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feat(mcp-tool): wire McpToolService into deploy stack

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Three pieces, all required for an end-to-end MCP tool call:

* McpToolService used generic spec names "request"/"response" instead of
  "mcp-tool-request"/"mcp-tool-response", so RequestResponseSpec's
  flow-config topic lookup never matched and consumers bound to literal
  subjects nobody else publishes to.

* Add entrypoints/mcp-tool.mjs (mirrors agent/librarian entrypoints) so
  the service can be launched in the prebuilt trustgraph-ts image.

* Add a `mcp-tool` service block to deploy/docker-compose.yml.

With these three fixes plus a `mcp-tool-request`/`mcp-tool-response`
entry in each flow's topics map, the agent ReAct loop can now invoke
remote MCP tools (verified end-to-end against Brave Search and FireCrawl).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
elpresidank 2026-05-01 22:16:37 -05:00
parent 4c356cd24c
commit 6ac5446a76
3 changed files with 21 additions and 3 deletions
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6
ts/packages/flow/src/agent/mcp-tool/service.ts
View file

@ -36,9 +36,9 @@ export class McpToolService extends FlowProcessor {
super(config);
this.registerSpecification(
new ConsumerSpec<ToolRequest>("request", this.onRequest.bind(this)),
new ConsumerSpec<ToolRequest>("mcp-tool-request", this.onRequest.bind(this)),
);
this.registerSpecification(new ProducerSpec<ToolResponse>("response"));
this.registerSpecification(new ProducerSpec<ToolResponse>("mcp-tool-response"));
this.registerConfigHandler(this.onMcpConfig.bind(this));
}
@ -79,7 +79,7 @@ export class McpToolService extends FlowProcessor {
const requestId = properties.id;
if (!requestId) return;
const responseProducer = flowCtx.flow.producer<ToolResponse>("response");
const responseProducer = flowCtx.flow.producer<ToolResponse>("mcp-tool-response");
try {
const result = await this.invokeTool(