Upstream PR materials — `everything-claude-code` mcp-health-check.js Windows .cmd shim fix

This directory bundles the patch + context for the upstream PR against everything-claude-code (the Claude Code plugin marketplace). The fix is currently shipped as a postinstall override by @waggle/hive-mind-cli (see packages/hive-mind-cli/postinstall.js); once upstream merges the PR, the override can be retired.

Per feedback_memory_install_dead_simple binding rule (mirror at D:/Projects/PM-Waggle-OS/memory-mirror/feedback_memory_install_dead_simple.md), the override is the PRIMARY path — Solo $19/mo Waggle launch does NOT wait on upstream merge timing. The upstream PR proceeds in parallel as good-citizen contribution.

The bug

scripts/hooks/mcp-health-check.js::probeCommandServer calls child_process.spawn(command, args, { ... }) without shell: true. On Windows, this means npm-installed CLI shims (.cmd / .bat wrappers, e.g., hive-mind-cli) fail with spawn <name> ENOENT because Windows requires cmd.exe to resolve them.

The hook then marks the MCP server unhealthy, quarantines it for the entire backoff window (30s → 10min, doubling each retry), and blocks every subsequent MCP tool call until the quarantine expires.

This is a zero-engagement failure mode for any Claude Code user with an npm-installed MCP server CLI on Windows — hive-mind-cli, npx-launched chrome-devtools, etc.

The fix

Set shell: true and windowsHide: true on spawnOptions when process.platform === 'win32'. POSIX behavior is preserved (Linux + macOS handle shebangs natively without shell: true).

Files in this directory

0001-fix-resolve-windows-cmd-shims.patch — git format-patch output of commit cf6e6c5d on the everything-claude-code marketplace clone. Apply upstream with git am 0001-fix-resolve-windows-cmd-shims.patch.

How to submit

CC does NOT push the upstream PR — Marko handles the GitHub interaction directly. To submit:

Fork everything-claude-code on GitHub if not already forked.
Clone the fork locally: git clone https://github.com/<your-fork>/everything-claude-code.git
Apply the patch: git am 0001-fix-resolve-windows-cmd-shims.patch
Push: git push origin main (or a feature branch).

Open PR against Affaan-Mustafa/everything-claude-code with title:

fix(mcp-health-check): resolve Windows .cmd shims in probeCommandServer

Reference issue search before opening — check upstream issue tracker for ENOENT / Windows / spawn reports and link them in the PR body.

Verification (already done locally on Marko's machine 2026-04-29)

mcp__hive-mind__get_identity returned clean RPC, no ENOENT
mcp__hive-mind__save_memory → frame ID 23 persisted at 2026-04-29 11:27:42
mcp__hive-mind__recall_memory → returned frame 23 with the probe content intact
chrome-devtools MCP server (npx-launched) also recovered (same bug class)

License

The patch is MIT (matches upstream everything-claude-code LICENSE — original by Affaan Mustafa, modified by Marko Markovic at Egzakta Group d.o.o. per commit cf6e6c5d on the marketplace clone). MIT and Apache 2.0 are bidirectionally compatible for distribution; the @waggle/hive-mind-cli postinstall bundles the patched hook with the upstream MIT notice preserved.

packages/hive-mind-cli/postinstall.js — postinstall script that drops the override
packages/hive-mind-cli/assets/mcp-health-check-fixed.js — bundled patched hook (MIT)
packages/hive-mind-cli/docs/WINDOWS-QUIRKS.md — user-facing Windows install notes
Wave 1 cleanup brief: D:/Projects/PM-Waggle-OS/briefs/2026-04-29-wave1-hooks-cleanup-brief.md

README.md

Upstream PR materials — everything-claude-code mcp-health-check.js Windows .cmd shim fix