drain-many-accounts

Frontmatter

.abcd/development/specs/closed/spc-2610161044461448-drain-many-accounts.md
open on GitHub ↗ · commit history ↗

References3

• itd-2610161016391855A stuck drain lane hands itself backimplements
• itd-2610161016394967Drains on several accounts share the workimplements
• itd-2610161016401115Drains run unattended and visiblyimplements

mentions71

• adr-2609291342092738A drain takes an issue alone only when its fields say it needs no decision
• dcn-26101500000000012026-10-15 — Sessions under different accounts, on different machines and in cloud sessions tell each other what they are doing through short fixed-form notes on the shared remote, with no free text, and what is really a hold stays a reservation (the product thinker's ruling, "ok, agreed, option 1", choosing between the three options of research note 2026-10-14-session-messages-across-accounts; recorded on itd-2609151838312703 decisions 1 and 2). A forge coordination issue and a private side repository were the options not chosen.
• dcn-26101610403502562026-10-16 — A drain plans from origin's default branch (facilitator-on-delegation, drain-many-accounts): each drain move fetches origin inside the drain's lock before it reads anything, and takes one snapshot of the ledger from origin's default branch, which the plan, the lane's start check, the judgement's remedy digest and the reservation footprint all read; a fetch that fails, a default branch the fetch could not read, or a missing origin/HEAD means the move cannot plan and enters the drain's outage wait, never planning from what the checkout last saw; the dry run plans from the last fetched view and says how old it is, so it still writes nothing; a checkout behind origin is warned about, not refused, because the lane is cut from origin anyway; and any reservation of a record finished on origin's default branch backs off, with or without a tip (grounds: a queue consumer reads the row it locks, as SELECT ... FOR UPDATE SKIP LOCKED; iss-2610160957404827, iss-2610161015448977).
• dcn-26101610403643122026-10-16 — A drain waits when only held work is left (facilitator-on-delegation, drain-many-accounts): when the drain's holder is at the reservation cap, counted from the move's view before any reservation or judgement, or when every remaining eligible issue is held by others, the drain keeps its judgements, writes a waiting_until fifteen minutes on that is kept apart from the pace window, and names what it waits for (the holds, or the pull requests waiting to merge); it stops as empty only when no eligible issue is left, held or not (grounds: the drain already treats its pace window as a wait, and a bounded poll is the standard consumer wait; iss-2610161015371794, iss-2610161015422836).
• dcn-26101610403655152026-10-16 — A drain's hand-backs are published on origin (facilitator-on-delegation, drain-many-accounts): a drain's hand-back, from a lane or from a judgement, is the release of the reservation the drain took before judging, carrying a closed-vocabulary hand-back kind and the blob id of the issue record on origin's default branch, never free text; a reservation a drain makes backs off such a tip while the blob is unchanged, while a person's own abcd reserve or abcd build is let through with a note; a promotion the checkout cannot make because it does not hold the record as origin does publishes the tombstone alone and says so; an issue whose related_intents names an intent is ineligible, a clause added to brief invariant 19; and every account draining at once runs one build, since an older build reads the tombstone as a plain release (grounds: reasoned tombstones as Cassandra and Kafka keep them, and the fixed-form rule for the shared remote, dcn-2610150000000001; iss-2610161015370582).
• dcn-26101610403688902026-10-16 — A drain reserves an issue before it judges it (facilitator-on-delegation, drain-many-accounts): the drain reserves an issue before it asks any judgement over it, so the reservation push is the compare-and-swap that keeps two accounts from judging or promoting one issue; an issue or footprint another copy holds in the move's view is passed over with no push and no judgement; and within each group of one category and severity the drain takes file-scoped issues first and orders each part by a rendezvous hash of the holder, the copy key and the issue id, so accounts and copies spread across the group with no coordinator (grounds: competing consumers with skip-locked selection, and rendezvous hashing; iss-2610161015387318).
• dcn-26101610403743432026-10-16 — A drain renews its lane's lease every move (facilitator-on-delegation, drain-many-accounts): every drain move, waiting or not, renews its in-progress lane's reservation at half its lease before its window gate, independent of the lane's progress; and the land stage checks the reservation before its push as well as at arming, handing the lane back at once when the hold is now another's, so a lapsed lease never becomes a duplicate pull request (grounds: lease keep-alives as Chubby and etcd keep them, and fencing before a write; iss-2610161015393523).
• dcn-26101610403782092026-10-16 — A fork origin refuses reservations (facilitator-on-delegation, drain-many-accounts): a fresh reservation and a drain's start ask the forge once per process whether a github.com origin is a fork, and refuse a fork, naming the repository it was made from and the command that sets origin to it; renewals and releases never ask, an origin that is not on github.com is not asked, and a forge that does not answer gives a warning and lets the act through, so a forge outage never stops leases being kept (grounds: a fork's reservation branches are invisible to every other account, so a hold there protects no one; iss-2610161015400509).
• dcn-26101610403787132026-10-16 — An unreadable worktree refuses the move once (facilitator-on-delegation, drain-many-accounts): a sibling worktree abcd cannot read refuses the drain move once, before any reservation or judgement, naming the worktree and its repair, rather than reading as contention on every issue (grounds: a named refusal is repaired in a minute, while a queue silently emptied by one bad worktree costs a whole run; iss-2610161015397586).
• dcn-26101610403809482026-10-16 — Parked lanes are read from their pull requests (facilitator-on-delegation, drain-many-accounts): each drain move reads every parked lane's pull request in one forge listing; a closed pull request releases its lane's reservation and hands the lane back, a conflicting one stops being renewed and is named in next, and a parked lane whose head is not yet on the default branch is named as waiting rather than skipped (grounds: the pull request's state is the evidence of the lane's progress, and one listing costs one request a move; iss-2610161015381750).
• dcn-26101610403820672026-10-16 — A stuck drain lane hands itself back (facilitator-on-delegation, drain-many-accounts): a drain lane whose step has refused identically three times, or has refused at one stage for sixty minutes, is handed back as stuck and its reservation released; refusals that are waits by design, the preflight-receipt wait and an outage wait, never count; both bounds are configurable in the pace's layers; a refusal that cannot change (the issue finished at the base or on the default branch, or the hold now another's) hands back at once; and implement step --discard accepts a lane handed back as stuck (grounds: dead-letter redrive after a maximum receive count, as SQS maxReceiveCount; iss-2610161015368630).
• dcn-26101610403840682026-10-16 — A drain lane merges the default branch first (facilitator-on-delegation, drain-many-accounts): the lane's sync step, which already merges landed sibling lanes and has the merge head validated, also merges origin's default branch whenever it has moved, before the records and the push, and is entered again from arming and from the merge wait when the open pull request starts to conflict; a conflict confined to declared generated files goes back to the implementer as a fix round under the host's permissions, with the validators judging the result, so abcd itself runs no command the repository declares; any other conflict hands the lane back naming the files (grounds: the forge ignores the merge drivers a local merge uses, iss-2609240646538011; iss-2610161015410527).
• dcn-26101610403851522026-10-16 — Generated files never block a reservation (facilitator-on-delegation, drain-many-accounts): generated files are declared with the forge's own linguist-generated attribute in .gitattributes, read from origin's default branch, and never count as an overlap; a person's own abcd reserve that overlaps another of their copies warns instead of refusing, while reservations a drain makes keep the back-off between one person's copies; and a lane's reservation narrows to the files its branch changed at its first renewal after the implement stage, since narrowing never widens a hold (grounds: the forge's linguist convention, and lock de-escalation; iss-2610152125101468).
• dcn-26101610403900012026-10-16 — The drain's judge is a routed role (facilitator-on-delegation, drain-many-accounts): the drain's judgement is a new drain-judge role on the runner routing the build roles use; with no route the request goes to the host as today; abcd computes the remedy digest itself in either case (grounds: one routing for every model-run role, which the build roles already use; iss-2610161015422306).
• dcn-26101610403949702026-10-16 — A drain lane's stage shows in abcd peers (facilitator-on-delegation, drain-many-accounts): a drain lane's stage is published as a closed-vocabulary trailer on its reservation's renewal commits, and abcd peers lists it beside the reservation with each holder's hand-back tombstones of the last day; the people's status view inherits the same rows when it takes the reservation listing over (itd-2609151838312703, iss-2610150726331622); and the holder a process resolves through the forge is cached for that process (grounds: the reservation is the record every account already fetches, so the stage costs no new act; iss-2610161015434746, iss-2610161015433495).
• dcn-26101610403987912026-10-16 — A restarted hosted drain takes over its holds (facilitator-on-delegation, drain-many-accounts): a hosted session that restarts recovers its drain with abcd drain --take-over, which moves the person's own live reservations from a lost copy to this one as the drain reaches them; abcd keeps no drain state outside the checkout, and the draft's press release is narrowed to match (grounds: the principle durable-state-lives-where-the-platform-says-it-survives, since where a hosted session's files survive a restart is the host's and abcd stays host-agnostic; iss-2610161015422306).
• dcn-26101610403991172026-10-16 — A drain's pace reaches every lane (facilitator-on-delegation, drain-many-accounts): a drain carries its resolved pace and sub-agent ceiling into every lane it opens, and a running drain takes a new --pace or --sub-agents, recording them in its state and applying them from the next lane it opens and the lane in progress's next stage; a handed-back issue whose record blob on origin's default branch has changed is eligible again, and a finished handed-back run no longer passes its issue over (grounds: a setting the person gives is the drain's for its whole life, and a changed record is a new question; iss-2610161015417715, iss-2610161015457468).
• dcn-26101611351222942026-10-16 — Reserving a record being reopened on a branch backs off until the reopen is merged (facilitator-on-delegation, drain-many-accounts): the finished-record back-off reads only origin's default branch, so while that branch holds an issue resolved or wontfix, or an intent shipped or superseded, a branch that moves it back to open cannot reserve it, and no flag gets past the back-off; the reopen is merged first, and the record is reserved once origin's default branch holds it open again; accepted because the default branch is the one view every account shares, and an exception for one branch would let a checkout reserve work that origin still calls done (spc-2610161044461448 step 1; iss-2610160957404827).
• dcn-26101611413389232026-10-16 — A repository whose canonical home is itself a GitHub fork allows reservations there with reservation.fork_origin set to "allow" in .abcd/config.json (facilitator-on-delegation, drain-many-accounts): the key takes "allow" or "refuse", the bundled default, and is read through the layered configuration, the repository file winning over the machine file, only once the forge has named an origin push URL a fork, so a malformed key can stop no act on a repository that is not a fork; the fork refusal names the key (grounds: a fork that is the shared home of the work is where every account reserves, so the refusal would only stop it reserving; whether origin is the shared home is a fact about the repository, so its committed file may say so; refines dcn-2610161040378209).
• dcn-26101612232122182026-10-16 — reservation.fork_origin names the one fork whose reservations it allows, as "<owner>/<name>", instead of a bare "allow" (facilitator-on-delegation, drain-many-accounts): the key takes "refuse", the bundled default, or one owner and one name, each a plain GitHub name, read as before through the layered configuration and only once the forge has named an origin push URL a fork; a fork the forge names that is not the allowed one, compared without regard to case, is refused naming both, and a waived check is never silent: reserve, a run record and a drain lane say "origin is a fork the repository allows (<owner>/<name>)"; the bare "allow" is dropped, since it never shipped (grounds: a committed "allow" in a repository that is itself a fork is inherited by every fork of it, so a fork of the fork would reserve silently where no one working on the repository can see it; naming the fork keeps the waiver to the one repository the setting was written for; refines dcn-2610161141338923).
• dcn-26101613153858882026-10-16 — A drain takes its judgement hold on an issue once per request and never renews it on a poll; a request whose hold lapses unanswered is dropped, the hold released, and the issue asked again only after the drain's other eligible work, since judgement requests had no expiry of their own and a host that kept polling held the issue indefinitely (spc-2610161044461448 step 2).
• dcn-26101614122834502026-10-16 — A hand-back stands while origin's default branch holds the record at the blob its tombstone names (facilitator-on-delegation, drain-many-accounts): the claim package reads that blob from origin's default branch as last fetched, as an entity tag names the version a conditional request was made against; only a blob read there that differs lifts the hand-back, never an unreadable branch or a record held in no file or in several; a blob read from a branch the act's fetch could not refresh can only read as changed sooner than a fresh one; and a release asked to hand back a record the branch does not hold in exactly one file pushes a plain tombstone and says why rather than refusing, so the reservation never outlives the hand-back (grounds: entity tags and If-Match in RFC 9110 sections 8.8.3 and 13.1.1, and git's content-addressed object model; spc-2610161044461448 step 3; iss-2610161015370582).
• dcn-26101614122840182026-10-16 — Every issue lane's hand-back is published, and a drain judges a standing one from its view before it pushes (facilitator-on-delegation, drain-many-accounts): a lane of a run abcd build <iss-N> started publishes its kind as a drain's lane does, since the step's release already serves both and a hand-back names a person's decision whoever started the run; a drain move passes over a standing hand-back in its view, whichever copy made it, before any push or judgement, and the reservation it pushes still backs off one the view missed, which is the compare-and-swap; and a checkout holds a record as origin does when git's object name for its open file, as git hash-object stores it, equals origin's blob at the commit the move planned from, a promotion a killed call already made being found first (grounds: the view-then-compare-and-swap order of dcn-2610161040368890, and content-addressed equality as git defines it; spc-2610161044461448 step 3; iss-2610161015370582).
• dcn-26101614122874792026-10-16 — A hand-back tombstone names one of seven kinds and is read fail-closed (facilitator-on-delegation, drain-many-accounts): the kinds are the drain's four routed kinds (user-visible, trust-rule, design-finding, second-package), unachievable for a lane stopped after its fix rounds, which is the kind its route already names, stuck and closed, while no-found-at is left out because it never holds a reservation; a kind outside them, a record blob that is not one full lowercase object name, either trailer without the other, or either on a reservation that is not released, reads the tip as unreadable as every other malformed known trailer does, the writer refuses it before anything runs, and every reservation is measured against the longest such tombstone with a SHA-256 object name so it can always be handed back (grounds: closed-vocabulary, fail-closed parsing of input on a shared remote as language-theoretic security recommends, the reservation reader's existing rule for malformed trailers, and dcn-2610150000000001; spc-2610161044461448 step 3; iss-2610161015370582).
• dcn-26101614203143132026-10-16 — A drain does not ask a lapsed judgement request's issue again in the move it lapsed in, nor before a cool-down of the take-over margin (five minutes) from the move that dropped it, and then only after its other eligible work; that move releases the lapsed hold at once, every push a drain makes for a judgement is its hold except a renewal of this person's own live reservation, and a lapse is forgotten once its issue is asked again or answered. This refines dcn-2610161315385888: with no other work the tombstone and a new reservation landed in one move, so no other account ever had a window (spc-2610161044461448 step 2).
• dcn-26101618064335292026-10-16 — A plain release keeps a hand-back that still stands (facilitator-on-delegation, drain-many-accounts review round): a release with no hand-back of its own reads the reservation branch's first-parent line below its tip, at most 256 commits, to the first tombstone, and when that tombstone marks a hand-back whose record origin's default branch holds unchanged by the reading handBackStands uses, the new tombstone carries its kind and blob forward and the result says so (Result.HandBackKept); the walk passes renewals and take-overs, and an unreadable commit, a plain tombstone, the root or the bound keep nothing. The carried tombstone names the person releasing as its holder, since the closed trailer form names no earlier holder and a new trailer would read as unreadable to every binary already released. A release asked to hand back over a tip a plain tombstone already released publishes the hand-back as that tombstone's child, fenced by Tip on the tombstone or the reservation it released; with HandBackBlob it publishes none once the record's blob is another. Reserving and releasing an issue is not a person's change to its record, and a failed build start's clean-up is not a person's decision, so neither erases the hand-back (grounds: dcn-2610161040365515, dcn-2610161412283450; spc-2610161044461448 step 3; the review of steps 1 to 18).
• dcn-26101618264435242026-10-16 — A yes whose hand-back a move cannot publish keeps it pending in the drain's state and publishes it over the issue's next release on origin (facilitator-on-delegation, drain-many-accounts review round): when the hold the yes would release has moved on (this person renewed or reserved the issue again by hand, another took it over, a person released it), when the drain took none because this person held the issue live from this copy, or when the release did not reach origin, the route says the hand-back is not yet published and why, the drain keeps it (pending_hand_backs: issue, kind, the blob the yes was judged over, why, when) and carries it into the next drain, and each later move whose view shows the issue's tip as a tombstone marking no hand-back publishes it as that tombstone's child, fenced on the tombstone and on the judged blob; a tip already marking a hand-back, a record finished or changed on origin's default branch, or one origin holds in no one file ends it with nothing published. The drain never releases a person's own reservation to publish it, so it waits for the person's release rather than taking the issue (grounds: dcn-2610161040365515, dcn-2610161806433529, dcn-2610161315385888; spc-2610161044461448 steps 2 and 3; the review of steps 1 to 18).
• dcn-26101618265513092026-10-16 — A release the claim package refuses is never logged as released, and a hand-back never refuses a release (facilitator-on-delegation, drain-many-accounts review round): a tombstone that would pass the 4096-byte message cap, or the outbound policy, with its hand-back on it is pushed plain, and the result says the hand-back was not published and why (HandBackUnpublished), because a refused release leaves the issue held off every account until its lease runs out, which is worse than a hand-back a person can re-publish; a release the claim package still refuses for a reason of the tip's own is logged at reservation_release_failed, which the drain routing the hand-back tries again, never at reservation_released (grounds: review finding R1 on spc-2610031753359849 steps 1-3; spc-2610161044461448 step 3; the review of steps 1 to 18).
• dcn-26101618265579102026-10-16 — A drain move that has done anything writes it before it refuses, and says whether the answer given was taken (facilitator-on-delegation, drain-many-accounts review round): every refusal and error after the judgement block, the outage read, the merged-lane cleanup, a lane's routing, the run listing, the origin check, the judgement's reservation and its request, goes through refuseMoved, which writes the state a live drain holds first and then takes the judgement awaited as written as the one whose hold the move's clean-up keeps, so a hold the written state no longer records is released; a refusal after an answer was taken says it is not to be given again, and one met routing a yes before anything was taken says to give it again (grounds: dcn-2610161315385888; spc-2610161044461448 steps 2 and 9; the review of steps 1 to 18).
• dcn-26101618270363202026-10-16 — A drain's reservation that renews this copy's lapsed reservation asks the fork question, and the lane a no opens on a judgement's hold takes the fork check from the recorded judgement (facilitator-on-delegation, drain-many-accounts review round, refining dcn-2610161040378209): that push makes the reservation the drain's hold afresh, the one a lane then opens on, so it asks the forge as a fresh reservation does, whether the drain takes it to ask a judgement or a lane's start renews a judgement's hold that lapsed before the no; a drain's renewal of a live hold, a person's plain reserve that renews, and every release still ask nothing. Each judgement keeps the hold it was asked on (judgements[].hold), so the lane opened on that hold in any later move names the check its reservation could not make or waived, not only the lane the answering move opens (grounds: spc-2610161044461448 step 10; dcn-2610161141338923; the review of steps 1 to 18).
• dcn-26101618355297572026-10-16 — A drain plan read from a commit reads the intent store from that commit too (facilitator-on-delegation, drain-many-accounts review round): the promoted rule's question for a record the consistency pass filed (which intents name it back in related_issues) is answered from the intent store as origin's default branch holds it at the commit the plan read the ledger from, read through one bounded cat-file batch and parsed as intent.Load parses the checkout's, so a checkout behind origin never hands such a finding to a lane that an intent on origin owns, and a draft half-written in the checkout never refuses a plan read from origin; the checkout's store is read only for a plan that reads the checkout's ledger, and a commit's store that cannot be read, or holds a malformed intent, refuses the plan as the checkout's would (grounds: spc-2610161044461448 steps 1 and 4; ruling H12, dcn-2610161425496537; the review of steps 1 to 18).
• dcn-26101618370099572026-10-16 — Refines dcn-2610161412283450 on the blob a hand-back is judged by when origin's default branch could not be refreshed (facilitator-on-delegation, drain-many-accounts review round): a stale branch reads the record at the blob it held when last fetched, so it can err either way: a hand-back made over a newer blob than that reads as changed though no one edited the record since (a drain may then take the issue), and a person's edit this copy has not fetched reads as unchanged until it is (a drain keeps backing off). Neither is bounded by the act; each lasts until this copy's next fetch of that branch succeeds, which every drain move and reservation act tries first. The earlier record's claim that a stale blob only reads as changed sooner was wrong. A release asked to hand back while the branch could not be read at all (this checkout names none, or its tree would not read) says so, rather than that the branch holds no one record of the issue (grounds: dcn-2610161412283450; spc-2610161044461448 step 3; the review of steps 1 to 18).
• dcn-26101619311226062026-10-16 — Refines dcn-2610161412283450 and dcn-2610161806433529 on a reservation made over a standing hand-back (facilitator-on-delegation, drain-many-accounts review round 2): a drain's reservation that would take over, or renew, the reservation at the issue's tip reads that reservation's first-parent line down to the tombstone it was made over, the same walk a plain release keeps a hand-back by, and backs off when that tombstone marks a hand-back whose record origin's default branch holds unchanged, whether the reservation over it is lapsed or still live, from this copy or another; a walk that cannot be read backs off too, since it cannot show the hand-back no longer stands. A person's own take-over or renewal goes ahead, as a person's own reservation over the hand-back's tombstone does. Reading the tip alone let a drain build an issue that waits on a person once that person's reservation over it lapsed (grounds: dcn-2610161412283450, dcn-2610161806433529; spc-2610161044461448 step 3; the re-review of the fix round).
• dcn-26101619311309112026-10-16 — Refines dcn-2610161826443524 on when a pending hand-back ends (facilitator-on-delegation, drain-many-accounts review round 2): it ends only when a release publishes it, or when it is no longer due: a tip already marking a hand-back, a record finished or changed on origin's default branch since the yes was judged, a record origin holds in no one file, or a tombstone the hand-back would take past its cap. A move that ends it unpublished says in its next step and in the route that it was dropped, and why, and never that it was published. A release that could not read origin's default branch at all (this checkout names none, or its tree would not read) keeps it pending, whether the release pushed a plain tombstone or found one already there, since that failure says nothing about the record and passes; the next move's release publishes it once the branch reads (grounds: dcn-2610161826443524, dcn-2610161837009957; spc-2610161044461448 steps 2 and 3; the re-review of the fix round).
• dcn-26101700053575882026-10-17 — A drain lane's refusals are logged on the lane of an issue run only, and a stuck lane is discarded by the step verb (facilitator-on-delegation, drain-many-accounts): only an issue run, the run a drain or abcd build <iss-N> opens, logs a refused step, on its lane as the state's refused (the stage, the check, the reason, a count of the same refusal in a row, since when it has refused at that stage, and why it cannot change), so an intent's run still writes nothing on a refusal; the run record gains a line only when a new count starts or a refusal turns final, so a host polling a refusing lane does not grow it; the state's schema goes to version 13, which version-12 releases refuse as a newer abcd's file; the bounds are pace.stuck_refusals (bundled 3) and pace.stuck_minutes (bundled 60), claimed in the pace's namespace and read through its layers at every drain move rather than stored in the drain's pace, so a changed bound applies from the next move; a refusal that cannot change is a brief refused for an issue resolved or wontfix at the lane's base, and a land fence finding the reservation another person's or released as finished on origin's default branch; and implement step --discard takes a lane handed back as stuck, after which the issue run is complete (grounds: dead-letter redrive after a maximum receive count, as Amazon SQS maxReceiveCount, with the refusal contract of the loop kept where no drain reads it; spc-2610161044461448 step 5; iss-2610161015368630)
• dcn-26101700183078692026-10-17 — A drain's wait at the cap and on held work is a look-again time, not a gate (facilitator-on-delegation, drain-many-accounts): a move before waiting_until still looks, since passing over held work in the move's view fetches and pushes nothing, takes any issue freed since, and keeps the time first written while the same wait stands, so polling early never pushes the wait out; the cap is counted in the move's view for the holder this copy reserves as, read with no network act (claim.ReaderHolder), and where only the forge could name that holder, the reservation act's own count refuses with the typed claim.CapError, which the drain reads as the same wait; the cap's refusal stays an ErrRefused refusal, so abcd reserve still exits 2 on it, and only its advice changes, to waiting for a pull request to merge; held work is an issue passed over because another holds it or a footprint it shares, while an issue handed back on origin or one this checkout already has a run for is a person's and never keeps the drain alive; and the drain's state keeps schema version 1, its waiting_until and waiting being added as steps 1 to 3 added origin_wait and pending_hand_backs (grounds: a bounded poll as the standard consumer wait, the drain's pace window as its existing wait, and a closed vocabulary for what the state names; spc-2610161044461448 step 6; iss-2610161015371794, iss-2610161015422836)
• dcn-26101700284050292026-10-17 — The landing's push fence renews with the tip's own term, and a lane it stops on another person's hold is handed back as stuck (facilitator-on-delegation, drain-many-accounts): the check before the push is the land fence's own act, a fetch and a live renewal of this person's reservation from this copy, made for every run that holds a reservation, an intent's included, since a duplicate pull request is as wrong there; it renews with the tip's own term (renewalTerm) rather than the fence's day, so the push neither cuts nor stretches the lease the arming later sets; its refusals are the fence's, contention, worded for the push; a hold now another person's, or released as finished on origin's default branch, is a refusal that cannot change, so the drain hands the lane back at once through the stuck lane's route, kind stuck, with no new hand-back kind; and the drain's renewal of the lane in progress reads the move's own view, renews only a lane not parked at land (the merged-lane finish renews those), and names a renewal that failed or found the hold another's in the move's next step (grounds: lease keep-alives as Chubby and etcd keep them, fencing before a write, and one canonical primitive for the stuck route; spc-2610161044461448 step 7; iss-2610161015393523)
• dcn-26101701165827252026-10-17 — A land fence that cannot read the reservation from origin is a wait by design, never a refusal a drain counts toward a stuck lane (facilitator-on-delegation, drain-many-accounts; refines dcn-2610170005357588 and dcn-2610170028405029): at the push and at the arming alike, any fetch the fence makes that fails is never logged as the lane's refused, whatever git says, since the drain's own read of origin at every move already waits on an origin it cannot read and gives up on one that stays unread through the outage schedule; a failure that reads as a lost network (implement.IsNetworkFailure) also waits on the shared outage probe, as the push's own failure does, and any other failure does not, because the network probe proves only the network back (grounds: one bound for an unreadable origin, the drain's, rather than a second one at the lane; the push's netFailure as the existing shape; review of spc-2610161044461448 steps 5 and 7)
• dcn-26101701185062732026-10-17 — A drain lane's sixty-minute stuck bound counts only the time across which its refusals kept coming (facilitator-on-delegation, drain-many-accounts; refines dcn-2610170005357588): the minutes run from the first refusal at the stage to the last one logged, never to the move that reads them, so a lane that refused once and then sat idle is not handed back by a move that came only to renew it; a refusal more than fifteen minutes after the lane's last, the drain's look-again time, starts the time afresh at that stage, as a quiet that long is not refusing; the count of identical refusals in a row is unchanged (grounds: the dead-letter bound counts receives, not wall time, so time without a receive is not evidence the lane cannot finish; the drain's fifteen-minute look-again as the cadence a host stepping as told keeps; review of spc-2610161044461448 step 5)
• dcn-26101701264054122026-10-17 — A drain move renews only a lane its run still has in progress (facilitator-on-delegation, drain-many-accounts; refines dcn-2610170028405029): a lane the run has handed back, by its own step or as stuck, is renewed by no move, even while the drain has not yet routed it because its pace window is paused, so a reservation whose release origin refused is left to lapse or to the routing's release rather than kept alive by every move; a lane parked at land stays the merged-lane finish's to renew (grounds: a lease keep-alive belongs to work still being done, as Chubby and etcd sessions end with their client; review of spc-2610161044461448 step 7)
• dcn-26101707284535152026-10-17 — The routed drain judge is a loop role, asked and taken in one move (facilitator-on-delegation, drain-many-accounts, spc-2610161044461448 step 14; refines dcn-2610161040390001): drain-judge joins the implementer as a role outside the agent roster, so it needs no agents/ definition and the runner routing accepts it by name; the move that writes the host's request also writes the runner a brief of its own whose answer carries no digest, which abcd fills in from the remedy the brief showed, and takes that answer in the same move as --judgement would, so a no opens the lane on the reservation the drain took to ask it; the runner gets Read and Write alone, runs under the drain's lock and is bounded at fifteen minutes, a small part of the lease it is asked under; a runner that does not answer is a fallback receipt kept in the drain's state, and the host's request stands (grounds: one dispatch and one fallback rule for every model-run role, as the build roles use; a strict answer read once and validated by the same gaps as the host's; a bounded worker inside a lease, as lease-holding job queues bound their workers; iss-2610161015422306)
• dcn-26101707360626492026-10-17 — A drain's --take-over is the move's alone (facilitator-on-delegation, drain-many-accounts, spc-2610161044461448 step 15; refines dcn-2610161040398791): abcd drain --take-over lets this person's own live reservation from another copy through the move's view (Snapshot.Contention takes the holder a take-over reserves as) and the reservation act takes it over, as abcd build --take-over does; the flag is given per move and never kept in the drain's state, so a later move without it passes such an issue over again, naming the flag; it never moves another person's reservation, and a holder this copy cannot name from disk lets nothing through (grounds: a take-over is consent to one act, as build's and reserve's are; a flag kept for a drain's life would later take over a copy the person still works in; iss-2610161015422306)
• dcn-26101707504116282026-10-17 — A running drain's new pace and its re-admissions (facilitator-on-delegation, drain-many-accounts, spc-2610161044461448 step 16; refines dcn-2610161040399117): every lane a drain opens starts on the pace stored in the drain's state, with the layer and origin the drain resolved, never on what the configuration resolves at the lane's start; a running drain takes --fix-rounds as well as --pace and --sub-agents, since the fix rounds are the pace's fourth number set alongside it (ruling DR1), each number named replacing the stored one and the rest kept, written to the drain's state and to each in-progress lane's run pace, which that lane's next stage reads; a route keeps the blob of the issue's record on origin's default branch, and the drain re-admits a handed-back issue once that blob differs, an answer taken before the hand-back deciding nothing; an issue run whose lane was handed back is over for the drain alone, so the drain neither passes the issue over for it nor resumes it and opens a new run, while abcd build keeps resuming it as before; without origin nothing records a change, so a handed-back issue and an issue whose run here is over stay passed over (grounds: a setting the person gives is the drain's for its whole life; a changed record is a new question, read from the same blob the tombstone carries; a change confined to the drain leaves build's resume untouched; iss-2610161015417715, iss-2610161015457468)
• dcn-26101707591808942026-10-17 — Every lane renewal names its stage (facilitator-on-delegation, drain-many-accounts, spc-2610161044461448 step 18, the loop's half; refines dcn-2610161040394970): each renewal the loop pushes for a run's reservation, a drain move's, a lane step's, the land fence's and a resumed build's alike, sets claim's Request.Stage to the stage the run's current lane is in, spelled as the loop's Stage values worktree, brief, implement, validate and land, which are claim's LaneStages; a lane done, handed back, held or discarded names no stage, since it performs none; a loop test holds every Stage the loop renews with to claim.ValidLaneStage, since claim cannot import the loop (grounds: a run's state does not mark a drain's lane, and a build lane's stage is as useful to a peer and costs no act; the stage a worker reports is the one it is in, as job dashboards read it from the record each worker writes; iss-2610161015434746)
• dcn-26101709190404862026-10-17 — A lane's reservation narrows only at its landing, once its validators have passed, and a resumed issue run keeps the narrowing (facilitator-on-delegation, drain-many-accounts step 12, refining dcn-2610170734071361): the narrowing is taken at the first due renewal while an issue lane is at StageLand, never during its validate stage, since a fix round there can still change a file of the reservation's footprint that a narrowing would have freed; the narrowed set is the lane's own changes, git diff --name-only from the merge base of its head and origin's default branch to its head, so a merged default branch's files are left out and a conflict resolved in a sync's merge commit counts; a changed file within the footprint that no reservation may carry (claim.ValidFootprintPath) means no narrowing at all, since leaving it out would free a file the lane still changes; claim drops a Narrow naming such a path and renews anyway, as it does one over the message cap, so a renewal never fails over its narrowing; a resumed issue run whose reservation tip lies within the record's footprint renews the tip as it stands, the widening re-reserve kept for an intent's record alone (grounds: lock de-escalation is safe only once the held set can no longer grow; a renewal that fails lets the reservation lapse while the lane lives; review of spc-2610161044461448 steps 8, 12 and 13)
• dcn-26101709453789772026-10-17 — A re-admitted issue's newer run is the issue's run for every verb (facilitator-on-delegation, drain-many-accounts, spc-2610161044461448 step 16 fix round; refines dcn-2610170750411628): an issue run whose lane was handed back and that a newer run of the same issue has followed is superseded, so abcd build <iss-N> resumes the newer run, and a step or a run record read with no run named addresses it, the superseded run no longer counting as one in progress; a handed-back run with no newer run is resumed by build as before; and a drain passes over every run of an issue that was not handed back, complete runs included, so it never opens a second run or a second pull request for an issue whose pull request may still be open (grounds: once re-admitted, the newer run holds the issue's work and reservation, and the handed-back one has nothing left to run; a complete run's pull request settles the issue; review findings 4 and 5 of the step 14 to 18 fix round)
• dcn-26101709472469372026-10-17 — A lane that leaves its landing reserves its whole footprint again before it goes on, and a resumed issue run reads its tip as narrowed only at the landing (facilitator-on-delegation, drain-many-accounts step 12, refining dcn-2610170919040486): when a landing's sync (the first land step's, or the re-sync from the arming or the merge wait) sends an issue lane back to a fresh round, the step reserves the record's found_at again, with the overlap-checked widening a resumed run makes, before the lane's state moves on, since the landing's renewal may already have narrowed the hold and a fix round after the fresh round can change any file of the found_at; a widening refused by another's reservation or by the cap refuses the step for a person, naming what it met, the lane left at its landing with its sync unpushed; a resumed issue run renews a tip within its found_at as it stands only while its lane is at the landing, and anywhere earlier reserves the found_at again, judged for overlap, so a found_at widened mid-run is published; a narrowing that was due and could not be made (a changed path no reservation may carry, a default branch, merge base or diff git could not read, or a narrowing claim dropped) is said once in the renewal's record line, as reservation kept at its full footprint with the reason (grounds: lock de-escalation is safe only while the held set cannot grow, and leaving the landing lets it grow again; final review of spc-2610161044461448 step 12)
• dcn-26101709483568822026-10-17 — A drain's re-reserve carries a lane's stage only for a concurrent build, and never under --take-over (facilitator-on-delegation, drain-many-accounts, spc-2610161044461448 step 18 fix round; corrects the premise of dcn-2610170809478944): a drain move passes over every issue with a live run in this checkout before it reserves, so its reservation reaches an issue whose lane here holds it live only when abcd build started that run after the move read the runs, and only then does the stage it names keep the lane's stage on origin; under --take-over the drain's reservation names no stage, since a take-over is never a renewal and claim refuses a stage beside it (grounds: the earlier record's ground that the drain re-reserves its lane's issue at each move does not hold; a take-over is consent to one act, which a stage would refuse for an unrelated reason; review finding 7 of the step 14 to 18 fix round)
• dcn-26101710094982182026-10-17 — A lane its landing's sync sends back reserves its whole found_at again before the sync merges, not after (facilitator-on-delegation, drain-many-accounts step 12, refining dcn-2610170947246937): once the sync knows it will merge origin's default branch into an issue lane, it makes the overlap-checked widening first, before the merge commit or any other local change, so a widening refused by another's reservation or by the cap refuses the step for a person with the branch and the worktree left at the judged head, nothing merged and nothing pushed; the re-sync from the arming or the merge wait takes the same path; the move keeps the check only for any other way a lane leaves its landing, and takes no act when the sync already made it in the step (grounds: a widening judged after the merge left the loop's own merge on the branch when it was refused, and once the default branch moved again the retry read that merge as a foreign move of the branch and stayed refused until a person reset it, each refusal counting towards a drain handing the lane back as stuck; final review of the fix round on spc-2610161044461448 step 12)
• iss-2610150726331622abcd peers does two unrelated things: it lists records that sibling worktrees and local branches hold that this checkout does not (an agent's duplicate check before filing), and it fetches and lists the reservations on the shared remote. The second duplicates abcd status from itd-2609151838312703, the people's view of what everyone else is doing. The product thinker ruled on 2026-10-15 that peers keeps its name for its future meaning, which sessions are running now, local first and later over a private network such as Tailscale or WireGuard (the session register itd-2609150819440345), and that the local duplicate check belongs under abcd status --local.
• iss-2610152125101468A reservation footprint can hold a whole directory (docs, hooks, internal/surface/cli), and the overlap check then refuses every other reservation naming any file inside it. Generated files that every verb-adding branch regenerates, such as docs/reference/cli/commands.md, sit inside such directories, so two unrelated intents held by the same person from two copies could not both declare an honest footprint: on 2026-10-15 the messaging reservation's renewal was refused twice and had to leave out .githooks/pre-push, the ruleset mirror and the generated CLI reference, which it does change.
• iss-2610160957404827abcd drain reads the issue ledger of the checkout it runs in and never checks whether that checkout is behind origin's default branch: from a primary checkout 185 commits behind main, the dry run listed 162 eligible issues from the stale ledger, many since fixed or changed, and a run would judge, reserve and work from that list.
• iss-2610161015368630A lane that refuses at a step without handing back (a conflicting pull request at arming, the land fence, or a brief refused because the issue is already resolved at the base) is read by laneOutcome as in progress, so every later drain move answers "drive" that lane and the drain opens nothing more; implement step --discard and --release act only on held lanes, so only removing the run directory by hand frees it.
• iss-2610161015370582A drain's hand-backs and judgements live only in the checkout that made them: routeHandBack promotes the issue to an intent draft in that checkout, uncommitted, then the release pushes a tombstone so the issue reads free everywhere, and eligibility ignores related_intents, so every other account's drain judges or works the same issue again and promotes it to its own draft id.
• iss-2610161015371794At the per-person cap of ten live reservations a drain move refuses with exit 2 (the cap is not treated as contention), returns before writing its state so the judgement just answered is lost, and advises releasing a reservation, which would free an issue whose pull request is only waiting for a merge.
• iss-2610161015381750Lanes parked at land are renewed on every drain move from local state alone, whatever their pull request's state, and a lane whose head is not on main is skipped silently, so a pull request closed, dropped from the merge queue or conflicting after arming keeps its issue reserved and counted against the cap indefinitely and next never names it.
• iss-2610161015387318The host judgement is asked before the issue's reservation is checked, and an issue another account holds is retried on every move with a full check (plan, sibling worktree scan, fetch), so several drains all judge and retry the same head of the queue, since every drain takes the same order (category, severity, oldest).
• iss-2610161015393523A drain's in-progress lane is renewed only when its own step or receipt runs, so if the host pauses the lane for more than the two-hour default lease another account takes the reservation over five minutes after expiry and works the same issue; the land fence runs only at arming, after the push and the pull request, so the duplicate becomes a public pull request.
• iss-2610161015397586One unreadable sibling worktree makes the peers check fail for every issue, so a drain judges each issue, passes it over as contended, and ends with nothing eligible left; the primary checkout carries 108 worktrees, 46 locked by another tool.
• iss-2610161015400509Reservations are made only on the remote named origin, and nothing checks that origin is the repository pull requests target, so an account whose origin is a fork reserves on the fork, invisibly to every other account, and works issues others hold.
• iss-2610161015410527Drain lanes never merge the default branch before their pull request, and the footprint taken from found_at never names generated files, so lanes from several accounts conflict on generated files: of 259 merges to main since 2026-10-01, 54 touched docs/reference/cli/commands.md, 29 surface.json and 18 the brief's surfaces README.
• iss-2610161015417715A drain's --pace and --sub-agents reach only the lane opened in its first move; later lanes resolve their pace again from configuration, so the old drain's first lane ran 10080/0 with six sub-agents and its next ran 120/300 with two.
• iss-2610161015422306The drain's host judgement has no route to a command-line model, so an unattended drain needs a host agent looping; in a plain terminal a person writes the JSON answer, sha256 digest included, by hand; and a hosted session that restarts loses .abcd/.work.local, so its new copy key reads its own reservations as another copy's and the advice names --take-over, which drain does not accept.
• iss-2610161015422836Issues passed over because other accounts hold them still let a drain stop as empty with complete true, so the next abcd drain begins a new drain with no stored judgements and judges everything again.
• iss-2610161015433495With a git email that is not a GitHub noreply address, every reservation act calls gh api user again, uncached.
• iss-2610161015434746abcd peers shows each account's reservations but nothing of a drain lane's stage, its judgements or its hand-backs, so one person cannot see what another account's drain is doing.
• iss-2610161015448977A failed fetch from origin refuses the drain move instead of entering the drain's outage wait.
• iss-2610161015457468A resumed drain keeps what it began with for its whole life: its stored pace and sub-agents cannot be changed (--pace is refused while it runs), the issues it handed back stay excluded until it ends, and an issue with an old handed-back run is passed over with 'drive or finish that run' for as long as that run directory exists.
• iss-2610252224317335spc-2610161044461448 required the 2026-10-16 three-account lab to be rerun on the built binary, every account on one build, before it closed. No rerun is recorded in the close commit (80764362b), the history or the lab store, so three shipped intents rest on per-step tests with two or three clones of one local bare origin: itd-2610161016391855 (evidence from drains on several accounts), itd-2610161016394967 (drains share the work, end to end) and itd-2610161016401115 (a drain runs unattended for a day).
• itd-2609151838312703Sessions under any account, on any machine or in the cloud announce what they are doing through short fixed-form announcements on the shared remote, a person reads everyone's status with one command, and what is really a hold stays a reservation
• spc-2610150728396006sessions-announce-what-they-are-doing