Insecure-deserialization playbook — fingerprint the language/format (Java serialized, .NET BinaryFormatter, Python pickle, PHP unserialize, Node serialize, YAML/JSON-with-types), then build a working gadget chain with ysoserial / ysoserial.net / phpggc / custom pickle. Use when you see serialized blobs (rO0/AC ED, base64 ViewState, PHP O:) or a parameter/cookie that deserializes user input.
$npx -y skills add pentesterflow/agent --skill deserializeInstalls into the current project.
Run `npx skills use "https://github.com/pentesterflow/agent" --skill "pentesterflow/agent/deserialize"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/pentesterflow/agent" that are relevant to the current task. Run `npx skills add "https://github.com/pentesterflow/agent"` and select the relevant skills, then follow their instructions.