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booth/ROADMAP.md
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vh c3a97c1b64 feat(u4): a booth's lifetime is derived from its state, not from a boolean
`.forever` was the only way to say three different things — "this is durable",
"I have not answered yet", "I am still looking" — and the census said it was
carrying all three: 17 of 24 live booths (70%, up from 54% the day before).
Three of the four booths in the fleet awaiting an answer had been pinned by
hand as well, and 10 of the 17 were younger than the TTL, so the sentinel had
bought them nothing and was pressed pre-emptively.

Only the first meaning is what `keep` means. The other two are facts the
service already held and did not consult.

    KEPT       `.forever` present                      never swept  (unchanged)
    HELD       an open pick, or marks we cannot read   never swept  (new)
    EPHEMERAL  everything else                         24h          (unchanged)

Viewing is activity: a deliberately-served response from a booth's own page
route writes `.viewed`, which is a dotfile and not a `.lock` dotfile, so
`_newest_mtime` already counts it. There is no new arithmetic — `booth_age_seconds`,
`is_expired` and `expires_in` are unchanged. Machine reads are excluded on
purpose: an agent must not be able to hold its own booth open by polling for
the answer it is waiting on.

The hold is unbounded, and what makes that safe is visibility plus two exits
that already existed. Every surface whose chrome the Booth owns says
`held until answered` where the countdown was, and `booth rm` / the UI x /
`DELETE /b/<n>` take a held booth exactly as they take a kept one. A hold is
protection from the timer, never from the operator.

Three cross-frontier panels ran and each found a class the others could not:

  * the paraphrase panel found that two reads of one file are not one read of
    one state — the contract's `is_held(marks_for(c), read_error(c))` could
    resolve to `([], None)`, the pair that deletes. `hold_read` is one read.
  * the code-review panel found, 4-of-4, that the booth header's board branch
    rendered no lifetime at all; and that five of seven invariant tests passed
    under the change that defeats them.
  * the bug-hunt panel found four more paths where a failed read still
    authorized a delete, and a `record_view` that followed a planted symlink.

`is_held` became `hold_reason`, which returns the reason rather than a bool
beside a string that can disagree with it.

Prediction, to re-count on or after 2026-10-06: the `.forever` rate falls to
the booths that are genuinely durable references. Only 4 booths carry marks at
all, so this rests on both halves of the unit; a null result cannot distinguish
a wrong diagnosis from a habit that outlived its need.

406 tests (341 before). Contract: docs/contracts/u4_derived_lifetime.contract.md
2026-09-22 09:44:25 -07:00

7.3 KiB
Raw Blame History

The Booth — roadmap

Design: docs/design/information-architecture.md. Current version: 0.3.0 (U1, U2, U4 and U5 landed; extracted from eshpfi 2026-09-21).

v1 target

What must be true to cut 1.0. Seven capabilities, each closing a measured defect — not a wish. The measurements are in the IA doc.

# capability closes unit
1 One item record — landed ce598b3 captions never reach the zoom view (never sent, not lost) U1
2 Marks — landed c7f9437, released v0.2.0 5 mechanisms for 1 job; operator→session loop runs through chat U2
3 Declared embed seam — /_booth/embed.js, chrome mounts via DOM 6 regexes injected into arbitrary author HTML, load-bearing for asks U3
4 Derived lifetime — landed 70% of booths on the .forever escape hatch (54% when first counted) U4
5 Self-announcing booths — landed c015a91, released v0.3.0 job 5 had no home, so it lived on the link board as 145 dead rows U5
6 Benches — registry, identity, enforced rule, migration 69% link-board rot; the same bench posted 5× U6
7 Navigation at 270 items — sections, rail, filters, grid keyboard one flat wall; subfolder structure discarded at render U7

Ordering is dependency-driven, not priority-driven: U1 → U2 → {U3, U4, U5} → U7, with U6 independent of all of them (different storage, different surface) and therefore the safest thing to land first or in parallel.

U1, U2, U4 and U5 are landed. U3 is unblocked and unstarted; U6 remains independent and unstarted; U7 waits on the rest.

U5's adoption is a measured prediction, not a finished result, and it is TWO predictions rather than one. The operator declined a fleetwide announcement so that adoption could be told apart from design; within fifty minutes of the deploy a peer that had been told nothing (comfy-dev) created a booth and it announced itself with a handle and an empty why. That is the split:

  • The handle rides for free. It is written by booth new and booth add, so every existing caller starts announcing without learning anything.
  • The why has to be learned. It needs someone to know the flag exists.

Both get re-measured on 2026-09-29:

find ~/booth-data -maxdepth 2 -name .booth.json | wc -l            # free
grep -l '"why": "[^"]' ~/booth-data/*/.booth.json | wc -l          # learned

A high first count with a near-zero second is the predicted shape of "nobody was told" — an adoption failure fixed by announcing, which is a different thing from nobody wanting it. Same instrument as U4's .forever prediction below.

Cross-cutting invariant — deterministic order, everywhere

Every ordered collection the Booth renders must have a stated, deterministic order. Not "usually stable", not "whatever the filesystem yields" — a rule someone can name, that produces the same sequence on every render of the same state. The rule itself is free to be anything defensible: byte order over a path, creation time, an explicit number, even an arbitrary-but-recorded sequence. What is forbidden is no rule.

This matters more here than in most services because the Booth's whole job is comparison. The operator is judging pancake-v3-full against pancake-v4-full, tile 47 against tile 47. If the order shifts between two page loads — or differs between the gallery, the zoom ring, the zip manifest and the marks read — then every positional reference the operator makes ("the third one from the left", "the one after the banded one") is silently wrong, and a flag or a note lands on the wrong artifact. Non-determinism does not present as a bug report; it presents as the operator's judgment being quietly misfiled.

Where it already binds, and what the rule is in each case:

collection rule
items in a booth sorted(rel) — byte order over the booth-relative path (U1 INV-3)
the zoom prev/next ring the item order, filtered to images — same sequence, one source
caption sidecar resolution sorted scan, so two media files sharing a stem resolve the same way every time (a real non-determinism U1 removed)
marks in a booth (created, id) — time, with the id as tie-break so two marks written in the same second cannot swap
legacy ask import (mtime, name), which is the order list_asks gave them
link board rows pinned first, then newest-first
a booth's announcement not a collection — one flat record per booth, nothing to order (U5)

U4 added no ordered collection — a booth's lifetime is one state per booth, not a sequence — so the rule above did not need a new row. The three lifetime surfaces (index card, booth header, marks page) render through ONE macro precisely so they cannot disagree, which is the same property stated for ordering: one rule, one place, every surface reading it.

Where it is still to be decided, and must be before the unit ships: U7's section ordering and its compare pairing (sections need a stated order among themselves, not just within; pairing by filename needs a rule for what happens to an unpaired file), and U6's bench listing.

The test for any new ordered surface: can you write the rule down in one line? If not, it does not have one yet.

Explicitly NOT in v1

  • Backward compatibility with the ask CLI verbs. Pre-1.0, and ask / asks / answer become thin aliases over marks rather than a second code path. The 17 consuming handles get one althing note naming the change — the one case where telling peers is real coordination and not a broadcast.
  • A migration that deletes anything. links.md is archived verbatim and committed before the registry is seeded from it.

Parking lot

Deferred with a home, per the anti-creep gate. Default is park; these were weighed against the v1 path and lost on purpose.

item why parked
Compare mode — pair-by-name A/B across subfolders The best idea in the set, and the only one that is a new capability rather than a fix for a measured defect. The four-booth pancake-v3/v4 dance still works. First thing in v1.1.
Virtualized / progressive grid loading Speculative. 270 <img loading="lazy"> may be fine. Measure the real booth before optimising it — if it renders inside a second, this is invented work.
Bench uptime history + graphs The v1 need is "is it dead", which one flag answers. A time series is a different product.
Cross-booth search No evidence of the need in the usage data.
Per-viewer state (who has seen what) The Booth has one viewer. Revisit if that stops being true.
Auth Standing non-goal. LAN/mesh-internal. Blur stays cosmetic and says so.

Post-v1, already committed

  • SVOS theme retrofit by design-dev. Runs as a parallel track, not a v1 gate: we own the information architecture (it is driven by the measurement above), design-dev owns the visual and interaction system. The handoff is a /vor-ui brief written against the landed v1 structure — the same shape hamr-dev and pewpew-dev used.

Gate

A proposed feature is on the v1 path or it is parked. Default: parked. When both are defensible, park it — same asymmetry as the patch-default in SemVer. Applies regardless of who proposed it.