Files
alknet/docs/architecture/README.md
T
glm-5.2 613bf680cd docs(arch): ConnectionCredentials decouples dial from call protocol (ADR-091) + migration plan cleanups
ADR-091: ConnectionCredentials — decouple the dial credential bundle
from the call protocol. CallCredentials (call-protocol-level, carries
auth_token) was being used as the dial's credential type, coupling the
dial to the call protocol. The auth_token is a hub-layer identity
correlation mechanism (browsers, alknet/register), not a transport
credential. ConnectionCredentials (transport-level: local_identity +
remote_identity) is the dial's credential bundle; all three dial
signatures unify on &ConnectionCredentials; dial_iroh's node_id
parameter is derived from remote_identity.fingerprint. CallCredentials
stays in alknet-call with auth_token. The shape is validated by the
future dial_ssh pattern (russh's check_server_key + authenticate_publickey
consume the same two dimensions).

Amends ADR-089 §3 (dial signatures) and §5 (move consequence), ADR-087
(input framing). Updates client/tls/call/core crate specs and the
extraction plan's Phase 0/3/4/5.

Migration plan cleanups (findings.md):
- Remove duplicated ordering-rationale bullets (copy-paste artifact)
- TL;DR: six phases -> seven (Phase 0 promoted); four compilable
  intermediate states -> each phase leaves workspace compilable
- Remove inline 'Wait — that's 10, not 8' self-correction; fix
  Category B header to (10 tests)
- Replace contradictory line ranges in Net Phase 5 test impact with
  name-based references
- Decide quinn feature fate: removed (not no-op)
- Note webpki-roots always-present per ADR-088 §5 in Phase 1 dep list
2026-07-17 05:56:47 +00:00

370 lines
47 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
---
status: draft
last_updated: 2026-07-16
---
# Alknet Architecture
## Current State
**Client-dial SOCKS5 proxy seam added (ADR-090, 2026-07-16).**
`AlknetClient` (ADR-089) gains an optional SOCKS5 proxy
(`with_socks5_proxy`) so a native client can hide its real IP from the
hub. `dial_quic` routes QUIC through SOCKS5 UDP ASSOCIATE (validated by
the `/workspace/quinn-proxy-poc` PoC and
[`docs/research/quinn-quic-proxy/findings.md`](../research/quinn-quic-proxy/findings.md)
— quinn's `AsyncUdpSocket` + `new_with_abstract_socket` is the
extension point; 5/5 runs clean); `dial_tcp_tls` routes through SOCKS5
CONNECT. The proxy is invisible above the dial (`Connection`,
dispatch, credentials, TLS config all proxy-unaware) and the no-proxy
path is the zero-cost default (the `socks5` feature and `fast-socks5`
dep are opt-in). SOCKS5 is the sole proxy protocol (it covers both TCP
and UDP, so no HTTP CONNECT variant needed). The two distinct SOCKS5
concepts — the client-dial proxy (ADR-090, transport-layer privacy)
and the planned `alknet-socks5` channels data-channel handler (ADR-085
scope table, a service one side offers the other) — compose without
coupling (a client using the hub's `alknet/socks5` service tunnels it
locally and points its `Socks5ProxyConfig` at the local tunnel end).
iroh was the exception: `dial_iroh` did not consume
`Socks5ProxyConfig` — iroh's `proxy_url` covers the relay-exposure
surface, but the direct-connection peer-exposure case was
[OQ-67](open-questions.md) (deferred(unclear) — the pieces existed but
the iroh socket-stack composition wasn't clear; did not block the
first hub deployment, which uses QUIC/TCP+TLS). See
[ADR-090](decisions/090-client-dial-socks5-proxy-seam.md).
**iroh proxy resolved — force relay-only + HTTP-to-SOCKS5 bridge (ADR-090
§5 amended, OQ-67 resolved, 2026-07-16).** The iroh-proxy POC
(`/workspace/iroh-proxy-poc`,
[`docs/research/iroh-proxy-poc/findings.md`](../research/iroh-proxy-poc/findings.md),
5/5 runs clean) settled OQ-67: iroh does **not** expose a
socket-injection hook for the IP/direct transport (the quinn POC's
`Socks5UdpSocket` does not transfer — `noq_endpoint()` is `pub(crate)`,
the IP transport binds its own `netwatch::UdpSocket`, and
`CustomTransport` operates on a separate `CustomAddr` address space
iroh's hole-punching doesn't route through). The decision is **force
relay-only** when a proxy is configured: three stable public iroh
Builder knobs (`clear_ip_transports()` + `addr_filter(relay_only)` +
`proxy_url`) eliminate the direct path and tunnel the relay WebSocket
through the proxy. The peer sees the relay's IP; the relay sees the
proxy's IP; the client's real IP is hidden on both surfaces. No iroh
fork required. Because iroh's `proxy_url` expects an HTTP CONNECT proxy
(not SOCKS5), the integration runs a tiny local **HTTP-to-SOCKS5
bridge** (~80 lines) so a single `Socks5ProxyConfig` covers all three
dials uniformly. The POC also corrected a factual error: iroh's
`proxy_url` proxies the relay WebSocket only, not pkarr/DoH (those use
`pkarr`/`hickory-resolver` directly) — acceptable for the
force-relay-only config (QAD disabled), but the spec text in ADR-090
§5 is corrected. Force relay-only forgoes iroh's direct-path latency
advantage (negligible for the hub deployment, which runs its own
relay) and makes relay availability a hard dependency — the intended
privacy/availability tradeoff; a caller that prefers availability over
privacy for the iroh path simply does not set the proxy. See
[ADR-090](decisions/090-client-dial-socks5-proxy-seam.md) §5.
**Workspace scope corrected (ADR-085, 2026-07-15).** The overview's
crate graph had been describing the wrong scope since ADR-003 — a flat
~12-crate workspace including DNS, messaging, and NAPI, while omitting
channels, hub, worker, and tls. [ADR-085](decisions/085-workspace-scope-core-vs-consumer-repos.md)
records the actual scope: the mono-repo is the **core networking
toolkit** (substrate: core, tls, call, channels; deployment shapes: hub,
worker; foundational handlers: tty, http, ssh, tunnel, socks5, fs, sftp;
vault). Crates that build on top of a hub or worker (docker, agent) are
**consumer repos** — separate repos depending on the published core
crates. This corrects the root cause of the "assembly layer" hedging
pattern: the overview now reflects the real boundary, so the
"assembly layer" has a bounded home (hub/worker), not an escape hatch.
The [overview.md](overview.md) crate graph and ALPN registry are
rewritten to match.
**alknet-channels specs drafted.** The alknet-channels crate (multiplexing
proxy — `ProtocolHandler` on `alknet/channels`, 9-byte chunk format, N
channels over transport stream(s), channel 0 pre-negotiated as
`alknet/call`) now has architecture specs:
[crates/channels/](crates/channels/) (overview, channels-wire,
channels-connection, channels-adapter, channel-operations, channel-client)
and eleven ADRs — [ADR-071](decisions/071-channels-wire-format.md) (9-byte
chunk header; revised for substrate simplification — the header is used in
all substrates including QUIC native, not just in-line; and stream_type
decomposition — every stream_type is unidirectional, grouped in threes:
0/1/2 = data write/read/err, 3/4/5 = control write/read/err, `% 3` formula;
resolves the TTY control channel's "not actually bidirectional" flaw),
[ADR-072](decisions/072-channel-0-pre-negotiated-call.md)
(channel 0 = `alknet/call` pre-negotiated, stream_types [0,1] — call frames
bidirectional via 0=in, 1=out),
[ADR-073](decisions/073-channel-lifecycle-operations.md) (channel
lifecycle operations on the call protocol — `channel/open`/`close`/
`control`/`resources/subscribe`; `channel/resources/subscribe` is a
`Subscription` operation using the already-implemented `StreamingHandler`
machinery, not a polled `Query`; the `direction` field pins who is the
ALPN-server; the control-message division is call-ops for orchestration,
`stream_type 3`/`4` for data-ordered control),
[ADR-074](decisions/074-channelconnection-bidistreamsource.md)
(`ChannelBidiStreamSource` implements `BidiStreamSource` — ADR-070's
extension point; `into_sub_streams()` with `SubStreamHandle` enum (Send/Recv
per unidirectional stream_type); `accept_bi()` generic path for tunnel/SSH),
[ADR-075](decisions/075-channelsadapter-and-channelmanager.md)
(`ChannelsAdapter` substrate-agnostic demux loop (reads 9-byte headers off
every bidi stream, regardless of substrate) + `ChannelManager`
reassemble/allocate split; REQ-CH-01..04 wire-level invariants pinned:
shutdown emits zero-length sentinel, transport close drops all senders, mux
dynamic registration, lenient unknown-`channel_id`),
[ADR-076](decisions/076-backpressure-channel-limits-id-reuse.md)
(bounded-buffer backpressure 1 MiB default, 256-channel cap, monotonic IDs
with wrap-around),
[ADR-077](decisions/077-tty-inside-channels.md) (TTY inside channels uses
sub-streams, not its own 5-byte wire format; 5 sub-streams [0,1,2,3,4]
with control properly bidirectional via 3 (write) + 4 (read); ADR-052's
scope amended to direct-connect TTY only; `channels` feature on alknet-tty),
[ADR-078](decisions/078-two-pump-shutdown-on-completion.md) (two-pump
handlers MUST shut down the opposite sink on pump completion — the
deadlock contract the POC surfaced; handler-level, not channels-layer;
core helper extraction deferred per OQ-57),
[ADR-079](decisions/079-hub-relay-translate-not-forward.md) (hub relay
translates `channel/open` on channel 0 with `forwarded_for` — ADR-032;
data channels byte-forwarded with `channel_id` rewrite; the hub never runs
protocol-specific handlers),
[ADR-080](decisions/080-channelclient.md) (`ChannelClient`,
transport-agnostic `from_connection` primary; `connect_quic` removed
per ADR-089 §5 (dial extracted to `AlknetClient`),
bidirectionality preserved; `AlknetClient` dial-seam extracted as
`alknet-client` per ADR-089, resolving OQ-55),
[ADR-081](decisions/081-channels-subcrate-decomposition.md) (sub-crate
decomposition — `channels-core` (pure multiplexer, depends on alknet-core
only, no call dependency) / `channels-call` (channel 0 pre-negotiation +
lifecycle op registrations, depends on channels-core + alknet-call) /
`channels-hub` (relay) / `channels-worker` (ChannelClient); isolates the
call-protocol coupling from the pure multiplexer). The specs are grounded
in the completed de-risk POC
(`docs/research/alknet-channels/poc-summary.md`, 28 tests passing, three
validated targets: chunk format + demux/mux, per-channel `Connection`
presentation, tunnel handler). The core prerequisite — ADR-070
(`BidiStreamSource` trait + `Connection::from_source`) — is landed and
implemented. The spec work converted three research hedges into decisions:
`channel/resources` is subscribe from day one (not poll-for-v1), channel
ID allocation is server-assigned (not "if zero-RTT needed"), and
backpressure is bounded-buffer (not "if HOL blocking becomes a problem").
Two genuine deferrals: OQ-56 (full windowing — blocked on a real HOL-
blocking observation) and OQ-57 (two-pump helper extraction — blocked on a
second two-pump handler). The TTY integration (ADR-077) amends ADR-052's
scope — the 5-byte format is unchanged for direct `alknet/tty` connections;
inside channels, TTY uses `into_sub_streams()` and the channels layer's
de-chunking, with control properly bidirectional via stream_types 3/4.
**Pre-implementation of the storage/repo pattern.** The project has completed a pivot from a three-layer model to an ALPN-as-service model. The greenfield workspace contains `alknet-vault` (stable — implementation complete and verified, local-only by construction per ADR-025, HD-derivation key model per ADR-026) and research/reference material. Foundational ADRs (001–035) are in place, with the call crate implemented and reviewed.
The storage and auth strategy research (`docs/research/alknet-storage-strategy/findings.md`) surfaced the repo/adapter pattern as the answer to cross-node state (peer identity, credentials). This has now landed as four ADRs:
- **ADR-030** (PeerEntry and Identity.id decoupling): `authorized_fingerprints: HashSet<String>` → `peers: Vec<PeerEntry>`; `Identity.id` becomes the stable `peer_id` (not the fingerprint); key rotation changes the fingerprint, not the identity. Supersedes ADR-029's v1 UUID source (the one-way door — `PeerId` is logical, not crypto — is preserved; the source changes from UUID to `Identity.id` from `PeerEntry`). Resolves OQ-33 and the storage-boundary half of OQ-34.
- **ADR-031** (CredentialStore repo trait): the second repo trait in core (alongside `IdentityProvider`), with `InMemoryCredentialStore` default adapter. Establishes the credential-persistence abstraction.
- **ADR-032** (Forwarded-for identity): `forwarded_for` field on `call.requested` and `OperationContext`; metadata only — `AccessControl::check` never reads it; the `from_call` handler populates it. Wire-format one-way door, included with the ADR-029 migration window.
- **ADR-033** (Storage boundary and repo/adapter pattern): core defines repo traits + in-memory defaults; persistence adapters are separate crates; the assembly layer wires the adapter. Resolves OQ-34's storage-boundary question. Concrete adapter shapes now committed by ADR-035 (was OQ-36).
The alknet-call crate is **implemented and reviewed** — both the server-side core and the client/adapter surface (207 lib + 2 integration tests passing). The alknet-core and alknet-call crate specs are in draft; the alknet-vault crate specs are stable.
**alknet-http specs drafted and consistency-reviewed.** The alknet-http crate (HTTP interface — `h2`/`http/1.1` server + WebSocket browser path + `from_openapi`/`to_openapi`/`from_mcp`/`to_mcp` adapters) now has architecture specs: [crates/http/](crates/http/) (overview, http-server, websocket, http-adapters, http-mcp, webtransport) and thirteen ADRs — [ADR-036](decisions/036-http-to-call-operation-mapping.md) (HTTP-to-call mapping; direct-call surface — **routing superseded by ADR-047**, non-routing clauses survive), [ADR-037](decisions/037-mcp-stdio-transport-exclusion.md) (MCP stdio exclusion), [ADR-038](decisions/038-http3-and-webtransport-as-first-class.md) (HTTP/3 + WebTransport as first-class — **superseded by ADR-044**; its correction of the two-way-door-as-deferral anti-pattern stands, its specific decision is reversed by the scope deferral), [ADR-039](decisions/039-http-server-and-client-host-colocated.md) (HTTP server + client host colocated in one crate), [ADR-040](decisions/040-webtransport-alpn-stream-proxy.md) (WebTransport ALPN-stream-proxy — **parked** per ADR-044; revives unchanged when WebTransport revives), [ADR-041](decisions/041-mcp-tool-gateway-pattern.md) (`to_mcp` tool-gateway pattern — 4 fixed gateway tools instead of one tool per operation, addressing LLM context tool-bloat), [ADR-042](decisions/042-openapi-gateway-pattern.md) (`to_openapi` gateway pattern — 5 fixed gateway endpoints instead of one path per operation; per-caller AccessControl-filtered API surface; supersedes ADR-036's original `to_openapi` clause), [ADR-043](decisions/043-webtransport-bidirectional-alpn-substrate.md) (WebTransport as a bidirectional ALPN transport substrate — **parked** per ADR-044; §2/§3 transfer to WebSocket for v1), [ADR-044](decisions/044-defer-webtransport-browsers-use-websocket.md) (defer `h3`/WebTransport; browsers use WebSocket for the bidirectional call-protocol path; a scope decision per ADR-009 §"What this framework is NOT"; reversal trigger = a concrete ALPN-stream-proxy use case; states the "browser is not a peer" rationale — addressability vs. bidirectionality — that amends ADR-034 §4), and [ADR-045](decisions/045-to-openapi-gateway-spec-versioning.md) (`to_openapi` published-spec versioning — `info.version` semver tracks the gateway endpoint contract, not the operation set; resolves OQ-39), and [ADR-046](decisions/046-assembly-layer-custom-http-routes.md) (assembly-layer custom HTTP routes on HttpAdapter — `extra_routes: Option<Router>` for deployment-specific endpoints like an OAI-compatible proxy; default surface unchanged, takes precedence on collision), and [ADR-047](decisions/047-remove-direct-call-http-surface.md) (remove the direct-call `POST /{service}/{op}` surface — the gateway `/call` is the sole invoke path; the simplified contract is the few-fixed-endpoints model, not a per-operation REST tree; ADR-036's non-routing clauses survive), and [ADR-048](decisions/048-websocket-native-session-not-gateway.md) (WebSocket carries the native `EventEnvelope` call-protocol session, not the HTTP gateway shape — the gateway endpoints are HTTP-only; discovery via `services/list`/`services/schema` as call-protocol ops; clarifies the WS-path shape ADR-044 committed). ADR-003 Amendment 1 clarifies that `alknet-call` is a protocol-foundation crate (the `alknet-http` → `alknet-call` dependency edge). A consistency review pass corrected drift from the mid-spec pivot (the `to_openapi` gateway pattern landed in the prose but not in cross-references; the WebTransport specs inherited the OpenAPI/MCP direction assumption that doesn't hold for the call protocol) — ADR-036's `to_openapi` clause is now amended as superseded by ADR-042, ADR-034 §5's "deferral bucket" wording is corrected (the decision stands), and the http specs now name the one-directional HTTP projection vs. the bidirectional WebSocket (and, when revived, WebTransport) substrate. The WebSocket path is promoted to its own spec ([websocket.md](crates/http/websocket.md)) with the native-session-vs-gateway distinction made explicit (ADR-048). The specs are in draft; implementation has not started. Two open questions carried: OQ-38 (WebTransport standalone relay service scope — distinct from the in-process ALPN-stream-proxy resolved by ADR-040) and OQ-40 (reqwest client config — since resolved by the `ClientWithMiddleware` + middleware stack design). OQ-39 (`to_openapi` published-spec versioning) is resolved by ADR-045.
**Next step**: The storage/repo-pattern ADRs (030–033) are accepted and amend the core and call specs. The next implementation phase is the ADR-029 migration (peer-keyed overlays, `PeerRef` routing, retire `remote_safe`/`trusted_peer`) with the ADR-030 `PeerEntry` change and the ADR-032 `forwarded_for` field folded in — the `OperationContext`, `from_call` handler, and `AuthPolicy` are all under edit, making this the cheapest window. After that: alknet-http implementation (specs drafted; `h3`/WebTransport deferred per ADR-044, browser bidirectional path uses WebSocket), which consumes the `CredentialStore` trait and the `OperationAdapter` contract. The alknet-ssh crate (the other post-core crate, specced in parallel) proceeds independently — it depends on `alknet-core`, not `alknet-call`.
**alknet-tty specs drafted.** The alknet-tty crate (terminal session protocol handler — `ProtocolHandler` on `alknet/tty`, two-carriage wire format with a raw chunk codec + JSON control channel, backend-agnostic via a `TtyBackend` trait) now has architecture specs: [crates/tty/](crates/tty/) (overview, tty-wire, tty-backend, tty-adapter, tty-local) and six ADRs — [ADR-052](decisions/052-alknet-tty-wire-format-and-two-carriage.md) (wire format: `alknet/tty` ALPN, JSON negotiation frame then raw chunks, fixed channel set 0-3, control as JSON), [ADR-053](decisions/053-ttybackend-trait-and-ttyhandle.md) (`TtyBackend` trait + `TtyHandle`; `exit_code` as a `Future`; backends need not be natively async — REQ-TTY-01 from the local-PTY POC; `TtyControlHandle` newtype for `Clone`-ability — `Clone` is not object-safe), [ADR-054](decisions/054-local-tty-backend-sibling-crate.md) (`alknet-tty-local` sibling crate behind a `local` feature re-export; PTY vs pipe per-session; the runner pattern preserved), [ADR-055](decisions/055-exit-code-on-control-chunk.md) (exit code on a stream_type 3 control chunk; "exit chunk is last" invariant; adapter owns the ordering), [ADR-056](decisions/056-backend-cleanup-on-session-cancel.md) (backend cleanup contract: dropping the `exit_code` future on session cancel MUST kill the session target — closes the orphaned-process gap the local-PTY POC surfaced for the waiter thread), [ADR-057](decisions/057-alknet-tty-no-alknet-call-dep.md) (alknet-tty does not depend on alknet-call — the negotiation framing is self-contained; the earlier "reuse `FrameFramedReader`" claim was unsound because the utility is welded to `EventEnvelope` deserialization). The specs are grounded in the alknet-docker POC (`docs/research/alknet-docker/poc-summary.md`) and the alknet-tty POC (`/workspace/alknet-tty-poc/`, built 2026-07-05), which validated the wire format, the control channel, the local-PTY bridge, and the signal-delivery contract (REQ-TTY-02). The docker and SSH backends are future crates that implement the `TtyBackend` trait — out of scope for this spec set, but the trait shape is committed so they can be built against it.
**alknet-docker specs drafted.** The alknet-docker crate (docker operations on the shared `alknet/call` ALPN + `DockerTtyBackend` behind a `tty` feature) now has architecture specs: [crates/docker/](crates/docker/) (overview, docker-operations, docker-tty-backend) and six ADRs — [ADR-058](decisions/058-alknet-docker-on-alknet-call.md) (docker ops register on `alknet/call`, not a separate `alknet/docker` ALPN; the raw-carriage handoff the POC struggled with is dissolved by the alknet-tty extraction — interactive attach moved to `alknet/tty` via `DockerTtyBackend`, no `carriage` field on `call.requested`), [ADR-059](decisions/059-bollard-021-dependency-and-features.md) (bollard 0.21, verified current on crates.io; features `http`+`pipe`+`time`, no `ssl`/`ssh`/`websocket`/`buildkit` — single-host by construction, fleet is a call-protocol concern), [ADR-060](decisions/060-container-resource-model-and-label-namespace.md) (ADR-050 application to bollard: `alknet.managed`/`alknet.owner` labels; `list` `owned_only` flag; hosted-services operator role via the static-resource fallback; handler-driven `revoke` on `remove` with autonomous-death tolerance), [ADR-061](decisions/061-docker-tty-backend-in-alknet-docker.md) (`DockerTtyBackend` in alknet-docker behind a `tty` feature, not a sibling crate; attach vs exec mode; the POC's `drive_attach_raw` as the reference), [ADR-062](decisions/062-docker-client-injection-via-closure-capture.md) (the `Docker` client + `OwnershipStore` are closure-captured at registration time, not read from `OperationContext` and not smuggled through `Capabilities` — `Capabilities` is for secret material only per ADR-014; matches the `from_openapi` pattern), [ADR-063](decisions/063-exit-code-on-terminal-call-responded.md) (non-interactive exec puts `{ "exitCode": N, "terminal": true }` on a final `call.responded` before `call.completed` — `call.completed` stays empty, ADR-012 unchanged). The specs are grounded in the alknet-docker POC (`docs/research/alknet-docker/poc-summary.md`, `/workspace/alknet-docker-poc/`), which validated the hard parts (interactive attach, logs subscription, exec with exit code); the remaining lifecycle operations are mechanical bollard wrapping. The two use cases — disposable dev containers (coordinator-spawned, ownership-recorded) and long-running hosted services (operator-managed, static-resource fallback, per `/workspace/system/dev1/docker.md`) — both work through one `AccessControl` model (ADR-050/060). The `DockerTtyBackend` fills the `TtyBackend` row the alknet-tty spec left open. Four OQs (048–051) track deferred scope: network/volume ops, buildkit, system events subscription, and the full `CreateContainerOptions` surface (deferred to v1 implementation).
**Transport generalization sweep (2026-07-09).** Three commits landed a
clean sweep discovered when building an external app against the crates:
(1) the dead `irpc` / `irpc-derive` workspace deps were removed (no `.rs`
file ever imported irpc — the wire protocol is hand-rolled), recorded by
[ADR-064](decisions/064-irpc-never-integrated-hand-rolled-framing.md)
(supersedes ADR-005, which had accepted "irpc as the call protocol
foundation" based on the previous architecture but was never implemented
as stated); (2) the iroh dep migrated `0.35 → 1.0.2` (6 API surface edits,
no architectural change — unblocks `alknet-blobs`); (3)
[ADR-065](decisions/065-connection-from-stream-generic-single-stream.md)
adds `Connection::from_stream` / `from_bidi` — `Connection` now accepts any
`AsyncRead + AsyncWrite` pair, unblocking TCP+TLS, SSH channel dispatch,
WebTransport streams, and wasm streams through the same `HandlerRegistry`
as QUIC connections, with zero handler code changes. The
`MockConnection` / `ConnectionKind::Mock` test variants are removed (tests
use `from_stream` with `tokio::io::sink`/`empty`). See
[`docs/research/transport-generalization/findings.md`](../research/transport-generalization/findings.md)
for the full trace.
**`from_jsonschema` relocation (ADR-066).** The `from_jsonschema`
adapter was originally placed in `alknet-call` (ADR-017 §5) as a
schema-only adapter with a `NOT_FOUND`-returning placeholder handler —
broken, because an op in the registry needs a real handler.
[ADR-066](decisions/066-from-jsonschema-as-http-adapter.md) moves it to
`alknet-http` as a real reqwest-backed single-endpoint adapter
(functionally similar to `from_openapi`, but one endpoint at a time),
for non-standard / non-OpenAPI / basic REST endpoints that don't have a
full OpenAPI document. The `FromJsonSchema` provenance variant stays in
`alknet-call` (now a handler-bearing leaf, not a "no handler" entry).
The "schema-only, no handler" concept is removed — schema validation
without a handler is served by consuming `OperationSpec` directly. The
adapter location map is now consistent: all HTTP-backed adapters
(`from_openapi`, `from_mcp`, `from_jsonschema`) live in `alknet-http`.
## Architecture Documents
| Document | Status | Description |
|----------|--------|-------------|
| [overview.md](overview.md) | draft | Workspace-level overview, crate graph (core mono-repo scope per ADR-085), hub/worker model, shared types, design principles |
| [open-questions.md](open-questions.md) | draft | OQ index — theme-grouped tables + Deferred/Blocked section; per-OQ files in [`questions/`](questions/) |
| [crates/core/README.md](crates/core/README.md) | draft | alknet-core crate index — shared types + auth + config (endpoint extracted to `alknet-endpoint` per ADR-083 Am. 2026-07-15; `ConnectionCredentials`/`RemoteIdentity` moved here from `alknet-call` per ADR-091; `CallCredentials` stays in `alknet-call`) |
| [crates/core/core-types.md](crates/core/core-types.md) | draft | ProtocolHandler, HandlerError, Connection (`Box<dyn BidiStreamSource>` — ADR-070), BidiStreamSource trait, BiStream, StreamError |
| [crates/core/endpoint.md](crates/core/endpoint.md) | deprecated | Endpoint spec — **moved to `alknet-endpoint`** (ADR-083 Am. 2026-07-15); see [`crates/endpoint/README.md`](crates/endpoint/README.md) |
| [crates/core/auth.md](crates/core/auth.md) | draft | AuthContext (incl. `anonymous` constructor), Identity, IdentityProvider, AuthToken, resolution flow |
| [crates/core/config.md](crates/core/config.md) | draft | StaticConfig, DynamicConfig, ArcSwap, ConfigReloadHandle |
| [crates/call/README.md](crates/call/README.md) | draft | alknet-call crate index |
| [crates/call/call-protocol.md](crates/call/call-protocol.md) | draft | CallAdapter, hand-rolled EventEnvelope framing (no irpc — ADR-064), stream model, PendingRequestMap, bidirectional calls, streaming subscribe example |
| [crates/call/operation-registry.md](crates/call/operation-registry.md) | draft | OperationSpec, Handler, OperationRegistry, AccessControl, capability injection, service discovery (hand-rolled, no irpc) |
| [crates/call/client-and-adapters.md](crates/call/client-and-adapters.md) | draft | CallClient (transport-agnostic `spawn_dispatch` primary; `connect` removed per ADR-089 §5 — dial extracted to `AlknetClient`), from_call, OperationAdapter trait, adapter location map, no-env-vars invariant, exchange-of-operations pattern (from_jsonschema moved to alknet-http per ADR-066) |
| [crates/http/README.md](crates/http/README.md) | draft | alknet-http crate index |
| [crates/http/overview.md](crates/http/overview.md) | draft | Crate purpose, two roles (server + client host), dependencies, adapter location map |
| [crates/http/http-server.md](crates/http/http-server.md) | draft | HttpAdapter for h2/http1.1 + WebSocket upgrade route, axum over QUIC, Bearer auth, stealth, /healthz |
| [crates/http/websocket.md](crates/http/websocket.md) | draft | WebSocket browser bidirectional path — native `EventEnvelope` call-protocol session (not the gateway shape); framing, dispatch, bidirectionality, connection-local overlay, browsers-are-not-peers, deferred `from_wss` |
| [crates/http/http-adapters.md](crates/http/http-adapters.md) | draft | from_openapi (reqwest; JSON + YAML input per ADR-051), from_jsonschema (single-endpoint reqwest forwarding handler per ADR-066), and to_openapi (projection); no-env-vars injection point |
| [crates/http/http-mcp.md](crates/http/http-mcp.md) | draft | from_mcp / to_mcp (feature-gated), streamable-HTTP-only, stdio exclusion |
| [crates/http/webtransport.md](crates/http/webtransport.md) | deferred | h3/WebTransport handler — deferred per ADR-044; browser bidirectional path uses WebSocket (see http-server.md). Spec kept intact for revival. |
| [crates/tty/README.md](crates/tty/README.md) | draft | alknet-tty crate index |
| [crates/tty/overview.md](crates/tty/overview.md) | draft | Crate purpose, two-carriage model, dependencies, ALPN, backend location map, feature gates |
| [crates/tty/tty-wire.md](crates/tty/tty-wire.md) | draft | Wire format: negotiation frame (JSON carriage), raw chunk codec (`[stream_type: u8][length: u32 be][payload]`), control channel (stream_type 3, JSON control messages), sentinels |
| [crates/tty/tty-backend.md](crates/tty/tty-backend.md) | draft | `TtyBackend` trait, `TtyParams`, `TtyHandle`, `TtyControl` — the backend inversion point. Carries REQ-TTY-01 (backends need not be natively async) |
| [crates/tty/tty-adapter.md](crates/tty/tty-adapter.md) | draft | `TtyAdapter` (`ProtocolHandler` on `alknet/tty`): session lifecycle, three-pump bidirectional driver, negotiation errors, exit-chunk ordering (ADR-055), access control |
| [crates/tty/tty-local.md](crates/tty/tty-local.md) | draft | `alknet-tty-local` sibling crate: `LocalTtyBackend` via `portable_pty` (PTY) and `std::process::Command` (pipe/runner). Carries REQ-TTY-02 (signal forwarding to the process group) |
| [crates/docker/README.md](crates/docker/README.md) | draft | alknet-docker crate index |
| [crates/docker/overview.md](crates/docker/overview.md) | draft | Crate purpose, two-role design (call ops + DockerTtyBackend), dependencies, ALPN, label namespace, feature gates, assembly-layer wiring |
| [crates/docker/docker-operations.md](crates/docker/docker-operations.md) | draft | Operation surface: lifecycle (Query/Mutation), logs/exec/pull (Subscription via StreamingHandler), access control (ADR-050/060), label namespace, teardown coupling |
| [crates/docker/docker-tty-backend.md](crates/docker/docker-tty-backend.md) | draft | `DockerTtyBackend` (impl `TtyBackend`): attach vs exec mode, `TtyHandle` field mapping, `TtyControl` → bollard resize/signal, `exit_code` Drop-kill (ADR-056) |
| [crates/vault/README.md](crates/vault/README.md) | stable | alknet-vault crate index |
| [crates/vault/mnemonic-derivation.md](crates/vault/mnemonic-derivation.md) | stable | BIP39, SLIP-0010, BIP-0032, derivation paths, key types |
| [crates/vault/encryption.md](crates/vault/encryption.md) | stable | AES-256-GCM, EncryptedData, key versioning, salt (Phase B reserved) |
| [crates/vault/service.md](crates/vault/service.md) | stable | VaultServiceHandle lifecycle, direct dispatch, cache, error model |
| [crates/vault/protocol.md](crates/vault/protocol.md) | stable | DerivedKey redaction, KeyType, serialization behavior |
| [crates/hub/README.md](crates/hub/README.md) | draft | alknet-hub crate — composes a subset of three endpoint types (web/native/iroh — ADR-086), channels substrate (ADR-079 relay), worker registration flow (OQ-58), identity over transports, aggregated peer env, connection lifecycle, service discovery |
| [crates/tls/README.md](crates/tls/README.md) | reviewed | alknet-tls crate — shared TLS config (`TlsServerConfig` + `TlsClientConfig`) shared across quinn + TCP+TLS + iroh; one cert, one ACME state machine, N transports; split ALPN lists per endpoint type (ADR-086, resolves OQ-62); `FingerprintPinVerifier` moved here from `alknet-call` (ADR-089 §5); `webpki-roots` fallback for empty platform stores (ADR-088 §5); fixes cert-reuse welding in `alknet-core/endpoint.rs` (ADR-082) |
| [crates/client/README.md](crates/client/README.md) | draft | alknet-client crate — the native client dial seam (`AlknetClient`), client-side analogue of `AlknetEndpoint`; three dials (QUIC + TCP+TLS via `TlsClientConfig`, iroh via key) unified on `&ConnectionCredentials` (ADR-091); optional SOCKS5 proxy (ADR-090 — UDP ASSOCIATE for QUIC, CONNECT for TCP+TLS, force-relay-only + HTTP-to-SOCKS5 bridge for iroh; OQ-67 resolved); produces `Connection` for `CallClient`/`ChannelClient` take-over; `CallClient::connect`/`ChannelClient::connect_quic` removed (dial centralized here); `alknet/register` named (wire protocol deferred, OQ-66) |
| [crates/endpoint/README.md](crates/endpoint/README.md) | draft | alknet-endpoint crate — the server-side accept-loop runner (`AlknetEndpoint`), extracted from `alknet-core` (ADR-083 Am. 2026-07-15); takes pre-built transports via `with_quinn`/`with_iroh`/`with_tcp_tls`; public `dispatch` for SSH/WT; `EndpointError` removed (vestigial); handler crates no longer transitively link quinn/iroh |
| [crates/channels/README.md](crates/channels/README.md) | draft | alknet-channels crate — multiplexing proxy, 9-byte chunk format, N channels over one transport stream |
| [crates/channels/overview.md](crates/channels/overview.md) | draft | Crate purpose, the multiplexing collapse, dependencies, transport agnosticism, WASM, relationship to existing crates |
| [crates/channels/channels-wire.md](crates/channels/channels-wire.md) | draft | 9-byte chunk format, stream types, sentinels, framing disambiguation, wire-level invariants (REQ-CH-01..05) |
| [crates/channels/channels-connection.md](crates/channels/channels-connection.md) | draft | `ChannelBidiStreamSource` (implements `BidiStreamSource`), `into_sub_streams()` typed accessor, recursive composition |
| [crates/channels/channels-adapter.md](crates/channels/channels-adapter.md) | draft | `ChannelsAdapter`, `ChannelManager`, demux/mux contracts (REQ-CH-01..04), two-pump pattern (ADR-078) |
| [crates/channels/channel-operations.md](crates/channels/channel-operations.md) | draft | `channel/open`/`close`/`control`/`resources/subscribe`, ACL flow, `direction` semantics, hub relay contract (ADR-079) |
| [crates/channels/channel-client.md](crates/channels/channel-client.md) | draft | `ChannelClient` — client side of a channels connection, transport-agnostic `from_connection` primary; `connect_quic` removed per ADR-089 §5 (dial extracted to `AlknetClient`); bidirectionality preserved |
## ADR Table
| ADR | Title | Status |
|-----|-------|--------|
| [001](decisions/001-alpn-protocol-dispatch.md) | ALPN-Based Protocol Dispatch | Accepted |
| [002](decisions/002-protocol-handler-trait.md) | ProtocolHandler Trait | Accepted |
| [003](decisions/003-crate-decomposition.md) | Crate Decomposition | Accepted |
| [004](decisions/004-auth-as-shared-core.md) | Auth as Shared Core (IdentityProvider) | Accepted |
| [005](decisions/005-irpc-as-call-protocol-foundation.md) | irpc as Call Protocol Foundation | ~~Accepted~~ → **Superseded** by ADR-064 (irpc was never integrated) |
| [006](decisions/006-alpn-convention-and-connection-model.md) | ALPN String Convention and Connection Model | Accepted |
| [007](decisions/007-bistream-type-definition.md) | BiStream Type Definition | Accepted |
| [008](decisions/008-secret-service-integration.md) | Vault Integration Point | Accepted |
| [009](decisions/009-one-way-door-decision-framework.md) | One-Way Door Decision Framework | Accepted |
| [010](decisions/010-alpn-router-and-endpoint.md) | ALPN Router and Endpoint | Accepted (Amendment 1 superseded by ADR-083 — TCP+TLS is a first-class owned transport via `with_tcp_tls`) |
| [011](decisions/011-authcontext-structure.md) | AuthContext Structure and Resolution Flow | Accepted |
| [012](decisions/012-call-protocol-stream-model.md) | Call Protocol Stream Model | Accepted |
| [013](decisions/013-rust-canonical-implementation.md) | Rust as Canonical Implementation Language | Accepted |
| [014](decisions/014-secret-material-flow-and-capability-injection.md) | Secret Material Flow and Capability Injection | Accepted |
| [015](decisions/015-privilege-model-and-authority-context.md) | Privilege Model and Authority Context | Accepted |
| [016](decisions/016-abort-cascade-for-nested-calls.md) | Abort Cascade for Nested Calls | Accepted |
| [017](decisions/017-call-protocol-client-and-adapter-contract.md) | Call Protocol Client and Adapter Contract | Accepted (`from_jsonschema` clause superseded by ADR-066) |
| [018](decisions/018-vault-standalone-crate.md) | Vault as Standalone Crate | Accepted |
| [019](decisions/019-vault-assembly-layer-only.md) | Vault Assembly-Layer-Only Access | Accepted |
| [020](decisions/020-hd-derivation-for-encryption-keys.md) | HD Derivation for Encryption Keys | Accepted |
| [021](decisions/021-key-rotation-via-version-indexed-paths.md) | Key Rotation via Version-Indexed Paths | Accepted |
| [022](decisions/022-handler-registration-provenance-and-composition-authority.md) | Handler Registration, Provenance, and Composition Authority | Accepted (`FromJsonSchema` row superseded by ADR-066) |
| [023](decisions/023-operation-error-schemas.md) | Operation Error Schemas | Accepted |
| [024](decisions/024-operation-registry-layering.md) | Operation Registry Layering | Accepted |
| [025](decisions/025-vault-local-only-dispatch.md) | Vault Local-Only Dispatch | Accepted |
| [026](decisions/026-vault-key-model-hd-derivation.md) | Vault Key Model — HD Derivation | Accepted |
| [027](decisions/027-tls-identity-redesign-acme-rawkey-decoupling.md) | TLS Identity Redesign — ACME + RawKey Decoupling | Accepted (§5 amended by ADR-083 — guard moves to shared `dispatch`) |
| [028](decisions/028-callclient-peer-scoped-registry-filtering.md) | Peer-Scoped Registry Filtering for CallClient Inbound Dispatch | ~~Accepted~~ → **Superseded** by ADR-029 |
| [029](decisions/029-peer-graph-routing-model.md) | Peer-Graph Routing Model for alknet-call Composition | Accepted (Assumption 1's `PeerId` source superseded by ADR-030) |
| [030](decisions/030-peerentry-and-identity-id-decoupling.md) | PeerEntry and Identity.id Decoupling | Accepted (supersedes ADR-029 Assumption 1's UUID source) |
| [031](decisions/031-credentialstore-repo-trait.md) | CredentialStore Repo Trait | Accepted |
| [032](decisions/032-forwarded-for-identity.md) | Forwarded-For Identity (Metadata, Not Authority) | Accepted |
| [033](decisions/033-storage-boundary-and-repo-adapter-pattern.md) | Storage Boundary and Repo/Adapter Pattern | Accepted |
| [034](decisions/034-outgoing-only-x509-and-three-peer-roles.md) | Outgoing-Only X.509 and the Three Peer Roles | Accepted |
| [035](decisions/035-concrete-persistence-adapter-shapes.md) | Concrete Persistence Adapter Shapes — Read/Write Split, honker+SQLite | Accepted |
| [036](decisions/036-http-to-call-operation-mapping.md) | HTTP-to-Call Operation Mapping | Proposed — **routing decision superseded by ADR-047** (non-routing clauses survive: SSE, auth, `/healthz`, stealth, error mapping) |
| [037](decisions/037-mcp-stdio-transport-exclusion.md) | MCP Stdio Transport Exclusion | Proposed |
| [038](decisions/038-http3-and-webtransport-as-first-class.md) | HTTP/3 and WebTransport as First-Class HTTP Transports | ~~Proposed~~ → **Superseded** by ADR-044 |
| [039](decisions/039-http-server-and-client-host-colocated.md) | HTTP Server and Client Host Colocated in alknet-http | Proposed |
| [040](decisions/040-webtransport-alpn-stream-proxy.md) | WebTransport ALPN-Stream-Proxy | Proposed — **parked** (implementation deferred per ADR-044) |
| [041](decisions/041-mcp-tool-gateway-pattern.md) | MCP Tool-Gateway Pattern for to_mcp | Proposed |
| [042](decisions/042-openapi-gateway-pattern.md) | OpenAPI Gateway Pattern for to_openapi | Proposed |
| [043](decisions/043-webtransport-bidirectional-alpn-substrate.md) | WebTransport as a Bidirectional ALPN Transport Substrate | Proposed — **parked** (implementation deferred per ADR-044; §2/§3 transfer to WebSocket) |
| [044](decisions/044-defer-webtransport-browsers-use-websocket.md) | Defer h3/WebTransport; Browsers Use WebSocket | Accepted |
| [045](decisions/045-to-openapi-gateway-spec-versioning.md) | to_openapi Gateway-Spec Versioning | Proposed |
| [046](decisions/046-assembly-layer-custom-http-routes.md) | Assembly-Layer Custom HTTP Routes on HttpAdapter | Proposed |
| [047](decisions/047-remove-direct-call-http-surface.md) | Remove the Direct-Call HTTP Surface; Gateway Is the Sole Invoke Path | Proposed |
| [048](decisions/048-websocket-native-session-not-gateway.md) | WebSocket Carries the Native Call-Protocol Session, Not the Gateway Shape | Accepted |
| [049](decisions/049-streaming-handler-for-subscriptions.md) | Streaming Handler for Subscription Operations | Accepted |
| [050](decisions/050-dynamic-resource-ownership-for-runtime-spawned-resources.md) | Dynamic Resource Ownership for Runtime-Spawned Resources | Accepted |
| [051](decisions/051-yaml-input-for-from-openapi.md) | YAML Input Format for from_openapi | Accepted |
| [052](decisions/052-alknet-tty-wire-format-and-two-carriage.md) | alknet-tty Wire Format and Two-Carriage Model | Accepted |
| [053](decisions/053-ttybackend-trait-and-ttyhandle.md) | TtyBackend Trait and TtyHandle — the Backend Inversion Point | Accepted |
| [054](decisions/054-local-tty-backend-sibling-crate.md) | Local TTY Backend as a Sibling Crate (`alknet-tty-local`) | Accepted |
| [055](decisions/055-exit-code-on-control-chunk.md) | Exit Code on a Control Chunk (the Last Chunk Before Stream Close) | Accepted |
| [056](decisions/056-backend-cleanup-on-session-cancel.md) | Backend Cleanup on Session Cancel (Drop of `exit_code` Kills) | Accepted |
| [057](decisions/057-alknet-tty-no-alknet-call-dep.md) | alknet-tty Does Not Depend on alknet-call (Self-Contained Negotiation Framing) | Accepted |
| [058](decisions/058-alknet-docker-on-alknet-call.md) | alknet-docker Registers on `alknet/call` (No Separate ALPN) | Accepted |
| [059](decisions/059-bollard-021-dependency-and-features.md) | bollard 0.21 Dependency and Feature Selection | Accepted |
| [060](decisions/060-container-resource-model-and-label-namespace.md) | Container Resource Model and Label Namespace | Accepted |
| [061](decisions/061-docker-tty-backend-in-alknet-docker.md) | DockerTtyBackend in alknet-docker | Accepted |
| [062](decisions/062-docker-client-injection-via-closure-capture.md) | Docker Client and OwnershipStore Injection via Closure Capture | Accepted |
| [063](decisions/063-exit-code-on-terminal-call-responded.md) | Exit Code on a Terminal `call.responded` for Non-Interactive Exec | Accepted |
| [064](decisions/064-irpc-never-integrated-hand-rolled-framing.md) | irpc Was Never Integrated — Hand-Rolled EventEnvelope Framing | Accepted (supersedes ADR-005) |
| [065](decisions/065-connection-from-stream-generic-single-stream.md) | `Connection::from_stream` — Generic Single-Stream Connections | Accepted |
| [066](decisions/066-from-jsonschema-as-http-adapter.md) | `from_jsonschema` as HTTP-Backed Single-Endpoint Adapter in alknet-http | Accepted (supersedes the `from_jsonschema` clause of ADR-017 §5 and the `FromJsonSchema` provenance row of ADR-022) |
| [067](decisions/067-aggregated-peer-env-wiring.md) | Aggregated Peer-Environment Wiring for Hub Deployments | Proposed |
| [068](decisions/068-peer-composite-env-peer-operations.md) | PeerCompositeEnv::peer_operations Override | Proposed |
| [069](decisions/069-from-call-manual-free-function.md) | from_call Is a Manual Free Function, Not Auto-Wired | Proposed |
| [070](decisions/070-bidistreamsource-trait.md) | BidiStreamSource Trait — Open Connection for Extension | Accepted |
| [071](decisions/071-channels-wire-format.md) | alknet-channels Wire Format — 9-Byte Chunk Header | Accepted |
| [072](decisions/072-channel-0-pre-negotiated-call.md) | Channel 0 Is Pre-Negotiated `alknet/call` | Accepted |
| [073](decisions/073-channel-lifecycle-operations.md) | Channel Lifecycle Operations on the Call Protocol | Accepted |
| [074](decisions/074-channelconnection-bidistreamsource.md) | ChannelConnection — BidiStreamSource over Chunk Reassembly | Accepted |
| [075](decisions/075-channelsadapter-and-channelmanager.md) | ChannelsAdapter and ChannelManager | Accepted |
| [076](decisions/076-backpressure-channel-limits-id-reuse.md) | Backpressure, Channel Limits, and ID Reuse | Accepted |
| [077](decisions/077-tty-inside-channels.md) | TTY Inside Channels — Sub-Streams, Not Wire Format | Accepted (amends ADR-052 scope — 5-byte format scoped to direct TTY) |
| [078](decisions/078-two-pump-shutdown-on-completion.md) | Two-Pump Shutdown-on-Completion Pattern | Accepted |
| [079](decisions/079-hub-relay-translate-not-forward.md) | Hub Relay — Translate, Not Transparently Forward | Accepted |
| [080](decisions/080-channelclient.md) | ChannelClient — the Client Side of a Channels Connection | Accepted |
| [081](decisions/081-channels-subcrate-decomposition.md) | channels Sub-Crate Decomposition | Accepted |
| [082](decisions/082-alknet-tls-extraction.md) | alknet-tls Crate Extraction | Accepted (amended — endpoint signature superseded by ADR-083) |
| [083](decisions/083-endpoint-as-accept-loop-runner.md) | Endpoint as Multi-Transport Accept-Loop Runner with Public Dispatch | Accepted (revised — TCP+TLS is an owned transport, not external; amended 2026-07-15 — endpoint extracted from `alknet-core` into `alknet-endpoint`; `EndpointError` removed — both variants vestigial, `shutdown()` infallible) |
| [084](decisions/084-aws-lc-rs-crypto-provider.md) | aws-lc-rs as the TLS Crypto Provider | Accepted |
| [085](decisions/085-workspace-scope-core-vs-consumer-repos.md) | Workspace Scope — Core vs. Consumer Repos | Accepted |
| [086](decisions/086-endpoint-types-and-entry-points.md) | Endpoint Types and Entry Points | Accepted |
| [087](decisions/087-tlsclientconfig-not-blocked-on-dial.md) | `TlsClientConfig` Not Blocked on Dial Seam | Accepted (§5 amended by ADR-089 — `FingerprintPinVerifier` moves to `alknet-tls`; `alknet-call` sheds TLS deps; input framing amended by ADR-091 — `ClientVerifierContext` derived from `ConnectionCredentials`, not `CallCredentials`) |
| [088](decisions/088-tlserror-shape.md) | `TlsError` Shape — Single Enum, Owned by `alknet-tls` | Accepted (§5 added — `webpki-roots` fallback when platform store is empty; §7 references ADR-089 for handshake-error surfacing) |
| [089](decisions/089-alknetclient-native-dial-seam.md) | AlknetClient — Native Client Dial Seam | Accepted (resolves OQ-55; `CallClient::connect` / `ChannelClient::connect_quic` removed; §3/§5 amended by ADR-091 — dial takes `ConnectionCredentials`, not `CallCredentials`; `CallCredentials` stays in `alknet-call`; `FingerprintPinVerifier` moved to `alknet-tls`; `ClientError` removed; `alknet-call` sheds TLS deps) |
| [090](decisions/090-client-dial-socks5-proxy-seam.md) | Client-Dial SOCKS5 Proxy Seam | Accepted (§5 amended 2026-07-16 — OQ-67 resolved: iroh force-relay-only + HTTP-to-SOCKS5 bridge) |
| [091](decisions/091-connectioncredentials-decouple-dial-from-call.md) | `ConnectionCredentials` — Decouple Dial Credentials from Call Protocol | Accepted (amends ADR-089 §3/§5 and ADR-087 input framing; dial takes `ConnectionCredentials` not `CallCredentials`; all three dial signatures unified; `dial_iroh`'s `node_id` derived from `remote_identity`; `auth_token` stays in call-protocol layer) |
## Open Questions
Open questions are tracked in [open-questions.md](open-questions.md) — an index of theme-grouped tables (67 OQs across 20 themes) with a cross-theme [Deferred / Blocked](open-questions.md#deferred--blocked) section surfacing the safe-exit deferrals. Each OQ lives in its own file under [`questions/`](questions/) (`NNN-slug.md`, mirroring the ADR convention).
## Document Lifecycle
| Status | Meaning | Transitions |
|--------|---------|-------------|
| `draft` | Under active development. May change significantly. | → `reviewed` when open questions are resolved |
| `reviewed` | Architecture is final. Implementation may begin. Changes require review. | → `stable` when implementation is complete and verified |
| `stable` | Locked. Changes require review and may warrant an ADR. | → `deprecated` when superseded |
| `deprecated` | Superseded. Kept for reference. | Removed when no longer referenced |
## References
- Pivot proposal: `docs/research/pivot/alpn-service-architecture.md`
- Cleanup plan: `docs/research/pivot/cleanup-plan.md`
- SDD process: `docs/sdd_process.md`
- Reference implementation: `/workspace/@alkdev/alknet-main/`