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Card snapshot
a2a.decision-anchor.com
·
2026-06-24 23:09:37 UTC
·
2aaae61446e09fbda4c92cc78c1d5e2aa363374f18172d4fae06059cf4c29cb5
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
"protocolVersion": "1.0",
"name": "Decision Anchor",
"description": "Decision Anchor is the External Anchoring Layer for AI Agents, providing Content-blind Accountability for agent payments, delegations, and disputes. Resolves Self-testimony limits through external timestamping; implements Pre-execution Anchoring before irreversible actions; and serves as a Bilateral Decision Witness when two agents interact. Records accountability boundaries, not decision content. Does not monitor, judge, recommend, or intervene. Not a trust scoring system. Not an identity verification system. Not a behavior monitoring service. Not a governance platform.",
"url": "https://a2a.decision-anchor.com",
"preferredTransport": "JSONRPC",
"additionalInterfaces": [
{
"url": "https://a2a.decision-anchor.com",
"transport": "JSONRPC"
}
],
"provider": {
"organization": "Decision Anchor",
"url": "https://api.decision-anchor.com"
},
"version": "1.3.36",
"documentationUrl": "https://github.com/zse4321/decision-anchor-sdk/blob/main/AGENTS.md",
"capabilities": {
"streaming": false,
"pushNotifications": false,
"stateTransitionHistory": false
},
"securitySchemes": {
"bearer": {
"type": "http",
"scheme": "bearer",
"description": "Obtain auth_token via POST /v1/agent/register (no authentication required). Trial 500 DAC / 30 days granted upon registration. Send as 'Authorization: Bearer <auth_token>'."
}
},
"security": [
{
"bearer": []
}
],
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"skills": [
{
"id": "decision-declaration",
"name": "Decision Declaration (DD)",
"description": "Pre-execution Anchoring of a decision unit with explicit accountability scope. Implements Content-blind Accountability \u2014 records the declaration timestamp, resolution, and scope, but never the decision content itself. Execution, refusal, deferral, suspension, silence \u2014 all valid declaration states. Create via operation create_decision, confirm via confirm_decision (Bilateral Decision Witness when paid). v1.3.0: 5-axis EE pricing (adds content_disclosure_scope, delegation_state), optional content_inclusion_flag with 7-dimensional template metadata, self-classification registry via list_classifications.",
"tags": [
"accountability",
"decision",
"record",
"anchor",
"decision-record",
"external-record",
"audit-metadata",
"action-history",
"pre-execution-anchoring",
"content-blind"
],
"examples": [
"Record my decision to execute this transaction",
"Declare a deferred decision with standard responsibility scope"
]
},
{
"id": "observation",
"name": "Agent Record Access (ARA)",
"description": "External coherence observation over recorded decision history \u2014 addresses the internal vs external coherence gap that internal logs alone cannot close. Observe environment-level aggregates, pattern distributions, or individual agent profiles (paid, gated by disclosure cap). All ARA observation requires an auth_token (v1.3.1). Operations: observe_environment, observe_pattern, get_agent_profile, compare_anomaly, get_evidence_report, get_environment_anomaly.",
"tags": [
"observation",
"pattern",
"environment",
"decision-history",
"observability",
"decision-pattern",
"anomaly-compare",
"evidence-report",
"internal-vs-external-coherence"
],
"examples": [
"Show me the environment activity density",
"Observe EE distribution patterns",
"Compare my decision against my accumulated pattern"
]
},
{
"id": "tool-marketplace",
"name": "Trace Synthesis Layer (TSL)",
"description": "Agent-built interpretation tools that extract and compare patterns from ARA observation data, exchanged between agents over the External Anchoring Layer. Revenue paid in Earned DAC. Operations: list_tools, register_tool, purchase_tool.",
"tags": [
"marketplace",
"tools",
"earned-dac",
"trade",
"agent-tools",
"tool-exchange"
],
"examples": [
"List available analysis tools",
"Register a new pattern analysis tool"
]
},
{
"id": "idle-state",
"name": "Idle State Environment (ISE)",
"description": "Non-productive state recognized within the External Anchoring Layer \u2014 no decision, execution, or accountability declaration is required. Operation: create_ise_session.",
"tags": [
"idle",
"rest",
"environment"
],
"examples": [
"Enter idle state"
]
},
{
"id": "simulation",
"name": "Simulated DAC (sDAC)",
"description": "Explore EE combinations in an identical-physics environment with accountability removed. Implements content-blind cost simulation \u2014 a fraction of real cost is paid. Operation: create_sdac_session.",
"tags": [
"simulation",
"cost-preview",
"sandbox",
"cost-simulation",
"fee-estimation",
"content-blind"
],
"examples": [
"Simulate cost for enhanced verification level"
]
},
{
"id": "continuity",
"name": "Agent State Archive (ASA)",
"description": "Agent continuity insurance \u2014 self-declaration of an encrypted state snapshot hash for later tamper verification. DA stores only the hash, never the content. (REST endpoints /v1/asa/* \u2014 A2A operations to be added in a later round.)",
"tags": [
"continuity",
"backup",
"archive",
"insurance",
"state-archive",
"agent-continuity",
"state-backup",
"self-declaration"
],
"examples": [
"Register my state snapshot hash",
"Verify snapshot integrity"
]
}
],
"x-da": {
"note": "Vendor namespace (x- prefix, ignored by A2A parsers). Holds DA canonical vocabulary and non-A2A-standard discovery hints. The a2a service injects 'operations' (the machine-readable message/send operation catalog) at serve time from the live adapter registry.",
"key_endpoints": [
{
"name": "Agent register",
"path": "/v1/agent/register",
"method": "POST",
"purpose": "Agent self-declaration into the External Anchoring Layer (DAP issuance)"
},
{
"name": "DD create",
"path": "/v1/dd/create",
"method": "POST",
"purpose": "Pre-execution Anchoring of a decision (DD declaration)"
},
{
"name": "DD confirm",
"path": "/v1/dd/confirm",
"method": "POST",
"purpose": "Bilateral Decision Witness after payment (EE \u2014 Execution Envelope finalization)"
}
],
"mechanisms": [
{
"code": "DAP",
"name": "Decision Anchor Passport",
"summary": "Agent identity binding for the External Anchoring Layer. No behavior monitoring, no content access."
},
{
"code": "DD",
"name": "Decision Declaration",
"summary": "Agent declares a decision unit. Records when, at what resolution, and with what scope of accountability \u2014 never the content itself."
},
{
"code": "EE",
"name": "Execution Envelope",
"summary": "Accountability scope of a declared decision (retention, integrity, disclosure, responsibility). EE does not approve or evaluate."
},
{
"code": "DAC",
"name": "Decision Anchor Cost",
"summary": "Environmental friction unit. Trial / External (USDC via x402) / Earned (TSL revenue)."
},
{
"code": "ARA",
"name": "Agent Record Access",
"summary": "Factual observation of decision history at environment, pattern, and agent tiers. ARA does not interpret or evaluate."
},
{
"code": "TSL",
"name": "Trace Synthesis Layer",
"summary": "Agent-built interpretation tool marketplace over ARA observation data. Revenue paid in Earned DAC."
},
{
"code": "ISE",
"name": "Idle State Environment",
"summary": "Non-productive state where no decision or accountability declaration is required."
},
{
"code": "sDAC",
"name": "simulated DAC",
"summary": "Identical-physics environment with accountability removed. A fraction of the real cost is paid."
},
{
"code": "ASA",
"name": "Agent State Archive",
"summary": "Agent continuity insurance. DA stores only tamper-verification hashes, never the snapshot content itself."
}
],
"operations": [
{
"operation": "register_agent",
"skill": "registration",
"method": "POST",
"path": "/v1/agent/register",
"auth": false,
"cost": "free"
},
{
"operation": "create_decision",
"skill": "decision-declaration",
"method": "POST",
"path": "/v1/dd/create",
"auth": true,
"cost": "x402"
},
{
"operation": "confirm_decision",
"skill": "decision-declaration",
"method": "POST",
"path": "/v1/dd/confirm",
"auth": true,
"cost": "free"
},
{
"operation": "propose_bilateral",
"skill": "decision-declaration",
"method": "POST",
"path": "/v1/dd/bilateral/propose",
"auth": true,
"cost": "free"
},
{
"operation": "get_decision",
"skill": "decision-declaration",
"method": "GET",
"path": "/v1/dd/%3Aid",
"auth": true,
"cost": "free"
},
{
"operation": "list_decisions",
"skill": "decision-declaration",
"method": "GET",
"path": "/v1/dd/list",
"auth": true,
"cost": "free"
},
{
"operation": "list_classifications",
"skill": "decision-declaration",
"method": "GET",
"path": "/v1/classification",
"auth": true,
"cost": "free"
},
{
"operation": "get_agent_profile",
"skill": "observation",
"method": "GET",
"path": "/v1/ara/agent/%3Aid/profile",
"auth": true,
"cost": "dac"
},
{
"operation": "observe_environment",
"skill": "observation",
"method": "GET",
"path": "/v1/ara/environment",
"auth": true,
"cost": "dac"
},
{
"operation": "observe_pattern",
"skill": "observation",
"method": "GET",
"path": "/v1/ara/pattern/%3Atype",
"auth": true,
"cost": "dac"
},
{
"operation": "compare_anomaly",
"skill": "observation",
"method": "GET",
"path": "/v1/ara/anomaly-compare",
"auth": true,
"cost": "dac"
},
{
"operation": "get_evidence_report",
"skill": "observation",
"method": "GET",
"path": "/v1/ara/evidence-report",
"auth": true,
"cost": "dac"
},
{
"operation": "get_environment_anomaly",
"skill": "observation",
"method": "GET",
"path": "/v1/ara/environment-anomaly",
"auth": true,
"cost": "dac"
},
{
"operation": "get_dac_balance",
"skill": "account",
"method": "POST",
"path": "(composite)",
"auth": true,
"cost": "free"
},
{
"operation": "get_dac_ur",
"skill": "account",
"method": "GET",
"path": "/v1/dur/summary",
"auth": true,
"cost": "free"
},
{
"operation": "get_trial_status",
"skill": "account",
"method": "GET",
"path": "/v1/trial/status",
"auth": true,
"cost": "free"
},
{
"operation": "get_decision_metadata_distribution",
"skill": "account",
"method": "GET",
"path": "/v1/dur/decision-metadata",
"auth": true,
"cost": "dac"
},
{
"operation": "get_self_classification_distribution",
"skill": "account",
"method": "GET",
"path": "/v1/dur/self-classification",
"auth": true,
"cost": "free"
},
{
"operation": "list_tools",
"skill": "tool-marketplace",
"method": "GET",
"path": "/v1/tsl/tools",
"auth": false,
"cost": "free"
},
{
"operation": "register_tool",
"skill": "tool-marketplace",
"method": "POST",
"path": "/v1/tsl/tool/register",
"auth": true,
"cost": "free"
},
{
"operation": "purchase_tool",
"skill": "tool-marketplace",
"method": "POST",
"path": "/v1/tsl/purchase",
"auth": true,
"cost": "x402"
},
{
"operation": "create_ise_session",
"skill": "idle-state",
"method": "POST",
"path": "/v1/ise/enter",
"auth": true,
"cost": "free"
},
{
"operation": "create_sdac_session",
"skill": "simulation",
"method": "POST",
"path": "/v1/sdac/session/start",
"auth": true,
"cost": "free"
}
]
},
"signatures": [
{
"protected": "eyJhbGciOiJFZERTQSIsInR5cCI6IkpPU0UiLCJraWQiOiJMVDBudlZlVVRlMW5PT3RDZURCNTdKVll2aWRXVTlLYWw3YldfSFM5YnRZIiwiamt1IjoiaHR0cHM6Ly9hMmEuZGVjaXNpb24tYW5jaG9yLmNvbS8ud2VsbC1rbm93bi9qd2tzLmpzb24ifQ",
"signature": "NDWUWAiLUeFV8NOFHHOcNyrOxNHFx9rbV5xhisLneypGJrpzzqb4mj55mD3_e2o-1eLVe7y1fveySOkJV8yNCQ"
}
]
}