Exactlane Preflight MCP

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "capability_key",
    "snapshot",
    "requirements"
  ],
  "properties": {
    "previous": {
      "type": "object",
      "required": [
        "snapshot",
        "report"
      ],
      "properties": {
        "report": {
          "type": "object",
          "description": "The finished report from the earlier call (structuredContent.report), at most 16 KiB"
        },
        "snapshot": {
          "type": "object",
          "description": "The snapshot that previous.report evaluated"
        },
        "revision_receipt": {
          "type": "object",
          "description": "Optional revision_receipt from an earlier revision-aware call on previous.report"
        }
      },
      "description": "Optional. Makes this a revision-aware check (POST /v0/revision-checks semantics). Send the snapshot and finished report from an earlier check of the same capability_key with identical requirements. Exactlane re-evaluates them instead of trusting the report and never looks up earlier calls. Omit for the ordinary check.",
      "additionalProperties": false
    },
    "snapshot": {
      "type": "object",
      "description": "Caller-provided MCP capability snapshot. No live endpoint is accepted."
    },
    "requirements": {
      "type": "object",
      "description": "Caller workflow requirements using a supported mcp-consumer-fit schema"
    },
    "capability_key": {
      "type": "string",
      "maxLength": 128,
      "minLength": 1,
      "description": "Opaque caller capability key; same contract as POST /v0/capabilities"
    },
    "revision_label": {
      "type": "string",
      "maxLength": 128,
      "minLength": 1,
      "description": "Optional revision label; defaults to mcp-adapter"
    },
    "profile_version": {
      "enum": [
        "0.1",
        "0.2",
        "0.3"
      ],
      "type": "string",
      "description": "Optional mcp-consumer-fit version; inferred from requirements when omitted"
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "report",
    "caller_owns_operational_decision",
    "usage_event_created"
  ],
  "properties": {
    "report": {
      "type": "object",
      "description": "Finished Exactlane check report, substantially unchanged"
    },
    "decision_note": {
      "type": "string"
    },
    "revision_receipt": {
      "type": "object",
      "description": "Present only when previous was supplied: exactlane.revision-receipt/0.1. The global previous-to-current comparison is authoritative; isolated change evaluations report DIRECT_EFFECT_OBSERVED, NO_ISOLATED_EFFECT_OBSERVED or NOT_EVALUATED and cannot rule out interaction effects."
    },
    "usage_event_created": {
      "type": "boolean",
      "const": false,
      "description": "Always false. check_mcp_capability does not POST /v0/usage-events and does not disclose the internal Preview bearer. To attest a client-owned CONTINUE, UPDATE_INTEGRATION, or HOLD decision, use REST POST /v0/usage-events after a finished owned check; report_consumed is required."
    },
    "caller_owns_operational_decision": {
      "type": "boolean",
      "const": true
    }
  },
  "additionalProperties": false
}

{
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}