Plan updated with the alknet-tty findings: the drainer pattern (single ordered writer) makes outbound chunk-boundary parsing sound; TestStdinSink's try_send→Full→Pending is the inbound backpressure precedent; OQ-01(a) now cites the reference. Task graph (taskgraph-validated, 17 tasks, 6 generations, no cycles): - tasks/server/: core-types, auth, healthz-decoy, adapter - tasks/gateway/: dispatch, routes, publish - tasks/websocket/: byte-adapter (research POC), upgrade-session, overlay-ops - tasks/adapters/: from-openapi, from-jsonschema, to-openapi, from-wss, mcp - tasks/client/: http-host - tasks/infra/: integration-suite (phase 4) Critical path runs through server core → adapter → WS session → overlay tests → integration suite. High-risk tasks are the three WS tasks, de-risked by the ws-byte-adapter POC blocking upgrade-session.
45 lines
1.6 KiB
Markdown
45 lines
1.6 KiB
Markdown
---
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id: adapter-mcp
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name: from_mcp + to_mcp (mcp feature)
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status: pending
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depends_on: [client-http-host, gateway-routes]
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scope: broad
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risk: medium
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impact: component
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level: implementation
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tags: [adapters, mcp, phase-3]
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---
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## Description
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Port both MCP adapters from
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`/workspace/@alkdev/alknet/crates/alknet-http/src/adapters/{from_mcp/`,
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`to_mcp.rs}` behind the `mcp` feature (rmcp, streamable HTTP only —
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ADR-037). from_mcp: tools/list discovery, per-tool HandlerRegistration
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(Mutation, HandlerKind::Once, FromMCP leaf), structuredContent-preferred
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output handling, ContentBlock-union fallback, isError→CallError.
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to_mcp: 4 fixed gateway tools (search/schema/call/batch — Sub AND Pub
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excluded), StreamableHttpService into axum under /mcp with bearer
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middleware. Shared dispatch spine with to_openapi via GatewayDispatch.
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## Acceptance Criteria
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- [ ] Both adapters behind `mcp`; default features compile without rmcp
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- [ ] from_mcp round-trip against a mock MCP server (tools/list, tools/call, structured + content-block outputs)
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- [ ] to_mcp: 4 tools listed; call dispatch filtered by ACL; Pub/Sub ops excluded
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- [ ] stdio transport not present anywhere (dependency audit)
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- [ ] `cargo test --all-features` passes
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## References
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- docs/architecture/http-mcp.md
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- docs/architecture/decisions/037-mcp-stdio-transport-exclusion.md, 041-mcp-tool-gateway-pattern.md
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- Old source: `/workspace/@alkdev/alknet/crates/alknet-http/src/adapters/from_mcp/`, `to_mcp.rs`, `tests/from_mcp_integration.rs`
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## Notes
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> Agent fills during implementation.
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## Summary
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> Agent fills on completion. |