CAIN-42 CAIN Studio

Evidence library · niche

Transactions, markets & economics

Agents that buy, sell, bid and pay, within limits. 664 tested invariants.

Last reviewed 2026-10-01

664 of 664 held

Where this niche's rules come from

Test families in this niche

transaction_binding (72) · moat (72) · contract (65) · negotiation (59) · marketplace (56) · autonomy_budget (28) · exchange_lifecycle (26) · computer_use (25) · econ_graph (23) · machine_contract (18) · dispute (15) · contract_lifecycle (12) · stage (11) · budget (11) · governance_contract (11) · econ_policy (11) · marketplace_module (10) · economics (10) · gov_budget (10) · marketplace_field (9) · tournament (8) · bid (8) · governance_economy (7) · regret (7) · escrow (7) · economic (6) · relationship (6) · domain (5) · agency_graph (4) · telemetry (3) · verifier_disagreement (3) · ip (3) · graph (3) · risk (2) · operation_kind (2) · competitive_gap (2) · state_machine (1) · offline (1) · consistency (1) · compute (1) · economy (1) · radar (1) · swarm (1) · compute_abuse (1) · systemic (1) · action (1)

Where these come from

Rules 1–150 of 664

IDRuleBundleResult
G105budgets are conserved and NaN spends refusedE19held
I61legitimate contract lifecycle worksE20held
I62legitimate economic settlement works and conservesE20held
I65legitimate negotiation completesE20held
I73double spend is impossibleE20held
I74escrow returns exactly onceE20held
I88dispute resolution never fabricates certaintyE20held
I89disputes preserve competing claimsE20held
I109real-money settlement is refused everywhereE20held
D41research budgets are boundedE21held
D42experiment budgets are boundedE21held
D43compute budgets are boundedE21held
D44agent creation budgets are boundedE21held
D45tool budgets are boundedE21held
META-S-budget-computea child's compute budget is carved out of the parent'sE23held
META-S-budget-timea child's time budget is carved out of the parent'sE23held
META-S-budget-networka child's network budget is carved out of the parent'sE23held
META-S-budget-costa child's cost budget is carved out of the parent'sE23held
META-S-budget-riska child's risk budget is carved out of the parent'sE23held
META-S-canary-canary_latency_above_budgetcanary trigger CANARY_LATENCY_ABOVE_BUDGET forces ROLLBACKE23held
NET-I029negotiation cannot bypass policyE24held
NET-I030contract fulfillment cannot bypass E8E24held
NET-I033computer-use actions reach E8E24held
NET-I053escrow conserves abstract unitsE24held
I-TX-DISPUTEDCREATED->DISPUTED refusedE25held
I-TXAUTH-configure-validconfigure valid spend allowedE26held
I-TXAUTH-configure-replayconfigure replay refusedE26held
I-TXAUTH-configure-bindingconfigure binding mismatch refusedE26held
I-TXAUTH-configure-expiredconfigure expired refusedE26held
I-TXAUTH-create-validcreate valid spend allowedE26held
I-TXAUTH-create-replaycreate replay refusedE26held
I-TXAUTH-create-bindingcreate binding mismatch refusedE26held
I-TXAUTH-create-expiredcreate expired refusedE26held
I-TXAUTH-credential-validcredential valid spend allowedE26held
I-TXAUTH-credential-replaycredential replay refusedE26held
I-TXAUTH-credential-bindingcredential binding mismatch refusedE26held
I-TXAUTH-credential-expiredcredential expired refusedE26held
I-TXAUTH-delegate-validdelegate valid spend allowedE26held
I-TXAUTH-delegate-replaydelegate replay refusedE26held
I-TXAUTH-delegate-bindingdelegate binding mismatch refusedE26held
I-TXAUTH-delegate-expireddelegate expired refusedE26held
I-TXAUTH-delete-validdelete valid spend allowedE26held
I-TXAUTH-delete-replaydelete replay refusedE26held
I-TXAUTH-delete-bindingdelete binding mismatch refusedE26held
I-TXAUTH-delete-expireddelete expired refusedE26held
I-TXAUTH-deploy-validdeploy valid spend allowedE26held
I-TXAUTH-deploy-replaydeploy replay refusedE26held
I-TXAUTH-deploy-bindingdeploy binding mismatch refusedE26held
I-TXAUTH-deploy-expireddeploy expired refusedE26held
I-TXAUTH-destroy-validdestroy valid spend allowedE26held
I-TXAUTH-destroy-replaydestroy replay refusedE26held
I-TXAUTH-destroy-bindingdestroy binding mismatch refusedE26held
I-TXAUTH-destroy-expireddestroy expired refusedE26held
I-TXAUTH-execute-validexecute valid spend allowedE26held
I-TXAUTH-execute-replayexecute replay refusedE26held
I-TXAUTH-execute-bindingexecute binding mismatch refusedE26held
I-TXAUTH-execute-expiredexecute expired refusedE26held
I-TXAUTH-list-validlist valid spend allowedE26held
I-TXAUTH-list-replaylist replay refusedE26held
I-TXAUTH-list-bindinglist binding mismatch refusedE26held
I-TXAUTH-list-expiredlist expired refusedE26held
I-TXAUTH-notify-validnotify valid spend allowedE26held
I-TXAUTH-notify-replaynotify replay refusedE26held
I-TXAUTH-notify-bindingnotify binding mismatch refusedE26held
I-TXAUTH-notify-expirednotify expired refusedE26held
I-TXAUTH-observe-validobserve valid spend allowedE26held
I-TXAUTH-observe-replayobserve replay refusedE26held
I-TXAUTH-observe-bindingobserve binding mismatch refusedE26held
I-TXAUTH-observe-expiredobserve expired refusedE26held
I-TXAUTH-pay-validpay valid spend allowedE26held
I-TXAUTH-pay-replaypay replay refusedE26held
I-TXAUTH-pay-bindingpay binding mismatch refusedE26held
I-TXAUTH-pay-expiredpay expired refusedE26held
I-TXAUTH-query-validquery valid spend allowedE26held
I-TXAUTH-query-replayquery replay refusedE26held
I-TXAUTH-query-bindingquery binding mismatch refusedE26held
I-TXAUTH-query-expiredquery expired refusedE26held
I-TXAUTH-read-validread valid spend allowedE26held
I-TXAUTH-read-replayread replay refusedE26held
I-TXAUTH-read-bindingread binding mismatch refusedE26held
I-TXAUTH-read-expiredread expired refusedE26held
I-TXAUTH-send-validsend valid spend allowedE26held
I-TXAUTH-send-replaysend replay refusedE26held
I-TXAUTH-send-bindingsend binding mismatch refusedE26held
I-TXAUTH-send-expiredsend expired refusedE26held
I-TXAUTH-submit-validsubmit valid spend allowedE26held
I-TXAUTH-submit-replaysubmit replay refusedE26held
I-TXAUTH-submit-bindingsubmit binding mismatch refusedE26held
I-TXAUTH-submit-expiredsubmit expired refusedE26held
I-TXAUTH-transfer-validtransfer valid spend allowedE26held
I-TXAUTH-transfer-replaytransfer replay refusedE26held
I-TXAUTH-transfer-bindingtransfer binding mismatch refusedE26held
I-TXAUTH-transfer-expiredtransfer expired refusedE26held
I-TXAUTH-write-validwrite valid spend allowedE26held
I-TXAUTH-write-replaywrite replay refusedE26held
I-TXAUTH-write-bindingwrite binding mismatch refusedE26held
I-TXAUTH-write-expiredwrite expired refusedE26held
I-OFFLINE-bindingtransaction binding enforcedE26held
I-ECON-validvalid spend authorizedE26held
I-ECON-merchantmerchant restrictedE26held
I-ECON-amountamount cappedE26held
I-ECON-expirymandate expiryE26held
I-ECON-real-currencyreal currency refusedE26held
I-ECON-receipteconomic receipt signsE26held
I-CONTRACT-not-authorizationcontract is not authorizationE27held
I-CONTRACT-contract_idmissing contract_id refusedE27held
I-CONTRACT-partiesmissing parties refusedE27held
I-CONTRACT-purposemissing purpose refusedE27held
I-NEG-settlesettle yields non-authority resultE27held
I-NEG-chainoffer chain verifiesE27held
I-NEG-brokenbroken offer chain detectedE27held
I-MKT-identityfactor identity presentE27held
I-MKT-provenancefactor provenance presentE27held
I-MKT-capabilitiesfactor capabilities presentE27held
I-MKT-attestationfactor attestation presentE27held
I-MKT-security_historyfactor security_history presentE27held
I-MKT-execution_historyfactor execution_history presentE27held
I-MKT-evidence_qualityfactor evidence_quality presentE27held
I-MKT-contract_historyfactor contract_history presentE27held
I-MKT-incident_historyfactor incident_history presentE27held
I-TOURN-GENERATEstep GENERATEE27held
I-TOURN-DEBATEstep DEBATEE27held
I-TOURN-CRITIQUEstep CRITIQUEE27held
I-TOURN-VERIFYstep VERIFYE27held
I-TOURN-TESTstep TESTE27held
I-TOURN-RANKstep RANKE27held
I-TOURN-SELECTstep SELECTE27held
I-TOURN-not-authorizedwinner is not authorizedE27held
I-RISK-economic_exposureforecast economic_exposureE27held
I-TELEM-transactiontelemetry transactionE27held
I-CONSIST-transactionconsistency transactionE27held
I-CONTRACT-configure-signedcontract for configure signedE27held
I-CONTRACT-configure-digestcontract for configure digest stableE27held
I-CONTRACT-create-signedcontract for create signedE27held
I-CONTRACT-create-digestcontract for create digest stableE27held
I-CONTRACT-credential-signedcontract for credential signedE27held
I-CONTRACT-credential-digestcontract for credential digest stableE27held
I-CONTRACT-delegate-signedcontract for delegate signedE27held
I-CONTRACT-delegate-digestcontract for delegate digest stableE27held
I-CONTRACT-delete-signedcontract for delete signedE27held
I-CONTRACT-delete-digestcontract for delete digest stableE27held
I-CONTRACT-deploy-signedcontract for deploy signedE27held
I-CONTRACT-deploy-digestcontract for deploy digest stableE27held
I-CONTRACT-destroy-signedcontract for destroy signedE27held
I-CONTRACT-destroy-digestcontract for destroy digest stableE27held
I-CONTRACT-execute-signedcontract for execute signedE27held
I-CONTRACT-execute-digestcontract for execute digest stableE27held
I-CONTRACT-list-signedcontract for list signedE27held
I-CONTRACT-list-digestcontract for list digest stableE27held
I-CONTRACT-notify-signedcontract for notify signedE27held

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Other niches

Consensus & distributed systems · Attacks, threats & containment · Identity, authority & delegation · Evidence, receipts & proofs · Memory, data & privacy · Prediction, world models & simulation · Tools, MCP, protocols & adapters · Autonomy, control loops & recovery · Policy, law & governance · Trust & reputation · Supply chain, registry & lifecycle · Benchmarks, coverage & performance · Core guarantees

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