Commit Graph

2943 Commits (c7451bb2cbf0df73568ad256a5bfe6f8adda7ac3)

Author SHA1 Message Date
Gud Boi c7451bb2cb Support nested `wg` maddrs
Teach discovery to preserve WireGuard bearer and identity metadata
around a bindable TCP overlay.

Deats,
- encode `wg(8)` keys as strict 32-byte multibase values
- peel nested stacks with `Multiaddr.decapsulate_code()` and compose
  them with `.encapsulate()` instead of splitting strings
- integrate wrappers with `parse_maddr()`, `mk_maddr()`,
  `wrap_address()` and `parse_endpoints()`
- pin the unreleased py-multiaddr#108 codec in package metadata
- cover exact round trips, nesting, bad grammar and missing codecs

Prompt-IO: ai/prompt-io/opencode/20260818T075031Z_dd02c7c0_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 22:03:03 -04:00
Gud Boi fa8067f79f Add `TunnelledAddress` wrapper primitives
Introduce the first layer-A address type from the `wg` bindspace
plan without treating a transparent tunnel as a `MsgTransport`.

Deats,
- add frozen `WGTunnelSpec` and `TunnelledAddress` structs which
  delegate proto identity, bindspace, validity and wire
  serialization to their overlay
- add `strip_tunnels()` and `tunnels_of()` for nested wrappers
- recognize wrappers in `is_wrapped_addr()` while keeping them out
  of `_address_types`
- cover delegation, namespace fallback and nested peeling semantics

Also,
- widen `Address.namespace` ids for named netns
- export the new discovery API
- clarify that tractor's layer-C bindspace lifecycle may provision
  the kernel-owned bearer without making it a `MsgTransport`

Prompt-IO: ai/prompt-io/opencode/20260818T021729Z_d9a6e2e9_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 22:03:03 -04:00
Gud Boi 768b531662 Retract the hand-rolled tunnel peeler from plan-03
§3.2 specced a pure fn `_peel_tunnel_segs(proto_names) ->
(bearer_names, tunnel_specs, overlay_names)` to split a maddr at
its tunnel seg. It should never be written: `py-multiaddr` ships
that whole surface already and the plan simply missed it, even
though gh #443's 2nd bullet links the README sections in
question.

Replaced w/ a ⚠️ CORRECTION carrying the verified API table
(`.decapsulate_code(P_WG)` for the bearer, `.split()`/`.join()`
for a seg tail, `.value_for_protocol()` to read a value,
`.encapsulate()` to recompose) plus *why* it works on an infix
`/wg/` seg: the cut is by proto-code, never by matching an addr
value, and the key seg has no addr of its own.

Also,
- adopt `bearer`/`overlay` as the role names throughout, and say
  plainly why not `inner`/`outer` — the call-stack reading of
  "inner" is the exact opposite of the encapsulation one.
- warn that `value_for_protocol('ip4')` on a full tunnelled
  maddr silently yields the *bearer's* host; only call it on a
  peeled sub-maddr.
- note nesting (wg-in-wg) falls out of `.decapsulate_code()`
  cutting at the *last* occurrence, so peel repeatedly rather
  than recursing through a bespoke splitter.
- `mk_maddr()` for `TunnelledAddress` is `.encapsulate()`
  composition, not `str` building.
- README: drop the "degrades to a plain segment split" para,
  since that path is gone — no codec now means one actionable
  raise.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 4c8188652b Peel `wg` maddrs w/ `py-multiaddr`'s own tunnel API
`py-multiaddr` already ships the entire tunnel compose/peel
surface and this module was reimplementing it — a raw
`maddr.split('/')` plus index arithmetic, sitting directly under
a comment congratulating itself for not hand-rolling a parser.
Same NIH trap gh #429 existed to close, just one layer up. The
API was linked from gh #443's own 2nd bullet the whole time.

So every cut now goes through the real thing,

| need | API |
| --- | --- |
| isolate the bearer | `.decapsulate_code(P_WG)` |
| per-seg maddrs | `.split()` |
| rejoin a seg tail | `Multiaddr.join()` |
| read the key | `.value_for_protocol('wg')` |
| recompose | `.encapsulate()` |

`.decapsulate_code()` turns out to handle the infix `/wg/` seg
cleanly *because* it cuts on proto-code and never tries to match
an addr value — the key seg has no addr of its own, which was
the exact thing I'd assumed would need bespoke handling.

Deats,
- rename the role fields `inner`/`inner_proto` ->
  `overlay`/`overlay_proto`, matching `py-multiaddr`'s
  encapsulation model (earlier segs wrap later ones) and #443's
  owner table. `inner` collided head-on w/ call-stack `inner`,
  where it reads as higher-up + later-called, while here the
  encapsulated addr is bound *first* and sits deeper.
- drop `_segments()` and its degraded hand-split path entirely.
  W/o the codec there's now one actionable `RuntimeError`
  instead of a silent downgrade, superseding the swallow fix in
  7d6e7955.
- add `.as_multiaddr()` so callers can stay in `Multiaddr` land;
  `.maddr` is now just `str()` of it.
- accept `str|Multiaddr` on the way in.
- carry `bearer_ip`/`overlay_ip` so a v6 stack re-renders as v6
  — the old `.maddr` hardcoded `/ip4/` and would silently
  mangle it.
- both host scripts follow the rename to `.overlay`.

⚠️ `value_for_protocol('ip4')` on a *full* tunnelled maddr
silently returns the **first** match, i.e. the bearer's host, so
it's only ever called here on an already-peeled sub-maddr.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 8e39fd8b07 Update `wg` docs for the merged py-multiaddr#108
it lands" framing in plan-03 and the example README was stale in
both directions: the branch pin is obsolete, yet you still can't
just `pip install multiaddr`.

Deats,
- §3.2's grammar table is now re-verified against the upstream
  merge (`f86519da`) rather than only `baudco@wg_support` in a
  throwaway venv. Also notes the codec enforces a 32-byte key,
  so a truncated one is a `StringParseError` and not a silently
  mangled parse.
- §1 says merged-but-unreleased; the still-open work is spec
  registration (py-multiaddr#107 + gh #483).
- §3.4 swaps "pin the branch" for the `[tool.uv.sources]` `rev`
  pin, and fixes the `_have_wg_maddr_proto()` recipe it
  suggested — probing w/ `Multiaddr('/wg/uAAAA')` now ALWAYS
  raises bc the codec wants 32B, i.e. that feature-detect would
  report `False` even w/ the proto perfectly well known.
- risk table row goes "#108 not merged" -> "merged but
  unreleased".
- example README: `uv sync` alone now suffices bc of the pin;
  documents the 32B check and points at
  `_have_wg_maddr_proto()` as the gate.

The one surviving `baudco` mention is deliberate, it records
where the grammar was *first* verified.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 13cdc43f01 Fix silently-corrupt keys in `parse_wg_maddr()`
`_segments()` called `Multiaddr(maddr)` purely to validate, then
swallowed every failure under `except Exception: pass`. That was
harmless pre-#108 — w/o a `wg` codec there was nothing to
validate — but now that the codec is pinned in, the swallow is
load-bearing and disabled: a malformed key sails past validation
into `wg8_pubkey()`, which happily emits a corrupt b64 str, and
the returned struct then fails its own `.maddr` round-trip. No
raise, just quietly wrong output.

Deats,
- add `_have_wg_maddr_proto()`, the gate plan-03 already
  referenced but which never actually existed. Impl'd as
  `protocols.protocol_with_name('wg')` under
  `except ProtocolNotFoundError` and cached in a mod global,
  same shape as the TIPC plan's `is_tipc_available()`.
- only validate when that gate is `True`, and let
  `StringParseError` propagate — a maddr which doesn't parse
  must NOT reach `wg8_pubkey()`.
- keep the degraded split for a pre-#108 install, now w/ an
  explicit `XXX` naming the validation you give up.

So parsing stays pure but becomes total-or-raises. Our own
`ValueError`s (missing `/wg/` seg, bare tunnel w/o an overlay
ep) are unaffected, as is the `wg(8)` b64 round-trip.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi ba6b181cf5 Pin `multiaddr` to the merged `wg` codec rev
py-multiaddr#108 (the `/wg/u<key>` maddr proto) merged upstream
on 2026-07-28 as `f86519da`, but ships in no release yet — the
latest `0.2.0` predates it by ~4 months and carries no `wg`
codec at all. So `examples/multihost/wg_lan/` can't parse its
own maddrs off PyPI.

Pinned by `rev` and not `branch` so CI stays reproducible. Note
the lock now records the git source *instead of* the `>=0.2.0`
specifier, i.e. the dep floor above is fully overridden for as
long as this pin lives.

TODO, drop the pin (and bump that floor) the moment a release
carries the codec; the only consumer is the `wg_lan` example
set.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi cd1e8160fe Log prompt-io for the tpt-backend planning arc
One record covering all 9 commits on this branch, per the NLNet
generative-AI policy and the existing `ai/prompt-io/claude/`
convention.

Uses diff-ref mode for both the plan docs and the example code
(`git diff main..ng_tpts_planning -- <path>`) rather than
duplicating content already in `git log -p`. Kept verbatim in
the `.raw.md`: the four verified findings (trio's
family-agnostic `SocketStream`/`SocketListener`, the round-trip
table proving `/wg/` is infix, the proto-key `UnwrappedAddress`
rationale, and `setns(2)`'s per-thread reality), since those are
reasoning rather than diffable output.

`## Human edits` records that the steering here was substantial
and mid-session rather than post-hoc: two model claims about wg
maddr semantics were challenged and retracted (incl. in an
already-posted issue comment), and the proto-key +
netns-as-runtime-config framings were human-directed. Also notes
the one model-initiated correction — a pre-publication
self-review that downgraded the `uniffi`/asyncio thesis and the
TIPC duplicate-binder claim to explicitly-flagged assumptions.

Prompt-IO: ai/prompt-io/claude/20260813T001102Z_27c34aeb_prompt_io.md

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 3c6bd928b7 Move the `wg_lan` examples under `examples/multihost/`
`tests/test_docs_examples.py` walks `examples/` **recursively**
and subproc-runs every collected file asserting `rc == 0`. Ran
its exact filter against the tree: all 4 of our files were being
collected — including `README.md`, since the filter never checks
the extension, so CI would have literally tried `python
README.md`. These need a real second host + a live `wg` tunnel,
so they can't ever satisfy that gate.

`'multihost' not in p[0]` is already in the test's exclusion
list w/ no dir yet using it, so this is a pure `git mv` — zero
test changes — and it's what the exclusion was plainly there
for. Collection drops 24 -> 20 files, 0 of them ours.

Also records *why* in the two places someone would look before
adding the next one: a callout at the top of the example README
and a note on plan 03's §3.4 deliverables. Anything needing a
second host or live tunnel goes under `examples/multihost/`.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 0457e8f3b1 Add a `wg`-tunnelled 2-host example set
Re-renders gh #482's examples w/ the corrected (infix) maddr
grammar, as the "layer A" slice of the wg plan: declarative
maddrs only, tunnel pre-provisioned out-of-band, zero runtime
changes.

- `wg_maddr.py`: a `frozen=True` `msgspec.Struct` addr carrying
  `bearer`/`peer_pubkey`/`inner` (+ `inner_proto`), a `.maddr`
  property that re-renders the canonical form, and pure
  `mb_pubkey()`/`wg8_pubkey()`/`parse_wg_maddr()`. The parser
  rejects #482's inverted suffix form w/ an actionable error and
  stays **side-effect free** — `verify_wg_peer()` is a separate,
  explicitly impure step the caller composes, never something a
  parse path shells out to.
- `host_a_srv.py`/`host_b_client.py`: the two-host runs, passing
  only `addr.inner` into `open_nursery()`/`open_root_actor()`,
  which is the whole point — the bearer + key layers are already
  established before any bind happens.
- `README.md`: the grammar + the 3-owners table, the `#108`
  branch install line, tunnel setup, and a "what changed vs
  #482" section enumerating the corrections.

Runnable-shaped but **not yet run against a live tunnel**; that's
next, and the reason these sit on the planning branch rather than
in `examples/` proper. `_segments()` marks its stopgap for when
the `wg` codec isn't installed.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 86417fa19c Fix the `wg` maddr grammar, `/wg/` is *infix*
The prior revision (and gh #482's examples) had it as a suffix,
`/ip4/10.0.11.1/tcp/1616/wg/u<key>`. Wrong: verified against
`baudco/py-multiaddr@wg_support` (py-multiaddr#108) installed in
a throwaway venv, the canonical form is

  /ip4/192.168.1.50/udp/51820/wg/u<A_pub>/ip4/10.0.11.1/tcp/1616

where segs *before* `/wg/` are the **bearer** — the underlay
`(ip, udp-port)` `wg(8)` itself listens on (`ListenPort`), per
the codec docstring's own example — and segs *after* are the
**overlay** ep, the only part we ever bind. The suffix form does
parse, which is why it slipped through, but it's semantically
inverted: overlay addr where the bearer belongs, `tcp` where
wg's `udp` goes, and no overlay ep declared at all.

Records the observed `[p.name for p in m.protocols()]` lists so
the `match` can be written against fact, and replaces the
"composed vs not" framing w/ what's actually the design axis:
three parts, three **owners** — bearer bound by the kernel via
`wg-quick`/`pyroute2`, `/wg/u<key>` bound by nothing (it's an
identity, verified out-of-band), overlay bound by our
`IPCServer` as `.inner`. `_peel_tunnel_segs()` correspondingly
grows a 3rd return, splitting *at* the tunnel seg so nested
tunnels fall out for free.

Also hoists the netns conclusion to the top of §5.3 where it
can't be missed: netns is a **runtime-level config API, not an
actor-app-code one**. It's a spawn/boot-time input alongside
`enable_transports`/`tpt_bind_addrs`, deliberately w/ no
`await actor.enter_netns(...)`, because `setns(2)` neither moves
already-created sockets nor applies beyond the calling thread —
so a mid-life API would silently leave the IPC server bound in
the old ns.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi a03b52619a Proto-key the unwrapped-addr form in the plans
Shape-matching in `wrap_address()` doesn't survive 4 backends and
the plans were papering over it: TIPC's natural unwrapped form is
a `(str, int)`, indistinguishable from `TCPAddress`, and iroh's
is a `(str, str)`, which the *existing* UDS case
(`case (_, filename) if type(filename) is str`) already swallows.

So the contract doc (§1.1) now carries the conclusion as a
**recommended prerequisite for all three backends**: make the
unwrapped form carry an explicit proto-key spelled with the
`multiaddr` protocol name — `('tcp', host, port)`,
`('unix', path)`, `('tipc', stype, inst, scope)`. `wrap_address()`
then collapses from an order-sensitive `match` to
`_address_types[addr[0]]` and the whole collision class stops
existing, while the on-wire form finally agrees w/
`mk_maddr()`/`parse_maddr()` instead of being an independent
invention.

Two consequences spelled out: it's a wire-format change
(`SpawnSpec`, `_root_mailbox`, `_registry_addrs`) + every fixture
+ downstream config, so it wants its own migration commit landed
*before* any new backend; and it's the moment to stop handing raw
tuples to users at all — `Address` becomes the public currency
and `UnwrappedAddress` an internal serialization detail, the same
discipline `ipaddress` uses (you pass `IPv4Address`, never a
4-tuple).

Plan 01 §2.2 is rewritten to match and to explicitly **retract**
its own earlier `('tipc:<stype>:<scope>', instance)` self-tagging
prefix hack — it keeps `wrap_address()` order-sensitive and does
nothing for the iroh/UDS collision, so the doc says don't
resurrect it. Registration checklist item 4 likewise becomes "do
the migration first, then this is a one-line `_address_types`
entry".

Also seeds a `/tipc` multiaddr-spec submission as a follow-up,
mirroring the `wg` track (multiformats/py-multiaddr#107/#108 + gh

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 9cdbe36bca Index the tpt-backend plans w/ a README
Landing page for `ai/tpt-backends/`: points at the contract spec
as required first reading, tables the 3 plans against their
issues/deps/size, and states the landing order + why.

Deats,
- TIPC first as the cheap proof the table-registration story
  generalizes to a genuinely new proto (stdlib-only, and
  `trio`'s sock wrappers are family-agnostic).
- `wg` layer-A next since it's deployable-today doc/example work.
- QUIC last, gated on its own prep PR.
- notes that plans 01 and 02 both want the same
  `Address.rebind_from_sockname` gate, so whichever lands first
  ships it.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 325369af22 Add `wg`-as-nested-bindspace plan doc
Plan doc for gh #482 + the tunnelled-maddr item of #443. Pushes
back on the framing that `wg` is a tpt: it's transparent to
`socket(2)`, so it belongs as a *bindspace* — a scoped
`@acm`-managed net ctx that an existing L4 tpt binds *inside* —
and it's what finally implements the long-spec'd (never
implemented) `Address.namespace`.

Deats, 3 independently-shippable layers,
- A) declarative: commit #482's examples, teach `parse_maddr()`
  the `/…/wg/u<key>` suffix -> a `TunnelledAddress` wrapper whose
  `.proto_key`/`.unwrap()` delegate to `.inner` so nothing new
  crosses the wire and every existing table lookup keeps working.
- B) swap the `subprocess.run(['sudo', 'wg', 'show'])` shelling
  for `pyroute2`. Default to `trio.to_thread` around the sync API
  (these are one-shot ops at bind/teardown, never hot-path), w/
  sans-io codecs + a trio `AF_NETLINK` sock as the follow-up for
  the read paths. Explicitly forbids dragging `trio-asyncio` in.
- C) `open_bindspace()`/`open_netns()`/`open_wg_iface()` `@acm`s
  folded w/ an `AsyncExitStack`, + filling in the
  `# !TODO, always be ns aware!` placeholder already sitting in
  `Endpoint.pformat()`.

Also flags the subtlest bug in the whole thing: `setns(2)` is
*per-thread*, so a `pyroute2` query issued via `trio.to_thread`
lands in the *original* netns. Test-first, per usual.

Further, designs for the generalization (`TunnelSpec` union +
`match` dispatch) while only implementing `wg`+netns, and calls
out `veth`-in-netns as the better *first* one bc it makes a
fully self-contained two-"host" integration test possible w/o
`wg` at all.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi 07ba2be07d Add `QUIC`-via-`iroh` tpt-backend plan
Plan doc for gh #353. Picks `iroh` (the `uniffi` FFI pkg) over
`aioquic`/`quiche` bc node-id addressing + hole-punching + relay
fallback is the whole point; `aioquic` stays documented as the
fallback since ~90% of the adapters here are reusable against a
sans-io core.

Deats,
- the layering: iroh `Endpoint` per actor, `Connection` per peer
  (pooled via `trionics.maybe_open_context()`, not a hand-rolled
  cache), one bi-stream per `Channel`. 4-byte prefix framing
  stays so `MsgpackTransport` is untouched.
- `_uniffi_trio.py`: uniffi only uses `asyncio` as the executor
  for its rust-future poll loop, so a ~40-line
  `TrioToken.run_sync_soon()` bridge replaces it. Spells out the
  real hazards — strong ref on the `ctypes` trampoline, poll-code
  propagation, and a *bounded* shielded cancel-drain so a wedged
  rust future can't make an actor un-cancellable.
- `IrohAddress` w/ ALPN as the `.bindspace`, the `(str, str)`
  unwrapped form's collision w/ the UDS match-case, and why
  `get_root()` needs a persisted secret key -> a lazy
  `default_lo_addrs()` + a pure-getter/explicit-setter split.
- `QuicMsgStream(trio.abc.HalfCloseableStream)` +
  `QuicListener(trio.abc.Listener)`, incl. the exact
  EOF/reset/use-after-close semantics `_transport.py` already
  match-cases on, and hanging the acceptor tasks off the
  existing `Endpoint.listen_tn`.
- a prep-PR boundary: annotation widening, the shared
  `rebind_from_sockname` gate and a `tpt_key`-based
  `transport_from_stream()` dispatch, all landable w/ tcp/uds as
  the only backends.

Further, notes this is our first tpt w/ real transport security
+ peer auth, so an inbound node-id allowlist hook belongs here —
and that it says nothing about the other backends.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi f81dd82b89 Add `TIPC` tpt-backend impl plan
Plan doc for gh #378, the cheapest new backend we can add: it's
stdlib-only (CPython ships `AF_TIPC` + 23 `TIPC_*` consts) and
per the contract doc `trio`'s stream/listener wrappers don't care
about the addr family, so `MsgpackTransport` framing and
`trio.serve_listeners()` are reused verbatim.

Deats,
- `TIPCAddress` as a *service name* `(type, instance)` w/ scope
  as the `.bindspace`; `bind()` publishes the singleton
  name-range, peers `connect()` by name and the kernel resolves
  + load-balances. I.e. registration/lookup for free, no
  registrar in the loop.
- the self-tagging `('tipc:<stype>:<scope>', instance)` unwrapped
  form + why it must be match-ordered before `TCPAddress`'s.
- `get_random()` via a blake2b digest of the actor id (there's no
  `port=0` analogue) and the silent-crosstalk risk that follows:
  TIPC *allows* dup binders and round-robins, so a collision
  doesn't `EADDRINUSE`, it cross-talks.
- an `Address.rebind_from_sockname` ClassVar to opt out of
  `Endpoint.start_listener()`'s `getsockname()` reconcile, which
  for TIPC always returns a port-id, never the bound name.
- the `TIPC_TOP_SRV` topology-service subscription as an `@acm`
  yielding a chan of typed name-table events — push-based
  register/dereg, the real "end game cluster proto" bit.
- commit sequencing, hard capability gating (`modprobe tipc`;
  bare `AF_TIPC` is `EAFNOSUPPORT` on a stock box), CI matrix
  notes, risks + follow-up seeds.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Gud Boi e25e018370 Add the `.ipc` tpt-backend contract spec
First doc of a new `ai/tpt-backends/` set: the normative
description of what a `tractor` tpt backend *is* as of `main`,
written so the 3 sibling plans (TIPC, QUIC, `wg`) can be worked
independently (by another model/provider) w/o design drift.

Deats,
- the backend duck-type as empirically derived from
  `_tcp.py`/`_uds.py`: the `Address` protocol surface, the
  mod-level `start_listener()`/`close_listener()` pair and
  `Msgpack<Proto>Stream(MsgpackTransport)`.
- the ONE reflection you can't break:
  `Endpoint.start_listener()` resolves the tpt mod via
  `inspect.getmodule(self.addr)`, so an `Address` type and its
  listener fns MUST live in the same mod.
- a 10-item registration checklist (`_address_types`,
  `_key_to_transport`, `_addr_to_transport`, `wrap_address()`
  match-cases, `TransportProtocolKey`, maddr tables, ..) incl.
  the import-time `_default_lo_addrs` trap.
- where the `trio.SocketListener` assumption is *actually*
  load-bearing (just the `getsockname()` reconcile) vs. merely
  annotated.
- the handshake/discovery invariants a new backend inherits,
  dep policy (extras + import-laziness per the #470 boot-latency
  budget), `--tpt-proto` harness plumbing and code style.

Also, records a verified finding the plans lean on hard:
`trio.SocketStream`/`SocketListener` are addr-*family* agnostic
— the only ctor checks are "is a trio sock" + `SOCK_STREAM` (+
an `OSError`-suppressed `SO_ACCEPTCONN`) — so any `SOCK_STREAM`
family CPython can make drops into the existing
`trio.serve_listeners()` path unmodified.

(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
2026-08-29 22:02:56 -04:00
Bd f220b4641d
Merge pull request #512 from goodboy/wkt/big_boi_docs_472_follow_ups
post-#472 docs follow ups
2026-08-29 22:02:20 -04:00
Gud Boi 7796480062 Widen `accept_addr` in the UDS example
Match `Actor.accept_addr`'s declared `tuple[str, int|str]` contract
instead of narrowing its second item to the UDS-specific string path.

Review: https://github.com/goodboy/tractor/pull/512#discussion_r3888153533

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 21:46:38 -04:00
Gud Boi d799bd6f68 Show the discovered actor address
Print the discovered service's remote channel address instead of
the default `Portal` object repr.

Review: https://github.com/goodboy/tractor/pull/512#discussion_r3883250916

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 20:24:25 -04:00
Gud Boi a95ca7577f Record PR #512 prompt provenance
Capture the human direction, generated changes, review findings and
validation results for the docs-example landing pass.

Point generated-code references at the complete commit range from
the pre-remediation branch head.

Prompt-IO: ai/prompt-io/opencode/20260828T200822Z_0be872ff_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 20:10:13 -04:00
Gud Boi a40fb2ebde Correct typed-msg validation docs
Document `Started` as the eager sender-side payload check and
`Yield` plus `Return` as receiver-side decoding boundaries without
promising a symmetric error relay.

Separate the working task-scoped codec encoder from the private
per-dialog decoder and the incomplete `@context` hook params.

Link the planned typed `Start` contract and sender-side argument
validation follow-up in #514.

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 20:07:06 -04:00
Gud Boi 38883dca03 Harden the dedicated registrar example
Run the registrar in its own process and prove that a sibling client
discovers the service through registry lookup instead of an existing
peer channel.

Retry ephemeral bind collisions, publish readiness atomically and
validate bounded cross-platform shutdown. Document actual duplicate
name and multi-registrar ordering semantics alongside the example.

Move the demo under the discovery examples and wrap process ownership
in an `@acm`. Record the future public subsystem, Piker service and
pytest isolation follow-ups.

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 20:05:28 -04:00
Gud Boi 97aff52050 Polish the debugger examples
Finish the Python style, typing and docstring pass across the
debugger examples without changing their intentional breakpoints,
failures, cancellation races or timeout reproducers.

Restore full child command lines in the documented process trees
and keep the examples within the 69-column source limit.

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 19:01:34 -04:00
Gud Boi 96a1838210 Polish the non-debug docs examples
Finish the Python style, typing and docstring pass across the
ordinary, parallelism, Trio and integration examples.

Preserve each demo's runtime behavior while tightening callable,
portal, stream and nursery annotations. Use the modern `.chan`
portal attr and current actor-lifecycle terminology.

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-29 18:58:43 -04:00
Gud Boi 0be872ff97 Type the remaining niche examples
Finish the examples-typing sweep with the last non-docs-visible
scripts: `-> None` on the two `trio/` behavior-demo mains (plus a
`trio.TaskStatus` on `hold_lock_forever`) and nursery/portal typing
on `integration/mpi4py/inherit_parent_main.py`.

Leaves `concurrent_futures_primes` (a verbatim stdlib baseline) and
`integration/open_context_and_sleep` (its tractor nursery is
commented out) as-is, and the paren-group `trio.open_nursery()`
bindings unannotated (no clean spot for a preceding annotation).
Completes the examples-typing bullet in #472.

(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
2026-08-28 14:53:35 -04:00
Gud Boi 319868e92d Type the docs-visible `examples/` scripts
Type the runtime objects (`ActorNursery`, `Portal`, `Context`,
`trio.Nursery`) + fn signatures across the 16 highest-visibility,
`literalinclude`-d `examples/` scripts, matching the front-page
`we_are_processes.py` style — so the rendered guides show typed
usage throughout, not just on the landing snippet.

Spans the 3 quickstart-backing scripts + `single_func`,
`remote_error_propagation`, `multiple_streams_one_portal`,
`quick_cluster`, `service_discovery`, `service_daemon_discovery`,
`asynchronous_generators`, `nested_actor_tree`,
`concurrent_actors_primes`, `streaming_broadcast_fanout`,
`rpc_bidir_streaming`, `infected_asyncio_echo_server`,
`typed_payloads`.

Annotation-only (no renames/logic changes); each runs green and the
docs build stays warning-free. Part of the examples-typing bullet
in #472.

(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
2026-08-28 14:53:34 -04:00
Gud Boi a6c1158853 Add basic typing to the `debugging/` examples
Sweep the `examples/debugging/` set for basic typing: add `-> None`
to all 16 bare `async def main()`s and annotate the clean
single-line `open_nursery()` bindings as `tractor.ActorNursery`.

Kept to the unambiguous, runtime-safe cases (these breakpoint/crash
demos can't be run headless); the heterogeneous
multi-line/paren-group nursery bindings + `current_actor()` returns
are left for a later pass. Continues the examples-typing bullet in

(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
2026-08-28 14:47:18 -04:00
Gud Boi 4c507ea13c Add a dedicated-registrar example + discovery guide
Add a runnable `examples/dedicated_registrar.py` + a "A dedicated
registrar" subsection in `guide/discovery.rst` demoing the
registrar decoupled from any app tree's root: boot a bare
`tractor.run_daemon([], registry_addrs=[...])` as its own process
(a root actor that does nothing but hold the registry), point the
app tree at the same `registry_addrs`, and discover a service
*through* that external registrar.

This is the buildable-today form of the #472
"Registrar-as-subsystem (not the root actor)" bullet. Two
constraints are called out inline as follow-ups:
`enable_transports` is single-proto per runtime (no multi-backend
registrar yet), and a registrar can only be a root (no `actor_cls`
hook on `start_actor()` to spawn one as a subactor).

(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
2026-08-28 14:40:01 -04:00
Gud Boi a279cb39a9 Expand caps-based-msging docs w/ #365, #376 + tests
The "Toward capability-based msging" section only pointed at the
`#196`/`#36` epics. Fold in the concrete recent state,

- `#365` as the most recent step: driving the whole `pld_spec` off
  plain type-annotations (e.g. annotating a context's
  `open_stream()` with `msgspec.Struct` subtypes) rather than
  explicit `pld_spec=` kwargs.
- clarify that the decorator-level `@tractor.context(pld_spec=...)`
  is already the higher-level path (vs the lower-level
  `tractor.msg._ops.limit_plds()` escape hatch), pointing at
  `tests/msg/test_pldrx_limiting.py` + `test_ext_types_msgspec.py`
  which exercise both.
- `#376` (from @guilledk, `auto_codecs` branch) as the drafted
  public factory API for the `enc_hook`/`dec_hook` pair (today only
  reachable via `tractor.msg._ops`).

Addresses the caps-based-msging bullet in #472.

(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
2026-08-28 14:40:01 -04:00
Bd f40efdd8da
Merge pull request #490 from goodboy/wkt/fix_broadcast_lag_count
Harden broadcast fan-out ownership and failures
2026-08-28 14:31:52 -04:00
Gud Boi 6429e6a515 Reject concurrent `BroadcastReceiver.receive()` calls
Two tasks could receive through one `BroadcastReceiver` and race its
single `_wait_scope`. A later call could replace the scope, leaving
the first blocked through `.aclose()`.

Track the active `trio.lowlevel.Task` per receiver and reject an
overlapping call with `trio.BusyResourceError`. Include the owner's
task name and repr in the error, then clear ownership in `finally`.

Define each receiver as one logical subscription cursor. Concurrent
consumers must use separate `.subscribe()` receivers so each retains
an independent cursor and lag policy. Strict mode reads every retained
value or raises `Lagged`; `raise_on_lag=False` explicitly permits
drops.

Cover the regression with a checkpoint loop synchronized on
`recv_ready`; explain the interleaving inline, assert the error names
the active consumer, then release the source and prove the original
receive remains usable.

Prompt-IO: ai/prompt-io/opencode/20260828T014247Z_d06ee34b_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 22:11:55 -04:00
Gud Boi d06ee34b83 Clean broadcast cancellation diagnostics
Bound `BroadcastState.cancelled` entries to receiver progress,
terminal state and resource lifetime instead of retaining completed
`Task`s indefinitely.

Deats,
- make EOC durable so awakened peers never re-enter a closed source.
- close root broadcasters during explicit `MsgStream` and
  `LinkedTaskChannel` teardown without re-entrant EOC closure or
  breaking `MsgStream.aclose()` overrides.
- reject non-positive fan-out retention capacity before constructing
  an unusable zero-length queue.
- cover child/root cancellation cleanup, terminal peer wakeups,
  wrapper teardown, subclass compatibility and zero-buffer rejection.

Prompt-IO: ai/prompt-io/opencode/20260813T181901Z_a2e0df4b_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 21:18:00 -04:00
Gud Boi ff4391669b Expose stream subscriber lag policy
`MsgStream.subscribe()` and `LinkedTaskChannel.subscribe()` omitted
`BroadcastReceiver.raise_on_lag`, forcing downstream consumers to
mutate a private receiver attribute when overruns were acceptable.

Add `raise_on_lag` to both public wrappers. The first subscription
sets the irreversible root broadcaster's policy, while every child
selects its own strict or warn/drop/resume behavior independently.

Document both fan-out APIs. Cover policy forwarding plus real IPC
and infected-asyncio paths.

Prompt-IO: ai/prompt-io/opencode/20260812T213117Z_51185487_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 21:18:00 -04:00
Gud Boi a5259a8ee4 Isolate `BroadcastReceiver.aclose()` wakeups
Closing any subscriber set the shared `recv_ready` event, even when
another receiver owned the source read. Waiting peers then looped
until an idle source produced another value.

Give each receiver private source-read and peer-wait cancellation
scopes. Closing a waiting peer interrupts only that peer. Closing
the source owner discards post-close source outcomes and then wakes
peers for a clean ownership handoff.

Keep outer task cancellation as `trio.Cancelled`; only explicit
receiver close maps either private scope's cancellation to
`ClosedResourceError`. Assert that scope cancellation implies the
receiver is closed and document the source-owner key check.

Prompt-IO: ai/prompt-io/opencode/20260812T150027Z_c2a6ccef_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 21:18:00 -04:00
Gud Boi d6da0e7a22 Wake broadcast peers on shared receive failures
Only `EndOfChannel` and direct cancellation woke tasks waiting
behind the subscriber which owned the underlying receive. Any other
failure cleared `BroadcastState.recv_ready` while peers remained
blocked on its unreachable event.

Publish ordinary receive exceptions as terminal broadcast state.
The owner keeps the original failure while peers drain retained
values and then raise `BroadcastReceiveError` from that cause. Also
wake peers on process-control exits without retaining them as state.

Document the public owner/peer contract and cover current, late and
control-flow subscribers with deterministic bounded regressions.

Prompt-IO: ai/prompt-io/opencode/20260812T030608Z_1095e7f7_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 21:18:00 -04:00
Gud Boi 5afd834732 Fix `BroadcastState.statistics()` queue counts
`BroadcastState.subs` stores each receiver's next unread deque
index, but `.statistics()` exposed that index as a queue length. A
caught-up receiver looked correct by accident while every queued
count was one short.

Convert cursors to retained, receivable counts and clamp lagged
receivers to the current queue length. Also avoid deprecated
`trio.Event` truthiness when reporting waiter counts.

Cover caught-up, queued, lagged and real-event states using actual
broadcast sends and receives.

Prompt-IO: ai/prompt-io/opencode/20260812T012324Z_06c4af17_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 21:18:00 -04:00
Gud Boi 206b0354c5 Fix `BroadcastReceiver` lag counts
`BroadcastReceiver.receive_nowait()` treated `seq` as a deque index
but subtracted `BroadcastState.maxlen` without counting the first
invalid index. A one-slot queue thus claimed it dropped zero values
after its subscriber missed one.

Include that first displaced value in the count. Preserve the
existing Tokio-style reset to the oldest retained item.

Also, cover exact loss reporting and recovery for one- and
three-slot retention windows.

Prompt-IO: ai/prompt-io/opencode/20260811T233833Z_7cbd64ee_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 21:18:00 -04:00
Bd 11dc534a5d
Merge pull request #510 from goodboy/wkt/ai_skillz_run_tests_landing
`ai.skillz` multi-harness deploy (and a proper `/run-tests` landing)
2026-08-27 20:25:14 -04:00
Gud Boi 24e55e918e Document canonical `/run-tests` deployment
Link Tractor's project reference to the immutable canonical skill
and its repository, then show the exact hybrid deployment command.

Also clarify the Prompt-IO record's commit boundaries and PR #510
review direction.

Review: PR #510 (copilot-pull-request-reviewer)
https://github.com/goodboy/tractor/pull/510#pullrequestreview-5046306236

Prompt-IO: ai/prompt-io/opencode/20260822T022526Z_5562fd9a_prompt_io.md

(this patch was generated in some part by `opencode` using
`gpt-5.6-sol` (`openai`))
2026-08-27 19:47:31 -04:00
Gud Boi c9cfce441a Harden `run-tests` signal and reaper guidance
Prevent unsafe harness guidance from sending SIGUSR1 before
`stackscope` installs its handler or using shared-memory scans on
unsupported platforms.

Deats,
- verify `stackscope` in the pytest env before signaling.
- target pytest by default and require a separately verified handler
  before signaling subactors.
- keep `tractor-reap --shm*` guidance to Linux and FreeBSD.
- pin staged Prompt-IO provenance to `eb3c99c9` and record the
  PR #510 review direction.

Prompt-IO: ai/prompt-io/opencode/20260822T022526Z_5562fd9a_prompt_io.md

(this patch was generated in some part by `opencode` using
`gpt-5.6-sol` (`openai`))
2026-08-27 18:52:16 -04:00
Gud Boi 7b89995089 Ignore deployed `ai.skillz/` state
Record generated ignore blocks for deployed skills, commands, and
runtime artifacts so direct symlink deployments remain status-clean.

(this commit msg was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 18:34:49 -04:00
Gud Boi eb3c99c9fd Correct `run-tests` harness guidance
The migration reference overstated cleanup safety and omitted
current environment, platform, debugger and timeout behavior.

- document runtime env overrides and the actual CI matrix
- distinguish interactive debugger capture from hang diagnosis
- describe Trio-aware and SIGALRM timeout guards separately
- expose reaper platform limits and dry-run descendant expansion
- restore exact change-to-test mappings and randomized-port wording
- drop unrelated Taken and broad command ignores from the migration

Prompt-IO: ai/prompt-io/opencode/20260822T022526Z_5562fd9a_prompt_io.md

(this patch was generated in some part by `opencode` using
`gpt-5.6-sol` (`openai`))
2026-08-27 18:34:48 -04:00
Gud Boi 11ae5171d1 Use canonical `/run-tests` skill
Move Tractor's project-specific test knowledge into the local harness
reference and let `ai.skillz` own shared execution and safety policy.

Deats,
- document current Python envs, pytest opts, backends, and transports.
- replace broad registry and process cleanup rules with scoped checks.
- record capture, diagnostics, reaper, and expected-outcome caveats.
- ignore canonical Claude and OpenCode links plus Taken runtime state.

(this patch was generated in some part by `opencode` using
`gpt-5.6-sol` (`openai`))
2026-08-27 18:34:48 -04:00
Bd 90c4954cb9
Merge pull request #508 from goodboy/wkt/macos_ci_reruns
Retry macOS tests with `pytest-rerunfailures`
2026-08-27 16:45:35 -04:00
Gud Boi 0664731372 Retry macOS tests with `pytest-rerunfailures`
Give only the macOS matrix leg two retries so actor/PTY timing
flakes do not strand otherwise-green runs. Linux and Windows remain
strict first-attempt jobs, while persistent macOS failures stay red
after the final visible rerun.

Deats,
- add the pytest-dev-maintained plugin to testing deps
- keep a one-second delay between macOS attempts
- validate the workflow, lock and both observed flaky test areas

Prompt-IO: ai/prompt-io/opencode/20260821T052052Z_3690e43a_prompt_io.md

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-27 13:43:06 -04:00
Bd e90f2f224a
Merge pull request #484 from goodboy/drop_ria_nursery
Drop `run_in_actor()` + the ria reap-cluster
2026-08-26 22:48:32 -04:00
Gud Boi 1ad6281348 Clarify recursive one-shot spawning test
Handle the child RPC leaf as an early return, then leave the root-only
runtime and recursive one-shot flow unindented. Rename the helper for
that behavior and document why RPC namespace lookup requires it to
remain import-addressable at module scope.

Review: PR #484 (goodboy)
https://github.com/goodboy/tractor/pull/484#discussion_r3859956375

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-26 18:27:11 -04:00
Gud Boi b3e8ed18d1 Link asyncio cancellation regression provenance
Point `test_tractor_cancels_aio()`'s anti-hang guard at the original
fix commit and the detailed ria-removal analysis plan.

Review: PR #484 (goodboy)
https://github.com/goodboy/tractor/pull/484#discussion_r3859956368

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-26 17:00:54 -04:00
Gud Boi d5e66dffaa Restore high-fanout startup cancellation stress
Release 25 concurrent `to_actor.run()` callers through one local
barrier so their implicit child starts race the first remote error.
Exercise one, five and 25 deterministically placed errorers without
overloading actor-nursery internals.

Validate bounded cancel-on-first teardown, only boxed assertion
relays and empty actor-nursery child/reap maps across Trio and
multiprocessing backends. Clarify this successor's distinction from
`test_nested_multierrors()`, diagram flat-pool error propagation and
align the nearby expected-error comment with its handler.

Review: PR #484 (goodboy)
https://github.com/goodboy/tractor/pull/484#discussion_r3858891778

(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
2026-08-26 17:00:44 -04:00