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.
npx agentmods add skills/qball-inc/the-bulwark/issue-debuggingnpx skills add QBall-Inc/the-bulwark --skill issue-debugginggit clone --depth 1 https://github.com/QBall-Inc/the-bulwarkWrote 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.
[](https://agentmods.dev/skills/qball-inc/the-bulwark/issue-debugging)<a href="https://agentmods.dev/skills/qball-inc/the-bulwark/issue-debugging"><img src="https://agentmods.dev/badge/skills/qball-inc/the-bulwark/issue-debugging.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00039 | $0.02624 |
| Opus 5 | $0.00019 | $0.01312 |
| Sonnet 5 | $0.00008 | $0.00525 |
| Haiku 4.5 | $0.00004 | $0.00262 |
Grade A, and why
issue-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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 391 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Issue Debugging
Systematic methodology for debugging that prevents the "first error fix and declare done" anti-pattern. Ensures root cause analysis, impact assessment, and verified fixes.
When to Use This Skill
Load this skill when the user request matches ANY of these patterns:
| Trigger Pattern | Example User Request |
|---|---|
| Bug investigation | "Why is X failing?", "Debug this error", "Investigate this issue" |
| Test failures | "Tests are failing", "Fix the broken tests", "Why did CI fail?" |
| Error analysis | "Getting this error...", "Exception in...", "Stack trace shows..." |
| Regression hunting | "This used to work", "Something broke after...", "Regression in..." |
| Fix validation | "Did the fix work?", "Verify this change", "Make sure it's fixed" |
| Root cause requests | "What's causing this?", "Find the root cause", "Why does this happen?" |
DO NOT use for:
- New feature implementation (no existing bug)
- Refactoring without reported issues
- General code questions
Overview
The Problem
AI (and developers) often fix the first visible error and declare victory without verifying end-user functionality works. This leads to:
- Symptom fixes instead of root cause fixes
- Regressions in seemingly unrelated areas
- False confidence in fix completeness
The Solution
This skill provides:
- Root Cause Analysis - Find the actual cause, not just symptoms
- Impact Analysis - Map affected areas and dependencies
- Validation Planning - Tiered test priorities (P1/P2/P3)
- Confidence Assessment - Objective fix reliability rating
- Escalation Triggers - When manual testing is required
Root Cause Analysis
The 5 Whys Method
Iteratively ask "Why?" to drill past symptoms to root cause:
Problem: Login fails with 500 error
├─ Why? → API returns null for user profile
├─ Why? → Database query found no records
├─ Why? → Migration didn't run on deploy
├─ Why? → Deployment script skipped migration step
└─ Why? → Environment variable missing
Root Cause: Missing environment variable (not the 500 error)
What ships with it
2 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.
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.
- 4d ago First seen · 391 lines · 39 tokens per session scan A f0250d5ffeea
issue-debugging is a skill published in the GitHub repository QBall-Inc/the-bulwark (8 stars, last pushed yesterday), licensed MIT. It adds 39 tokens to every session and 2,624 once invoked, about $0.0002 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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