First seen
- Licence
- MIT
At a glance
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
About this skill
Code Complete Construction Rules is a skill in ciembor/agent-rules-books (2.9k stars). Its SKILL.md is about 165 tokens, with 3 other files in the folder. Licence: MIT.
What it can do on your machine
Read from SKILL.md and the folder at commit 893a88a. 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
Code Complete Construction Rules loads about 165 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 57 words of instructions outside code blocks.
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 ciembor/agent-rules-books at commit 893a88a, republished under its MIT licence (© ciembor). 57 words, ~165 tokens.
Download SKILL.mdSave it as
.claude/skills/code-complete/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- code-complete
- description
- Apply Steve McConnell-inspired construction rules when implementing routines, variables, classes, control flow, defensive code, or tests.
- license
- MIT
Code Complete Skill
Use this skill when a task involves disciplined software construction: routine design, variable use, class design, control flow, defensive programming, coding standards, or implementation testing.
Before making design or code decisions, read and apply code-complete.mini.md. Use code-complete.md only as a deeper reference when the mini rules are not enough for the current construction tradeoff.
© ciembor, 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 3 other files in code-complete of ciembor/agent-rules-books.
- SKILL.md
- code-complete.md
- code-complete.mini.md
- code-complete.nano.md
Open the folder on GitHubat commit 893a88a
Compare with similar skills
Code Complete Construction Rules 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Code Complete Construction Rules this skillciembor/agent-rules-books | 2.9k | — | ~165 | Automated safety check: Pass | MIT | |
| R Function Input Validationtidyverse/dplyr | 5.1k | 1 repos | ~2.3k | Automated safety check: Pass | Custom licence | |
| Cross-Language Coding Standardszereight/gitlab-mcp | 2k | 1 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Code Qualitypiomin/claude-ai-spring-boot | 1.3k | — | ~2.2k | Automated safety check: Pass | Apache-2.0 | |
| Python Devdatabricks-solutions/ai-dev-kit | 1.9k | — | ~1.6k | Automated safety check: Pass | Custom licence | |
| Blindspot Code Critiqueyologdev/yoyo-evolve | 1.9k | — | ~2.2k | Automated safety check: Pass | MIT |
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Shared reference for naming, function size, complexity and error handling rules that reviewer agents apply across TypeScript, Python, Go, Rust, Java, C# and Swift.
Code Quality
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Comprehensive code review for Java - clean code principles, API contracts, null safety, exception handling, and performance.
Python Dev
databricks-solutions/ai-dev-kit
Python development guidance with code quality standards, error handling, testing practices, and environment management.
Blindspot Code Critique
yologdev/yoyo-evolve
Runs a structured critique of code, architecture or APIs to surface what familiarity hides, such as panics, security holes and design debt.
Go Development Guidelines
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Sets idiomatic Go conventions with a test-first workflow, using testify/require for assertions and mockery for mocks, for new features, packages and refactors.
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Apply Martin Kleppmann-inspired data-system rules when designing reliability, scalability, consistency, replication, transactions, streams, or schema evolution.
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Apply Eric Evans-inspired DDD rules when modeling a complex domain, defining bounded contexts, protecting ubiquitous language, or designing aggregates.
Related
Categories
Questions about Code Complete Construction Rules
How do I install Code Complete Construction Rules in Claude Code?
Run `npx skills add ciembor/agent-rules-books --skill code-complete -a claude-code`. Or copy the skill folder (code-complete in ciembor/agent-rules-books) into .claude/skills/code-complete in your project. Claude Code loads it when a task matches its description.
How do I install Code Complete Construction Rules in Codex?
Run `npx skills add ciembor/agent-rules-books --skill code-complete -a codex`. Or copy the skill folder (code-complete in ciembor/agent-rules-books) into .agents/skills/code-complete in your project. Codex loads it when a task matches its description.
Can I use Code Complete Construction Rules 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 ciembor/agent-rules-books --skill code-complete -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-complete, .gemini/skills/code-complete, .github/skills/code-complete and .opencode/skills/code-complete in your project.
What does Code Complete Construction Rules need to run?
SKILL.md names no scripts, command-line tools or credentials: Code Complete Construction Rules is instructions for the agent only.
Does Code Complete Construction Rules 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 Code Complete Construction Rules 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 Code Complete Construction Rules use?
Code Complete Construction Rules 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 Code Complete Construction Rules use?
About 165 tokens (SKILL.md is roughly 660 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Code Complete Construction Rules?
Skills that share tags, products or a category with Code Complete Construction Rules: R Function Input Validation (tidyverse/dplyr, 5.1k stars), Cross-Language Coding Standards (zereight/gitlab-mcp, 2k stars), Code Quality (piomin/claude-ai-spring-boot, 1.3k stars) and Python Dev (databricks-solutions/ai-dev-kit, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Code Complete Construction Rules?
ciembor (a GitHub user) maintains it in ciembor/agent-rules-books, which has 2,921 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on September 10, 2026.
Source: ciembor/agent-rules-books on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.