deslop

Clean AI slop from code with certainty-based findings and auto-fixes.

Parse Arguments

const args = '$ARGUMENTS'.split(' ').filter(Boolean);
const mode = args.find(a => ['report', 'apply'].includes(a)) || 'report';
const scope = args.find(a => a.startsWith('--scope='))?.split('=')[1] || 'all';
const thoroughness = args.find(a => a.startsWith('--thoroughness='))?.split('=')[1] || 'normal';

Input

Arguments: [report|apply] [--scope=<path>|all|diff] [--thoroughness=quick|normal|deep]

• Mode: report (default) or apply
• Scope: What to scan
  • all (default): Entire codebase
  • diff: Only files changed in current branch
  • <path>: Specific directory or file
• Thoroughness: Analysis depth (default: normal)
  • quick: Regex patterns only
  • normal: + multi-pass analyzers
  • deep: + CLI tools (jscpd, madge) if available

Detection Pipeline

Phase 1: Run Detection Script

The detection script is at ../../scripts/detect.js relative to this skill.

Run detection (use relative path from skill directory):

# Scripts are at plugin root: ../../scripts/ from skills/deslop/
node ../../scripts/detect.js . --thoroughness normal --compact --max 50

For diff scope (only changed files):

BASE=$(git symbolic-ref refs/remotes/origin/HEAD | sed 's@^refs/remotes/origin/@@' || echo "main")
# Use newline-separated list to safely handle filenames with special chars
git diff --name-only origin/${BASE}..HEAD | \
  xargs -d '\n' node ../../scripts/detect.js --thoroughness normal --compact

Note: The relative path ../../scripts/detect.js navigates from skills/deslop/ up to the plugin root where scripts/ lives.

Phase 2: Repo-Map Enhancement (Optional)

If repo-map exists, enhance detection with AST-based analysis:

// Use relative path from skill directory to plugin lib
// Path: skills/deslop/ -> ../../lib/repo-map
const repoMap = require('../../lib/repo-map');

if (repoMap.exists(basePath)) {
  const map = repoMap.load(basePath);
  const usageIndex = repoMap.buildUsageIndex(map);

  // Find orphaned infrastructure with HIGH certainty
  const orphaned = repoMap.findOrphanedInfrastructure(map, usageIndex);
  for (const item of orphaned) {
    findings.push({
      file: item.file,
      line: item.line,
      pattern: 'orphaned-infrastructure',
      message: `${item.name} (${item.type}) is never used`,
      certainty: 'HIGH',
      severity: 'high',
      autoFix: false
    });
  }

  // Find unused exports
  const unusedExports = repoMap.findUnusedExports(map, usageIndex);
  for (const item of unusedExports) {
    findings.push({
      file: item.file,
      line: item.line,
      pattern: 'unused-export',
      message: `Export '${item.name}' is never imported`,
      certainty: item.certainty,
      severity: 'medium',
      autoFix: false
    });
  }
}

Phase 3: Aggregate and Prioritize

Sort findings by:

1. Certainty: HIGH before MEDIUM before LOW
2. Severity: high before medium before low
3. Fix complexity: auto-fixable before manual

Phase 4: Return Structured Results

Skill returns structured JSON - does NOT apply fixes (orchestrator handles that).

Output Format

JSON structure between markers:

=== DESLOP_RESULT ===
{
  "mode": "report|apply",
  "scope": "all|diff|path",
  "filesScanned": N,
  "findings": [
    {
      "file": "src/api.js",
      "line": 42,
      "pattern": "debug-statement",
      "message": "console.log found",
      "certainty": "HIGH",
      "severity": "medium",
      "autoFix": true,
      "fixType": "remove-line"
    }
  ],
  "fixes": [
    {
      "file": "src/api.js",
      "line": 42,
      "fixType": "remove-line",
      "pattern": "debug-statement"
    }
  ],
  "summary": {
    "high": N,
    "medium": N,
    "low": N,
    "autoFixable": N
  }
}
=== END_RESULT ===

Certainty Levels

| Level | Meaning | Action | |-------|---------|--------| | HIGH | Definitely slop, safe to auto-fix | Auto-fix via simple-fixer | | MEDIUM | Likely slop, needs verification | Review first | | LOW | Possible slop, context-dependent | Flag only |

Pattern Categories

HIGH Certainty (Auto-Fixable)

• debug-statement: console.log, console.debug, print, println!
• debug-import: Unused debug/logging imports
• placeholder-text: "Lorem ipsum", "TODO: implement"
• empty-catch: Empty catch blocks without comment
• trailing-whitespace: Trailing whitespace
• mixed-indentation: Mixed tabs/spaces

MEDIUM Certainty (Review Required)

• excessive-comments: Comment/code ratio > 2:1
• doc-code-ratio: JSDoc > 3x function body
• stub-function: Returns placeholder value only
• dead-code: Unreachable after return/throw
• infrastructure-without-impl: DB clients created but never used

LOW Certainty (Flag Only)

• over-engineering: File/export ratio > 20x
• buzzword-inflation: Claims without evidence
• shotgun-surgery: Files frequently change together

Fix Types

| Fix Type | Action | Patterns | |----------|--------|----------| | remove-line | Delete line | debug-statement, debug-import | | add-comment | Add explanation | empty-catch | | remove-block | Delete code block | stub-function with TODO |

Error Handling

• Git not available: Skip git-dependent checks
• Invalid scope: Return error in JSON
• Parse errors: Skip file, continue scan

Integration

This skill is invoked by:

• deslop-agent for /deslop command
• /next-task Phase 8 (pre-review gates) with scope=diff

The orchestrator spawns simple-fixer to apply HIGH certainty fixes.