techdebt
Review a code diff / branch / PR for technical debt — code duplication, unnecessary complexity / over-engineering, and redundant or dead code. Use whenever the user wants a tech-debt, cleanup, or refactor review, asks to check a branch or PR for duplication / complexity / dead code before opening a PR, or mentions "techdebt". Refactor-only: it reports issues and offers behavior-preserving fixes; it never changes behavior.
ソース情報
- リポジトリ
- DataDog/dd-trace-java
- ソースの最終更新活動
- 2026年7月22日 11:26
- 検出された SKILL.md の言語
- 英語
- スター
- 738
- フォーク
- 364
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SKILL.md
ソースの指示 · 読み取り専用プレビュー- name
- techdebt
- description
- Review a code diff / branch / PR for technical debt — code duplication, unnecessary complexity / over-engineering, and redundant or dead code. Use whenever the user wants a tech-debt, cleanup, or refactor review, asks to check a branch or PR for duplication / complexity / dead code before opening a PR, or mentions "techdebt". Refactor-only: it reports issues and offers behavior-preserving fixes; it never changes behavior.
- user-invocable
- true
- context
- fork
- allowed-tools
- ["Bash","Read","Grep","Glob"]
# Techdebt Cleanup Skill
Analyze changes on the current branch to identify and fix technical debt, code duplication, and unnecessary complexity.
## Instructions
### Step 1: Get Branch Changes
Find the merge-base (where this branch diverged from master) and compare against it:
```bash
# Find upstream (DataDog org repo)
UPSTREAM=$(git remote -v | grep -E 'DataDog/[^/]+(.git)?\s' | head -1 | awk '{print $1}')
if [ -z "$UPSTREAM" ]; then
echo "No DataDog upstream found, using origin"
UPSTREAM="origin"
fi
# Find the merge-base (commit where this branch diverged from master)
MERGE_BASE=$(git merge-base HEAD ${UPSTREAM}/master)
echo "Comparing changes introduced on this branch since diverging from master using base commit: $MERGE_BASE"
git diff $MERGE_BASE --stat
git diff $MERGE_BASE --name-status
```
If no changes exist, inform the user and stop.
If changes exist, read the diff and the full content of modified source files (not test files) to understand context.
### Step 2: Analyze for Issues
Look for:
**Code Duplication**
- Similar code blocks that should be extracted into shared functions
- Copy-pasted logic with minor variations
**Unnecessary Complexity**
- Over-engineered solutions (abstractions used only once)
- Excessive indirection or layers
- Backward compatibility shims that aren't needed
**Redundant Code**
- Dead code paths
- Overly defensive checks for impossible scenarios
### Step 3: Report and Fix
Present a concise summary of issues found with file:line references.
Then ask the user if they want you to fix the issues. When fixing:
- Make one logical change at a time
- Do NOT change behavior, only refactor
- Skip trivial or stylistic issues
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