docs(http): draft alknet-http architecture specs and ADRs 036-039
First speccing pass for alknet-http (HTTP interface crate: h2/http1.1/h3
server + from_openapi/to_openapi/from_mcp/to_mcp adapters).
Specs (crates/http/):
- README.md, overview.md — crate index, two-roles-in-one-crate framing,
adapter location map, feature gates (h3, mcp), no-env-vars invariant
- http-server.md — HttpAdapter for h2/http1.1, axum over QUIC stream,
Bearer auth, SSE projection for subscriptions, /healthz, stealth decoy
- http-adapters.md — from_openapi (reqwest) and to_openapi (projection),
error fidelity (HTTP_<status> per ADR-023), type definitions
- http-mcp.md — from_mcp/to_mcp (feature-gated), streamable-HTTP-only
- webtransport.md — h3/WebTransport handler, browser streaming path,
HTTP/3 request vs WebTransport session distinguished at framing layer
ADRs:
- ADR-036 HTTP-to-Call Operation Mapping (Proposed) — direct path
mapping; to_openapi is projection, not router (the load-bearing one-way
door from Phase 0 DH-3)
- ADR-037 MCP Stdio Transport Exclusion (Proposed) — streamable HTTP
only; stdio is not built (RCE-vector security position)
- ADR-038 HTTP/3 and WebTransport as First-Class HTTP Transports
(Proposed) — corrects the Phase 0 DH-2 deferral framing; h3 is in
scope, not deferred, per ADR-009 §'What this framework is NOT'
- ADR-039 HTTP Server and Client Host Colocated in alknet-http
(Proposed) — one crate for server + client host (shared HTTP deps,
shared operation-spec->HTTP mapping)
- ADR-003 Amendment 1 — clarifies alknet-call is a protocol-foundation
crate (the alknet-http -> alknet-call dependency edge)
Open questions (OQ-38, OQ-39, OQ-40 added under 'Theme: alknet-http'):
- OQ-38 WebTransport relay-as-proxy scope (genuine scope question, not
a deferral — the decision is made when the use case becomes concrete)
- OQ-39 to_openapi published-spec versioning (one-way after first
publication)
- OQ-40 reqwest client config and connection pooling (two-way-door)
Architecture README and overview updated with doc table, ADR table
(036-039), current-state note, and crate graph (alknet-http ->
alknet-call edge).
Reviewed by architecture-reviewer subagent: 3 critical, 4 warning, 5
suggestion issues found and fixed (missing ADR-039, WebTransport stream
routing conflation, undefined types, stale OQ-37 deferral language,
README OQ table completeness, Bearer-only attribution, cross-references,
ADR-038 ALPN quote, feature-gate placeholder, MCP temporal language).
glm-5.2
ab47dac4ad