BF crane-hook-annotation
Detect and tightly annotate tower-crane hook outlines in similar construction-site monitoring images. Use when Codex needs to batch-process `.png`, `.jpg`, or `.jpeg` images from a stable camera view, locate the hook from bright metal pixels inside a known search region, export annotated copies, and produce reusable coordinates or polygon metadata for follow-up QA.
As a process F 47/100 · Will not run — References files that are not bundled: scripts/annotate-crane-hooks.ps1
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
- The text references files that are not there: add them or drop the references.
- 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 · 2
✓ No critical or high findings
Medium and low: 2
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medium Dangerous commands
cmd-execpolicy-bypassSKILL.md:23Runs PowerShell with execution policy bypassedpowershell -ExecutionPolicy Bypass -File .\skills\crane-hook-annotation\scripts\anno…ps1 `
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medium Dangerous commands
cmd-execpolicy-bypassSKILL.md:32Runs PowerShell with execution policy bypassedpowershell -ExecutionPolicy Bypass -File .\skills\crane-hook-annotation\scripts\anno…ps1 `
Files scanned: 5. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
missing-refreference to a missing file: scripts/annotate-crane-hooks.ps1
Process rating: all ten parameters 47/100
- 0Tools and files. 1 referenced file(s) missing: scripts/annotate-crane-hooks.ps1
- 0Result and completion. Does not say what the result is
- 0Inputs and preconditions. Does not say what the process needs to start
- 0Progress reporting. Says nothing while it works
- 55Failures and branches. 1 branches
- 70When it triggers. States when to use, but not when not to
- 100Steps. 20 steps
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 503 tokens
- 100Running it twice. No mutating operations
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 367: enough signal without eating the budget
- +4Structure: 6 headings
- +3Step-by-step instructions: 20 items
- +4Has examples (2 code blocks)
- +4Reference files are cited in the instructions (1 of 1)
Quality base 70; lint remarks subtract, signals add up to 100. Result: 82.