built-on-envoy/extensions/composer/llm-proxy/config.schema.json at ea068f281f371c1922e863db340c3321f0d2fdb1 · tetratelabs/built-on-envoy · GitHub

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{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/tetratelabs/built-on-envoy/extensions/composer/llm-proxy/config.schema.json",
  "title": "LLM Proxy Configuration",
  "description": "Configuration for the LLM Proxy extension. Routes LLM API requests by model name and monitors token usage via Envoy metadata.",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "llm_configs": {
      "type": "array",
      "description": "Path-matcher rules mapping request paths to LLM API kinds. If empty, default rules for OpenAI and Anthropic are auto-configured.",
      "items": {
        "type": "object",
        "required": ["matcher", "kind"],
        "additionalProperties": false,
        "properties": {
          "matcher": {
            "$ref": "#/$defs/StringMatcher",
            "description": "Path matcher for this rule."
          },
          "kind": {
            "type": "string",
            "description": "LLM API kind for matched requests.",
            "enum": ["openai", "anthropic", "custom"]
          }
        }
      }
    },
    "metadata_namespace": {
      "type": "string",
      "description": "Filter metadata namespace for LLM proxy data. Defaults to \"io.builtonenvoy.llm-proxy\"."
    },
    "llm_model_header": {
      "type": "string",
      "description": "Request header to set with the extracted model name."
    },
    "use_default_attributes": {
      "type": "boolean",
      "description": "Emit the full built-in structured log payload."
    },
    "use_default_response_attributes": {
      "type": "boolean",
      "description": "Emit the lightweight built-in structured log payload."
    },
    "session_id_header": {
      "type": "string",
      "description": "Optional request header used to extract a session or conversation ID."
    },
    "clear_route_cache": {
      "type": "boolean",
      "description": "Clear Envoy route cache after setting metadata, enabling route re-selection. Defaults to false."
    }
  },
  "$defs": {
    "StringMatcher": {
      "type": "object",
      "description": "Matches a string by prefix, suffix, or regex. Exactly one must be set.",
      "additionalProperties": false,
      "properties": {
        "prefix": {
          "type": "string",
          "description": "Match strings starting with this value."
        },
        "suffix": {
          "type": "string",
          "description": "Match strings ending with this value."
        },
        "regex": {
          "type": "string",
          "description": "Match strings satisfying this regular expression."
        }
      },
      "oneOf": [
        { "required": ["prefix"] },
        { "required": ["suffix"] },
        { "required": ["regex"] }
      ]
    }
  }
}