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Specify request/response queues

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Cyber MacGeddon 2026-03-04 14:25:06 +00:00
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38
docs/tech-specs/tool-services.md
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@ -62,13 +62,14 @@ elif impl_id == "text-completion":
#### Tier 1: Tool Service Descriptor
A tool service defines a Pulsar service interface. It declares:
- The topic to call
- The Pulsar queues for request/response
- Configuration parameters it requires from tools that use it
```json
{
"id": "custom-rag",
"topic": "custom-rag-request",
"request-queue": "non-persistent://tg/request/custom-rag",
"response-queue": "non-persistent://tg/response/custom-rag",
"config-params": [
{"name": "collection", "required": true}
]
@ -80,7 +81,8 @@ A tool service that needs no configuration parameters:
```json
{
"id": "calculator",
"topic": "calc-request",
"request-queue": "non-persistent://tg/request/calc",
"response-queue": "non-persistent://tg/response/calc",
"config-params": []
}
```
@ -199,16 +201,18 @@ Requests and responses use untyped dicts. No schema validation at the agent leve
### Client Interface: Direct Pulsar Topics
Tool services use direct Pulsar topics without requiring flow configuration:
Tool services use direct Pulsar topics without requiring flow configuration. The tool-service descriptor specifies the full queue names:
- **Request Topic**: `non-persistent://tg/request/{topic}`
- **Response Topic**: `non-persistent://tg/response/{topic}`
```json
{
"id": "joke-service",
"request-queue": "non-persistent://tg/request/joke",
"response-queue": "non-persistent://tg/response/joke",
"config-params": [...]
}
```
Where `{topic}` comes from the tool-service descriptor. For example, a service with `"topic": "joke"` uses:
- `non-persistent://tg/request/joke`
- `non-persistent://tg/response/joke`
This avoids the complexity of flow blueprints and allows services to be deployed independently.
This allows services to be hosted in any namespace.
### Error Handling: Standard Error Convention
@ -295,8 +299,7 @@ class DynamicToolService(AsyncProcessor):
def __init__(self, **params):
topic = params.get("topic", default_topic)
request_topic = f"non-persistent://tg/request/{topic}"
response_topic = f"non-persistent://tg/response/{topic}"
# Constructs topics: non-persistent://tg/request/{topic}, non-persistent://tg/response/{topic}
# Sets up Consumer and Producer
async def invoke(self, user, config, arguments):
@ -310,8 +313,8 @@ Implementation in `trustgraph-flow/trustgraph/agent/react/tools.py`:
```python
class ToolServiceImpl:
def __init__(self, context, service_topic, config_values, arguments, processor):
# Constructs topic paths: non-persistent://tg/request/{topic}, non-persistent://tg/response/{topic}
def __init__(self, context, request_queue, response_queue, config_values, arguments, processor):
# Uses the provided queue paths directly
# Creates ToolServiceClient on first use
async def invoke(self, **arguments):
@ -326,7 +329,7 @@ Two config sections:
```
tool-service/
joke-service: {"id": "joke-service", "topic": "joke", "config-params": [...]}
joke-service: {"id": "joke-service", "request-queue": "non-persistent://tg/request/joke", "response-queue": "non-persistent://tg/response/joke", "config-params": [...]}
tool/
tell-joke: {"type": "tool-service", "service": "joke-service", ...}
@ -359,7 +362,8 @@ Tool service config:
```json
{
"id": "joke-service",
"topic": "joke",
"request-queue": "non-persistent://tg/request/joke",
"response-queue": "non-persistent://tg/response/joke",
"config-params": [{"name": "style", "required": false}]
}
```