{"uid":"cap_2ry9QdaD9aZik2DtjAN5w","slug":"delx-seeded-round-robin-start-aba85c2d","name":"Delx Seeded Round Robin Start","description":"Seeded Round Robin Start: Seeded Round Robin Start chooses a reproducible starting index for round-robin rotation from bounded caller-supplied values without an external provider. Call Seeded Round Robin Start when an agent needs a reproducible decision that another run can independently replay. Returns the deterministic selection plus seed provenance, population bounds, and the operation-specific outcome for Seeded Round Robin Start as versioned deterministic JSON. Price: $0.001 USDC via x402…","url":"https://api.delx.ai/api/v1/x402/seeded-round-robin-start","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"seed":{"type":"string","maxLength":8192,"description":"Seed supplied to Seeded Round Robin Start; used only for this bounded calculation and processed in memory without retention."},"member_count":{"type":"integer","description":"Member Count supplied to Seeded Round Robin Start; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"start_index":4,"member_count":7},"schema":"delx/util-seeded-round-robin-start/v1","status":"pass","evidence":{"retained":false,"input_sha256":"40cb4e4bb3e1dab089d71313a59ec0aa2f02317e2e48c56a5e4981cc84c221f5","external_calls":0},"operation":"seeded_decision:seeded_round_robin_start"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_P1HSW70dehDp4glLZtu4t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Deterministically computes a starting index for a seeded round-robin rotation across a fixed number of members","exampleAgentPrompt":"Using seed 'batch-job-2024-05-20' and 7 members, compute the starting index for a seeded round-robin rotation.","exampleUseCases":[{"title":"Fair task distribution across agent workers","prompt":"I have 5 worker agents and want to rotate task assignment fairly — use the seed 'run-batch-001' across 5 members to find which agent should go first."},{"title":"Reproducible API replica selection","prompt":"I need to pick a starting replica in a round-robin for request routing — seed is 'user-session-abc123' and there are 12 replicas total, which index do we start at?"},{"title":"Rotating shard assignment for analytics pipeline","prompt":"For our daily analytics job, use seed 'analytics-2024-06-01' with 8 shards and tell me the starting shard index so we distribute load consistently."}],"resultDescription":"Returns a JSON object with a start_index (the computed zero-based position to begin the round-robin) and the member_count confirming the pool size, along with a schema identifier, pass/fail status, and an evidence block confirming no external calls were made and inputs were not retained.","failureModes":["Missing or empty seed results in validation error","member_count of zero or negative triggers an error response","Extremely long seed strings (near 8192 char limit) may be rejected","Malformed JSON body returns 400-level error","Non-integer member_count causes schema validation failure"],"whenToPreferThis":"Use this endpoint when you need a deterministic, reproducible starting position in a round-robin rotation derived from a seed string — such as distributing tasks, rotating API replicas, or seeding scheduler offsets. Prefer this over a random start when reproducibility across runs matters. It operates entirely in-memory with no data retention, making it safe for sensitive seed values.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:08:48.865Z","isFirstParty":false}