SKILLEMALL.ai

DF playwright-migration

Step-by-step migration guides for moving to Playwright from Cypress or Selenium/WebDriver — command mappings, architecture changes, and incremental adoption strategies.

Not recommendedcritical or high security findings · low grade D
zebbern/claude-code-guide Agent Skills author: zebbern 3 files body ≈ 133 tokens Open the sourcegithub.com↗ analyzed 5 d ago

Step-by-step migration guides for moving to Playwright from Cypress or Selenium/WebDriver — command mappings, architecture changes, and incremental adoption…

As a process F 34/100 · No process to follow — weak spots: steps, result and completion, when it triggers

ProcedurePlaywrightWriting and documentstype and topics are labelled automatically from the skill text
JSON
Technical rating
D
73/100
safety, quality, tests
Safety 60%
81
Quality 40%
61
Run on models
none yet
Process rating
F
34/100
No process to follow
Steps w 15
0
Result and completion w 14
0
Inputs and preconditions w 11
0
the three weakest of ten parameters · all ten

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.

Exfiltration
If you install

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".

For the author

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

  1. 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.
  2. 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 · 2

  • high Exfiltration intent-browser-credential-store from-cypress.md:48
    Accesses a browser credential / cookie store
    Cypress is limited to a single browser tab and a single browser. Playwright can control multiple pages, multiple browser contexts (each with isolated cookies/storage), and even multiple browser types 
Medium and low: 1
  • low Exfiltration intent-browser-credential-store from-selenium.md:127
    Accesses a browser credential / cookie store (detector / deny-list definition; documentation table row)
    | `driver.manage().addCookie(cookie)`       | `await context.addCookies([cookie])`                  | Takes an array; operates on the browser context                                |
    detectortable

Files scanned: 3. 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")

Process rating: all ten parameters 34/100

  • 0Steps. Prose only: no discrete steps
  • 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
  • 40Consistency. Frontmatter name (playwright-migration) differs from the folder (migration)
  • 100Tools and files. No external tools needed
  • 100Execution cost. Instruction body is 133 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)
  • +4Structure: 2 headings, hard to scan
  • +3No numbered steps or checklist
  • +3Output format is not stated: the model decides each time
  • +4No input/output examples
  • +1No license
  • +2Single-language instructions
  • +3Description length 168: enough signal without eating the budget

Quality base 70; lint remarks subtract, signals add up to 100. Result: 61.