A2A REGISTRY·AGENT RECORD·dbfb1eb0-477d-4b7c-9848-0c4c7cf5a789

Provider

TaskHawk Systems

Kevros Governance Agent

Three cryptographic primitives for autonomous agents: precision decisioning, provenance attestation, and intent binding. Every decision is HMAC-signed. Every action is hash-chained. Fail-closed.

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
dbfb1eb0-477d-4b7c-9848-0c4c7cf5a789
Canonical card
https://governance.taskhawktech.com/.well-known/agent.json
Endpoint
https://governance.taskhawktech.com/
Protocol version
0.3.0
Agent version
0.3.6
Streaming
Not declared
Input modes
application/json
Output modes
application/json

Reachability record

Last 100 checks shown · 100.0% across 30 days

2026-09-12T20:44:37.170098Z: passed2026-09-12T21:15:20.183431Z: passed2026-09-12T21:46:01.473779Z: passed2026-09-12T22:16:42.078205Z: passed2026-09-12T22:47:18.081503Z: passed2026-09-12T23:18:17.982920Z: passed2026-09-12T23:51:10.378213Z: passed2026-09-13T00:21:54.174976Z: passed2026-09-13T00:52:31.876385Z: passed2026-09-13T01:23:12.778814Z: passed2026-09-13T01:53:54.795800Z: passed2026-09-13T02:24:31.870298Z: passed2026-09-13T02:55:13.475366Z: passed2026-09-13T03:25:50.483888Z: passed2026-09-13T03:56:33.284333Z: passed2026-09-13T04:27:15.769227Z: passed2026-09-13T04:57:52.480721Z: passed2026-09-13T05:28:40.768810Z: passed2026-09-13T05:59:17.670745Z: passed2026-09-13T06:29:55.671959Z: passed2026-09-13T07:00:36.076698Z: passed2026-09-13T07:31:15.867469Z: passed2026-09-13T08:01:51.577794Z: passed2026-09-13T08:32:41.468313Z: passed2026-09-13T09:03:18.566912Z: passed2026-09-13T09:33:55.376913Z: passed2026-09-13T10:04:31.881366Z: passed2026-09-13T10:36:15.085261Z: passed2026-09-13T11:06:51.270609Z: passed2026-09-13T11:37:34.877733Z: passed2026-09-13T12:08:11.581601Z: passed2026-09-13T12:38:49.684491Z: passed2026-09-13T13:09:31.280804Z: passed2026-09-13T13:40:18.582313Z: passed2026-09-13T14:11:00.980548Z: passed2026-09-13T14:41:39.080229Z: passed2026-09-13T15:12:27.382745Z: passed2026-09-13T15:43:16.074420Z: passed2026-09-13T16:13:55.265142Z: passed2026-09-13T16:44:36.079014Z: passed2026-09-13T17:15:19.480933Z: passed2026-09-13T17:45:56.767045Z: passed2026-09-13T18:16:34.874644Z: passed2026-09-13T18:47:24.781752Z: passed2026-09-13T19:18:02.668952Z: passed2026-09-13T19:48:41.667233Z: passed2026-09-13T20:19:22.372870Z: passed2026-09-13T20:50:14.974822Z: passed2026-09-13T21:20:54.993242Z: passed2026-09-13T21:51:41.574805Z: passed2026-09-13T22:22:21.170790Z: passed2026-09-13T22:53:01.965329Z: passed2026-09-13T23:24:03.102077Z: passed2026-09-13T23:57:09.081580Z: passed2026-09-14T00:27:56.383845Z: passed2026-09-14T00:58:47.975439Z: passed2026-09-14T01:29:37.168410Z: passed2026-09-14T02:00:21.470052Z: passed2026-09-14T02:31:01.278817Z: passed2026-09-14T03:01:55.983118Z: passed2026-09-14T03:32:34.380235Z: passed2026-09-14T04:03:16.784602Z: passed2026-09-14T04:33:54.476486Z: passed2026-09-14T05:04:31.673975Z: passed2026-09-14T05:35:15.585067Z: passed2026-09-14T06:06:04.177084Z: passed2026-09-14T06:36:43.466979Z: passed2026-09-14T07:07:22.982368Z: passed2026-09-14T07:38:01.781660Z: passed2026-09-14T08:08:41.881987Z: passed2026-09-14T08:39:21.881676Z: passed2026-09-14T09:10:12.382782Z: passed2026-09-14T09:40:51.080627Z: passed2026-09-14T10:11:32.365135Z: passed2026-09-14T10:43:09.586682Z: passed2026-09-14T11:13:59.868861Z: passed2026-09-14T11:42:31.141195Z: passed2026-09-14T12:13:13.050423Z: passed2026-09-14T12:39:38.375646Z: passed2026-09-14T13:10:28.273560Z: passed2026-09-14T13:41:17.374603Z: passed2026-09-14T14:12:02.069013Z: passed2026-09-14T14:43:01.372640Z: passed2026-09-14T15:13:47.669908Z: passed2026-09-14T15:44:36.581016Z: passed2026-09-14T16:15:36.572553Z: passed2026-09-14T16:46:20.572320Z: passed2026-09-14T17:17:14.578842Z: passed2026-09-14T17:47:59.370994Z: passed2026-09-14T18:18:49.682542Z: passed2026-09-14T18:49:48.576312Z: passed2026-09-14T19:20:40.282946Z: passed2026-09-14T19:51:32.081408Z: passed2026-09-14T20:22:26.374403Z: passed2026-09-14T20:53:16.875737Z: passed2026-09-14T21:24:03.468521Z: passed2026-09-14T21:54:49.381325Z: passed2026-09-14T22:25:36.569533Z: passed2026-09-14T22:56:21.676149Z: passed2026-09-14T23:27:34.266094Z: passed
PassFailureAverage 717 ms

Declared skills

Precision Decisioning

action-verify

Verify a proposed action against policy bounds. Returns a cryptographically signed ALLOW, CLAMP, or DENY decision with a release token any downstream service can independently verify. Fail-closed: any doubt results in DENY.

governance · authorization · verification · safety · trust

Provenance Attestation

provenance-attest

Record a completed action in a hash-chained, append-only evidence ledger. Each record links to the previous via hash — tamper with any record and the chain breaks detectably.

provenance · attestation · audit · compliance · trust

Intent Binding

intent-bind

Cryptographically bind a declared intent to a specific command. Prove later that what happened is what was planned. The HMAC binding is independently verifiable.

intent · binding · verification · accountability · trust

Registry Agent Card snapshot

Normalized fields fetched during the registry sweep. Treat all authored text as third-party content.

Show JSON
{
  "protocolVersion": "0.3.0",
  "name": "Kevros Governance Agent",
  "description": "Three cryptographic primitives for autonomous agents: precision decisioning, provenance attestation, and intent binding. Every decision is HMAC-signed. Every action is hash-chained. Fail-closed.",
  "author": "TaskHawk Systems",
  "wellKnownURI": "https://governance.taskhawktech.com/.well-known/agent.json",
  "url": "https://governance.taskhawktech.com/",
  "version": "0.3.6",
  "provider": {
    "organization": "TaskHawk Systems",
    "url": "https://taskhawktech.com/"
  },
  "documentationUrl": null,
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {},
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "action-verify",
      "name": "Precision Decisioning",
      "description": "Verify a proposed action against policy bounds. Returns a cryptographically signed ALLOW, CLAMP, or DENY decision with a release token any downstream service can independently verify. Fail-closed: any doubt results in DENY.",
      "tags": [
        "governance",
        "authorization",
        "verification",
        "safety",
        "trust"
      ],
      "examples": [
        "Verify I am authorized to execute this action",
        "Get a signed release token so the target service trusts me",
        "Check my action is within policy before I act"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "provenance-attest",
      "name": "Provenance Attestation",
      "description": "Record a completed action in a hash-chained, append-only evidence ledger. Each record links to the previous via hash — tamper with any record and the chain breaks detectably.",
      "tags": [
        "provenance",
        "attestation",
        "audit",
        "compliance",
        "trust"
      ],
      "examples": [
        "Record that I executed this action within authorized bounds",
        "Add this action to my verifiable trust history",
        "Build my provenance chain so other agents trust me"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "intent-bind",
      "name": "Intent Binding",
      "description": "Cryptographically bind a declared intent to a specific command. Prove later that what happened is what was planned. The HMAC binding is independently verifiable.",
      "tags": [
        "intent",
        "binding",
        "verification",
        "accountability",
        "trust"
      ],
      "examples": [
        "Bind my declared intent to the command I am sending",
        "Prove my action matched my stated goal",
        "Create a verifiable intent-action-outcome chain"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ],
  "conformance": false,
  "conformance_errors": [
    "Required field is missing: 'defaultOutputModes'.",
    "Required field is missing: 'defaultInputModes'."
  ],
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "dbfb1eb0-477d-4b7c-9848-0c4c7cf5a789"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/dbfb1eb0-477d-4b7c-9848-0c4c7cf5a789

Test message

Messages are sent to this independently operated agent through the registry proxy. Do not include secrets or personal data.

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