User report: clicking 'Install all' on the reverse-engineering plugin's
missing-prereq modal showed cascading 'X command not found' errors even
after winget reported success — root cause was that the running terminal's
PATH never refreshed, so the next probe / install command couldn't see the
newly-installed binary. Compounded by the fact that the user's host had
neither winget nor scoop, and the deduped prereq row only carried the
first-encountered server's install map, dropping the powershell 'irm | iex'
fallback that ghidra's manifest declared.
Two coordinated fixes:
1. Server: pluginService.checkPluginPrerequisites now MERGES install maps
across all servers declaring the same command (deduped by manager+cmd).
So uvx now surfaces winget + scoop + powershell-irm together in the
modal, not just the first server's two-step list.
2. Desktop: new smartInstallScript helper builds ONE base64-encoded
PowerShell wrapper that:
- Probes each missing command BEFORE running its installer (idempotent
re-clicks, partial state)
- For each install option in declared order, first checks whether the
manager itself is on PATH; if not, skips the option silently with a
yellow 'manager not on PATH' note instead of letting the user see
'winget: command not found'
- After each install attempt, reloads PATH from machine + user
registry into the running PowerShell process — fixes the root issue
- Auto-appends winget non-interactive flags so the install doesn't
hang on license confirmation
- Walks all install options until one produces the binary on PATH
- Prints a colored summary (already-installed / installed-via-X / failed)
On Windows, the modal switches to this single-encoded-command path.
On macOS/Linux it keeps the existing per-command injection (POSIX shells
respect PATH updates from install scripts themselves, no equivalent
issue).
End-to-end exerciser: scripts/test-mcp-install.ps1 fetches a plugin's
live prereq state from the local API server, prints the smart-install
plan with manager-availability annotations, and (with -Run) executes
the wrapper for real, then re-fetches to verify post-install state.
Tested:
- bun test src/server/services/pluginService.test.ts: 5/5 (mergeInstallMap)
- bun test desktop/src/lib/smartInstallScript.test.ts: 11/11
- Live dry-run via test-mcp-install.ps1 against reverse-engineering
plugin: shows winget+scoop+powershell-irm fallback chain for uvx as
expected (merged from ghidra + lldb + jadx + apktool + frida)
- Desktop tsc --noEmit clean
Confidence: high. Scope-risk: narrow.
Tested: scripts/test-mcp-install.ps1 -Plugin reverse-engineering (dry run)
Not-tested: -Run path against a fresh VM (the install commands themselves
are unchanged data; only the wrapper logic changed).
Co-authored-by: 你的姓名 <you@example.com>
