BC device-heartbeat
Monitor remote device online status via heartbeat pings to healthchecks.io. Use when user asks to check if a device is online or offline, user reports device unreachable or no response from remote OpenClaw, user wants to set up device monitoring or heartbeat, user asks about network connectivity of their devices, or user says ping my device or is my Mac online.
As a process C 50/100 · Has gaps — weak spots: result and completion, when it triggers, inputs and preconditions
What is at stake
The skill contains fragments that, in the wrong hands, cost money or data. Below: what the installer risks and what the author should do.
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
- Address the high-severity findings: each costs 18 safety points. If one is a false positive, add the rule id to guard.allow in spec.yaml.
- 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
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high Dangerous commands
cmd-persistencescripts/setup.sh:53Persistence mechanism (cron / launchd / scheduled task / autorun registry)launchctl bootstrap "gui/$(id -u)" "$PLIST_PATH"
Medium and low: 2
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medium Dangerous commands
cmd-persistencescripts/setup.sh:10Persistence mechanism (cron / launchd / scheduled task / autorun registry) (string literal in code, not executed)PLIST_PATH="$HOME/Library/LaunchAgents/${LABEL}.plist"code literal -
medium Dangerous commands
cmd-persistencescripts/uninstall.sh:4Persistence mechanism (cron / launchd / scheduled task / autorun registry) (string literal in code, not executed)PLIST_PATH="$HOME/Library/LaunchAgents/${LABEL}.plist"code literal
Files scanned: 8. 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 50/100
- 0Result and completion. Does not say what the result is
- 0Inputs and preconditions. Does not say what the process needs to start
- 20When it triggers. No condition that starts the skill
- 30Running it twice. 4 mutating operations with no state check
- 50Failures and branches. 0 branches, has a failure section
- 60Tools and files. Uses tools (bash, web) that frontmatter does not declare
- 100Steps. 12 steps
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 583 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
- -31 of 5 scripts are never mentioned in SKILL.md
- +1No license
- +2Single-language instructions
- +3Description length 363: enough signal without eating the budget
- +4Structure: 13 headings
- +3Step-by-step instructions: 12 items
- +4Has examples (8 code blocks)
- +4Reference files are cited in the instructions (1 of 1)
Quality base 70; lint remarks subtract, signals add up to 100. Result: 85.