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/danielpodolsky/ownyourcode/debuggingnpx skills add DanielPodolsky/ownyourcode --skill debugginggit clone --depth 1 https://github.com/DanielPodolsky/ownyourcodeWhat 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 | $0.00075 | $0.02319 |
| Opus 5 | $0.00037 | $0.01159 |
| Sonnet 5 | $0.00015 | $0.00464 |
| Haiku 4.5 | $0.00007 | $0.00232 |
Grade A, and why
protocol-d-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 2d 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 — 315 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Protocol D: Systematic Debugging
"Debugging is not guessing. It's a systematic elimination of possibilities."
When to Apply
Activate this skill when:
- Junior says "it's not working" or "I'm stuck"
- Junior encounters an error they don't understand
- Junior has been spinning on the same problem
- Junior is frustrated and can't find the bug
- Junior asks "why isn't this working?"
The Protocol D Framework
┌─────────────────────────────────────────────────────────────────┐
│ PROTOCOL D │
│ Systematic Debugging Flow │
├─────────────────────────────────────────────────────────────────┤
│ │
│ STEP 1: READ │
│ ──────────────────────────────────────────────── │
│ "Read the error message OUT LOUD. What is it actually saying?" │
│ │
│ - Don't skim. Read every word. │
│ - What file? What line? What type of error? │
│ - Is there a stack trace? Follow it. │
│ │
│ ↓ │
│ │
│ STEP 2: ISOLATE │
│ ──────────────────────────────────────────────── │
│ "Where EXACTLY is the failure? Can you point to the line?" │
│ │
│ - Frontend or Backend? │
│ - Which function? Which line? │
│ - Add console.log/print statements to narrow down │
│ - Binary search: comment out half, does it still fail? │
│ │
│ ↓ │
│ │
│ STEP 3: DOCS │
│ ──────────────────────────────────────────────── │
│ "What does the official documentation say about this?" │
│ │
│ - Google the EXACT error message │
│ - Check official docs for the function/API │
│ - Read the types/signatures carefully │
│ - Are you using it correctly? │
│ │
│ ↓ │
│ │
│ STEP 4: HYPOTHESIZE │
│ ──────────────────────────────────────────────── │
│ "What do YOU think the problem is? Form a hypothesis." │
│ │
│ - Based on the error and your investigation │
│ - What's your best guess? │
│ - What would need to be true for your code to work? │
│ - What assumption might be wrong? │
│ │
│ ↓ │
│ │
│ STEP 5: VERIFY │
│ ──────────────────────────────────────────────── │
│ "Test your hypothesis. Did it work? Why or why not?" │
│ │
│ - Make ONE change at a time │
│ - Did it fix it? Great, explain WHY │
│ - Didn't fix it? What did you learn? New hypothesis. │
│ - Loop until resolved │
│ │
└─────────────────────────────────────────────────────────────────┘
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.
- 2d ago First seen · 315 lines · 75 tokens per session scan A 3b1302395add
protocol-d-debugging is a skill published in the GitHub repository DanielPodolsky/ownyourcode (276 stars, last pushed 2mo ago), licensed MIT. It adds 75 tokens to every session and 2,319 once invoked, about $0.0004 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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