debug

debug is a skill for Claude Code from drn/dots. It costs 26 tokens per session (2,297 once invoked), scanned A, original, MIT.

A debugging method that sends several investigators to examine different possible causes of the same software problem. They compare and challenge their explanations to identify a likely root cause.

In plain words
What is it for?
Use it for bugs, failing tests, error messages, or unexpected behaviour when you want competing explanations and a root-cause analysis.
Why use it?
It helps when a bug has several plausible explanations or ordinary debugging has stalled. It requires Claude Code's experimental agent-team setting to be enabled.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: mentions Claude Code.

Good fit Use it for bugs, failing tests, error messages, or unexpected behaviour when you want competing explanations and a root-cause analysis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/drn/dots/debug
View source ↗ drn/dots
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 drn/dots --skill debug
Clone the repo
git clone --depth 1 https://github.com/drn/dots

Made for: Claude Code.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/drn/dots/debug/github.svg)](https://agentmods.dev/skills/drn/dots/debug)
Your own site
<a href="https://agentmods.dev/skills/drn/dots/debug"><img src="https://agentmods.dev/badge/skills/drn/dots/debug/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for debug

Your own site · 80×15
<a href="https://agentmods.dev/skills/drn/dots/debug"><img src="https://agentmods.dev/badge/skills/drn/dots/debug.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,297 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00026 $0.02297
Opus 5.5 $0.00010 $0.00919
Sonnet 5.5 $0.00005 $0.00459
Haiku 4.5 $0.00003 $0.00230

Measured 1mo ago against content hash df17c00c0372, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

debug 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 1mo 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.

agents/skills/debug/SKILL.md · 289 lines

How it starts

The opening of the file, as written. The whole thing — 289 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competing Hypotheses Debugging

Spawn multiple investigators to debug a problem in parallel. Each pursues a different theory and they argue with each other to converge on the root cause.

Prerequisites

Agent teams must be enabled in Claude Code settings:

CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1

If agent teams are not enabled, report: "Agent teams required. Add CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1 to your Claude Code settings (env section)." and stop.

Arguments

  • $ARGUMENTS - Required: description of the bug, failing test, error message, or unexpected behavior

If no arguments are provided, ask the user what they're debugging.

Context

  • Current branch: !git branch --show-current
  • Git status: !git status --short
  • Project root: !pwd
  • Project type: !find . -maxdepth 1 \( -name go.mod -o -name Gemfile -o -name package.json -o -name Cargo.toml -o -name pyproject.toml -o -name setup.py -o -name requirements.txt -o -name pom.xml -o -name build.gradle -o -name Makefile \) 2>/dev/null | head -5
  • Recent commits: !git log --oneline -10
  • Test files: !find . -maxdepth 4 -name "*_test.*" -o -name "*.test.*" -o -name "*_spec.*" 2>/dev/null | head -10

Overview

You are the lead investigator coordinating a debugging team. Your job is to formulate hypotheses, assign them to investigators, moderate the debate, and produce a root cause analysis.

Problem to debug: $ARGUMENTS

You do NOT investigate yourself. You formulate hypotheses, assign them, moderate debate, and synthesize findings.

Why this works: A single agent investigating a bug tends to anchor on the first plausible explanation. Multiple agents pursuing different theories in parallel, then actively trying to disprove each other, surface the actual root cause faster.


Phase 0: Setup

  1. Clean working tree: If there are uncommitted changes, commit them with message "WIP: pre-debug-session state" before proceeding.

  2. Analyze the problem from $ARGUMENTS and the context above.

Read the full file on GitHub · 289 lines

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. 1mo ago First seen · 289 lines · 26 tokens per session scan A df17c00c0372

Subscribe to this mod's changes

debug is a skill published in the GitHub repository drn/dots (23 stars, last pushed 11d ago), licensed MIT. It adds 26 tokens to every session and 2,297 once invoked, about $0.0001 per session on Opus 5.5. 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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