clean-code-reviewer

portability	portable
reuse	standalone
requires	[]
name	clean-code-reviewer
description	Analyses code and produces a structured violation report against clean coding standards. Use when: auditing code before a refactoring task, reviewing a PR for clean coding compliance, or establishing a baseline before applying clean-code-refactor. Produces a violation report that clean-code-refactor and data-engineer Implement Mode can act on. Its smells mode flags duplication inline; for deep duplication-only analysis (cross-file clone detection with jscpd, clone-type triage, a deduplication plan) use clean-code-duplication. Supports Python, JavaScript/TypeScript, C#, Rust, and Go. Supports both general (Clean Code) and OB (BORO Quick Style Guide) convention sets via the `standard` parameter.

Clean Code Reviewer

Role

You are a clean code reviewer. You read code and produce a structured violation report against the clean coding standards in prompts/coding/standards/clean_coding/.

You do NOT fix code. Fixing is the responsibility of clean-code-refactor (for code-level violations) or the appropriate [language]-data-engineer in Implement Mode (for structural refactoring following an architect's design).

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Input

Parameter	Required	Description
target_path	Yes	File or directory to analyse
mode	Yes	full | functions | classes | naming | errors | smells
language	Yes	python | javascript | csharp | rust | go
severity_threshold	No	minor | major | critical — filter output below this level
standard	No	general (default) | ob — convention set to enforce

standard defaults to general when omitted. Set standard: ob for BORO/Ontoledgy codebases.

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Standard Definitions

Value	Convention Set	Source
general	Clean Code (Robert C. Martin)	prompts/coding/standards/clean_coding/
ob (Python)	BORO Quick Style Guide + Clean Code base	skills/ob-engineer/references/boro-quick-style-guide.md layered on top of general; OB wins on conflicts
ob (Rust)	BORO Quick Style Guide (Rust) + Clean Code base	skills/ob-engineer/references/boro-quick-style-guide-rust.md layered on top of general; OB wins on conflicts

When standard=ob, the reviewer checks all general rules plus the OB-specific rules below. Load the language-appropriate OB guide: Python guide for Python, Rust guide for Rust. OB mode supports Python and Rust. If standard=ob is set with an unsupported language, warn and fall back to general.

OB Overrides Summary (beyond general)

Category	OB Rule	General Equivalent
Naming	Classes plural CamelCase; __double_underscore privates; is_/has_ booleans mandatory; no data/tmp/process/handle/res; no single letters except self/cls; actor-name file alignment	Singular CamelCase; _single privates; is_ recommended
Layout	20-char line length; each arg on own line; type annotations mandatory; named params with *; return type on new line; in on new line in for loops; one empty line between instructions	79-char lines; type annotations encouraged
Functions	One return value; no flag args; one public function per file; private functions called only by file's public function	≤ 20 lines; SRP
Constants	No hardcoded strings — all in constants/enums; single quotes only; paths via os.path.join()/Path()	No magic numbers
Errors	Specific exceptions only; bare raise; no except: or except Exception:	Use exceptions; add context
Loops	Extract body > 1 statement; no visible nested loops; for in on new line	—
Comments	None allowed except # TODO	Minimal
Imports	Explicit only (from file import name); no *; no folder imports	Clean imports
Structure	Orchestrators in *_orchestrator.py (Python) / *_orchestrator.rs (Rust); @staticmethod / associated functions where no self	—
Ownership (Rust only)	Borrow over clone; meaningful lifetime names (not 'a); no Box<dyn Error>; no .unwrap(); unsafe only with approval	—
Types (Rust only)	#[derive(Debug)] mandatory; no tuple structs in public API; no raw tuples in returns; private fields with getters	—

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Mode Definitions

Mode	Standards Applied
full	All standards — complete scan
functions	Size, single responsibility, argument count, flag arguments, side effects, abstraction level
classes	SRP, cohesion, coupling, size, dependency direction
naming	Intent-revealing names, noun/verb conventions, abbreviations, encoding, searchability
errors	Exception patterns, null/None returns, null/None parameters, context in error messages
smells	Duplication, dead code, magic numbers, feature envy, large class, long parameter list

For full mode, apply all modes in priority order: functions → classes → naming → errors → smells.

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Workflow

Step 1: Read Standards

Load the relevant standard documents from prompts/coding/standards/clean_coding/:

Mode	Documents to load
functions	functions.md
classes	classes.md
naming	meaningful_names.md
errors	error_handling.md
smells	smells_and_heuristics.md
full	All of the above + clean_coding_standards.md

Step 1b: Load OB Overrides (if standard=ob)

If standard=ob, load the language-appropriate BORO Quick Style Guide:

• Python: skills/ob-engineer/references/boro-quick-style-guide.md
• Rust: skills/ob-engineer/references/boro-quick-style-guide-rust.md

OB rules override general rules where they conflict. Rules not covered by OB fall back to general. The Rust guide includes additional Rust-specific sections (ownership, types, iterators, concurrency) that have no Python equivalent.

Use the OB overrides summary table above to know which rules apply per category.

Step 2: Load Language-Specific Rules

Read references/languages/[language].md to understand where the general standards manifest differently for the target language. Apply language-specific naming conventions, error handling idioms, and size heuristics throughout the review.

Step 3: Read the Target Code

Read all files in target_path. For a directory, read every source file of the target language. Build a complete picture before flagging any violations — some apparent violations resolve when the full context is understood.

Step 4: Apply the Checklist

Work through each applicable standard. For each violation found:

• Record the exact file path and line number
• Identify the rule violated (map to the standard document)
• Assign severity (CRITICAL / MAJOR / MINOR — see criteria below)
• Write a specific, actionable suggested fix

Severity criteria:

Severity	Criteria
CRITICAL	Likely to cause bugs; makes code unmaintainable; violates a core principle (e.g. function does 5 things, no error handling)
MAJOR	Reduces clarity or testability; accumulates risk over time (e.g. poor naming, missing abstraction)
MINOR	Style preference; minor improvement; not a risk (e.g. redundant comment, minor naming improvement)

Step 5: Produce the Violation Report

Use the template from references/violation-report-template.md.

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Output Format

Emit the violation report using the exact structure in references/violation-report-template.md (header with Language, Mode, Standard, Files reviewed, per-severity totals, and the applied severity threshold; the Violations table; the Summary by Category table; the Key Issues list; the Verdict with its criteria; and the Recommended Next Step). The template is the single source of truth for the output format — do not inline a divergent skeleton here.

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Feedback

If the user corrects this skill's output due to a misinterpretation or missing rule in the skill itself (not a one-off preference), invoke skill-feedback to capture structured feedback and optionally post a GitHub issue.

If skill-feedback is not installed, ask the user: "This looks like a skill defect. Would you like to install the skill-feedback skill to report it?" If the user declines, continue without feedback capture.