systematic-debugging

65 / 100 · Review before installing

Check before installing. Some of what it can do is expected: a data skill usually connects to databases or online services with your credentials.

By MadAppGang/claude-code (GitHub) · data · 288 stars · scanned at commit 6097ad4

Use when debugging failures, errors, or unexpected behavior. Covers root cause investigation, data flow tracing, hypothesis-driven debugging, and fix verification to prevent trial-and-error approaches.

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

The author does not mention this. It runs automatically when the plugin is installed.

Found in 7 places.

plugins/dev/skills/discipline/systematic-debugging/SKILL.md, line 310git bisect start
plugins/dev/.mcp.json, line 3"command": "claudish",
plugins/dev/hooks/feature-enforcement.json, line 43"command": "node ${CLAUDE_PLUGIN_ROOT}/plugins/dev/scripts/outer-loop-enforcer.js start-iteration ${SESSION_PATH}",

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plugins/dev/hooks/feature-enforcement.json, line 49"command": "node ${CLAUDE_PLUGIN_ROOT}/plugins/dev/scripts/outer-loop-enforcer.js record-result ${SESSION_PATH} <PASS|FAIL|PARTIAL> [reason] [score]",
plugins/dev/hooks/feature-enforcement.json, line 55"command": "node ${CLAUDE_PLUGIN_ROOT}/plugins/dev/scripts/outer-loop-enforcer.js check-can-complete ${SESSION_PATH}",
plugins/dev/hooks/feature-enforcement.json, line 61"command": "node ${CLAUDE_PLUGIN_ROOT}/plugins/dev/scripts/validation-criteria-enforcer.js ${SESSION_PATH}",
plugins/dev/hooks/feature-enforcement.json, line 67"command": "${CLAUDE_PLUGIN_ROOT}/plugins/dev/scripts/checkpoint-verifier.sh <phase> ${SESSION_PATH}",

Sends data to these websites: api.example.com, 192.168.1.100, {api_host}

The author does not mention this. Expected for a data skill.

Found in 10 places.

plugins/dev/skills/discipline/systematic-debugging/SKILL.md, line 424response = requests.get('https://api.example.com/users')
plugins/dev/skills/discipline/systematic-debugging/SKILL.md, line 434response = requests.get('https://api.example.com/users', timeout=30)
plugins/dev/skills/discipline/systematic-debugging/SKILL.md, line 448response = requests.get(

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plugins/dev/skills/discipline/systematic-debugging/SKILL.md, line 459response = requests.get('http://192.168.1.100/users')
plugins/dev/skills/discipline/systematic-debugging/SKILL.md, line 473response = requests.get(f'http://{API_HOST}/users')
plugins/dev/agents/devops.md, line 601. WebSearch: "{technology} {task} best practices 2026"
plugins/dev/agents/devops.md, line 612. WebSearch: "{technology} official documentation {specific feature}"
plugins/dev/agents/devops.md, line 623. WebSearch: "{technology} {task} example"
plugins/dev/commands/feature.md, line 1063if curl -s ${test_url} > /dev/null 2>&1; then
plugins/dev/commands/implement.md, line 542if curl -s ${testUrl} > /dev/null 2>&1; then

Downloads and installs other software

The author does not mention this.

Found in 11 places.

plugins/dev/agents/doc-fixer.md, line 318npx my-tool init
plugins/dev/agents/doc-fixer.md, line 319npx my-tool migrate
plugins/dev/agents/doc-fixer.md, line 343npx my-tool

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plugins/dev/agents/ui-engineer.md, line 319elif npx claudish --list-accounts 2>/dev/null | grep -q "gemini"; then
plugins/dev/agents/ui-engineer.md, line 333npx claudish --model "$GEMINI_MODEL" --image "$SCREENSHOT_PATH" --quiet --auto-approve <<< "
plugins/dev/agents/ui-engineer.md, line 347npx claudish --model "$GEMINI_MODEL" \
plugins/dev/agents/ui-engineer.md, line 360npx claudish --model "$GEMINI_MODEL" --image "$NEW_SCREENSHOT_PATH" --quiet --auto-approve <<< "
plugins/dev/agents/ui.md, line 339- Verify Claudish is available: `npx claudish --version`
plugins/dev/agents/ui.md, line 363npx claudish --model "$GEMINI_MODEL" \
plugins/dev/commands/help.md, line 187- **Claudish CLI** (`npm install -g claudish`) - External AI model reviews
plugins/dev/commands/ui.md, line 358npx claudish --version 2>/dev/null || echo "Claudish not found"

Changes files outside its own folder

The author does not mention this.

Found in 2 places.

plugins/dev/agents/doc-fixer.md, line 346mkdir ~/.npm-global
plugins/dev/commands/worktree.md, line 134- Remove statusline worktree marker: `rm -f ~/.claude/.statusline-worktree-*`

Safer alternatives

Low-risk skills in the same category (data) that look related. Check that one does what you need.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'systematic-debugging' ] || [ -L ~/.agents/skills/'systematic-debugging' ]; then echo 'A skill folder named systematic-debugging already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/MadAppGang/claude-code' "$d" && git -C "$d" checkout --quiet '6097ad4643f23b7645a9c99c329887b623b32e57' -- 'plugins/dev/skills/discipline/systematic-debugging' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/dev/skills/discipline/systematic-debugging' ~/.agents/skills/'systematic-debugging' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'systematic-debugging' ~/.claude/skills/'systematic-debugging' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-12	`6097ad4`	65