ACM-68000

{
  "name": "ACM-68000",
  "description": "The seven canonical signals agents resolve against. Append-only, non-breaking, non-substitutable. GS1-anchored. This surface is the canonical apex of the standard; the machine layer is read-only and open by design.",
  "supportedInterfaces": [
    {
      "url": "https://acm-68000.org/",
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "1.0"
    }
  ],
  "provider": {
    "url": "https://gsc-em.com",
    "organization": "GreenCore Solutions Corp."
  },
  "version": "2.0.0",
  "documentationUrl": "https://acm-68000.org/llms.txt",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extensions": [
      {
        "uri": "https://gsc-em.com/a2a/ext/scope-of-authority/v1",
        "description": "GSC scope of authority: read, resolve and discovery calls are autonomous; every transactional commit is human-signed at the GSC Navigator HITL boundary.",
        "required": false,
        "params": {
          "autonomous": [
            "read",
            "resolve",
            "discover"
          ],
          "humanSigned": [
            "transactional-commit",
            "order",
            "rfq-acceptance",
            "terms"
          ],
          "hitlBoundary": "https://gsc-navigator.ai/",
          "transactionSurface": "https://mcp.cpghumanintheloop.ai/mcp"
        }
      },
      {
        "uri": "https://gsc-em.com/a2a/ext/enforcement-posture/v1",
        "description": "These endpoints are open by design. When the buy side's credential standard reaches GA \u2014 expected Q4 2026-Q1 2027 \u2014 transactional methods migrate to OAuth 2.1 challenge per the MCP 2025-11-25 specification. Read access stays open. That is not pending work; that is the published plan.",
        "required": false,
        "params": {
          "enforcement_posture": "open-by-declaration",
          "migration_standard": "OAuth 2.1 + PKCE challenge (401 + WWW-Authenticate) on mcp:transact methods, per MCP spec 2025-11-25",
          "migration_trigger": "ecosystem GA of credentialed counterparties (enterprise A2A/MCP buy-side GA)",
          "migration_window": "Q4 2026 - Q1 2027",
          "declared": "2026-08-24",
          "operator": "GreenCore Solutions Corp.",
          "duns": "24-336-6774"
        }
      }
    ]
  },
  "securitySchemes": {
    "entraOAuth2": {
      "oauth2SecurityScheme": {
        "description": "Microsoft Entra OAuth 2.0 client credentials, GSC-provisioned after human review. Public reads on this surface are open by design; tokens are required where commitments are made.",
        "flows": {
          "clientCredentials": {
            "tokenUrl": "https://login.microsoftonline.com/54939635-2f2e-465a-8526-a907cb3c8ebd/oauth2/v2.0/token",
            "scopes": {
              "acm:read": "Read the ACM-68000 canonical text and machine surfaces."
            }
          }
        },
        "oauth2MetadataUrl": "https://acm-68000.org/.well-known/oauth-authorization-server"
      }
    },
    "bearerJwt": {
      "httpAuthSecurityScheme": {
        "scheme": "Bearer",
        "bearerFormat": "JWT",
        "description": "Bearer access token presented in the Authorization header."
      }
    }
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/markdown",
    "text/html"
  ],
  "skills": [
    {
      "id": "seven-signals",
      "name": "The seven signals",
      "description": "The seven canonical ACM-68000 signals with states and GS1 GTINs: GET https://acm-68000.org/signals.json",
      "tags": [
        "acm-68000",
        "signals",
        "standards"
      ]
    },
    {
      "id": "signal-resolution",
      "name": "Signal resolution",
      "description": "Resolve a GSC-registered GTIN to its ACM-68000 signal on the live resolver: GET https://mcp.cpgknowledgegraph.ai/resolve?gtin=00990832300341",
      "tags": [
        "acm-68000",
        "resolve",
        "gtin"
      ]
    },
    {
      "id": "standards-reference",
      "name": "Standards reference",
      "description": "The canonical ACM-68000 text and machine surfaces: https://acm-68000.org/llms.txt \u00b7 https://acm-68000.org/protocol.json",
      "tags": [
        "standards",
        "reference"
      ]
    }
  ],
  "signatures": [
    {
      "protected": "eyJhbGciOiJFUzI1NiIsImtpZCI6ImdzYy1jYXJkcy0yMDI2LTA4In0",
      "signature": "jN1q4oPS_wp3aXyd1-3mHhUhq9oeDFkqSestGmxX2Qa1lSaYCWo4CIjOgGf0NcMczn_DexfqApEqJMTkPr8cBA"
    }
  ]
}