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 skills add dirkkok101/skills --skill diagnosegit clone --depth 1 https://github.com/dirkkok101/skillsWrote 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/dirkkok101/skills/diagnose)<a href="https://agentmods.dev/skills/dirkkok101/skills/diagnose"><img src="https://agentmods.dev/badge/skills/dirkkok101/skills/diagnose/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.
<a href="https://agentmods.dev/skills/dirkkok101/skills/diagnose"><img src="https://agentmods.dev/badge/skills/dirkkok101/skills/diagnose.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00063 | $0.05564 |
| Opus 5 | $0.00032 | $0.02782 |
| Sonnet 5 | $0.00013 | $0.01113 |
| Haiku 4.5 | $0.00006 | $0.00556 |
Grade A, and why
diagnose 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 9d 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 — 609 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Diagnose: Symptom → Root Cause → Resolution
Philosophy: Understand WHAT is happening before deciding what to do. Evidence over assumption. Reproduce before theorizing. The right response might be a 5-line fix or a full redesign — diagnosis tells you which.
Duration targets: Fix-in-place ~15-30 minutes, targeted beads ~30-60 minutes (diagnosis + bead creation), design escalation ~20-30 minutes (diagnosis only, then hand off). Most time should be spent on Phases 1-2 (reproduce and isolate). If you're spending more time on the fix than on understanding the problem, you may be fixing a symptom, not a cause.
Why This Matters
Bugs are the most common interrupt in software development, yet most debugging time is wasted on the wrong hypothesis. Studies show developers spend 35-50% of their time debugging, but the majority of that time goes to understanding the problem, not writing the fix. The fix itself is usually small — the hard part is finding the right place to fix.
AI agents make this worse when they guess instead of investigate. Without a systematic approach, agents attempt shotgun fixes — changing code based on surface symptoms, introducing new bugs, and burning context window on dead ends. A structured diagnostic process prevents this by enforcing evidence collection before any code changes and escalating appropriately when the fix exceeds simple scope.
Trigger Conditions
Run this skill when:
- Something is broken or behaving unexpectedly
- User reports a bug or error
- Tests are failing unexpectedly
- User says "this isn't working", "there's a bug", "why is this happening"
- Behavior doesn't match expectations
Do NOT use for:
- New feature development →
/brainstorm - Performance optimization → Different investigation pattern
- Code quality improvements →
/review
Stage Gates — AskUserQuestion
At every PAUSE point in this skill, call the AskUserQuestion tool to present structured options to the user. Do not present options as plain markdown text — use the tool. The YAML blocks at each PAUSE point show the exact parameters to pass.
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.
- 9d ago First seen · 609 lines · 63 tokens per session scan A 92803b54efc3
diagnose is a skill published in the GitHub repository dirkkok101/skills (2 stars, last pushed 5mo ago), licensed MIT. It adds 63 tokens to every session and 5,564 once invoked, about $0.0003 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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