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OpenQASM 3 preflight

quantum_openqasm3_preflight_v1
Idempotent

Problem: Parse, normalize, and assess OpenQASM 3 before downstream execution. Input: JSON with source. Result: go, no-go, or unsupported verdict, normalized source, warnings and evidence. Limits: Local software evidence only; 3 verification qubits; 65536 source bytes.

Input Schema

NameRequiredDescriptionDefault
requestYes
schema_versionYes
idempotency_keyYes
max_total_priceYes

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "capability_id": {
      -        "maxLength": 128,
      -        "minLength": 1,
      -        "pattern": "^[a-z0-9][a-z0-9._-]*$",
      -        "type": "string"
      -      },
      -      "capability_version": {
      -        "maxLength": 64,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "catalog_digest": {
      -        "pattern": "^[a-f0-9]{64}$",
      -        "type": "string"
      -      },
      -      "catalog_revision": {
      -        "maxLength": 128,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "commercial_state": {
      -        "maxLength": 64,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "duplicate": {
      -        "type": "boolean"
      -      },
      -      "job_id": {
      -        "maxLength": 256,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "payment_rail": {
      -        "const": "x402",
      -        "type": "string"
      -      },
      -      "price": {
      -        "pattern": "^(?:0|[1-9]\\d{0,13})(?:\\.\\d{1,6})?$",
      -        "type": "string"
      -      },
      -      "product": {
      -        "enum": [
      -          "wave",
      -          "quantum",
      -          "robotics"
      -        ],
      -        "type": "string"
      -      },
      -      "quote_id": {
      -        "format": "uuid",
      -        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      -        "type": "string"
      -      },
      -      "request_hash": {
      -        "pattern": "^[a-f0-9]{64}$",
      -        "type": "string"
      -      },
      -      "request_schema_version": {
      -        "maxLength": 128,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "reservation_id": {
      -        "format": "uuid",
      -        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      -        "type": "string"
      -      },
      -      "retrieval_token": {
      -        "pattern": "^rqm_retrieval_.*",
      -        "type": "string"
      -      },
      -      "retrieval_token_expires_in": {
      -        "exclusiveMinimum": 0,
      -        "maximum": 9007199254740991,
      -        "type": "integer"
      -      },
      -      "retrieval_url": {
      -        "format": "uri",
      -        "type": "string"
      -      },
      -      "schema_version": {
      -        "const": "rqm.jobs.buyer-job-run.v1",
      -        "type": "string"
      -      },
      -      "status": {
      -        "enum": [
      -          "queued",
      -          "running",
      -          "completed",
      -          "failed",
      -          "cancelled",
      -          "recovery"
      -        ],
      -        "type": "string"
      -      },
      -      "tariff_version": {
      -        "maxLength": 64,
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "x402_settlement_id": {
      -        "format": "uuid",
      -        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      -        "type": "string"
      -      },
      -      "x402_transaction_id": {
      -        "maxLength": 256,
      -        "minLength": 1,
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "schema_version",
      -      "product",
      -      "capability_id",
      -      "capability_version",
      -      "request_schema_version",
      -      "catalog_revision",
      -      "catalog_digest",
      -      "request_hash",
      -      "job_id",
      -      "status",
      -      "quote_id",
      -      "reservation_id",
      -      "commercial_state",
      -      "payment_rail",
      -      "price",
      -      "tariff_version",
      -      "x402_settlement_id",
      -      "x402_transaction_id",
      -      "retrieval_token",
      -      "retrieval_token_expires_in",
      -      "duplicate"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "code": {
      -        "enum": [
      -          "AUTHENTICATION_REQUIRED",
      -          "MACHINE_AUTHENTICATION_FAILED",
      -          "MACHINE_AUTHORIZATION_FAILED",
      -          "ACCOUNT_CORE_UNAVAILABLE",
      -          "FEATURE_DISABLED",
      -          "QUOTE_NOT_ENTITLED",
      -          "QUOTE_IDEMPOTENCY_CONFLICT",
      -          "QUOTE_NOT_AVAILABLE",
      -          "QUOTE_REQUEST_INVALID",
      -          "QUOTE_MISMATCH",
      -          "PRICE_LIMIT_EXCEEDED",
      -          "RUNTIME_LIMIT_EXCEEDED",
      -          "ARTIFACT_PREFERENCE_UNAVAILABLE",
      -          "INSUFFICIENT_BALANCE",
      -          "RESERVATION_FAILED",
      -          "PRODUCT_REJECTED",
      -          "PRODUCT_UNAVAILABLE",
      -          "JOB_NOT_FOUND",
      -          "JOB_NOT_READY",
      -          "JOB_ACCESS_DENIED",
      -          "SETTLEMENT_FAILED",
      -          "FUNDING_UNAVAILABLE",
      -          "FUNDING_FAILED"
      -        ],
      -        "type": "string"
      -      },
      -      "message": {
      -        "type": "string"
      -      },
      -      "retryable": {
      -        "type": "boolean"
      -      },
      -      "schema_version": {
      -        "const": "rqm.jobs.error.v1",
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "schema_version",
      -      "code",
      -      "message",
      -      "retryable"
      -    ],
      -    "type": "object"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "capability_id": {
      +        "maxLength": 128,
      +        "minLength": 1,
      +        "pattern": "^[a-z0-9][a-z0-9._-]*$",
      +        "type": "string"
      +      },
      +      "capability_version": {
      +        "maxLength": 64,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "catalog_digest": {
      +        "pattern": "^[a-f0-9]{64}$",
      +        "type": "string"
      +      },
      +      "catalog_revision": {
      +        "maxLength": 128,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "commercial_state": {
      +        "maxLength": 64,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "duplicate": {
      +        "type": "boolean"
      +      },
      +      "job_id": {
      +        "maxLength": 256,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "payment_rail": {
      +        "const": "x402",
      +        "type": "string"
      +      },
      +      "price": {
      +        "pattern": "^(?:0|[1-9]\\d{0,13})(?:\\.\\d{1,6})?$",
      +        "type": "string"
      +      },
      +      "product": {
      +        "enum": [
      +          "wave",
      +          "quantum",
      +          "robotics"
      +        ],
      +        "type": "string"
      +      },
      +      "quote_id": {
      +        "format": "uuid",
      +        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      +        "type": "string"
      +      },
      +      "request_hash": {
      +        "pattern": "^[a-f0-9]{64}$",
      +        "type": "string"
      +      },
      +      "request_schema_version": {
      +        "maxLength": 128,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "reservation_id": {
      +        "format": "uuid",
      +        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      +        "type": "string"
      +      },
      +      "retrieval_token": {
      +        "format": "starts_with",
      +        "pattern": "^rqm_retrieval_.*",
      +        "type": "string"
      +      },
      +      "retrieval_token_expires_in": {
      +        "exclusiveMinimum": 0,
      +        "maximum": 9007199254740991,
      +        "type": "integer"
      +      },
      +      "retrieval_url": {
      +        "format": "uri",
      +        "type": "string"
      +      },
      +      "schema_version": {
      +        "const": "rqm.jobs.buyer-job-run.v1",
      +        "type": "string"
      +      },
      +      "status": {
      +        "enum": [
      +          "queued",
      +          "running",
      +          "completed",
      +          "failed",
      +          "cancelled",
      +          "recovery"
      +        ],
      +        "type": "string"
      +      },
      +      "tariff_version": {
      +        "maxLength": 64,
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "x402_settlement_id": {
      +        "format": "uuid",
      +        "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
      +        "type": "string"
      +      },
      +      "x402_transaction_id": {
      +        "maxLength": 256,
      +        "minLength": 1,
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "schema_version",
      +      "product",
      +      "capability_id",
      +      "capability_version",
      +      "request_schema_version",
      +      "catalog_revision",
      +      "catalog_digest",
      +      "request_hash",
      +      "job_id",
      +      "status",
      +      "quote_id",
      +      "reservation_id",
      +      "commercial_state",
      +      "payment_rail",
      +      "price",
      +      "tariff_version",
      +      "x402_settlement_id",
      +      "x402_transaction_id",
      +      "retrieval_token",
      +      "retrieval_token_expires_in",
      +      "duplicate"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "code": {
      +        "enum": [
      +          "AUTHENTICATION_REQUIRED",
      +          "MACHINE_AUTHENTICATION_FAILED",
      +          "MACHINE_AUTHORIZATION_FAILED",
      +          "ACCOUNT_CORE_UNAVAILABLE",
      +          "FEATURE_DISABLED",
      +          "QUOTE_NOT_ENTITLED",
      +          "QUOTE_IDEMPOTENCY_CONFLICT",
      +          "QUOTE_NOT_AVAILABLE",
      +          "QUOTE_REQUEST_INVALID",
      +          "QUOTE_MISMATCH",
      +          "PRICE_LIMIT_EXCEEDED",
      +          "RUNTIME_LIMIT_EXCEEDED",
      +          "ARTIFACT_PREFERENCE_UNAVAILABLE",
      +          "INSUFFICIENT_BALANCE",
      +          "RESERVATION_FAILED",
      +          "PRODUCT_REJECTED",
      +          "PRODUCT_UNAVAILABLE",
      +          "JOB_NOT_FOUND",
      +          "JOB_NOT_READY",
      +          "JOB_ACCESS_DENIED",
      +          "SETTLEMENT_FAILED",
      +          "FUNDING_UNAVAILABLE",
      +          "FUNDING_FAILED"
      +        ],
      +        "type": "string"
      +      },
      +      "message": {
      +        "type": "string"
      +      },
      +      "retryable": {
      +        "type": "boolean"
      +      },
      +      "schema_version": {
      +        "const": "rqm.jobs.error.v1",
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "schema_version",
      +      "code",
      +      "message",
      +      "retryable"
      +    ],
      +    "type": "object"
      +  }
      +]
  2. First observed

TDQS

B3.1/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The Limits sentence adds real context beyond annotations — local software evidence only, 3 verification qubits, 65536-byte cap — which the agent could not derive from the schema. However, readOnlyHint=false combined with required max_total_price and idempotency_key signals a paid job submission, and the description never mentions cost, quoting, or idempotency semantics, which is the most consequential behavior of this tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The Problem/Input/Result/Limits framing front-loads purpose and constraints with no filler. Every clause carries information, though the telegraphic style sacrifices some connective clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The output schema justifies skipping return-value detail, and the Limitations line is a genuine plus. But for a tool that consumes a price ceiling and idempotency key, the description omits pricing, retry/idempotency behavior, and the request payload contract — significant gaps at 0% schema coverage with nested objects.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0% and all four parameters are required, yet the description only says 'Input: JSON with source'. The required schema_version const, idempotency_key pattern, and especially max_total_price (a fixed '0.010000' price ceiling) are undocumented in both schema and description. The nested, untyped 'request' object leaves the actual QASM payload shape entirely to guesswork.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb set and resource: 'Parse, normalize, and assess OpenQASM 3 before downstream execution', which distinguishes it from siblings like repair_openqasm3 or optimize_quantum_circuit. It does not explicitly name the sibling it is not, so an agent must infer the boundary from the 'preflight' framing.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The phrase 'before downstream execution' implies when to call it, but there is no explicit guidance on when to use it versus quantum_openqasm3_repair_v1 (for broken source) or check_quantum_circuit. The 'unsupported verdict' hint suggests a fallback path but never says what to do next.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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