ai/prompt-io/opencode/20260819T213144Z_f81fc5e5_prompt_io.md

@@ -1,37 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-session: tractor-addr-unpacking-followup
-timestamp: 2026-08-19T21:31:44Z
-git_ref: f81fc5e5
-scope: code
-substantive: true
-raw_file: 20260819T213144Z_f81fc5e5_prompt_io.raw.md
----
-
-## Prompt
-
-The human requested runtime boundary integration with the established
-per-step implementation and commit-plan workflow.
-
-## Response summary
-
-Kept `TunnelledAddress` available to callers while peeling it at the
-last outbound boundary before transport lookup and dialing. Added a
-regression which captures both transport arguments and confirms plain
-TCP behavior is unchanged.
-
-## Files changed
-
-- `tractor/ipc/_chan.py` - peel tunnel annotations before outbound
-  transport dispatch and connection.
-- `tests/ipc/test_channel_tunnel_boundary.py` - verify plain and
-  tunnelled channel inputs deliver only TCP overlays.
-
-## Human edits
-
-The human chose the runtime-boundary slice, required the existing
-per-step commit-plan flow, and previously established that wrappers
-must retain bindspace metadata without impersonating transports. The
-agent implemented those constraints; no direct manual source edits were
-observed during this step.

ai/prompt-io/opencode/20260819T213144Z_f81fc5e5_prompt_io.raw.md

@@ -1,25 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-timestamp: 2026-08-19T21:31:44Z
-git_ref: f81fc5e5
-diff_cmd: git diff HEAD~1..HEAD
----
-
-# Raw output - outbound tunnel boundary
-
-The human requested the next tunnelled-address slice using the same
-per-step commit-plan flow. Existing design decisions require retaining
-tunnel metadata until the narrow IPC transport boundary and never
-teaching exact-type transport tables about tunnel wrappers.
-
-> `git diff HEAD~1..HEAD -- tractor/ipc/_chan.py tests/ipc/test_channel_tunnel_boundary.py`
-
-Extended channel address inputs to accept tunnel declarations, then
-called `strip_tunnels()` immediately before exact-type transport lookup
-and `connect_to()`. Added plain/tunnel parameterized coverage proving
-both operations receive the identical TCP overlay while the original
-wrapper retains its tunnel spec.
-
-Verification included focused IPC tests, Ruff, discovery/IPC suites,
-and the full tractor suite.

ai/prompt-io/opencode/20260819T213145Z_f81fc5e5_prompt_io.md

@@ -1,40 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-session: tractor-addr-unpacking-followup
-timestamp: 2026-08-19T21:31:45Z
-git_ref: f81fc5e5
-scope: code
-substantive: true
-raw_file: 20260819T213145Z_f81fc5e5_prompt_io.raw.md
----
-
-## Prompt
-
-The human requested completion of inbound runtime peeling using the
-same per-step implementation and commit-plan workflow.
-
-## Response summary
-
-Preserved tunnel declarations through listener configuration, peeled
-them immediately before `Endpoint` construction, and used the overlay
-for backend-specific random listener allocation after registry
-discovery. Added a real listener regression for the reflection and
-exact-type boundary.
-
-## Files changed
-
-- `tractor/ipc/_server.py` - accept wrapper declarations and peel at
-  `Endpoint` construction.
-- `tractor/_root.py` - allocate random transport addresses from the
-  contacted registry's overlay.
-- `tests/ipc/test_server_tunnel_boundary.py` - verify a real listener
-  stores only TCP while preserving the source annotation.
-
-## Human edits
-
-The human selected the runtime-boundary work and previously corrected
-the architecture so tractor retains future bindspace provisioning
-ownership while `Endpoint` sees only application transports. The agent
-implemented and tested that direction; no direct manual source edits
-were observed during this step.

ai/prompt-io/opencode/20260819T213145Z_f81fc5e5_prompt_io.raw.md

@@ -1,25 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-timestamp: 2026-08-19T21:31:45Z
-git_ref: f81fc5e5
-diff_cmd: git diff HEAD~1..HEAD
----
-
-# Raw output - inbound tunnel boundary
-
-The human requested runtime boundary integration while preserving the
-future tractor-owned bindspace lifecycle.
-
-> `git diff HEAD~1..HEAD -- tractor/ipc/_server.py tractor/_root.py tests/ipc/test_server_tunnel_boundary.py`
-
-Broadened listener declarations to carry tunnel wrappers until
-`_serve_ipc_eps()` and peeled immediately before `Endpoint`
-construction. Also peeled a contacted tunnelled registry before
-backend-specific random listener allocation. Added a real TCP listener
-regression proving `Endpoint` stores only the resolved overlay while
-the original declaration retains bindspace metadata.
-
-Verification included `465` collected tests, `84` passing
-discovery/IPC tests with two xpasses, Ruff, and the full suite with
-`447` passes.

ai/prompt-io/opencode/20260820T021516Z_dfad66a0_prompt_io.md

@@ -1,41 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-session: tractor-addr-unpacking-followup
-timestamp: 2026-08-20T02:15:16Z
-git_ref: dfad66a0
-scope: docs
-substantive: true
-raw_file: 20260820T021516Z_dfad66a0_prompt_io.raw.md
----
-
-## Prompt
-
-The human requested that the bindspace plan preserve the agreed
-capability, spawn-bootstrap, endpoint-role, namespace augmentation,
-random-address, and teardown semantics, using `github/ns_aware` as
-prototype input.
-
-## Response summary
-
-Updated plan-03 and the shared backend contract to separate serializable
-bindspace declarations from scoped live capabilities, make namespace
-entry a pre-runtime spawn operation, keep maddr paths role-neutral, and
-define listen/dial provisioning plus ownership-sensitive teardown.
-
-## Files changed
-
-- `ai/tpt-backends/03_wg_tunnel_bindspace.md` - layer-C capability,
-  bootstrap, role, teardown, test, and risk model.
-- `ai/tpt-backends/00_shared_backend_contract.md` - distinguish
-  transport bind selectors from process namespace lifecycle.
-
-## Human edits
-
-The human supplied the core architecture: structured scoped
-capabilities, spawn-time namespace entry, orthogonal namespace
-augmentation, source/destination-dependent provisioning, and
-role-dependent teardown. They also rejected premature assumptions about
-`open_bindspace()` returning an address and requested grounding in the
-existing namespace prototype. The agent translated those decisions into
-the plan text; no direct manual source edits were observed.

ai/prompt-io/opencode/20260820T021516Z_dfad66a0_prompt_io.raw.md

@@ -1,34 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-timestamp: 2026-08-20T02:15:16Z
-git_ref: dfad66a0
-diff_cmd: git diff HEAD~1..HEAD
----
-
-# Raw output - bindspace capability design
-
-The human corrected the layer-C design around local network-stack
-realization. They established that bindspace state should be both
-structured and a scoped capability; namespace entry belongs in
-subactor bootstrap; maddrs can describe source or destination network
-paths while namespace selection augments them orthogonally; random
-address and teardown behavior depend on operation role and ownership.
-
-They directed comparison with the prototype on `github/ns_aware` and
-requested these decisions be preserved in the plan.
-
-> `git diff HEAD~1..HEAD -- ai/tpt-backends/03_wg_tunnel_bindspace.md ai/tpt-backends/00_shared_backend_contract.md`
-
-Reworked layer C around serializable `BindspaceSpec`, stable
-`BindspaceIdentity`, and scoped non-serializable `BindspaceHandle`
-concepts. Namespace FDs pin identity and lifetime; parent/supervisor
-provisioning transfers entry capability through spawn; the child enters
-before runtime, channels, listeners, sockets, or worker threads and then
-drops authority. Listen/dial roles and owned/borrowed teardown are
-explicit, while maddrs remain role-neutral network-path declarations.
-
-The shared backend contract now separates transport-level `.bindspace`
-selectors from process namespace lifecycle. Added tests/risks for FD
-identity, bootstrap ordering, privilege drop, role ownership, and
-shared-resource teardown.

ai/prompt-io/opencode/20260820T033107Z_ba07e09d_prompt_io.md

@@ -1,41 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-session: tractor-addr-unpacking
-timestamp: 2026-08-20T03:31:07Z
-git_ref: ba07e09d
-scope: code
-substantive: true
-raw_file: 20260820T033107Z_ba07e09d_prompt_io.raw.md
----
-
-## Prompt
-
-The human requested canonical tagged transport addresses with a
-reader-first migration. TCP should decode `('tcp', host, port)`, Unix
-should decode `('unix', path)`, `uds` should remain an accepted input
-alias and internal transport key, and legacy tuple/list inputs must keep
-working before writers switch formats.
-
-## Response summary
-
-Introduced canonical and compatibility address aliases, explicit tagged
-dispatch, transport-specific tagged readers, and focused serialization
-tests. Kept legacy pair inputs and native IPv6 socket values readable so
-this boundary can ship before tagged emission.
-
-## Files changed
-
-- `tractor/discovery/_addr.py` - address aliases and tagged dispatch.
-- `tractor/ipc/_tcp.py` - tagged, legacy, and IPv6 TCP decoding.
-- `tractor/ipc/_uds.py` - canonical Unix and UDS-alias decoding.
-- `tests/discovery/test_address_serialization.py` - reader compatibility
-  coverage.
-
-## Human edits
-
-The human supplied the canonical `tcp` and `unix` forms, chose `uds` as
-an input-only serialization alias while preserving it as the runtime
-transport key, and required a reader-first commit boundary. The agent
-implemented those decisions; no direct manual source edits were
-observed.

ai/prompt-io/opencode/20260820T033107Z_ba07e09d_prompt_io.raw.md

@@ -1,25 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-timestamp: 2026-08-20T03:31:07Z
-git_ref: ba07e09d
-diff_cmd: git diff HEAD~1..HEAD
----
-
-# Raw output - tagged address readers
-
-The human requested a migration away from ambiguous untagged transport
-tuples. They established `('tcp', host, port)` and `('unix', path)` as
-canonical forms, retained `('uds', path)` as an input alias, and required
-a reader-first compatibility boundary before changing emitted values.
-
-> `git diff HEAD~1..HEAD -- tractor/discovery/_addr.py tractor/ipc/_tcp.py tractor/ipc/_uds.py tests/discovery/test_address_serialization.py`
-
-Added explicit tagged address aliases and dispatch, taught TCP and UDS
-readers to decode tagged tuple/list payloads, preserved legacy pair input,
-and retained native IPv6 socket-address decoding. Added focused tests for
-canonical tags, the UDS alias, msgpack-style lists, legacy pairs, and IPv6
-socket values.
-
-Focused reader tests and Ruff checks passed before the writer migration
-was applied.

ai/prompt-io/opencode/20260820T033108Z_ba07e09d_prompt_io.md

@@ -1,45 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-session: tractor-addr-unpacking
-timestamp: 2026-08-20T03:31:08Z
-git_ref: ba07e09d
-scope: code
-substantive: true
-raw_file: 20260820T033108Z_ba07e09d_prompt_io.raw.md
----
-
-## Prompt
-
-The human asked the agent to continue after adding tagged readers,
-complete canonical address emission without dropping legacy input
-compatibility, verify the migration, and prepare a complete multi-commit
-package when the turn was done.
-
-## Response summary
-
-Changed `.unwrap()` to emit tagged TCP and Unix addresses, updated direct
-tuple consumers and spawn payload declarations, and aligned multiaddr,
-runtime, IPC, and discovery tests with canonical serialized equality.
-Kept untagged tuples and the `uds` spelling readable at input boundaries.
-
-## Files changed
-
-- `tractor/discovery/_addr.py` - canonical output alias.
-- `tractor/discovery/_multiaddr.py` - tagged address composition.
-- `tractor/ipc/_tcp.py` - tagged emission and direct socket dialing.
-- `tractor/ipc/_uds.py` - tagged full-path emission.
-- `tractor/msg/types.py` - protocol-neutral spawn tuple containers.
-- `tests/discovery/test_address_serialization.py` - writer assertions.
-- `tests/discovery/test_multiaddr.py` - canonical round-trip assertions.
-- `tests/discovery/test_tpt_bind_addrs.py` - tagged bind assertions.
-- `tests/ipc/test_each_tpt.py` - canonical runtime address assertions.
-- `tests/ipc/test_server_tunnel_boundary.py` - tagged TCP destructuring.
-- `tests/test_local.py` - canonical registry comparison.
-
-## Human edits
-
-The human established the reader-before-writer sequencing, canonical tag
-spellings, retained compatibility expectations, and requested final
-multi-commit packaging. The agent implemented and tested those choices;
-no direct manual source edits were observed.

ai/prompt-io/opencode/20260820T033108Z_ba07e09d_prompt_io.raw.md

@@ -1,26 +0,0 @@
----
-model: gpt-5.6-sol
-service: opencode
-timestamp: 2026-08-20T03:31:08Z
-git_ref: ba07e09d
-diff_cmd: git diff HEAD~1..HEAD
----
-
-# Raw output - canonical tagged address writers
-
-After the reader compatibility boundary, the human asked the agent to
-continue the migration and package the completed work as dependency-
-ordered commits.
-
-> `git diff HEAD~1..HEAD -- tractor/discovery/_addr.py tractor/discovery/_multiaddr.py tractor/ipc/_tcp.py tractor/ipc/_uds.py tractor/msg/types.py tests/discovery/test_address_serialization.py tests/discovery/test_multiaddr.py tests/discovery/test_tpt_bind_addrs.py tests/ipc/test_each_tpt.py tests/ipc/test_server_tunnel_boundary.py tests/test_local.py`
-
-Switched TCP and Unix `.unwrap()` output to canonical tagged tuples,
-updated direct transport and multiaddr consumers, widened spawn message
-tuple containers for protocol-specific shapes, and migrated runtime and
-test comparisons to serialized address equality. Legacy inputs remain
-accepted at `wrap_address()` and backend reader boundaries.
-
-Ruff and focused tests passed. The complete non-debugger TCP suite passed
-with 412 tests; the UDS suite reached 80% without failure before the
-harness timeout, then all 97 remaining tests passed on resume. Debugger
-PTY coverage was excluded after an unrelated timeout.

ai/tpt-backends/00_shared_backend_contract.md

@@ -112,12 +112,7 @@ Hard constraints learned from the existing two:
 - **`.bindspace` semantics**: "the address' bindable space" —
   ip/host for `tcp`, the socket-file *directory* for `uds`. For
   the new backends: the TIPC *scope* (§1 of plan 01), the iroh
-  *ALPN + relay/discovery realm* (plan 02). Do not overload this
-  transport-level bind selector with process namespace lifecycle.
-  Plan 03 augments an maddr/address declaration with a serializable
-  `BindspaceSpec` and a scoped, non-serializable `BindspaceHandle`;
-  the latter owns namespace identity/FD/lifetime and is consumed at
-  spawn bootstrap before a concrete address reaches transport bind.
+  *ALPN + relay/discovery realm* (plan 02), the netns (plan 03).
   `Address.namespace` is already spec'd in the Protocol as
   "the if-available OS-specific network namespace key" and is
   currently unimplemented by both backends — plan 03 is the

ai/tpt-backends/03_wg_tunnel_bindspace.md

@@ -329,109 +329,39 @@ for the overlay application socket.
 
 ### 5.1 the composition
 
-The maddr describes the composed network path and can be used as
-either a source/listen or destination/dial handle. It does **not**
-select the local instance of that network stack. A netns, VRF,
-interface, user namespace, or equivalent platform resource is
-orthogonal augmentation carried alongside/below the maddr.
-
-Keep two bindspace representations with deliberately different
-lifetimes:
-
 ```python
-class BindspaceSpec(msgspec.Struct, frozen=True):
-    '''Serializable spawn/config declaration.'''
-    kind: str                 # `netns`, later `vrf`, ...
-    key: str|None             # requested name/key, if any
-
-
-class BindspaceIdentity(msgspec.Struct, frozen=True):
-    '''Stable identity of the realized platform resource.'''
-    kind: str
-    key: str|None
-    inode: int|None           # Linux namespace identity
-
-
-class BindspaceHandle:
-    '''Scoped, non-serializable capability for one live bindspace.'''
-    spec: BindspaceSpec
-    identity: BindspaceIdentity
-    namespace_fd: int|None
-    ownership: Literal['owned', 'borrowed']
-
-
 @acm
 async def open_bindspace(
-    spec: BindspaceSpec,
-    *,
-    role: Literal['listen', 'dial'],
-) -> AsyncGenerator[BindspaceHandle, None]:
+    addr: TunnelledAddress,
+) -> AsyncGenerator[Address, None]:
     '''
-    Provision/borrow one bindspace and yield its live capability.
+    Enter the net-bindspace implied by `addr`'s tunnel stack,
+    yielding the *overlay* `Address` ready to bind/connect.
+
+    Nests: one `@acm` per tunnel segment, outermost-first, so
+    a 2-deep stack is just two nested `async with`s and the
+    teardown order is guaranteed by `trio`.
 
     '''
 ```
 
-The exact field set remains design work; the required split does not:
-`BindspaceSpec` crosses config/spawn serialization, while
-`BindspaceHandle` contains live OS resources (especially an open
-namespace FD), pins identity/lifetime, and must never cross msgpack.
-An FD is a stronger capability than a namespace name: it avoids
-name-resolution TOCTOU, survives rename/unlink, and identifies the
-exact namespace the parent provisioned.
-
-`open_bindspace()` is **not** an address factory and does not return a
-`TunnelledAddress`. At the declaration layer, listener allocation can
-use the handle to replace an overlay while preserving every tunnel:
-
-```python
-async with open_bindspace(
-    bindspace_spec,
-    role='listen',
-) as bindspace:
-    listen_decl = declared_addr.get_random(
-        bindspace=bindspace,
-    )
-    transport_addr = strip_tunnels(listen_decl)
-```
-
-That sketch intentionally leaves the `.get_random()`/bindspace value
-contract open. A concrete transport call returns a concrete overlay;
-a declaration-level call may replace the overlay and return a new
-`TunnelledAddress`. In either case wrappers remain until the final
-transport bind/dial boundary, where `strip_tunnels()` is mandatory.
-
-Per-platform provisioning still composes one resource context per
-tunnel/bindspace layer:
+with per-tunnel-kind implementations:
 
 ```python
 @acm
-async def open_netns(
-    spec: BindspaceSpec,
-    role: Literal['listen', 'dial'],
-) -> AsyncGenerator[BindspaceHandle, None]: ...
-
+async def open_netns(name: str) -> AsyncGenerator[None, None]: ...
 @acm
-async def open_wg_iface(
-    spec: WGTunnelSpec,
-    bindspace: BindspaceHandle,
-    role: Literal['listen', 'dial'],
-) -> AsyncGenerator[WGTunnelSpec, None]: ...
+async def open_wg_iface(spec: WGTunnelSpec) -> AsyncGenerator[WGTunnelSpec, None]: ...
 ```
 
 and a driver that folds a list of specs into nested contexts
 (`contextlib.AsyncExitStack` for the N-deep case). The
 `parse_endpoints()` API (`_multiaddr.py:153`) is the front door:
-it already returns
-`dict[name, list[Address|TunnelledAddress]]` and the
+it already returns `dict[name, list[Address]]` and the
 `multiaddr_declare_eps.md` sketch anticipates the recursive
 `dict[str, list[Address]]|dict[...]` return for tunnelled
 entries. Extend it to carry the tunnel stack, not to *enter* it.
 
-The caller supplies `role`; do not infer it from maddr shape. The same
-composed maddr can name a server source or client destination, and the
-required local provisioning/ownership differs (§5.3).
-
 ### 5.2 `Address.namespace`, at last
 
 - `TunnelledAddress.namespace` → `(kind, id)` e.g.
@@ -447,13 +377,6 @@ required local provisioning/ownership differs (§5.3).
   `Endpoint.pformat()`, `_server.py:645`). Fill that in; it's
   the cheapest possible proof the layer is wired.
 
-Use `github/ns_aware@e4688cad` as prototype evidence, not code to
-cherry-pick unchanged. Its `/proc/<pid>/ns/<type>` inode reader and
-`ip netns identify` probe establish the useful `(key, inode)` identity
-pair. Layer C should move that shape into `BindspaceIdentity`, avoid a
-subprocess where netlink/procfs suffices, and hold the namespace FD in
-`BindspaceHandle` to pin the identity.
-
 ### 5.3 the netns/process reality — read this before designing
 
 **The headline consequence, stated up front**: netns is a
@@ -481,52 +404,26 @@ server bound in the old namespace.
 - entering a netns is *process-global-ish and irreversible-ish*
   in practice. Therefore: **netns membership belongs to the
   actor process, decided before the runtime binds**, not to a
-  mid-life actor API. Design:
-  - the root/parent decides the `BindspaceSpec`, provisions or
-    borrows it, and passes the spec plus an inherited/transferred
-    namespace-FD capability through the spawn backend (there's already
+  mid-life `@acm`. Design:
+  - the root/parent decides the netns for a subactor and passes
+    it in the spawn spec (there's already
     `enable_transports`/`accept_addrs` plumbing at
     `_runtime.py:1595-1615` — the netns rides alongside).
-  - the child spawn/bootstrap trampoline calls `setns()` **before**
-    `_runtime.async_main()`, `IPCServer.listen_on()`, parent-channel
-    connection, or creation of any worker thread/socket.
-  - only after successful entry does the child drop namespace-entry
-    privileges and initialize the actor runtime.
-  - a root/single-actor process follows the same ordering: enter during
-    root bootstrap, never after actor runtime startup.
-  - iface/route/WG provisioning is genuinely scoped and remains under
-    the parent/supervisor's `BindspaceHandle` context.
+  - the child, in `_runtime.async_main()` **before**
+    `IPCServer.listen_on()`, enters it.
+  - the mid-life `@acm` form is then only for the *root* /
+    single-actor case, and for iface creation (which is
+    genuinely scoped).
   - document the constraint rather than hiding it; a
-    `RuntimeError` if namespace entry is attempted after bootstrap.
-- capabilities: iface/netns creation/config needs `CAP_NET_ADMIN`;
-  entering an existing Linux namespace normally requires
-  `CAP_SYS_ADMIN` in the owning user namespace. Never `sudo` from
-  inside the runtime. A privileged parent/helper should provision the
-  stack and open the namespace FD; the child receives only the scoped
-  capability and temporary authority needed to enter it, then drops
-  that authority before actor code runs. This separates create/config
-  authority from enter/use authority and fits user-namespace/capability
-  deployments without granting every actor broad ambient caps.
-  Two supported modes remain:
+    `RuntimeError` if `open_netns()` is entered after any
+    listener exists.
+- privileges: iface/netns creation needs `CAP_NET_ADMIN`.
+  Never `sudo` from inside the runtime. Two supported modes:
   (i) pre-provisioned out-of-band (layers A/B — the default,
-  and what #482 documents), (ii) runtime-managed when the supervising
-  process/helper holds the required caps. Probe exact required caps and
-  *fail loudly with an actionable message* otherwise.
-- role semantics are explicit:
-  - `listen`: may create/own the local bindspace, iface, routes, WG
-    peer/listener state, and random local overlay; lifetime normally
-    extends through all listeners and the actor process.
-  - `dial`: may borrow an actor-wide bindspace or ensure local routing
-    and tunnel state reaches the remote stack; it does not own the
-    remote maddr and may need no new local resource at all.
-  - source/destination use is an operation property, never permanently
-    encoded into the maddr or inferred from segment ordering.
-- teardown follows capability ownership, not just address type:
-  - owned listener bindspaces tear down after endpoints/channels and
-    the actor process have exited;
-  - borrowed dial/actor-wide bindspaces only release their handle;
-  - nested resources exit inside-out, but shared resources remain until
-    their owning supervisor drops the final capability.
+  and what #482 documents), (ii) runtime-managed when the
+  process already holds the cap. Detect with a cheap
+  `os.geteuid()==0 or CAP_NET_ADMIN in /proc/self/status`
+  probe and *fail loudly with an actionable message* otherwise.
 - teardown must be idempotent and tolerant: an iface/netns
   already gone must not strand the rest of the teardown — the
   exact lesson `_uds.close_listener()`'s `FileNotFoundError`
@@ -545,13 +442,6 @@ server bound in the old namespace.
   self-contained — no second host, no `sudo` in the test body.
 - the `to_thread`-netns-mismatch regression from §5.3, written
   **first** (red), then the fix (green), per project convention.
-- bootstrap ordering: assert the child reports the expected namespace
-  inode before parent-channel connect and listener creation.
-- FD capability: rename/unlink the namespace name after opening its FD
-  and prove child entry still selects the pinned inode.
-- privilege drop: prove actor code lacks provisioning caps after entry.
-- role/ownership: fake listen/dial resources and assert owned listener
-  teardown versus borrowed dial-handle release.
 
 ---
 
@@ -585,12 +475,8 @@ consider doing it *first* for exactly that reason.
 | risk | mitigation |
 | --- | --- |
 | `to_thread` worker runs in the wrong netns | §5.3; pass `netns=` to pyroute2 or pin a worker; test-first |
-| namespace name is renamed/replaced between provision and spawn | pass an open namespace FD; verify `(key, inode)` after child entry |
-| child starts sockets/threads before `setns()` | enter in the spawn bootstrap trampoline before `_runtime.async_main()`; assert inode ordering |
-| ambient capabilities leak into actor app code | split provision/enter authority and drop caps before runtime initialization |
-| dial path tears down a shared actor bindspace | encode ownership in `BindspaceHandle`; borrowed handles never remove resources |
 | py-multiaddr#108 merged but unreleased | PEP 621 direct-revision pin + `_wg_proto_code()` gate; replace with a release floor once published |
-| `TunnelledAddress` leaks into transport reflection/type dispatch | keep wrappers through declaration/bindspace handling, call `strip_tunnels()` at channel/endpoint boundaries, and retain the boundary regressions |
+| `TunnelledAddress` leaks into `Endpoint` and breaks `inspect.getmodule()` | unwrap at parse/bindspace boundary; assert `not isinstance(ep.addr, TunnelledAddress)` in `Endpoint.__post_init__` |
 | privileged ops in a library | never `sudo`; explicit cap probe + actionable error; pre-provisioned is the default |
 | pyroute2 0.9 asyncio core drags a loop into the actor | option (1) is a *thread*, not a loop; forbid `trio-asyncio` here (§4.1) |
 | netns teardown strands actor teardown | idempotent/tolerant teardown mirroring `_uds.close_listener()` |

tests/discovery/test_address_serialization.py

@@ -1,100 +0,0 @@
-'''
-Canonical tagged-address decoding and legacy input compatibility.
-
-'''
-from pathlib import Path
-
-import pytest
-
-from tractor.discovery._addr import wrap_address
-from tractor.ipc._tcp import TCPAddress
-from tractor.ipc._uds import UDSAddress
-
-
-@pytest.mark.parametrize(
-    'value',
-    [
-        ('tcp', '127.0.0.1', 1616),
-        ['tcp', '127.0.0.1', 1616],
-    ],
-)
-def test_decode_tagged_tcp_address(value):
-    '''
-    Shape-only decoding cannot distinguish future transport address
-    forms. Feed canonical tuple and msgpack-style list values through
-    the compatibility boundary and prove the explicit `tcp` tag
-    selects the TCP backend and emits the canonical tagged form.
-
-    '''
-    addr = wrap_address(value)
-
-    assert type(addr) is TCPAddress
-    assert addr.unwrap() == ('tcp', '127.0.0.1', 1616)
-
-
-@pytest.mark.parametrize(
-    'tag',
-    ['unix', 'uds'],
-)
-@pytest.mark.parametrize('container', [tuple, list])
-def test_decode_tagged_unix_address(
-    tag: str,
-    container: type,
-):
-    '''
-    Multiaddr calls the protocol `unix` while tractor's transport key
-    remains `uds`. Decode both spellings from tuple/list containers,
-    normalize them to one `UDSAddress`, and emit the canonical `unix`
-    spelling.
-
-    '''
-    value = container((tag, '/tmp/tractor/registry.sock'))
-    addr = wrap_address(value)
-
-    assert type(addr) is UDSAddress
-    assert addr.sockpath == Path('/tmp/tractor/registry.sock')
-    assert addr.unwrap() == (
-        'unix',
-        '/tmp/tractor/registry.sock',
-    )
-
-
-@pytest.mark.parametrize(
-    'value, expected_type',
-    [
-        (('127.0.0.1', 1616), TCPAddress),
-        (['127.0.0.1', 1616], TCPAddress),
-        (('/tmp/tractor', 'registry.sock'), UDSAddress),
-        (['/tmp/tractor', 'registry.sock'], UDSAddress),
-    ],
-)
-def test_decode_legacy_address_forms(
-    value,
-    expected_type: type,
-):
-    '''
-    Existing callers, config, and older msgpack payloads still
-    provide untagged pairs. Keep tuple/list forms readable while
-    canonical tagged emission is introduced, proving the writer
-    migration does not break shipped input behavior.
-
-    '''
-    addr = wrap_address(value)
-
-    assert type(addr) is expected_type
-    assert addr.unwrap()[0] in {'tcp', 'unix'}
-
-
-def test_tcp_from_native_ipv6_sockname():
-    '''
-    `socket.getsockname()` returns a four-item IPv6 sockaddr which is
-    neither a wire form nor a legacy two-item pair. Preserve it as an
-    OS compatibility boundary and intentionally ignore unsupported
-    flow-info/scope-id fields when constructing `TCPAddress`.
-
-    '''
-    addr = TCPAddress.from_addr(
-        ('::1', 1616, 0, 0)
-    )
-
-    assert addr.unwrap() == ('tcp', '::1', 1616)

tests/discovery/test_multiaddr.py

@@ -188,7 +188,7 @@ def test_parse_maddr_tcp_ipv4():
     result = parse_maddr('/ip4/127.0.0.1/tcp/1234')
 
     assert isinstance(result, TCPAddress)
-    assert result.unwrap() == ('tcp', '127.0.0.1', 1234)
+    assert result.unwrap() == ('127.0.0.1', 1234)
 
 
 def test_parse_maddr_tcp_ipv6():
@@ -200,7 +200,7 @@ def test_parse_maddr_tcp_ipv6():
     result = parse_maddr('/ip6/::1/tcp/5678')
 
     assert isinstance(result, TCPAddress)
-    assert result.unwrap() == ('tcp', '::1', 5678)
+    assert result.unwrap() == ('::1', 5678)
 
 
 def test_parse_maddr_uds():
@@ -213,10 +213,9 @@ def test_parse_maddr_uds():
     result = parse_maddr('/unix/tmp/tractor_test/test.sock')
 
     assert isinstance(result, UDSAddress)
-    assert result.unwrap() == (
-        'unix',
-        '/tmp/tractor_test/test.sock',
-    )
+    filedir, filename = result.unwrap()
+    assert filename == 'test.sock'
+    assert str(filedir) == '/tmp/tractor_test'
 
 
 def test_parse_maddr_unsupported():
@@ -250,7 +249,7 @@ def test_parse_wg_maddr():
         bearer=('192.168.1.50', 51820),
     )
     assert isinstance(parsed.overlay, TCPAddress)
-    assert parsed.overlay.unwrap() == ('tcp', '10.0.11.1', 1616)
+    assert parsed.overlay.unwrap() == ('10.0.11.1', 1616)
 
 
 def test_mk_wg_maddr_roundtrip():
@@ -446,7 +445,7 @@ def test_wrap_address_maddr_str():
     result = wrap_address('/ip4/127.0.0.1/tcp/9999')
 
     assert isinstance(result, TCPAddress)
-    assert result.unwrap() == ('tcp', '127.0.0.1', 9999)
+    assert result.unwrap() == ('127.0.0.1', 9999)
 
 
 def test_wrap_address_wg_maddr_str():
@@ -461,7 +460,7 @@ def test_wrap_address_wg_maddr_str():
 
     assert isinstance(result, TunnelledAddress)
     assert result.tunnel.peer_pubkey == _WG_PUBKEY
-    assert result.overlay.unwrap() == ('tcp', '10.0.11.1', 1616)
+    assert result.overlay.unwrap() == ('10.0.11.1', 1616)
 
 
 # ------ parse_endpoints() tests ------
@@ -482,11 +481,11 @@ def test_parse_endpoints_tcp_only():
 
     reg_addr = result['registry'][0]
     assert isinstance(reg_addr, TCPAddress)
-    assert reg_addr.unwrap() == ('tcp', '127.0.0.1', 1616)
+    assert reg_addr.unwrap() == ('127.0.0.1', 1616)
 
     feed_addr = result['data_feed'][0]
     assert isinstance(feed_addr, TCPAddress)
-    assert feed_addr.unwrap() == ('tcp', '0.0.0.0', 5555)
+    assert feed_addr.unwrap() == ('0.0.0.0', 5555)
 
 
 def test_parse_endpoints_mixed_tpts():
@@ -506,13 +505,12 @@ def test_parse_endpoints_mixed_tpts():
 
     assert len(addrs) == 2
     assert isinstance(addrs[0], TCPAddress)
-    assert addrs[0].unwrap() == ('tcp', '127.0.0.1', 4040)
+    assert addrs[0].unwrap() == ('127.0.0.1', 4040)
 
     assert isinstance(addrs[1], UDSAddress)
-    assert addrs[1].unwrap() == (
-        'unix',
-        '/tmp/tractor/broker.sock',
-    )
+    filedir, filename = addrs[1].unwrap()
+    assert filename == 'broker.sock'
+    assert str(filedir) == '/tmp/tractor'
 
 
 def test_parse_endpoints_wg_maddr():
@@ -552,7 +550,7 @@ def test_parse_endpoints_unwrapped_tuples():
 
     addr = result['ems'][0]
     assert isinstance(addr, TCPAddress)
-    assert addr.unwrap() == ('tcp', '127.0.0.1', 6666)
+    assert addr.unwrap() == ('127.0.0.1', 6666)
 
 
 def test_parse_endpoints_mixed_str_and_tuple():
@@ -572,10 +570,10 @@ def test_parse_endpoints_mixed_str_and_tuple():
 
     assert len(addrs) == 2
     assert isinstance(addrs[0], TCPAddress)
-    assert addrs[0].unwrap() == ('tcp', '127.0.0.1', 7777)
+    assert addrs[0].unwrap() == ('127.0.0.1', 7777)
 
     assert isinstance(addrs[1], TCPAddress)
-    assert addrs[1].unwrap() == ('tcp', '127.0.0.1', 8888)
+    assert addrs[1].unwrap() == ('127.0.0.1', 8888)
 
 
 def test_parse_endpoints_unsupported_proto():

tests/discovery/test_tpt_bind_addrs.py

@@ -183,7 +183,7 @@ def test_non_registrar_root_tpt_bind_addrs(
             for uw_addr in bound:
                 w = wrap_address(uw_addr)
                 if w.proto_key == 'tcp':
-                    _, _host, port = uw_addr
+                    _host, port = uw_addr
                     assert port > 0
 
     trio.run(_main)
@@ -255,7 +255,7 @@ def test_tpt_bind_addrs_as_maddr_str(
             for uw_addr in actor.accept_addrs:
                 w = wrap_address(uw_addr)
                 if w.proto_key == 'tcp':
-                    _, _host, port = uw_addr
+                    _host, port = uw_addr
                     assert port > 0
 
     trio.run(_main)
@@ -287,7 +287,7 @@ def test_registrar_merge_binds_union(
     # actually differ (always true for TCP, may
     # collide for UDS).
     expect_disjoint: bool = (
-        reg_wrapped.unwrap() != rando.unwrap()
+        tuple(reg_addr) != rando.unwrap()
     )
 
     async def _main():

tests/ipc/test_channel_tunnel_boundary.py

@@ -1,91 +0,0 @@
-'''
-Tunnel annotation peeling at the outbound IPC transport boundary.
-
-'''
-from __future__ import annotations
-
-import pytest
-import trio
-
-from tractor.discovery import (
-    TunnelledAddress,
-    WGTunnelSpec,
-    tunnels_of,
-)
-from tractor.ipc import _chan
-from tractor.ipc._tcp import TCPAddress
-
-
-_PUBKEY: str = 'g3x7z0AdV1rM6UQU22CC7IL3/ivn4DzrE7ikDhCZ/Dc='
-
-
-@pytest.fixture
-def overlay() -> TCPAddress:
-    return TCPAddress('127.0.0.1', 0)
-
-
-@pytest.fixture
-def tunnelled(
-    overlay: TCPAddress,
-) -> TunnelledAddress:
-    return TunnelledAddress(
-        overlay=overlay,
-        tunnel=WGTunnelSpec(
-            peer_pubkey=_PUBKEY,
-            bearer=('192.168.1.50', 51820),
-        ),
-    )
-
-
-@pytest.mark.parametrize('use_tunnel', [False, True])
-def test_channel_peels_before_transport_dispatch(
-    monkeypatch,
-    overlay: TCPAddress,
-    tunnelled: TunnelledAddress,
-    use_tunnel: bool,
-):
-    '''
-    Exact-type transport lookup cannot dispatch a `TunnelledAddress`,
-    and passing one onward would make TCP dial the wrong object. Feed
-    both a plain overlay and its annotated wrapper into
-    `Channel.from_addr()`, capture lookup and connect arguments, and
-    prove both transport operations receive only the same bindable
-    TCP address while the caller's tunnel metadata remains intact.
-
-    '''
-    seen: list[tuple[str, TCPAddress]] = []
-
-    class FakeTransport:
-        @classmethod
-        async def connect_to(
-            cls,
-            addr: TCPAddress,
-            **kwargs,
-        ) -> FakeTransport:
-            seen.append(('connect', addr))
-            return cls()
-
-    def fake_transport_from_addr(
-        addr: TCPAddress,
-    ) -> type[FakeTransport]:
-        seen.append(('lookup', addr))
-        return FakeTransport
-
-    monkeypatch.setattr(
-        _chan,
-        'transport_from_addr',
-        fake_transport_from_addr,
-    )
-
-    async def main() -> None:
-        declared = tunnelled if use_tunnel else overlay
-        chan = await _chan.Channel.from_addr(declared)
-        assert isinstance(chan.transport, FakeTransport)
-
-    trio.run(main)
-
-    assert seen == [
-        ('lookup', overlay),
-        ('connect', overlay),
-    ]
-    assert tunnels_of(tunnelled) == (tunnelled.tunnel,)

tests/ipc/test_each_tpt.py

@@ -57,20 +57,17 @@ def test_uds_bindspace_created_implicitly(
 
             root: Actor = tractor.current_actor()
             assert root.is_registrar
-            canonical_addr = _addr.wrap_address(
-                registry_addr,
-            ).unwrap()
 
-            assert canonical_addr in root.reg_addrs
+            assert registry_addr in root.reg_addrs
             assert (
-                canonical_addr
+                registry_addr
                 in
                 _state._runtime_vars['_registry_addrs']
             )
             assert (
-                canonical_addr
+                _addr.wrap_address(registry_addr)
                 in
-                [addr.unwrap() for addr in root.registry_addrs]
+                root.registry_addrs
             )
 
     trio.run(main)

tests/ipc/test_server_tunnel_boundary.py

@@ -1,59 +0,0 @@
-'''
-Tunnel annotation peeling at the inbound IPC transport boundary.
-
-'''
-from __future__ import annotations
-
-import trio
-
-from tractor.discovery import (
-    TunnelledAddress,
-    WGTunnelSpec,
-    tunnels_of,
-)
-from tractor.ipc._server import open_ipc_server
-from tractor.ipc._tcp import TCPAddress
-
-
-_PUBKEY: str = 'g3x7z0AdV1rM6UQU22CC7IL3/ivn4DzrE7ikDhCZ/Dc='
-
-
-def test_server_peels_before_endpoint_construction():
-    '''
-    `Endpoint.start_listener()` reflects on its address's declaring
-    module, so retaining a tunnel wrapper there selects `._tunnel`
-    instead of the TCP backend. Start a real listener from the
-    wrapper, assert the resulting `Endpoint` contains only a resolved
-    `TCPAddress`, and prove the original declaration still carries
-    its tunnel spec for the future bindspace lifecycle.
-
-    '''
-    overlay = TCPAddress('127.0.0.1', 0)
-    tunnelled = TunnelledAddress(
-        overlay=overlay,
-        tunnel=WGTunnelSpec(
-            peer_pubkey=_PUBKEY,
-            bearer=('192.168.1.50', 51820),
-        ),
-    )
-
-    async def main() -> None:
-        async with open_ipc_server() as server:
-            eps = await server.listen_on(
-                accept_addrs=[tunnelled],
-            )
-            assert len(eps) == 1
-            endpoint = eps[0]
-
-            assert type(endpoint.addr) is TCPAddress
-            _, host, port = endpoint.addr.unwrap()
-            assert host == overlay.unwrap()[1]
-            assert port > 0
-            assert endpoint.addr is not tunnelled
-            assert tunnels_of(tunnelled) == (
-                tunnelled.tunnel,
-            )
-
-            server.cancel()
-
-    trio.run(main)

tests/test_local.py

@@ -8,7 +8,6 @@ import trio
 import tractor
 
 from tractor._testing import tractor_test
-from tractor.discovery._addr import wrap_address
 
 
 def test_no_runtime():
@@ -49,7 +48,7 @@ async def test_self_is_registered_localportal(reg_addr):
         with trio.fail_after(0.2):
             sockaddr = await portal.run_from_ns(
                     'self', 'wait_for_actor', name='root')
-            assert sockaddr[0] == wrap_address(reg_addr).unwrap()
+            assert sockaddr[0] == reg_addr
 
 
 def test_local_actor_async_func(reg_addr):

tractor/_root.py

@@ -57,7 +57,6 @@ from .discovery._addr import (
     mk_uuid,
     wrap_address,
 )
-from .discovery._tunnel import strip_tunnels
 from .trionics import (
     is_multi_cancelled,
     collapse_eg,
@@ -535,7 +534,6 @@ async def open_root_actor(
             # proto if not already provided.
             if not tpt_bind_addrs:
                 for addr in ponged_addrs:
-                    bindable_addr: Address = strip_tunnels(addr)
                     tpt_bind_addrs.append(
                         # XXX, these are `Address` NOT `UnwrappedAddress`.
                         #
@@ -543,8 +541,8 @@ async def open_root_actor(
                         # protos we allocate port=0 such that the system
                         # allocates a random value at bind time; this
                         # happens in the `.ipc.*` stack's backend.
-                        bindable_addr.get_random(
-                            bindspace=bindable_addr.bindspace,
+                        addr.get_random(
+                            bindspace=addr.bindspace,
                         )
                     )
 

tractor/discovery/_addr.py

@@ -18,9 +18,7 @@ from uuid import uuid4
 from typing import (
     Protocol,
     ClassVar,
-    Literal,
     Type,
-    TypeAlias,
     TYPE_CHECKING,
 )
 
@@ -66,44 +64,25 @@ log = get_logger()
 #    seems like the right name as per,
 #    https://www.geeksforgeeks.org/introduction-to-address-descriptor/
 #
-TaggedTCPAddress: TypeAlias = tuple[
-    Literal['tcp'],
-    str,
-    int,
-]
-TaggedUnixAddress: TypeAlias = tuple[
-    Literal['unix'],
-    str,
-]
-TaggedUDSAlias: TypeAlias = tuple[
-    Literal['uds'],
-    str,
-]
-TaggedAddress: TypeAlias = (
-    TaggedTCPAddress
-    |TaggedUnixAddress
+UnwrappedAddress = (
+    # tcp/udp/uds
+    tuple[
+        str,  # host/domain(tcp), filesys-dir(uds)
+        int|str,  # port/path(uds)
+    ]
+    # ?TODO? should we also include another 2 fields from
+    # our `Aid` msg such that we include the runtime `Actor.uid`
+    # of `.name` and `.uuid`?
+    # - would ensure uniqueness across entire net?
+    # - allows for easier runtime-level filtering of "actors by
+    #   service name"
 )
 
-# Input-only compatibility forms retained for older callers and
-# serialized payloads.
-LegacyTCPAddress: TypeAlias = tuple[str, int]
-LegacyUDSAddress: TypeAlias = tuple[str, str]
-LegacyUnwrappedAddress: TypeAlias = (
-    LegacyTCPAddress
-    |LegacyUDSAddress
-)
-UnwrappedAddress = TaggedAddress
-# ?TODO? should we also include another 2 fields from our `Aid` msg
-# such that we include the runtime `Actor.uid` of `.name` and `.uuid`?
-# - would ensure uniqueness across entire net?
-# - allows for easier runtime-level filtering of "actors by service
-#   name"
-
 
 # TODO, maybe rename to `SocketAddress`?
 class Address(Protocol):
     proto_key: ClassVar[str]
-    unwrapped_type: ClassVar[type]
+    unwrapped_type: ClassVar[UnwrappedAddress]
 
     # TODO, i feel like an `.is_bound()` is a better thing to
     # support?
@@ -237,15 +216,7 @@ def mk_uuid() -> str:
 
 
 def wrap_address(
-    addr: (
-        TaggedAddress
-        |TaggedUDSAlias
-        |LegacyUnwrappedAddress
-        |list[str|int]
-        |str
-        |Address
-        |TunnelledAddress
-    ),
+    addr: UnwrappedAddress|str|Address|TunnelledAddress,
 ) -> Address|TunnelledAddress:
     '''
     Wrap an `UnwrappedAddress` as an `Address`-type based
@@ -268,20 +239,6 @@ def wrap_address(
     #     import pdbp; pdbp.set_trace()
     match addr:
 
-        case (
-            ('tcp', str(), int())
-            |
-            ['tcp', str(), int()]
-        ):
-            return TCPAddress.from_addr(addr)
-
-        case (
-            (('unix' | 'uds'), str())
-            |
-            [('unix' | 'uds'), str()]
-        ):
-            return UDSAddress.from_addr(addr)
-
         # classic network socket-address as tuple/list
         case (
             (str(), int())

tractor/discovery/_multiaddr.py

@@ -73,7 +73,7 @@ def mk_maddr(
 
     match proto_key:
         case 'tcp':
-            _, host, port = addr.unwrap()
+            host, port = addr.unwrap()
             ip = ipaddress.ip_address(host)
             net_proto: str = (
                 'ip4' if ip.version == 4
@@ -84,12 +84,13 @@ def mk_maddr(
             )
 
         case 'uds':
-            _, sockpath = addr.unwrap()
+            filedir, filename = addr.unwrap()
+            filepath = Path(filedir) / filename
             # NOTE, strip any leading `/` to avoid
             # double-slash `/unix//run/..` which the
             # multiaddr parser rejects as "empty
             # protocol path".
-            fpath_str: str = sockpath.lstrip('/')
+            fpath_str: str = str(filepath).lstrip('/')
             return Multiaddr(
                 f'/{maddr_proto}/{fpath_str}'
             )

tractor/ipc/_chan.py

@@ -45,10 +45,6 @@ from tractor.discovery._addr import (
     Address,
     UnwrappedAddress,
 )
-from tractor.discovery._tunnel import (
-    TunnelledAddress,
-    strip_tunnels,
-)
 from tractor.log import get_logger
 from tractor._exceptions import (
     MsgTypeError,
@@ -185,17 +181,16 @@ class Channel:
     @classmethod
     async def from_addr(
         cls,
-        addr: UnwrappedAddress|Address|TunnelledAddress,
+        addr: UnwrappedAddress,
         **kwargs
     ) -> Channel:
 
         if not is_wrapped_addr(addr):
-            addr = wrap_address(addr)
+            addr: Address = wrap_address(addr)
 
-        transport_addr: Address = strip_tunnels(addr)
-        transport_cls = transport_from_addr(transport_addr)
+        transport_cls = transport_from_addr(addr)
         transport = await transport_cls.connect_to(
-            transport_addr,
+            addr,
             **kwargs,
         )
         # XXX, for UDS *no!* since we recv the peer-pid and build out
@@ -523,7 +518,7 @@ class Channel:
 
 @acm
 async def _connect_chan(
-    addr: UnwrappedAddress|Address|TunnelledAddress,
+    addr: UnwrappedAddress
 ) -> typing.AsyncGenerator[Channel, None]:
     '''
     Create and connect a `Channel` to the provided `addr`, disconnect

tractor/ipc/_server.py

@@ -59,17 +59,13 @@ from ..msg import (
 from ..trionics import maybe_open_nursery
 from ..runtime import _state
 from .. import log
-from ..discovery._addr import (
-    Address,
-    UnwrappedAddress,
-)
+from ..discovery._addr import Address
 from ._chan import Channel
 from ._transport import MsgTransport
 from ._uds import UDSAddress
 from ._tcp import TCPAddress
 
 if TYPE_CHECKING:
-    from ..discovery._tunnel import TunnelledAddress
     from ..runtime._runtime import Actor
     from ..runtime._supervise import ActorNursery
 
@@ -963,9 +959,7 @@ class Server(Struct):
     async def listen_on(
         self,
         *,
-        accept_addrs: list[
-            UnwrappedAddress|Address|TunnelledAddress
-        ]|None = None,
+        accept_addrs: list[tuple[str, int|str]]|None = None,
         stream_handler_nursery: Nursery|None = None,
     ) -> list[Endpoint]:
         '''
@@ -1048,7 +1042,7 @@ async def _serve_ipc_eps(
     *,
     server: IPCServer,
     stream_handler_tn: Nursery,
-    listen_addrs: list[Address|TunnelledAddress],
+    listen_addrs: list[tuple[str, int|str]],
 
     task_status: TaskStatus[
         Nursery,
@@ -1064,8 +1058,6 @@ async def _serve_ipc_eps(
     `.cancel_server()` is called.
 
     '''
-    from ..discovery._tunnel import strip_tunnels
-
     try:
         listen_tn: Nursery
         async with trio.open_nursery() as listen_tn:
@@ -1074,8 +1066,7 @@ async def _serve_ipc_eps(
             # XXX NOTE, required to call `serve_listeners()` below.
             # ?TODO, maybe just pass `list(eps.values()` tho?
             listeners: list[trio.abc.Listener] = []
-            for declared_addr in listen_addrs:
-                addr: Address = strip_tunnels(declared_addr)
+            for addr in listen_addrs:
                 ep = Endpoint(
                     addr=addr,
                     listen_tn=listen_tn,

tractor/ipc/_tcp.py

@@ -21,7 +21,6 @@ from __future__ import annotations
 import ipaddress
 from typing import (
     ClassVar,
-    TYPE_CHECKING,
 )
 # from contextlib import (
 #     asynccontextmanager as acm,
@@ -43,9 +42,6 @@ from tractor.ipc._transport import (
     MsgpackTransport,
 )
 
-if TYPE_CHECKING:
-    from tractor.discovery._addr import TaggedTCPAddress
-
 
 log = get_logger()
 
@@ -66,7 +62,7 @@ class TCPAddress(
             ) from valerr
 
     proto_key: ClassVar[str] = 'tcp'
-    unwrapped_type: ClassVar[type] = tuple
+    unwrapped_type: ClassVar[type] = tuple[str, int]
     def_bindspace: ClassVar[str] = '127.0.0.1'
 
     # ?TODO, actually validate ipv4/6 with stdlib's `ipaddress`
@@ -108,35 +104,19 @@ class TCPAddress(
     @classmethod
     def from_addr(
         cls,
-        addr: tuple|list,
+        addr: tuple[str, int]
     ) -> TCPAddress:
         match addr:
-            case (
-                ('tcp', str() as host, int() as port)
-                |
-                ['tcp', str() as host, int() as port]
-                |
-                (str() as host, int() as port)
-                |
-                [str() as host, int() as port]
-                |
-                (
-                    str() as host,
-                    int() as port,
-                    int(),
-                    int(),
-                )
-            ):
-                return TCPAddress(host, port)
+            case (str(), int()):
+                return TCPAddress(addr[0], addr[1])
             case _:
                 raise ValueError(
                     f'Invalid unwrapped address for {cls}\n'
                     f'{addr}\n'
                 )
 
-    def unwrap(self) -> TaggedTCPAddress:
+    def unwrap(self) -> tuple[str, int]:
         return (
-            self.proto_key,
             self._host,
             self._port,
         )
@@ -235,8 +215,7 @@ class MsgpackTCPStream(MsgpackTransport):
         **kwargs
     ) -> MsgpackTCPStream:
         stream = await trio.open_tcp_stream(
-            destaddr._host,
-            destaddr._port,
+            *destaddr.unwrap(),
             **kwargs
         )
         return MsgpackTCPStream(

tractor/ipc/_uds.py

@@ -63,7 +63,6 @@ from tractor.runtime._state import (
 )
 
 if TYPE_CHECKING:
-    from tractor.discovery._addr import TaggedUnixAddress
     from tractor.runtime._runtime import Actor
 
 
@@ -115,7 +114,7 @@ class UDSAddress(
     # -[ ] need to check what other mult-transport frameworks do
     #     like zmq, nng, uri-spec et al!
     proto_key: ClassVar[str] = 'uds'
-    unwrapped_type: ClassVar[type] = tuple
+    unwrapped_type: ClassVar[type] = tuple[str, int]
     def_bindspace: ClassVar[Path] = get_rt_dir()
 
     @property
@@ -133,7 +132,7 @@ class UDSAddress(
 
     @property
     def sockpath(self) -> Path:
-        return Path(self.bindspace) / self.filename
+        return self.bindspace / self.filename
 
     @property
     def is_valid(self) -> bool:
@@ -147,26 +146,16 @@ class UDSAddress(
     def from_addr(
         cls,
         addr: (
-            tuple|list|Path|str
+            tuple[Path|str, Path|str]|Path|str
         ),
     ) -> UDSAddress:
         match addr:
-            case (
-                (('unix' | 'uds'), str()|Path() as sockpath)
-                |
-                [('unix' | 'uds'), str()|Path() as sockpath]
-            ):
-                path = Path(sockpath)
-                return UDSAddress(*unwrap_sockpath(path))
-
-            case (
-                (str()|Path() as filedir, str()|Path() as filename)
-                |
-                [str()|Path() as filedir, str()|Path() as filename]
-            ):
+            case tuple()|list():
+                filedir = Path(addr[0])
+                filename = Path(addr[1])
                 return UDSAddress(
-                    filedir=Path(filedir),
-                    filename=Path(filename),
+                    filedir=filedir,
+                    filename=filename,
                     # maybe_pid=pid,
                 )
             # NOTE, in case we ever decide to just `.unwrap()`
@@ -181,10 +170,12 @@ class UDSAddress(
                     f'{addr!r}\n'
                 )
 
-    def unwrap(self) -> TaggedUnixAddress:
+    def unwrap(self) -> tuple[str, int]:
+        # XXX NOTE, since this gets passed DIRECTLY to
+        # `.ipc._uds.open_unix_socket_w_passcred()`
         return (
-            'unix',
-            str(self.sockpath),
+            str(self.filedir),
+            str(self.filename),
         )
 
     @classmethod

tractor/msg/types.py

@@ -211,11 +211,10 @@ class SpawnSpec(
     # module import capability
     enable_modules: dict[str, str]
 
-    # Tagged addresses have protocol-specific tuple shapes which
-    # msgspec cannot express as one decodable union. `wrap_address()`
-    # validates each tuple at the transport boundary.
-    reg_addrs: list[tuple]
-    bind_addrs: list[tuple]|None
+    # TODO: not just sockaddr pairs?
+    # -[ ] abstract into a `TransportAddr` type?
+    reg_addrs: list[tuple[str, str|int]]
+    bind_addrs: list[tuple[str, str|int]]|None
 
 
 # TODO: caps based RPC support in the payload?