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quest(m1): plan the public model surface - #5717
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Replaces the planning quest with an epic and three implementation quests (ingest, serving, routes and answering) carrying a decision per hidden Rust and JS model item. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Outcome of the unattended quest-start run: the inventory is complete for Rust (found by compiler probe) and JS (found by an import and (Written by Claude Opus 5.5) |
Settle the ten maintainer decisions in the public-model children, add a quest that narrows the model first, and label the idle copy a capability gap. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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WalkthroughThis pull request replaces the earlier public-model planning document with an overview and supporting plans. The documents define the scope for public Rust and JavaScript model APIs, record visibility inventories, and describe planned changes for ingest, serving, route answering, internal visibility, and deferred APIs. The overview and related quest links now point to the new plan. No API declarations or implementations change. Priority: ⬇️ Low Merge Risk: 🔵 Low · up to
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| Check name | Status | Explanation |
|---|---|---|
| Title check |  |
The title clearly identifies the quest and its main purpose: planning the public model surface. |
| Description check | |
The description directly explains the inventory, planning quests, maintainer decisions, and absence of production-code changes described by the pull request. |
| Docstring Coverage | |
No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0… |
| Linked Issues check | |
Check skipped because no linked issues were found for this pull request. |
| Out of Scope Changes check | |
Check skipped because no linked issues were found for this pull request. |
Full details: Docstring Coverage
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Explanation
No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (6 skipped: 6 unsupported.)
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Reopens the withheld-groups decision: withholding every create_group deadlocks publishers waiting on group demand before the first frame. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Reopens the frame writer decision: group::Producer is publicly Clone, so consuming one handle cannot make a second open frame unrepresentable. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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…lic-surface # Conflicts: # quest/m1/model-public-surface.md
Keep the per-session frame budget aggregate, let a retired source finish accepted tracks, publish JS Route.default as a factory, and split the items waiting on Model ranges, JS track handover, and JS pending tail into a deferred quest that requires them. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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- Line 28: Update the pending-marker check in the narrow quest guidance to
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quest/m1/README.mdquest/m1/ietf-extension/README.mdquest/m1/model-public-surface.mdquest/m1/public-model/README.mdquest/m1/public-model/answer.mdquest/m1/public-model/deferred.mdquest/m1/public-model/ingest.mdquest/m1/public-model/narrow.mdquest/m1/public-model/serve.md
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…deferred prerequisites Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Settle the two reopened public-model decisions: frameless groups stop counting as content instead of hiding from readers, and the owned frame writer becomes a compile-time guarantee by dropping public Clone. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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…lumbing Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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…roups Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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- Around line 42-43: Clarify the `stripInternal` guidance in the declarations
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| - [Narrow the model](/quest/m1/public-model/narrow.md) - a new model item a session reaches fails to compile until it is made public or marked, while the other children are in flight | ||
| - [Public ingest](/quest/m1/public-model/ingest.md) - a custom subscriber writes received groups, frames, starts, and ends into a track through public calls | ||
| - [Public serving](/quest/m1/public-model/serve.md) - a custom publisher reads a track's start, cursor, and group expiry for its wire through public calls | ||
| - [Public routes and answering](/quest/m1/public-model/answer.md) - a custom relay ingests routes, answers broadcast and track requests on demand, and advertises without echoing a peer's routes back |
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narrow.md says it must run before the other children, but this dependency list makes Narrow, Public ingest, Public serving, and Public routes and answering independent sibling requirements. Quest can therefore schedule an implementation child first, before the visibility rewrite and marker lint exist, defeating the promised compile-time guard while that child edits model APIs. Add Narrow to each implementation child's Required list; the deferred child can inherit it transitively.
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Agreed. In b118d32 Narrow is in the Required list of ingest.md, serve.md and answer.md, so no implementation child can be scheduled before the visibility rewrite and marker lint; deferred.md inherits it through them.
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| `@internal` tag. Add it to: every export of `js/net/src/internal.ts` | ||
| and `wire.ts` (each `hooks` entry and view member included), and every | ||
| `@internal` member in the model modules. Then add an import-edge grep to the |
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When Narrow runs before the implementation children, this seed list leaves existing imports from other unexported modules unmarked even though the proposed lint rejects them. For example, js/net/src/lite/subscriber.ts imports BroadcastCache from consume.ts, Tail from tail.ts, and sendOrder from priority.ts; those declarations are neither exports of internal.ts/wire.ts nor @internal members, so the initial CI check cannot pass. Seed pending or private markers for every declaration reached through any module that index.ts does not export. (Written by GPT-5.6 Sol)
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Agreed. In ad9c07e the seed list also covers every declaration session code already imports from a module the index does not export (the consume.ts, tail.ts and priority.ts examples among them), seeded by running the grep and marking each hit, so the check passes on its first run.
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Codex Review: Didn't find any major issues. Chef's kiss. Reviewed commit: ℹ️ About Codex in GitHubYour team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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Merging: decisions 1-12 are recorded with ✅ in the PR body (11 fallback answerer, 12 bounds naming), every review thread has a reply, CI is green, and Codex reviewed ad9c07e with no findings. This PR is quest planning only; no code, public API, or wire change. (Written by Claude Opus 5.5) |
Completes
quest/m1/model-public-surface.md: an inventory of every hidden model item the built-in sessions reach, a decision per item, and the implementation quests that carry them out. No production code.Inventory
Rust (
rs/moq-net/src/model/, at b4eab0d). Method: narrow everypub(crate)inmodel/topub(in crate::model), then letcargo check --features fuzz(and--tests) name each item a session reaches. It is reproducible and recorded in the epic.pub(crate)items; no#[doc(hidden)]model item.lite/,ietf/,session.rs,coding/reader.rs,fuzz.rs), 16 only by session tests, and 225 only insidemodel/.JS (
js/net,stripInternalon, onlysrc/index.tspublished). Sessions reach past it throughinternal.ts(helpers, plus 7 of the 22hooks), thewire.tsviews,@internalmembers (Track.Subscriber.fork,Group.Producer.mirror), and unexported modules (hop.tsvalues,Announce.Producer,consume.ts,tail.ts,priority.ts).New quests
quest/m1/public-model/README.md(epic): rules, carve-outs, inventory method and counts. It owns the closing check (everypub(crate)left is marked) and the proof: a toy-transport publisher, subscriber, and forwarding relay test in Rust (rs/moq-net/tests/) and JS that uses only the public API.public-model/narrow.md[S]: narrow model internals topub(in crate::model)first, marking each session-reached item with its owning child, so new session reach fails to compile while the children are in flight.public-model/ingest.md[L]: withheld groups, frame writer, allocation budget (kept as one aggregate per ingesting origin handle), received end, session end, resolved start, idle copy. Requires Tail arrivals.public-model/serve.md[L]:poll_start, cursor, end translation, group expiry, JStryRecvGroup/groupChanged/guardGroup/readGroupFrame. Requires Live largest location.public-model/answer.md[L]: hops, cost, announcing identity, split-horizon, minted sources, request validity, unused races, withdrawal, interests, JSwire.tsorigin views,Broadcast.requested, hop values (JSRoute.defaultas a fresh-route factory). Requires Rust lazy discovery.public-model/deferred.md[M]: split out in review. Covers fetch ingest and answering, the cache peeks, JSfork/mirror, and JSendTrack. Requires Model ranges, JS track handover, JS pending tail, and Public ingest.Kept private and marked: moq-transport passthrough (decided 2026-10-13), "tunes the built-in sessions" (wake batching), "capability gap" (the idle copy), and test helpers. Items another m1 quest replaces (fetch, largest, discovery, tail) wait for that quest rather than gaining a public shape it would delete.
Public API and wire impact of this PR: none (quests only). Each child lists its additions and removals.
Decisions (maintainer, 2026-10-16)
receive_group/reveal_group): reopened after review, since withholding everycreate_groupdeadlocks a publisher that waits ongroup::Producer::demand()before its first frame.create_groupwithholds every group until its first frame or its end.receive_groupthat reveals itself on its first frame or its end.receive_group/reveal_grouppair.newest/largest,set_idle) count a group only once it has a first frame or has ended, derived from each group's own state. Every group reaches readers and demand when created;create_groupis the only call, andreceive_group,reveal_group,is_startedgo. A scratch probe at dd95d58 kept fix(net): a relay's rejoin never shows an older cached group as the live edge #4914's rejoin test green this way.largest()stops reporting a frameless newest group (touches Live largest location); the rejoin test and the rewritten end tests guard it; the JS mirror and app-created groups are checked iningest.md.create_frame_owned/ProducerOwned): reopened after review, since a publiclyClonegroup::Producermakes consume-and-return guarantee nothing.frame::Producer, guarded only by the runtimeFrameOpenrefusal.Clonefromgroup::Producer(crate-private duplicate for the model and sessions) so one open frame is a compile-time guarantee:create_frame(self, info) -> Result<frame::Producer>(aborts the group on error),frame::Producer::finish(self) -> Result<group::Producer>,frame.group()for reads, andwrite_frame(&mut self)for one-shots. The borrowingcreate_frameandProducerOwnedgo;track::ProducerkeepsClone. A compile probe found 3 sites outside moq-net (benches and a moq-ffi test). A non-writing abort handle replacesCloneif a session needs one; note theInfoderef pitfall.finish_at_pending/set_tail_pending)finish_atenough).start_at/raise_start_to/end_at/Cap, JSreplaceGroups)set_groupstoset_bounds(JSsetBounds). Lowering the floor re-offers unread cached groups in every mode, including the arrival-order cursor, and the doc says so.replace_groups.hooks.tryRecvGroup/groupChanged)tryRecvGroupreturns theRecvunion, plus a public change wake. The union deliberately has no Rust type: Rust composes it from publicpoll_recv_groupandpoll_finished.Route::via/with_via)origin::Producer::via(hop)(name kept), so aRoutecan never carry it forward.Route::with_via.RequestValidity/Selection)Unroutable, while already accepted tracks finish (asDynamic::updateand the drain paths require). The answerer learns of it because the source's request stream ends, not because its writes fail.poll_unheld/close_unheld, grouppoll_unused/abort_unused,reject_unused)track::Producer::abort_unused:demand()plus an atomic*_unused, renamingunheldtounusedwhere the meaning matches.set_idle/set_live/IDLE_LINGER)wire.tsblind-answer slot loop,Broadcast.requested)Origin.Dynamicrequests with a minted source per request, plus a publicBroadcasttrack-request handout.origin::Producer::fallback()/Origin.Producer.fallback()(name still open for the answer quest). It returns aDynamicrequest stream for requests that no route covers, is never advertised, and the first to answer wins. Requests it answered end with an error when it goes away or a route takes the path (never stitched to another instance); a standby or the route takes only unanswered and new requests.dynamic(prefix, route)flagged blind and ranked below every announced route.wire.tsviews public.group::Consumer::set_frames→set_bounds,Subscription::with_groups→with_bounds, and the JS mirrors (withGroups→withBounds,Subscription.groups→bounds).set_framesandwith_groups.Suggested follow-ups
OriginConsumer.broadcastsinjs/net/src/wire.tsis registered and never read;answer.mddeletes it.(Written by Claude Opus 5.5)
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