BD Secure Script Runner (Zero‑Exposure Sandbox)
Zero‑exposure script execution using MGC Blackbox. Store scripts encrypted, execute in blackbox, AI sees no plaintext. Supports MCP (mgc_run) / API / WebUI execution, internal credential calls, and script sealing. Includes MGC 1.4.9 temporary workaround guidelines. This skill only executes scripts with explicit user authorization and will never automatically execute any scripts.
Zero‑exposure script execution using MGC Blackbox.
As a process D 44/100 · Unfinished process — weak spots: result and completion, when it triggers, failures and branches
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 · 0
✓ No critical or high findings
Files scanned: 4. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
name-formatname should be kebab-case (lowercase letters, digits, hyphens) - warning
description-no-whendescription does not say WHEN to use the skill (no "use when") - note
frontmatter-keyunknown frontmatter key "spec" - note
frontmatter-keyunknown frontmatter key "id" - note
frontmatter-keyunknown frontmatter key "platform_compatibility" - note
frontmatter-keyunknown frontmatter key "changelog"
Process rating: all ten parameters 44/100
- 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
- 40Consistency. Frontmatter name (Secure Script Runner (Zero‑Exposure Sandbox)) differs from the folder (secure-script-runner)
- 60Tools and files. Uses tools (python, node) that frontmatter does not declare
- 70Inputs and preconditions. Inputs and preconditions are listed
- 85Steps. 42 steps, 1 vague phrases
- 100Execution cost. Instruction body is 3051 tokens
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
- low 17 top-level sections: this looks like several domains in one skill
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
- -2localhost URLs: will not work for another user
- +2Single-language instructions
- +3Description length 381: enough signal without eating the budget
- +4Structure: 36 headings
- +3Step-by-step instructions: 42 items
- +4Has examples (16 code blocks)
- +1License stated
Quality base 70; lint remarks subtract, signals add up to 100. Result: 63.