debug-helper

debug-helper is a skill for Claude Code, Codex from athola/skrills. It costs 12 tokens per session (157 once invoked), scanned A, original, MIT.

A step-by-step method for finding and fixing software problems. It covers reproducing an issue, isolating its cause, testing a hypothesis, applying a fix, and verifying the result.

In plain words
What is it for?
Use it to investigate bugs, analyze error messages and stack traces, compare working and broken states, and check that a fix solves the original problem.
Why use it?
It replaces guesswork with a repeatable investigation process. It also suggests ways to inspect errors, logs, inputs, outputs, breakpoints, and recent code changes.

Skill for Claude CodeCodex

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

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.

agentmods
npx agentmods add skills/athola/skrills/debug-helper
Any agent
npx skills add athola/skrills --skill debug-helper
Clone the repo
git clone --depth 1 https://github.com/athola/skrills

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 debug-helper

README.md
[![agentmods](https://agentmods.dev/badge/skills/athola/skrills/debug-helper.svg)](https://agentmods.dev/skills/athola/skrills/debug-helper)
Your own site
<a href="https://agentmods.dev/skills/athola/skrills/debug-helper"><img src="https://agentmods.dev/badge/skills/athola/skrills/debug-helper.svg" alt="Measured on agentmods" height="20"></a>
Per session 12 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 157 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00012 $0.00157
Opus 5 $0.00006 $0.00078
Sonnet 5 $0.00002 $0.00031
Haiku 4.5 $0.00001 $0.00016

Measured 6d ago against content hash b8d9a93311da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

debug-helper 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 6d 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.

assets/demo-skills/debug-helper/SKILL.md · 30 lines

What it actually says

Debug Helper

A systematic approach to debugging software issues.

Investigation Steps

  1. Reproduce the issue consistently
  2. Isolate the problem area
  3. Form a hypothesis
  4. Test the hypothesis
  5. Apply the fix
  6. Verify the solution

Common Debugging Techniques

  • Add logging at critical points
  • Use breakpoints and step-through debugging
  • Check input/output at boundaries
  • Review recent changes in version control
  • Compare working vs broken states

Error Analysis

  • Read error messages carefully
  • Check stack traces for root cause
  • Verify assumptions about data types and values
  • Look for off-by-one errors and null references
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. 6d ago First seen · 30 lines · 12 tokens per session scan A b8d9a93311da

Subscribe to this mod's changes

debug-helper is a skill published in the GitHub repository athola/skrills (69 stars, last pushed 2d ago), licensed MIT. It adds 12 tokens to every session and 157 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 2026-08-30.

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