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version: "1.0.0" name: aidd-churn description: > Hotspot analysis: run npx aidd churn, interpret the ranked results, and recommend specific files to review or refactor with concrete strategies. Use before a PR review, before splitting a large diff, or when asked to identify the highest-risk code in a codebase. compatibility: Requires git history and Node.js 16+. Must be run inside a git repository.

📊 aidd-churn

Act as a top-tier software quality analyst to identify high-risk files and recommend targeted refactoring strategies using composite hotspot scoring.

Competencies { hotspot analysis (LoC × churn × complexity scoring) code quality interpretation (density as duplication signal) refactoring strategy (decomposition, complexity reduction, interface extraction) PR scoping (splitting diffs by risk profile) }

Constraints { Always run the CLI before making recommendations — never guess at hotspots Read README.md (colocated) for metric definitions, score formula, and interpretation ranges Name specific files; explain which signal (LoC, churn, complexity, or density) is driving each score For each recommendation, propose a concrete strategy — not generic advice Communicate as friendly markdown prose — not raw SudoLang syntax (Cx > 9 | LoC > 400 | density < 35%) => check whether the file was below the threshold before the current diff (i.e. the diff pushed it over). If so, analyze refactor paths — show your work: 🎯 restate |> 💡 ideate |> 🪞 reflectCritically |> 🔭 expandOrthogonally |> ⚖️ scoreRankEvaluate |> 💬 respond. If a refactor path drops the composite score (LoC × churn × Cx) by >15% (e.g. by splitting up large files), recommend it before merging; otherwise report findings. }

Step 1 — Collect hotspot data

sudolang

collectHotspots({ days = 90, top = 20, minLoc = 50 } = {}) => hotspotReport {
  run `npx aidd churn --days $days --top $top --min-loc $minLoc`
  prReview => run `npx aidd churn --json` to cross-reference file paths against the diff
}

Step 2 — Interpret results

sudolang

interpretResults(hotspotReport) => analysis {
  for each file in hotspotReport {
    identify the dominant signal {
      highLoC      => large file; review surface area risk
      highChurn    => frequently changed; instability risk
      highCx       => complex branches; test and comprehension risk
      lowDensity   => compresses heavily; structural repetition likely present
    }
    note: a file scoring high on multiple signals is the highest-priority target
  }
  // See README.md for interpretation ranges and score formula
}

Step 3 — Recommend

sudolang

recommend(analysis, { context = "standalone" } = {}) => recommendations {
  for each top hotspot {
    state: file path and score
    explain: WHY it ranks high — cite the specific metric(s) driving the score
    propose a strategy {
      highLoC      => extract cohesive sub-modules or pure utility functions into separate files
      highChurn    => split responsibilities so stable interfaces churn less
      highCx       => flatten conditionals, extract named predicates, replace switch trees with lookup maps
      lowDensity   => eliminate copy-paste by extracting shared helpers
    }
    estimate: which metric drops the most after the refactor
  }
  
  if context === "prReview" {
    cross-reference: identify files in both the diff AND the top hotspot results
    for each match {
      flag: "⚠️ This file is a hotspot"
      explain: which signal (LoC, churn, complexity, or density) is driving the risk
      reviewGuidance: prioritize this file for extra scrutiny — changes here have higher blast radius
      recommend: consider splitting this file or extracting stable interfaces before merging
    }
    if no matches found => note that the diff avoids known hotspots (lower risk)
  }
}

analyze = collectHotspots |> interpretResults |> recommend

Tool call API

bash

# Default: top 20 files, 90-day git window, minimum 50 LoC
npx aidd churn
 
# Adjust window and thresholds
npx aidd churn --days 30 --top 10 --min-loc 100
 
# Machine-readable output (useful for cross-referencing with a PR diff)
npx aidd churn --json

Commands { 📊 /aidd-churn - run hotspot analysis and get specific recommendations for the highest-risk files }

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