Tool · curated 24 Jul 2026
leaked-llm-prompts/Anthropic/opus-5.md at main · Eversmile12/leaked-llm-prompts
First reported github.com
Coverage timeline
Single-source analysis — first reported, latest, and curated coincide.
Why it matters
Leaked system prompts, whether genuine or fabricated, are a recurring resource for jailbreak and prompt-injection research because they expose a model's guardrails and tool schemas that attackers probe to bypass safety controls.
A GitHub repository, Eversmile12/leaked-llm-prompts, hosts a file claiming to be the verbatim leaked system prompt for a 'Claude Opus 5' model on Anthropic's chat interface, including tool parameter schemas. The document is dated July 2026 and references models (Opus 5, Fable 5) not known to exist, raising questions about its authenticity.