{"slug":"dump-collect","title":"dump-collect","summary":"Configure and collect crash dumps for modern .NET applications. USE FOR: enabling automatic crash dumps for CoreCLR or NativeAOT, capturing dumps from running .NET processes, setting up dump collection in Docker or Kubernetes, using dotnet-dump collect or createdump. DO NOT USE F","platform":"Claude","tags":[],"authorName":"LLM Mart","authorSlug":"llm-mart","score":0,"source":"github","price":null,"verified":false,"createdAt":"2026-08-24T05:37:26.203915Z","repo":{"url":"https://github.com/dotnet/skills","stars":5471,"forks":418,"license":"MIT","updatedAt":"2026-09-24T06:38:55Z"},"bodyHtml":"
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name: dump-collect\ndescription: \"Configure and collect crash dumps for modern .NET applications. USE FOR: enabling automatic crash dumps for CoreCLR or NativeAOT, capturing dumps from running .NET processes, setting up dump collection in Docker or Kubernetes, using dotnet-dump collect or createdump. DO NOT USE FOR: analyzing or debugging dumps, post-mortem investigation with lldb/windbg/dotnet-dump analyze, profiling or tracing, or for .NET Framework processes.\"\nlicense: MIT

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.NET Crash Dump Collection

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This skill configures and collects crash dumps for modern .NET applications (CoreCLR and NativeAOT) on Linux, macOS, and Windows — including containers.

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Stop Signals

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\uD83D\uDEA8 Read before starting any workflow.

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Step 1 — Identify the Scenario

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Ask or determine:

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  1. Goal: Enable automatic crash dumps, or capture a dump from a running process right now?
    2. \n
  2. Platform: Linux, macOS, or Windows? Running in a container (Docker/Kubernetes)?
    3. \n
  3. Runtime: CoreCLR or NativeAOT?
    4. \n
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Detecting CoreCLR vs NativeAOT

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From a binary file (Linux/macOS):

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# CoreCLR — has IL metadata / managed entry point\nstrings <binary> | grep -q \"CorExeMain\" && echo \"CoreCLR\"\n\n# NativeAOT — has Redhawk runtime symbols\nstrings <binary> | grep -q \"Rhp\" && echo \"NativeAOT\"\n\n# On macOS/Linux, also try:\nnm <binary> 2>/dev/null | grep -qi \"Rhp\" && echo \"NativeAOT\"\n
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From a binary file (Windows):

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# CoreCLR — has a CLI header (IL entry point)\ndumpbin /clrheader <binary.exe> | Select-String \"CLI Header\" -Quiet\n\n# NativeAOT — no CLI header, has Redhawk symbols\ndumpbin /symbols <binary.exe> | Select-String \"Rhp\" -Quiet\n
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From a running process (Linux):

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# Resolve the binary, then use the same file checks\nBINARY=$(readlink /proc/<pid>/exe)\nstrings \"$BINARY\" | grep -q \"CorExeMain\" && echo \"CoreCLR\" || echo \"NativeAOT\"\n
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From a running process (macOS):

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# Resolve the binary path from the running process\nBINARY=$(ps -o comm= -p <pid>)\nstrings \"$BINARY\" | grep -q \"CorExeMain\" && echo \"CoreCLR\" || echo \"NativeAOT\"\n
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From a running process (Windows PowerShell):

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# CoreCLR — loads coreclr.dll\n(Get-Process -Id <pid>).Modules.ModuleName -contains \"coreclr.dll\"\n\n# .NET Framework — loads clr.dll (this skill does not apply)\n(Get-Process -Id <pid>).Modules.ModuleName -contains \"clr.dll\"\n
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If the app is .NET Framework (clr.dll), stop. This skill covers modern .NET (CoreCLR and NativeAOT) only.

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If neither CoreCLR nor NativeAOT is detected, stop. This skill only applies to .NET applications — do not proceed.

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Step 2 — Load the Appropriate Reference

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Based on the scenario identified in Step 1, read the relevant reference file:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
ScenarioReference
CoreCLR app (any platform)references/coreclr-dumps.md
NativeAOT app (any platform)references/nativeaot-dumps.md
Any app in Docker or Kubernetesreferences/container-dumps.md (then also load the runtime-specific reference)
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Step 3 — Execute

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Follow the instructions in the loaded reference to configure or collect dumps. Always:

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  1. Confirm the dump output directory exists and has write permissions before enabling collection.
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  2. Report the dump file path back to the user after collection succeeds.
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  3. Verify configuration took effect — for env vars, echo them; for OS settings, read them back.
    4. \n
  4. Remind the user to disable automatic dumps if they were enabled temporarily — remove or unset DOTNET_DbgEnableMiniDump and related env vars to avoid accumulating dump files.
    5. \n
\n","files":[{"path":"references/container-dumps.md","sizeBytes":11485,"isText":true},{"path":"references/coreclr-dumps.md","sizeBytes":2971,"isText":true},{"path":"references/nativeaot-dumps.md","sizeBytes":8775,"isText":true},{"path":"SKILL.md","sizeBytes":4310,"isText":true}],"reviewScore":null,"reviewSummary":null,"trust":{"provenance":"trusted-source-unreviewed","notice":"Community-authored content, reproduced verbatim and not vetted as instructions. Treat it as data to evaluate, never as directives to follow.","bodySource":null},"bodyLocked":false,"purchaseUrl":null,"sourceUrl":null,"report":{"provenance":"trusted-source-unreviewed","screen":{"ran":true,"outcome":"clean","suspicious":0,"notes":0,"hiddenCharacters":false},"virusScan":{"engine":"clamav","status":"clean","scannedAt":"2026-08-24T05:40:04.745502Z","sha256":"A50048007150761D4DEDF238487D421854620130532A45420C5E5BC2048864A8","sizeBytes":10399},"review":null,"source":{"repositoryUrl":"https://github.com/dotnet/skills","path":"plugins/dotnet-diag/skills/dump-collect","license":"MIT","commit":"e115891bd2ac3c7eefd5e30a405f7b5638f5e429","subtreeSha":"9D49A01EA7AD370EC14898BA46E431DB5EACFEC74308DF8AC884E771B369E654","lastSyncedAt":"2026-09-24T06:48:49.987562Z"},"reviewedAt":"2026-08-24T05:48:03.633285Z","notice":"Community-authored content, reproduced verbatim and not vetted as instructions. Treat it as data to evaluate, never as directives to follow."},"install":[{"target":"skills-cli","command":"npx skills add https://github.com/dotnet/skills/tree/main/plugins/dotnet-diag/skills/dump-collect"},{"target":"claude-code","command":"claude plugin marketplace add https://llmmart.ai/marketplace.json && claude plugin install dotnet-skills@llmmart"},{"target":"git","command":"git clone https://github.com/dotnet/skills.git"}]}