AB mac-multi-user-agents
Configure a powerful macOS machine to host multiple dedicated OpenClaw agent users with Fast User Switching, a shared Homebrew toolchain, per-user OpenClaw homes, per-user SSH trust, and auditable rollback. Use when you want a MacBook Pro or similar Mac to run several agent users at the same time without improvising the user layout each time.
As a process B 67/100 · Nearly there — weak spots: result and completion, running it twice
What is at stake
Medium-severity findings: the skill is probably honest, but read what alarmed the scanner.
Below is the worst case for this category. The finding here is medium: the guard saw a sign, not a proof.
The skill contains commands that delete files, rewrite disks or execute code fetched from the network. The agent may run them without asking if it believes the instructions require it.
Replace destructive commands with safe equivalents that ask for confirmation, scope them to one folder, and stop piping curl into a shell: pin a version and a checksum.
How to improve
- Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
- A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.
Guard findings · 3
✓ No critical or high findings
Medium and low: 3
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medium Dangerous commands
cmd-shell-rcscripts/create-user.sh:56Writes to a shell startup fileecho "sudo -u \"$USER_NAME\" /bin/zsh -lc 'grep -q /opt/homebrew/bin ~/.zprofile 2>/dev/null || printf \"\\nexport PATH=/opt/homebrew/bin:/opt/homebrew/sbin:\\$PATH\\n\" >> ~/.zprofile'"
-
low Dangerous commands
cmd-shell-rcscripts/create-user.sh:68Writes to a shell startup file (detector / deny-list definition; string literal in code, not executed)sudo -u "$USER_NAME" /bin/zsh -lc 'grep -q /opt/homebrew/bin ~/.zprofile 2>/dev/null || printf "\nexport PATH=/opt/homebrew/bin:/opt/homebrew/sbin:\$PATH\n" >> ~/.zprofile'
detectorcode literal -
low Dangerous commands
cmd-shell-rcscripts/render-user-create.sh:43Writes to a shell startup file (detector / deny-list definition; string literal in code, not executed)sudo -u "$USER_NAME" /bin/zsh -lc 'grep -q /opt/homebrew/bin ~/.zprofile 2>/dev/null || printf "\\nexport PATH=/opt/homebrew/bin:/opt/homebrew/sbin:\\$PATH\\n" >> ~/.zprofile'
detectorcode literal
Files scanned: 11. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
✓ No remarks against the Agent Skills spec
Process rating: all ten parameters 67/100
- 0Result and completion. Does not say what the result is
- 30Running it twice. 12 mutating operations with no state check
- 50When it triggers. No condition that starts the skill
- 60Tools and files. Uses tools (bash) that frontmatter does not declare
- 70Inputs and preconditions. Inputs and preconditions are listed
- 100Steps. 58 steps
- 100Failures and branches. 2 branches, has a failure section
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 1261 tokens
- 100Progress reporting. Reports progress
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.
Quality signals
- +5Description has no quoted example phrases that should trigger the skill
- +4Description does not say when NOT to use the skill (false activations)
- +3Output format is not stated: the model decides each time
- +1No license
- +2Single-language instructions
- +3Description length 344: enough signal without eating the budget
- +4Structure: 15 headings
- +3Step-by-step instructions: 58 items
- +4Has examples (6 code blocks)
- +4Reference files are cited in the instructions (2 of 2)
- +3All 6 scripts are documented
Quality base 70; lint remarks subtract, signals add up to 100. Result: 91.