Windows PowerShell 5.1 skill for downloading large GitHub release assets: it first read-only probes the host (listening local proxy ports, system proxy and env vars, an installed Clash Verge core and its config, curl version), measures KB/s of four routes in parallel (existing proxy, headless-spawned core, public mirrors, direct), runs a short time-boxed concurrency ladder on the winner, then downloads the asset in parallel curl byte ranges and verifies the byte count plus SHA256 against the release digest. Skips the ladder when the asset is under 100 MB or a single connection already reaches 3 MB/s, because concurrency only pays off when a single connection is throttled: measured 6.3x on a throttled node (1,234 to 7,759 KB/s) but 0.72x on a fast one (5,829 vs 4,175 KB/s). Needs no aria2 or 7z, never changes the system proxy, never asks the user for ports or concurrency, reports ASSET_NOT_FOUND with the real candidate names instead of silently picking a different file, and degrades to a size-only check with DOWNLOAD_SIZE_OK_NO_DIGEST when a release predates digests.
Install
# from GitHub (first run asks for allowBuilds approval — follow the hint, retry)
dsh plugin --profile web add github:chenjrastro-tech/github-release-download-acceleration
Any plugin you install runs third-party code with your own permissions — it can read your files, use your credentials, and reach the network, and tool approvals don’t sandbox it. GitHub-sourced plugins also run build scripts at install time — pnpm blocks those until you allow them, so an install can stop with ERR_PNPM_GIT_DEP_PREPARE_NOT_ALLOWED or ERR_PNPM_IGNORED_BUILDS; dsh prints the exact key to add under allowBuilds in your profile’s pnpm-workspace.yaml, and the install works on the next run. Allowing a build is a trust decision: only install sources you trust, and pin a commit (github:owner/repo#sha).
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