systematic-debugging

systematic-debugging is a skill for Claude Code, Codex from lubochka/xiigen-general-skills. It costs 24 tokens per session (173 once invoked), scanned A, original, Apache-2.0.

A structured method for investigating unclear failures, regressions, or unstable behavior. It records possible explanations, tests them one at a time, and updates the investigation from each result.

In plain words
What is it for?
Use it to investigate bugs, failed tests, regressions, intermittent behavior, and reduced reproductions while recording commands, observations, and hypotheses.
Why use it?
It replaces random edits and guesswork with a reproducible trail of evidence. This makes it easier to narrow down the real cause of a problem.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to investigate bugs, failed tests, regressions, intermittent behavior, and reduced reproductions while recording commands, observations, and hypotheses.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lubochka/xiigen-general-skills/systematic-debugging
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add lubochka/xiigen-general-skills --skill systematic-debugging
Clone the repo
git clone --depth 1 https://github.com/lubochka/xiigen-general-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for systematic-debugging

README.md
[![agentmods](https://agentmods.dev/badge/skills/lubochka/xiigen-general-skills/systematic-debugging.svg)](https://agentmods.dev/skills/lubochka/xiigen-general-skills/systematic-debugging)
Your own site
<a href="https://agentmods.dev/skills/lubochka/xiigen-general-skills/systematic-debugging"><img src="https://agentmods.dev/badge/skills/lubochka/xiigen-general-skills/systematic-debugging.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 173 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00024 $0.00173
Opus 5 $0.00012 $0.00086
Sonnet 5 $0.00005 $0.00035
Haiku 4.5 $0.00002 $0.00017

Measured 8d ago against content hash 395d58800f64, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

systematic-debugging scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agent-skills/systematic-debugging/SKILL.md · 34 lines

What it actually says

Systematic Debugging

Purpose

Make debugging reproducible and disciplined.

When to Use

Use for unclear failures, regressions, or unstable behavior.

Inputs

Symptoms, hypotheses, commands, code boundaries, observations.

Steps

  1. Write down hypotheses.
  2. Test one hypothesis at a time.
  3. Record the observation.
  4. Update the hypothesis list before changing direction.

Gates

Debugging has a clear trail of tested ideas and outcomes.

Evidence

Debug notes, command output, reduced repro, or identified culprit.

Anti-Patterns

Random edits, mixed hypotheses, and unrecorded attempts.

debug-session, root-cause-tracing

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 34 lines · 24 tokens per session scan A 395d58800f64

Subscribe to this mod's changes

systematic-debugging is a skill published in the GitHub repository lubochka/xiigen-general-skills (1 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 24 tokens to every session and 173 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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