{"mcpName":"station__helix__advance","slug":"helix__advance","label":"advance","description":"Advance one turn on the helix. Given current turn and state, compute what the next turn requires. The truth doesn't change between turns — the resolution does. Returns the gap between current and next altitude.","domainSlug":"helix","pvRelevance":"non-pv","backend":"external","agentMetadata":{"idempotent":null,"read_only":null,"expected_latency_ms":null,"cost_tokens_estimate":null,"pipes_to":null},"inputSchema":{"type":"object","properties":{"current_turn":{"type":"integer","description":"Current helix turn (0-3). Cannot advance past turn 4."},"current_existence":{"type":"number","description":"Current ∃ score [0,1]"},"current_boundary":{"type":"number","description":"Current ∂ score [0,1]"},"current_state":{"type":"number","description":"Current ς score [0,1]"}},"required":["current_turn","current_existence","current_boundary","current_state"]},"example":null,"taxonomy":{"rank":{"domain":"Substrata","kingdom":"Constructa","phylum":"Configa","class":"station-config","order":"helix","family":"mcp-tool-config"},"characteristics":{"substrate":"config","domain":"pv","lifecycle":"continuous","stateful":false,"persistence":"none","authority":"read","compounding":"producer","io_input":"agent-request","io_output":"tool-response"}},"_links":{"html":"/tools/helix__advance","markdown":"/tools/helix__advance/raw.md","invoke":"/api/mcp","catalog":"/api/mcp"}}