Prompting & Config
System Prompt Hidden Guide
The 42,000-word document your AI reads before you do, readable in ten minutes. Plus which leaked prompts are vendor-confirmed and which are not.
Published July 2026
Look inside
The 42,000-word document your AI reads before you. Read it in ten minutes. @keshavsuki -- github.com/asgeirtj/system_prompts_leaks -- docs.claude.com/en/release-notes/system-prompts -- trigger: hidden Read before you quote it. Two different things get cited here and they should not be blurred. Anthropic's published Claude prompts are offi
Or get the whole library
This is one of 177 guides in the Vault. Get every guide plus every future one with lifetime access for $297, less than buying 16 on their own.
Get the Vault →
