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Guide for migrating MSBuild tasks to multithreaded mode support, including compatibility red-team review. Use this when converting tasks to thread-safe versions, implementing IMultiThreadableTask, adding TaskEnvironment support, or auditing migrations for behavioral compatibility.
Claude Skills are markdown + scripts loaded into Claude Code; scanned with the same pipeline.
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
2 critical findings reported by agent-audit-kit, 1 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
Claude Skills install to a single target, no runtime picker.
nerlo install -- 'dotnet/msbuild (multithreaded-task-migration)'
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- 'dotnet/msbuild (multithreaded-task-migration)' ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
4 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v2.0.11
209 findings · 54.2s
v0.3.74
16 findings · 17.9s
v0.1.0
0 findings · 8.5s
v0.1.0
17 findings · 8.5s
v1.4.0
None of the entry points this scanner reads were found in this artifact. What each scanner covers
0 findings · 0.2s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 0.9s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 21, 2026 | Scan Halted | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicable | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 242 findings across every scanner that examined this package. 1 of 2 findings rated critical by their scanner was among the dismissals.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
73 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: AAK-HEALTHCARE-AI-004, LAZY_LOAD_DEEP_NESTING, SOCIAL_ENG_VAGUE_DESCRIPTION and 4 more · Files: .github/workflows/flaky-test-fixer.agent.md, .github/agents/expert-reviewer.agent.md, documentation/aot/sdk-msbuild-object-model-audit.md and 40 more · reported by agent-audit-kit, cisco-skill-scanner, nerlo-install-instruction
28 CI or editor configuration — The match is in build, CI or editor configuration, confirmed by our own check to be outside the installed artifact.
Rules: AAK-SKILL-001, AAK-MARKETPLACE-001, AAK-OAUTH-007 and 3 more · Files: .github/skills/pipelines-health-check/SKILL.md, .github/plugin/marketplace.json, .github/workflows/close-stale-prs.agent.lock.yml and 13 more · reported by agent-audit-kit, cisco-skill-scanner
2 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: TOOL_ABUSE_UNDECLARED_NETWORK · Files: /repo/repo/AGENTS.md, /repo/eng/common/repo/eng/common/AGENTS.md · reported by cisco-skill-scanner
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
25 MANIFEST_MISSING_LICENSE
Files: /repo/plugins/mt-migration/skills/multithreaded-task-migration/SKILL.md, /repo/SKILL.md, /repo/branding/SKILL.md and 22 more · reported by cisco-skill-scanner
24 FILE_MAGIC_MISMATCH
Files: /repo/src/Build.UnitTests/Snapshots/TerminalLogger_Tests.DisplayNodesOverwritesWithNewTargetFramework.OSX.verified.txt, /repo/src/Build.UnitTests/Snapshots/NodeStatus_Transition_Tests.NodeTargetUpdatesTime.verified.txt, /repo/src/Build.UnitTests/Snapshots/TerminalLogger_Tests.LogEvaluationErrorFromEngine.OSX.verified.txt and 21 more · reported by cisco-skill-scanner
23 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/branding/SKILL.md, /repo/template_feed/SKILL.md and 20 more · reported by cisco-skill-scanner
17 HIDDEN_DATA_FILE
Files: /repo/.config/git-merge-flow-config.jsonc, /repo/template_feed/content/Microsoft.CheckTemplate/.template.config/template.json, /repo/src/BuildCheck.UnitTests/TestAssets/SampleCheckIntegrationTest/.editorconfigtest and 12 more · reported by cisco-skill-scanner
17 MANIFEST_INVALID_NAME
Critical SQL RCE, credential exposure, and shell execution capabilities.
The artifact includes code with a critical SQL Remote Code Execution vulnerability in `eng/common/cross/install-debs.py`. It also contains exposed secrets in `eng/common/SetupNugetSources.sh` and `src/Tasks.UnitTests/TestResources/mycert.pfx`, which could lead to credential access. Furthermore, the artifact has patterns indicative of shell execution in `/repo/eng/common/cross/build-rootfs.sh`. There are also indications of network requests that could facilitate data exfiltration.
Concern level assessed by the review: Critical. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.
Files: /repo/src/MSBuild/SKILL.md, /repo/src/BuildCheck.UnitTests/TestAssets/CustomCheck2/SKILL.md, /repo/src/MSBuildTaskHost/SKILL.md and 14 more · reported by cisco-skill-scanner
7 BINARY_FILE_DETECTED
Files: /repo/src/Tasks.UnitTests/AssemblyDependency/CacheFileSamples/Microsoft.VisualStudio.LanguageServices.Implementation.csprojAssemblyReference.cache, /repo/src/MSFT.snk, /repo/src/Tasks.UnitTests/TestResources/mycert.pfx and 3 more · reported by cisco-skill-scanner
7 UNANALYZABLE_BINARY
Files: /repo/branding/MSBuild-Logo.ai, /repo/src/Tasks.UnitTests/AssemblyDependency/CacheFileSamples/Microsoft.VisualStudio.LanguageServices.Implementation.csprojAssemblyReference.cache, /repo/src/Test.snk and 3 more · reported by cisco-skill-scanner
5 EXCESSIVE_FILE_COUNT
Files: /repo/., /repo/src/Framework/., /repo/src/Tasks/. and 2 more · reported by cisco-skill-scanner
4 DATA_EXFIL_NETWORK_REQUESTS
Files: /repo/eng/common/cross/install-debs.py · reported by cisco-skill-scanner
4 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/README.md, /repo/scripts/cts/README.md · reported by nerlo-install-instruction
2 FIND_EXEC_PATTERN
Files: /repo/eng/common/cross/build-rootfs.sh · reported by cisco-skill-scanner
1 AAK-LLM-SQL-RCE-001
Files: eng/common/cross/install-debs.py · reported by agent-audit-kit
1 AAK-SECRET-004
Files: eng/common/SetupNugetSources.sh · reported by agent-audit-kit
1 AAK-SECRET-005
Files: src/Tasks.UnitTests/TestResources/mycert.pfx · reported by agent-audit-kit
1 LOW_ANALYZABILITY
Files: /repo/branding · reported by cisco-skill-scanner