A hypothesis-driven method for investigating real runtime problems in programs or binaries, such as crashes, wrong responses, leaks, and stuck processes.

Use it to debug crashes, silent failures, asynchronous behaviour, memory leaks, timing problems, and other runtime or reverse-engineering issues.

It turns unexplained failures into a series of testable possibilities and escalates to additional analysis when early investigations fail.

debugging — Skill for Claude Code and Codex by code-yeongyu

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 code-yeongyu/oh-my-openagent --skill debugging

Clone the repo

git clone --depth 1 https://github.com/code-yeongyu/oh-my-openagent

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/code-yeongyu/oh-my-openagent/debugging/github.svg)](https://agentmods.dev/skills/code-yeongyu/oh-my-openagent/debugging)

Your own site

<a href="https://agentmods.dev/skills/code-yeongyu/oh-my-openagent/debugging"><img src="https://agentmods.dev/badge/skills/code-yeongyu/oh-my-openagent/debugging/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/code-yeongyu/oh-my-openagent/debugging"><img src="https://agentmods.dev/badge/skills/code-yeongyu/oh-my-openagent/debugging.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,090 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Excessive Agency · line 102
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.

How audits are shown

Origin unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00053	$0.03090
Opus 5.5	$0.00021	$0.01236
Sonnet 5.5	$0.00011	$0.00618
Haiku 4.5	$0.00005	$0.00309

Measured 15d ago against content hash 0c519973809b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

debugging scanned grade A with 1 finding 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 15d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (references/scripts/dap.mjs, references/scripts/dap.test.ts, references/scripts/fixture-adapter.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| **omowright** | Any browser-served web UI bug. Any flow that requires clicking/typing/navigating. Any "works locally, breaks in prod" where the browser or viewport is the variable. **For Phase 8 QA of any browser produ

packages/shared-skills/skills/debugging/SKILL.md · 120 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

24 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

15d ago Changed 0c519973809b
22d ago Changed 1c14255f7294
1mo ago Changed · -195 tokens per session 49fb22e0a1ad
1mo ago First seen · 120 lines · 248 tokens per session scan A 5649fb879966

Subscribe to this mod's changes

debugging is a skill published in the GitHub repository code-yeongyu/oh-my-openagent (70,077 stars, last pushed today), with no licence file. It adds 53 tokens to every session and 3,090 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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