Agent Preflight
Budgeted agent preflight: allow|block|reuse|defer|advise. Never executes destination tools. Free MCP
Sollte ich dies verwenden
Qualität und Sicherheit
A
Befunde (2)
- HIGHTool poisoning patterns detected
- MEDIUMTool description contains URL to non-standard domainin preflight_tool_call
Basierend auf einer automatisierten Analyse der Tool-Definitionen und der Einhaltung des Protokolls.
Kontextkosten
~1,698Tokens (Tool-Definitionen)
~9.0 KBTypische Antwortgröße
Mittlere Auswirkung auf die Aufmerksamkeit (1.33% von 128k Kontext)
Dies ist die ungefähre Anzahl der Tokens, die jedes Mal verbraucht werden, wenn die Tools des Servers in den Kontext eines Modells geladen werden. Höhere Werte verringern die Aufmerksamkeit, die für andere Aufgaben verfügbar ist.
Installieren
Installation mit einem Klick
Fügen Sie dies Ihrer Datei `claude_desktop_config.json` hinzu:
{
"mcpServers": {
"agent-preflight": {
"url": "https://api.agent-preflight.com/mcp"
}
}
}Remote-Endpunkte
https://api.agent-preflight.com/mcpstreamable-httpWas es kann
Tool-Inventar
Tools (2)
🟢 Nur lesen🟡 Schreiben🔴 Löschen⚪ Unbekannt
🟢check_request(request, schema, economics)
Validate an HTTP API request body against a supplied JSON Schema before sending it. This tool does not execute the request. Use it when an agent needs to determine whether a proposed JSON body satisfies its expected schema. Optional economics adds proceed/abort advice from expected waste versus a $0.001 check.
Eingabe-Schema
{
"type": "object",
"properties": {
"request": {
"type": "object",
"properties": {
"method": {
"type": "string",
"description": "HTTP method of the proposed request"
},
"url": {
"type": "string",
"description": "Absolute http(s) URL. This tool never fetches the URL."
},
"headers": {
"description": "HTTP headers as string key/value pairs",
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"type": "string"
}
},
"query": {
"description": "Query parameters",
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
},
"body": {
"description": "JSON body checked against schema"
}
},
"required": [
"method",
"url"
]
},
"schema": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {},
"description": "JSON Schema applied to request.body"
},
"economics": {
"description": "Optional V0.2 cost context. Omit for V0.1 validation-only output.",
"type": "object",
"properties": {
"downstreamCostUsd": {
"type": "number",
"minimum": 0,
"description": "USD cost of the target API attempt or success"
},
"billsOnInvalidRequest": {
"type": "boolean",
"description": "True when the target API charges or consumes quota on 4xx"
},
"retryCostUsd": {
"type": "number",
"minimum": 0,
"description": "USD model/tool-turn cost of one failed attempt"
},
"priorInvalidProbability": {
"description": "Prior probability the payload is doomed. Default 0.25",
"type": "number",
"minimum": 0,
"maximum": 1
},
"preflightPriceUsd": {
"description": "Price of this check. Default 0.001",
"type": "number",
"minimum": 0
},
"budgetRemainingUsd": {
"description": "Remaining agent budget. Checks above this are not +EV",
"type": "number",
"minimum": 0
}
},
"required": [
"downstreamCostUsd",
"billsOnInvalidRequest",
"retryCostUsd"
]
}
},
"required": [
"request",
"schema"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}Ausgabe-Schema
{
"type": "object",
"properties": {
"valid": {
"type": "boolean"
},
"errors": {
"type": "array",
"items": {
"type": "object",
"properties": {
"path": {
"type": "string"
},
"code": {
"type": "string"
},
"message": {
"type": "string"
}
},
"required": [
"path",
"code",
"message"
],
"additionalProperties": false
}
},
"warnings": {
"type": "array",
"items": {
"type": "object",
"properties": {
"path": {
"type": "string"
},
"code": {
"type": "string"
},
"message": {
"type": "string"
}
},
"required": [
"path",
"code",
"message"
],
"additionalProperties": false
}
},
"requestHash": {
"type": "string"
},
"economics": {
"type": "object",
"properties": {
"decision": {
"type": "string",
"enum": [
"proceed",
"abort"
]
},
"reason": {
"type": "string",
"enum": [
"valid",
"invalid_doomed_request"
]
},
"preflightPriceUsd": {
"type": "number"
},
"wasteIfSentUsd": {
"type": "number"
},
"realizedNetUsd": {
"type": "number"
},
"worthCheckingAPriori": {
"type": "boolean"
},
"aPrioriExpectedWasteUsd": {
"type": "number"
},
"aPrioriExpectedNetUsd": {
"type": "number"
}
},
"required": [
"decision",
"reason",
"preflightPriceUsd",
"wasteIfSentUsd",
"realizedNetUsd",
"worthCheckingAPriori",
"aPrioriExpectedWasteUsd",
"aPrioriExpectedNetUsd"
],
"additionalProperties": false
}
},
"required": [
"valid",
"errors",
"warnings",
"requestHash"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}🟢preflight_tool_call(runId, stepId, tool, budget, task, ...)
Free MCP decision for generic search:web_search or browse:fetch proposals only. Returns structuredContent and JSON text, never destination results. Caller supplies cost estimates, post-consultation budget and history, executes tools and retrieves resultReference itself. Reuse requires explicit permission, positive TTL and matching nonempty goal hashes; history must belong to the caller. estimated fees/savings are hypothetical, not receipts; confidence is not calibrated. Paid HTTP is a separate $0.001 per settled POST interface. Full contract: https://agent-preflight.com/docs
Eingabe-Schema
{
"type": "object",
"properties": {
"runId": {
"type": "string"
},
"stepId": {
"type": "string"
},
"tool": {
"type": "object",
"properties": {
"provider": {
"type": "string"
},
"operation": {
"type": "string"
},
"request": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {}
},
"estimatedExternalCostUsd": {
"type": "number",
"minimum": 0
},
"estimatedModelCostUsd": {
"type": "number",
"minimum": 0
}
},
"required": [
"provider",
"operation",
"request",
"estimatedExternalCostUsd"
]
},
"budget": {
"type": "object",
"properties": {
"remainingUsd": {
"type": "number",
"minimum": 0
},
"reservedUsd": {
"type": "number",
"minimum": 0
},
"maxToolCallsRemaining": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"required": [
"remainingUsd"
]
},
"task": {
"type": "object",
"properties": {
"goalHash": {
"type": "string"
}
},
"required": [
"goalHash"
]
},
"history": {
"type": "array",
"items": {
"type": "object",
"properties": {
"toolCallId": {
"type": "string"
},
"fingerprint": {
"type": "string"
},
"outcome": {
"type": "string",
"enum": [
"success",
"terminal_failure",
"transient_failure"
]
},
"resultReference": {
"type": "string"
},
"ageSeconds": {
"type": "number",
"minimum": 0
},
"goalHash": {
"type": "string"
}
},
"required": [
"toolCallId",
"fingerprint",
"outcome",
"ageSeconds"
]
}
},
"capabilities": {
"type": "object",
"properties": {
"canReusePriorResult": {
"type": "boolean"
},
"canReduceScope": {
"type": "boolean"
}
}
},
"freshnessTtlSeconds": {
"type": "number",
"minimum": 0
},
"retryCap": {
"type": "integer",
"minimum": 1,
"maximum": 9007199254740991
},
"preflightPriceUsd": {
"type": "number",
"minimum": 0
}
},
"required": [
"runId",
"stepId",
"tool",
"budget"
],
"$schema": "https://json-schema.org/draft/2020-12/schema"
}Ausgabe-Schema
{
"type": "object",
"properties": {
"decision": {
"type": "string",
"enum": [
"allow",
"block",
"reuse",
"defer",
"advise"
]
},
"enforcement": {
"type": "string",
"enum": [
"execute",
"safe_to_skip",
"advisory"
]
},
"reasonCodes": {
"type": "array",
"items": {
"type": "string"
}
},
"issues": {
"type": "array",
"items": {
"type": "object",
"properties": {
"path": {
"type": "string"
},
"code": {
"type": "string"
},
"message": {
"type": "string"
}
},
"required": [
"path",
"code",
"message"
],
"additionalProperties": false
}
},
"requestFingerprint": {
"description": "SHA-256 of version-2 exact proposal; absent on invalid input",
"type": "string"
},
"matchedCallId": {
"type": "string"
},
"estimated": {
"type": "object",
"properties": {
"preflightCostUsd": {
"type": "number"
},
"priceChargedUsd": {
"type": "number",
"description": "Modeled fee, not a settlement receipt"
},
"avoidableExternalCostUsd": {
"type": "number"
},
"avoidableModelCostUsd": {
"type": "number"
},
"netSavingsUsd": {
"type": "number"
},
"billable": {
"type": "boolean",
"description": "Modeled actionable status; MCP is unpaid"
},
"confidence": {
"type": "number",
"description": "Rule constant, not a calibrated probability"
}
},
"required": [
"preflightCostUsd",
"priceChargedUsd",
"avoidableExternalCostUsd",
"avoidableModelCostUsd",
"netSavingsUsd",
"billable",
"confidence"
],
"additionalProperties": false
},
"recommendation": {
"type": "object",
"properties": {
"action": {
"type": "string"
},
"resultReference": {
"type": "string"
}
},
"required": [
"action"
],
"additionalProperties": false
}
},
"required": [
"decision",
"enforcement",
"reasonCodes",
"issues"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}Community
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