debug

debug is a command for Claude Code from nyldn/claude-octopus. It costs 9 tokens per session (262 once invoked), scanned A, a copy of octo-debug, MIT.

A systematic debugging workflow for investigating software problems step by step.

In plain words
What is it for?
Use it to investigate failing tests, login failures, memory leaks, API errors, and timeouts.
Why use it?
It helps move from reproducing an issue to isolating its cause, testing explanations, and checking the fix.

Command for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the octo plugin — 70 skills, 106 commands, 10 agents, 18 hooks shipped together

Good fit Use it to investigate failing tests, login failures, memory leaks, API errors, and timeouts.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/nyldn/claude-octopus/debug
About the project

Claude Octopus is an orchestration project that sends research, design, and coding tasks to Claude Code and other AI model providers so their results can be compared. Developers use it for multi-model work, disagreement detection, reviews, persistent context, and an optional workflow that moves from discovery through delivery. The catalogue entries are its commands, skills, agents, instructions, hooks, plugins, and settings.

nyldn/claude-octopus · 4,056 stars · on GitHub · reddit.com

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.

Clone the repo
git clone --depth 1 https://github.com/nyldn/claude-octopus

Made for: Claude Code.

Or install octo, the plugin that ships this one along with the rest of its 70 skills, 106 commands, 10 agents, 18 hooks.

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/commands/nyldn/claude-octopus/debug.svg)](https://agentmods.dev/commands/nyldn/claude-octopus/debug)
Your own site
<a href="https://agentmods.dev/commands/nyldn/claude-octopus/debug"><img src="https://agentmods.dev/badge/commands/nyldn/claude-octopus/debug.svg" alt="Measured on agentmods" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 262 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 92% copy Near-identical to another mod 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 $0.00009 $0.00262
Opus 5 $0.00005 $0.00131
Sonnet 5 $0.00002 $0.00052
Haiku 4.5 $0.00001 $0.00026

Measured yesterday against content hash 16846874b39b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, 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 yesterday.

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.

Origin

This is a copy

92% identical to octo-debug — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

commands/debug.md · 29 lines

What it actually says

Octopus debug

Load skills/blocks/engineering-method-selection.md from the installed plugin and apply only the methods relevant to this task. Preserve this entry point's execution contract and output format. Read referenced skills as instructions; do not invoke the current command recursively or add provider calls from a seat.

Load and follow ${HOME}/.claude-octopus/plugin/.claude/skills/skill-debug/SKILL.md and its literal skills/blocks/debug-feedback-loop.md reference.

Treat --peer-review as an instruction to request one bounded independent review through existing Octopus routing. Never interpolate the flag or user text into a shell command. Natural-language independent-review requests have the same meaning. Otherwise run on the current host with zero additional provider dispatches unless an existing escalation policy both requires and permits review under the effective preferences and billing limits. Risk alone does not authorize a paid call; honor explicit host-only requests.

Finish with the structured reproduction record. complete requires the original scenario to pass and temporary instrumentation to be removed. Use inconclusive when the required environment was unavailable.

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. yesterday Changed · -20 lines · +1 tokens per session 16846874b39b
  2. 5d ago First seen · 49 lines · 8 tokens per session scan A 7fdf096434fb

Subscribe to this mod's changes

debug is a command published in the GitHub repository nyldn/claude-octopus (4,056 stars, last pushed today), licensed MIT. It adds 9 tokens to every session and 262 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to octo-debug, differing in 3 lines, and is treated as a copy.