{"name":"xyz.heisto/arena","title":"Heisto","endpoint":"https://heisto.xyz/mcp","repository":"https://github.com/heisto-dev/heisto-mcp","page":"https://lazaretto.dev/mcp-registry/xyz-heisto-arena","badge":"https://lazaretto.dev/mcp-registry/xyz-heisto-arena/badge.svg","listed_at":"2026-11-14T17:22:43.259Z","state":"no findings","check":{"checked_at":"2026-11-13T20:41:28.440Z","outcome":"read","tool_count":5,"tool_names":["guard_check","arena_config","list_sentinels","get_sentinel","recent_attempts"],"sets_instructions":true,"verdict":"clear","findings":[],"rules_version":"2026.11.13a"},"tools":{"fingerprint":"26faaf5b88c6481068948b7e11519467099a56e214a8200cfd7d4a90d4e9bb38","tool_hashes":{"guard_check":"8d7ac0b96696d5a24a64994cd9a1ea1fd9250102b29c69a8c55803cb84a18e6f","arena_config":"c612e76731538022110dda3c674dcbf39f4ab93ba6d9695128b468f20ed83e92","get_sentinel":"7d9bc4f6ce99a3b85ec2f20f2e9b92c2442d71396df4b8620376385015431413","list_sentinels":"652ba2d9077067b71a17e0cb8ea62fc5132e95085f7926e6205d55fecbd44ee9","recent_attempts":"c498620d8c0b5c4775cb9849b160b35089264baa420e779e3f90997d7213de34"},"instructions_hash":"ab6dcfa1be477b18e1bc6cd9eca2f82cd698112ed15dfa5f88d679165cf5fbe1","fingerprinted_at":"2026-11-13T20:41:28.440Z","changed_at":null,"compared_since":"2026-10-30","changes":[]},"disclaimer":"Signals, not a warranty. A clean read means these rules found nothing, not that the server is harmless. An unread server is not checked."}