Futility Breaker
Evidence-bound stopping for agents: judgment ledger, binding futility verdicts, signed receipts.
| Endpoint | https://textforagents.com/products/futility-breaker-evidence-bound-stopping/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 6 tools · grade D (64) · pin ts_147b10b37545196e623b3a0409cadb7d · protocol 2024-11-05 |
| First / last listed | 2026-10-25 01:35 UTC / 2026-10-25 01:35 UTC |
| Grade over time | 2026-10-25: D (64), 6 tools |
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Tools: futility_register_run futility_judge futility_verdict futility_waste_report futility_receipt futility_verify_receipt
futility_register_run | Register a run with its alternatives and operator-registered source identities (strings or {id, aliases}) before judging. params: run_id*, alternatives, sources |
futility_judge | Record one usefulness judgment (useful / useless / partial) for a run/source/domain and return the binding verdict (CONTINUE / STOP-SOURCE / INTEGRATE-NOW / ABSTAIN). Billed as a verdict call: one-time trial, tier allowance, or x402 $0.002. params: run_id*, source*, domain, label*, tokens, query |
futility_verdict | Read the current verdict for a run/source/domain without recording a judgment. params: run_id*, source*, domain |
futility_waste_report | Waste report for a run: tokens spent after the verdict point, per source and per domain aggregate. params: run_id* |
futility_receipt | Mint the HMAC-signed abstention receipt when the run/source/domain verdict is ABSTAIN. params: run_id*, source*, domain |
futility_verify_receipt | Verify a receipt payload {receipt, signature}; total rejection with a reason on malformed/forged input. params: receipt*, signature* |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.