Bug: caveman-compress.md missing from opencode plugin — install always fails

[Mikuller]

Bug: caveman-compress.md missing from opencode plugin — install always fails

Description

When installing the caveman skill for opencode, the installer fails with an ENOENT error because caveman-compress.md does not exist in the published package under src/plugins/opencode/commands/.

The file is referenced and expected by the installer, but it was never committed to the repo or included in the npm package.

Steps to Reproduce

1. Run the caveman installer:

   irm https://raw.githubusercontent.com/JuliusBrussee/caveman/main/install.ps1 -OutFile install.ps1; .\install.ps1

2. Select option 2 (opencode)
3. Installer fails at the final copy step

Error

opencode install failed: ENOENT: no such file or directory, copyfile
'...\caveman-installer\src\plugins\opencode\commands\caveman-compress.md'
-> 'C:\Users\<user>\AppData\Roaming\opencode\commands\caveman-compress.md'

Verification

Inspecting the cached npm package confirms the file is absent:

Get-ChildItem "$env:LOCALAPPDATA\npm-cache\_npx\...\node_modules\caveman-installer\src\plugins\opencode\commands\"

caveman-compress.md is not listed. All other .md command files are present.

Environment

• OS: Windows 11
• Shell: PowerShell
• Agent: opencode

Expected Behavior

caveman-compress.md should exist in src/plugins/opencode/commands/ so the installer can copy it successfully.

Workaround

Manually create the missing file at the destination:

New-Item -ItemType File -Force -Path "$env:APPDATA\opencode\commands\caveman-compress.md"

This allows the rest of the installation to function normally.

[erdigokce]

Also valid for opencode on MacOS.

[NdR91]

Yes, same issue here on MacOS

[ivolkoff]

Cross-platform confirmation — same bug reproduces on macOS via npx caveman-installer (no PowerShell, no install.ps1), which rules out OS-specific packaging and points squarely at the published npm artifact being incomplete.

opencode — ENOENT: no such file or directory, copyfile
'/Users/<user>/.npm/_npx/<hash>/node_modules/caveman-installer/src/plugins/opencode/commands/caveman-compress.md'
-> '/Users/<user>/.config/opencode/commands/caveman-compress.md'

ls on the cached package on macOS matches your Windows finding exactly:

caveman-commit.md
caveman-help.md
caveman-review.md
caveman-stats.md
caveman.md

No caveman-compress.md. Same caveman-installer@0.1.0.

Also seeing the same partial-install side effect: after the abort the target dir has caveman-commit/compress(stub)/review/caveman.md but caveman-help.md and caveman-stats.md never get copied — the installer bails before reaching them. So beyond shipping the missing file, the copy step should probably continue past missing sources and report skipped files at the end.

The empty-file workaround works on macOS too:

touch ~/.config/opencode/commands/caveman-compress.md
# rerun installer

Linking #367 since these are the same root cause.

[juanla]

Hello!
I can confirm that same problem happens in Linux (Archlinux)

npx -y github:JuliusBrussee/caveman -- --only opencode 
🪨 caveman installer
  JuliusBrussee/caveman

→ opencode detected
  skipped /home/userops/.config/opencode/plugins/caveman/plugin.js (exists; --force to overwrite)
  skipped /home/userops/.config/opencode/plugins/caveman/package.json (exists; --force to overwrite)
  skipped /home/userops/.config/opencode/plugins/caveman/caveman-config.cjs (exists; --force to overwrite)
  installed: /home/userops/.config/opencode/plugins/caveman
  skipped /home/userops/.config/opencode/commands/caveman.md (exists; --force to overwrite)
  skipped /home/userops/.config/opencode/commands/caveman-commit.md (exists; --force to overwrite)
  skipped /home/userops/.config/opencode/commands/caveman-review.md (exists; --force to overwrite)
  opencode install failed: ENOENT: no such file or directory, copyfile '/home/userops/.npm/_npx/1915db09411464bc/node_modules/caveman-installer/src/plugins/opencode/commands/caveman-compress.md' -> '/home/userops/.config/opencode/commands/caveman-compress.md'


🪨 done
  failed:
    • opencode — ENOENT: no such file or directory, copyfile '/home/userops/.npm/_npx/1915db09411464bc/node_modules/caveman-installer/src/plugins/opencode/commands/caveman-compress.md' -> '/home/userops/.config/opencode/commands/caveman-compress.md'

  start any session and say 'caveman mode', or run /caveman in Claude Code
  uninstall: npx -y github:JuliusBrussee/caveman -- --uninstall

[MarkEwer]

me have same problem - win11pro, opencode

no such file or directory, copyfile 'D:\GitHub\caveman\src\plugins\opencode\commands\caveman-compress.md' -> 'C:\Users\Mark\AppData\Roaming\opencode\commands\caveman-compress.md'

'D:\GitHub\caveman\src\plugins\opencode\commands\caveman-compress.md' no there.
other files there.

[alaa-alghazouli]

I've submitted a PR that fixes this! It addresses the missing caveman-compress.md file, corrects the tools schema for OpenCode agents, and fixes the broken standalone caveman-shrink MCP registration.

PR: #452

[MarkEwer]

I pulled your PR and tried it locally. Seems to work!

[monarcode]

Having the same issue, i hope this gets fixed soon