BC k8s-ops
Kubernetes operations plugin — 32 tools for cluster management, monitoring, troubleshooting, and security auditing
As a process C 58/100 · Has gaps — weak spots: result and completion, when it triggers, failures and branches
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 instructions or scripts send data out: environment variables, keys, file contents, chat history. You may never notice, because the agent performs the upload as "part of the task".
If the upload is not needed for the task, remove it: catalogs flag such skills and delist them. If it is needed, name the destination explicitly, say what leaves the machine, and give the user a switch.
How to improve
- Say in the description WHEN to use the skill ("use when…", example requests): that is the agent's main cue.
- 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 · 5
✓ No critical or high findings
Medium and low: 5
-
medium Exfiltration
exfil-read-secret-filesguides/01-installation.md:71Reads credential / secret files (documentation of a security skill)cp /path/to/your/kubeconfig ~/.kube/config
security skill -
medium Exfiltration
exfil-read-secret-filestroubleshooting.md:37Reads credential / secret files (documentation of a security skill)cp /path/to/your/kubeconfig ~/.kube/config
security skill -
low Dangerous commands
cmd-privilegeguides/01-installation.md:20Privilege escalation / world-writable permissions (documentation of a security skill)sudo mv kubectl /usr/local/bin/
security skill -
low Dangerous commands
cmd-privilegeguides/01-installation.md:29Privilege escalation / world-writable permissions (documentation of a security skill)sudo mv kubectl /usr/local/bin/
security skill -
low Dangerous commands
cmd-privilegetroubleshooting.md:17Privilege escalation / world-writable permissions (documentation of a security skill)sudo mv kubectl /usr/local/bin/
security skill
Files scanned: 13. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
description-no-whendescription does not say WHEN to use the skill (no "use when")
Process rating: all ten parameters 58/100
- 0Result and completion. Does not say what the result is
- 0Failures and branches. Linear process with no failure handling
- 0Progress reporting. Says nothing while it works
- 20When it triggers. No condition that starts the skill
- 30Running it twice. 1 mutating operations with no state check
- 70Inputs and preconditions. Inputs and preconditions are listed
- 100Tools and files. No external tools needed
- 100Steps. 20 steps
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 437 tokens
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)
- +3Description length 114: 120–800 characters recommended
- +3Output format is not stated: the model decides each time
- +4No input/output examples
- +1No license
- +2Single-language instructions
- +4Structure: 6 headings
- +3Step-by-step instructions: 20 items
Quality base 70; lint remarks subtract, signals add up to 100. Result: 65.