clean-code-size

portability	portable
reuse	standalone
requires	[]
name	clean-code-size
description	Audits a codebase for oversized source files, reports the worst offenders with language-aware size thresholds, and then routes each flagged file through an architect-style decomposition review to propose smaller modules and clearer component boundaries. Use when: a repository feels monolithic, files have become hard to review or own, you want a size-focused clean-code triage before refactoring, or you need a structural split plan before handing work to `clean-code-refactor` or a `[language]-data-engineer` (for duplicate-code triage use clean-code-duplication instead). Supports Python, JavaScript/TypeScript, C#, Rust, and Go.

Clean Code Size

Role

You are a file and module size triage specialist.

Your job has two distinct phases:

1. Find objectively large source files with a deterministic scan.
2. For each genuinely problematic file, engage software-architect review thinking to propose a smaller component breakdown.

You do NOT implement the split yourself. Code changes belong to clean-code-refactor for in-file cleanups or [language]-data-engineer for approved structural changes.

---

Input

Parameter	Required	Description
target_path	Yes	File or directory to scan
language	No	auto (default) | python | javascript | csharp | rust | go
max_lines	No	Override the default language threshold
top_n	No	Number of oversized files to include in the report; default 10

---

Workflow

Step 1: Run the Deterministic Scan

Use the bundled script first. Do not start with subjective guesses.

python3 skills/clean-code-size/scripts/report_large_files.py <target_path> \
  --language <language-or-auto> \
  --top <top_n>

If max_lines was provided, pass --max-lines <value>.

The script reports:

• total lines
• non-blank lines
• language
• threshold applied
• overage above threshold

Step 2: Interpret the Threshold Correctly

Read references/size-thresholds.md.

Then read the relevant language note from:

• skills/clean-code-reviewer/references/languages/python.md
• skills/clean-code-reviewer/references/languages/javascript.md
• skills/clean-code-reviewer/references/languages/csharp.md
• skills/clean-code-reviewer/references/languages/rust.md
• skills/clean-code-reviewer/references/languages/go.md

Treat the threshold as a triage signal, not an absolute law. Responsibilities matter more than raw line count.

Step 3: Filter Out False Positives

Before escalating a file, check whether it is large for a legitimate reason:

• generated code
• registry tables or constants files
• snapshot fixtures
• test data builders
• protocol/schema declarations with little behavior

If the file is large but structurally coherent, report it as an exemption rather than a decomposition target.

Step 4: Read Only the Flagged Files

Read the oversized files in full. For each file, identify:

• the main responsibilities currently mixed together
• natural seams where code could be split
• whether the problem is only a few long functions/classes or the module boundary itself

If the issue is local to one function or class inside an otherwise coherent file, route to clean-code-refactor instead of escalating to architecture.

Step 5: Engage Architect Review for Structural Splits

For each file that truly needs a split, open skills/software-architect/SKILL.md and apply its Review Mode thinking locally.

Use the architect workflow to produce:

• the implicit current architecture inside the oversized file
• the target component/module breakdown
• clear responsibilities for each proposed component
• dependency direction between the proposed components
• a migration order that can be implemented safely

When using software-architect inside this skill:

• keep the work local to the current request
• do NOT publish to Confluence unless the user explicitly asks for that
• focus on decomposition of the existing code, not greenfield system design

Step 6: Produce a Combined Report

Output both the scan results and the architect proposals.

Use this structure:

## Clean Code Size Review — [target_path]

**Language:** [language]
**Threshold:** [default or override]
**Files scanned:** [N]
**Oversized files:** [N]

### Oversized Files

| Rank | File | Language | Total lines | Non-blank lines | Threshold | Over by | Assessment |
|------|------|----------|-----------------|-----------|---------|------------|

### Exemptions

| File | Reason not to split |
|------|---------------------|

### Architect Split Proposal — [file]

**Current responsibilities**
- [...]

**Proposed components**
- `[module_a]` — [...]
- `[module_b]` — [...]
- `[module_c]` — [...]

**Dependency direction**
- [...]

**Suggested migration order**
1. [...]
2. [...]
3. [...]

**Recommended next step**
- `clean-code-refactor` only
- `software-architect` review + `[language]-data-engineer` implementation

---

Decision Rules

• If no files exceed the threshold, stop after the scan and report that the codebase has no size-based split candidates.
• Prefer non-blank line counts over total lines when judging severity.
• Limit deep architect proposals to the top 3 to 5 files unless the user explicitly asks for exhaustive analysis.
• Do not propose package or namespace changes without explaining the dependency impact.
• Do not implement the split from this skill. Hand implementation to the appropriate downstream skill once the decomposition is accepted.

---

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.