windbg-kernel-bugcheck-triage

windbg-kernel-bugcheck-triage is a skill for Claude Code from microsoft/win-dev-skills. It costs 50 tokens per session (1,245 once invoked), scanned A, original, MIT.

A WinDbg workflow for investigating a Windows kernel bugcheck, commonly called a blue screen crash. It decodes the bugcheck code and parameters and recovers the processor context needed to examine the actual failure.

In plain words
What is it for?
Use it to inspect kernel crash dumps or authorized live kernel sessions, check symbols and fault context, and investigate the relevant driver or operating-system failure.
Why use it?
It reduces the risk of diagnosing a kernel failure from a filename, visible symptom, or module name alone. It also distinguishes a real kernel dump from a process dump captured later, which may not contain the original fault.

Skill for Claude Code ✓ vendor

Written for Claude Code: shipped in a Claude Code plugin.

Part of the windbg plugin — 11 skills, 2 agents shipped together

Good fit Use it to inspect kernel crash dumps or authorized live kernel sessions, check symbols and fault context, and investigate the relevant driver or operating-system failure.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/microsoft/win-dev-skills/windbg-kernel-bugcheck-triage
About the project

microsoft/win-dev-skills is a collection of AI-agent instructions and tools for creating native Windows applications with WinUI 3 and the Windows App SDK. Windows developers use it to guide agents through app development tasks from scaffolding and design to testing, packaging, and release. The catalogue entries are its agents, skills, and plugin components.

microsoft/win-dev-skills · 472 stars · on GitHub

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 microsoft/win-dev-skills --skill windbg-kernel-bugcheck-triage
Clone the repo
git clone --depth 1 https://github.com/microsoft/win-dev-skills

Made for: Claude Code.

Or install windbg, the plugin that ships this one along with the rest of its 11 skills, 2 agents.

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 windbg-kernel-bugcheck-triage

README.md
[![agentmods](https://agentmods.dev/badge/skills/microsoft/win-dev-skills/windbg-kernel-bugcheck-triage/github.svg)](https://agentmods.dev/skills/microsoft/win-dev-skills/windbg-kernel-bugcheck-triage)
Your own site
<a href="https://agentmods.dev/skills/microsoft/win-dev-skills/windbg-kernel-bugcheck-triage"><img src="https://agentmods.dev/badge/skills/microsoft/win-dev-skills/windbg-kernel-bugcheck-triage/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.

agentmods 80×15 button for windbg-kernel-bugcheck-triage

Your own site · 80×15
<a href="https://agentmods.dev/skills/microsoft/win-dev-skills/windbg-kernel-bugcheck-triage"><img src="https://agentmods.dev/badge/skills/microsoft/win-dev-skills/windbg-kernel-bugcheck-triage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,245 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 original 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.01245
Opus 5.5 $0.00020 $0.00498
Sonnet 5.5 $0.00010 $0.00249
Haiku 4.5 $0.00005 $0.00125

Measured 8d ago against content hash 1e5a54f46e73, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

windbg-kernel-bugcheck-triage 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 8d 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.

plugins/windbg/skills/windbg-kernel-bugcheck-triage/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kernel Bugcheck Triage

Load windbg-diagnostic-method first if it is not already loaded in this conversation, and apply it throughout for evidence ranking, hypothesis testing, confidence calibration, independent review, and report validation. This skill adds the bug-family-specific commands and evidence requirements.

Scope

Use a kernel crash dump or authorized live kernel session. A process dump captured after a reboot does not contain the earlier kernel fault. Confirm the dump type with the debugger, not a filename or the user's visible symptom. This skill includes exception-context and trap-frame recovery.

Workflow

1. Establish symbols and bugcheck evidence

.symfix
.sympath+ <your-vendor-symbol-directory>
.reload
!analyze -v
.bugcheck
k

Replace the placeholder with the approved symbol location for your own binaries. Record dump type, target architecture/build, bugcheck code and parameters, faulting instruction, and available memory. Public Windows symbols suffice for many investigations; do not require private Windows source or PDBs.

2. Decode parameters for the specific code

Code Parameter meaning / next step
0x1E P1 exception code; P2 exception address; P3/P4 exception-specific information. These are not generically a CONTEXT pair.
0x7E P1 exception code; P2 exception address; P3 EXCEPTION_RECORD; P4 CONTEXT.
0x3B P1 exception code; P2 instruction address; P3 CONTEXT; P4 unused.
0x0A / 0xD1 Referenced address, IRQL, access information, instruction address. Decode the access field for that code; these parameters are not generally a trap-frame pointer.
0x50 Invalid memory reference; parameter interpretation varies with target version. Consult the code reference.
0x9F P1 selects the power-failure subtype; use its specific parameter table and windbg-kernel-irp-lifecycle-triage where applicable.
Verifier-class stop Use windbg-kernel-verifier-triage and the exact code/subcode definition.

Read the full file on GitHub · 130 lines

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. 8d ago First seen · 130 lines · 50 tokens per session scan A 1e5a54f46e73

Subscribe to this mod's changes

windbg-kernel-bugcheck-triage is a skill published in the GitHub repository microsoft/win-dev-skills (472 stars, last pushed 2d ago), licensed MIT. It adds 50 tokens to every session and 1,245 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-08.

Related

Other skills, from other repositories

component-flattening-analysis

Detects misplaced classes and fixes component hierarchy problems — finds code that should belong inside a component but sits at the root level. Use when asking "clean up component structure", "find orphaned classes", "fix module hierarchy", "flatten nested components", or analyzing why namespaces have misplaced code.…

tech-leads-club/agent-skills · 86 tokens

codenavi

Your pathfinder for navigating unknown codebases. Investigates with precision, implements surgically, and never assumes — if it doesn't know, it says so. Maintains a .notebook/ knowledge base that grows across sessions, turning every discovery into lasting intelligence. Summons available skills, MCPs, and docs when…

tech-leads-club/agent-skills · 139 tokens

chrome-devtools

Browser debugging, performance profiling, and automation via Chrome DevTools MCP. Use when user says "debug this page", "take a screenshot", "check network requests", "profile performance", "inspect console errors", or "analyze page load". Do NOT use for full E2E test suites (use playwright-skill) or non-browser…

tech-leads-club/agent-skills · 74 tokens

sentry

Inspect Sentry issues, summarize production errors, and pull health data via the Sentry API (read-only). Use when user says "check Sentry", "what errors in production?", "summarize Sentry issues", "recent crashes", or "production error report". Requires SENTRYAUTHTOKEN. Do NOT use for setting up Sentry SDK…

tech-leads-club/agent-skills · 84 tokens

chrome-devtools-mcp

Use Chrome DevTools MCP from .NET agents and .NET-focused repos to inspect, debug, and automate Chrome through an MCP client. USE FOR: the repo needs browser-level debugging for ASP.NET Core, Blazor, WebAssembly, or any .NET app with a web UI; the user wants an MCP server that can inspect console. DO NOT USE FOR: pure…

managedcode/dotnet-skills · 130 tokens

managedcode-orleans-graph

Integrate ManagedCode.Orleans.Graph into an Orleans-based .NET application for grain-call policy enforcement, deadlock detection, live-call telemetry, and Mermaid graph diagnostics. USE FOR: ManagedCode.Orleans.Graph integration; allowed grain transitions; Orleans call filters; live policy graphs; reviewing Orleans…

managedcode/dotnet-skills · 114 tokens