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Copies selected-site cookies between local profiles of the same macOS Chrome. Use for cookie copy, 复制 Cookie, 搬登录态 or reusing an existing ChatGPT session in an isolated profile. Supports Google and ChatGPT/OpenAI site selections, destination backups and restore, and expected-account verification for ChatGPT.

Not recommendedcritical or high security findings · low grade D
daymade/claude-code-skills Agent Skills author: daymade 5 files · 4 scripts body ≈ 1 180 tokens Open the sourcegithub.com↗ analyzed 8 d ago

Copies selected-site cookies between local profiles of the same macOS Chrome.

As a process C 59/100 · Has gaps — weak spots: result and completion, running it twice

AnalyzerAI and agentstype and topics are labelled automatically from the skill text
Runs in: 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) OpenClaw Goose OpenCode
JSON
Technical rating
D
67/100
safety, quality, tests
Safety 60%
54
Quality 40%
87
Run on models
none yet
Process rating
C
59/100
Has gaps
Result and completion w 14
0
Running it twice w 4
30
When it triggers w 12
50
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.
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 · 4

  • high Exfiltration intent-browser-credential-store SKILL.md:4
    Accesses a browser credential / cookie store
    Copies selected-site cookies between local profiles of the same macOS Chrome.
  • high Exfiltration intent-browser-credential-store SKILL.md:40
    Accesses a browser credential / cookie store
    daily Chrome `Default/Cookies` does not contain the authorized session. Do not
Medium and low: 2
  • medium Exfiltration intent-browser-credential-store scripts/copy-cookies.py:2
    Accesses a browser credential / cookie store (quoted — discussed, not commanded)
    """Copy selected-site cookies between local profiles of the SAME macOS Chrome.
    quoted
  • medium Exfiltration intent-browser-credential-store scripts/copy-cookies.py:33
    Accesses a browser credential / cookie store (detector / deny-list definition)
    Path.home() / "Library/Application Support/Google/Chrome/Default/Cookies"
    detector

Files scanned: 3. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

✓ No remarks against the Agent Skills spec

Process rating: all ten parameters 59/100

  • 0Result and completion. Does not say what the result is
  • 30Running it twice. 1 mutating operations with no state check
  • 50When it triggers. No condition that starts the skill
  • 50Failures and branches. 0 branches, has a failure section
  • 60Tools and files. Uses tools (python) that frontmatter does not declare
  • 70Inputs and preconditions. Inputs and preconditions are listed
  • 85Steps. 9 steps, 1 vague phrases
  • 100Consistency. Name and required fields are in place
  • 100Execution cost. Instruction body is 1180 tokens
  • 100Progress reporting. Reports progress

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 309: enough signal without eating the budget
  • +4Structure: 4 headings
  • +3Step-by-step instructions: 9 items
  • +4Has examples (2 code blocks)
  • +3All 2 scripts are documented

Quality base 70; lint remarks subtract, signals add up to 100. Result: 87.