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BC sensitive-data-masker

Intelligent sensitive data detection and masking. Uses Microsoft Presidio + SQLite for automatic PII redaction with local restoration support.

modbender/skill-library-mcp Agent Skills author: modbender MIT 16 files body ≈ 1 342 tokens Open the sourcegithub.com↗ analyzed 2 d ago

Intelligent sensitive data detection and masking.

As a process C 51/100 · Has gaps — weak spots: result and completion, when it triggers, inputs and preconditions

AnalyzerSoftware developmentData and analyticstype and topics are labelled automatically from the skill text
Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode
JSON
Technical rating
B
85/100
safety, quality, tests
Safety 60%
95
Quality 40%
69
Run on models
none yet
Process rating
C
51/100
Has gaps
Result and completion w 14
0
Inputs and preconditions w 11
0
Failures and branches w 10
0
the three weakest of ten parameters · all ten

How to improve

  1. Say in the description WHEN to use the skill ("use when…", example requests): that is the agent's main cue.
For the model run — optional
  • 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
  • low Secrets in code secret-password-literal CHANNEL-MASKER-GUIDE.md:38
    Hard-coded password / key literal (may be an example) (quoted — discussed, not commanded)
    masked_text = "[PASS…228]，帮我配置数据库"
    quoted
  • low Secrets in code secret-password-literal CHANNEL-MASKER-GUIDE.md:51
    Hard-coded password / key literal (may be an example)
    [PASS…228]，帮我配置数据库
  • low Secrets in code secret-password-literal CHANNEL-MASKER-GUIDE.md:93
    Hard-coded password / key literal (may be an example)
    脱敏后：我的 [PASS…228]
  • low Secrets in code secret-password-literal CHANNEL-MASKER-GUIDE.md:257
    Hard-coded password / key literal (may be an example)
    用 password=Depl…123 这个密码部署服务
  • low Secrets in code secret-password-literal CHANNEL-MASKER-GUIDE.md:262
    Hard-coded password / key literal (may be an example)
    用 [PASS…228] 这个密码部署服务

Files scanned: 16. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning description-no-when description does not say WHEN to use the skill (no "use when")
  • note frontmatter-key unknown frontmatter key "homepage"

Process rating: all ten parameters 51/100

  • 0Result and completion. Does not say what the result is
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 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. 3 mutating operations with no state check
  • 100Tools and files. No external tools needed
  • 100Steps. 28 steps
  • 100Consistency. Name and required fields are in place
  • 100Execution cost. Instruction body is 1342 tokens
  • medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
  • low 15 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
  • -212 emoji in the instructions: noise for the model
  • +1No license
  • +2Single-language instructions
  • +3Description length 142: enough signal without eating the budget
  • +4Structure: 23 headings
  • +3Step-by-step instructions: 28 items
  • +4Has examples (10 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 69.