eval-performance

Diagnose measured MSBuild evaluation cost before targets run. USE FOR: evaluation-only repeats under global-property variants, expensive node_modules/.git/bin/obj globs, import depth >20, /pp >10K lines, file-I/O property functions, five-phase evaluation. DO NOT USE FOR: duplicate executions (find-repeated-work-within-one-build), execution bottlenecks (build-perf-diagnostics), incremental rebuilds (incremental-build), non-MSBuild systems.

Jump to install Review files

Repository: dotnet/skills
Last source activity: November 6, 2026 at 17:06
Detected SKILL.md language: English
Stars: 5,955
Forks: 467

Install options

The review-first prompt is selected by default. You can switch to a direct command or download a local copy.

Install with an AI assistant

Copy this prompt into the AI assistant you're using.

Follow https://skillsmp.com/skill-install/prompt.md to install only the Agent Skill at https://github.com/dotnet/skills/tree/main/plugins/dotnet-msbuild/skills/eval-performance.

A direct command skips the review prompt. Inspect the source before running it.

npx skills add https://github.com/dotnet/skills --skill eval-performance

The command stays on one line. Scroll horizontally to inspect it before copying.

Prefer a local copy? Download the files currently available to SkillsMP.

Review the source files

Read SKILL.md and any companion files shown by SkillsMP before deciding whether to install.

SKILL.md

Source instructions · Read-only preview

name

eval-performance

description

Back to search Back to installation

build-parallelism

Analyze MSBuild scheduling across at least two distinct projects in a solution/filter/Build.proj. USE FOR: measured idle workers, -m not scaling, serial ProjectReference critical paths, graph builds, MSBuild Projects-list scheduling. DO NOT USE FOR: duplicate executions or invariant-generation races (find-repeated-work-within-one-build), non-MSBuild systems.

2026-11-06

build-perf-baseline

Establish MSBuild/.NET baselines before optimizing. USE FOR: unranked slow builds; cold/warm/incremental/no-op measurements; before/after comparisons; CI caching; static graph, artifacts output, dependency graph trimming. DO NOT USE FOR: measured bottlenecks (build-perf-diagnostics), known repeated restores (eliminate-redundant-restores), within-build duplicate calls (find-repeated-work-within-one-build), non-MSBuild builds.

2026-11-06

build-perf-diagnostics

Diagnose MSBuild bottlenecks from binlog timelines and Target/Task Performance Summaries after baseline measurements. USE FOR: unknown build slowness, RAR >5s, analyzers >30% of Csc, a target >50% of build, node utilization below 80%, excessive Copy, restore overhead. DO NOT USE FOR: within-build duplicates (find-repeated-work-within-one-build), known repeated restores (eliminate-redundant-restores), initial baselines (build-perf-baseline), incremental rebuilds (incremental-build), parallelism tuning (build-parallelism), non-MSBuild builds.

2026-11-06

View all from this repository

eval-performance

Source facts

Install options

Install with an AI assistant

Review the source files

More from this repository

Install with an AI assistant

More from this repository