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.
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id, name, status, depends_on, scope, risk, impact, level, tags
| id | name | status | depends_on | scope | risk | impact | level | tags | ||
|---|---|---|---|---|---|---|---|---|---|---|
| client-http-host | Shared reqwest client host (middleware stack, retry-after) | pending | narrow | low | component | implementation |
|
Description
Port the outbound HTTP client host from
/workspace/@alkdev/alknet/crates/alknet-http/src/client/:
ClientWithMiddleware shared across forwarding handlers;
RetryTransientMiddleware (exponential backoff) + inlined
RetryAfterMiddleware (parse Retry-After on 429/503, bounded URL→time
map); ArcSwap rebuild-and-swap for config hot-reload. Credential
injection is per-request from OperationContext.capabilities — never at
client construction, never from env vars.
Acceptance Criteria
- Client host ported with the middleware stack; inlined Retry-After (bounded storage)
- ArcSwap hot-swap tested (config change → new pool)
- No env-var reads (invariant test)
cargo testpasses
References
- docs/architecture/http-adapters.md (§HTTP client (reqwest))
- Old source:
/workspace/@alkdev/alknet/crates/alknet-http/src/client/{http_client,retry_after}.rs
Notes
Agent fills during implementation.
Summary
Agent fills on completion.