The setup exclusion landed for the model arm only, because only a model
pick stamped a source. A seeded run returned setup's action through the
same entry with no marker, so its denominator still counted the login
while the model arm's did not, and the two are compared.
serializeAction names setup and seeded on the wire, so both arms are
counted by one rule. An already-recorded trace names nothing and keeps
exactly the count it was reported with; unattributed_actions counts those
steps so the old denominator cannot pass as the new one. TraceVersion is
deliberately unbumped: oracle-reduction refuses a differing version, and
a bump would make all 169 recorded runs unreplayable.
folio extracts lastAction, and extractor values are persisted as
extractor_changes, so the password still reached the run directory
through the spec after the three render sites were closed.
The wrap sits in the runner rather than in lastActionFields because the
hosts hold the next step's tree, not the one the action was chosen
against: a field that stops being secure between the two would publish
what the trace withheld. Live and replay now agree byte for byte.
A folio login run wrote the account email and password in cleartext into
llm-calls.jsonl, 166 times in one run, beside screenshots of the same
screens. Three sites rendered it: the recent-action memory, the candidate
list, and the trace. One helper now covers all three so a fourth cannot
bypass it, and the driver still receives the real text.
Android redacts every typed value because it cannot tell a secure field
from any other. That asymmetry is deliberate and documented: safe by
default on the target that cannot tell.
ios reads it off SecureTextField, which the companion already sent and
nothing read; web reads input[type=password]. Android cannot: the native
tree mapper drops the password attribute before the sidecar sees it, so
the fact is three-valued and null there rather than a false that would
read as "not secure".
Device was read from --device, which only an android run sets, so every
ios meta.json left the field empty and the trace could not say what
hardware produced it.
A green llm run carried no evidence of how much the generator actually
drove: the count was inferable only from llm-calls.jsonl outcomes, and
the number the refusal turns on was invisible in the run's own output.
A dead provider against folio exited 0 on a real emulator: the login
setup dispatched three actions before the generator was consulted, so
DispatchedActions was 3 and the gate never fired while the generator
drove the app zero times across 83 steps. Any spec with a login setup
was immune, which is the normal case.
Summary counts generator actions separately and the refusal reads that.
NoActionsDispatchedError becomes NoGeneratorActionsError, because a run
that dispatched three login taps was lying in the old name.
Same argument as the zero-property refusal: an instrument that drove
nothing must not report a clean result. A first-screen violation still
wins under --exit-on-violation, --allow-no-properties exempts the
extraction sweeps that measure reach rather than judge, and one
dispatched action is enough, so a generator quiet on some screens is
untouched.
NextAction returning ErrNoAction left the step with no skip reason, so a
run whose every model call failed on transport, a non-2xx, an empty
choices array or an echo mismatch printed no violations and exited 0.
Only llm-calls.jsonl knew it had never touched the app.
The reason now travels the path the other five already take, so it
reaches the trace, the summary, and the campaign's dispatched-action
exclusion. A held step never asks and keeps carrying nothing.
meta.json carried the host but not the device, so a trace could not say what
hardware produced it without the campaign manifest beside it. An experiment
splitting cells across api levels could only join them through that manifest.
Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
A sweep launched at six serials, three of which had been deleted from the
host. 19 of 20 runs were lost, and not because half the devices were wrong:
a worker on a dead serial fails in about 31 seconds and immediately pulls
another seed, so three bad workers drained sixteen seeds while the three good
workers were still inside their first run.
Fast failure is more dangerous than slow failure, because the fast failure
consumes the resource the slow one would have left alone.
Preflight names every missing serial before the first seed is dispatched.
Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
The fixture inputs carried no class at all, so the test could not fail
the way the bug did. They now carry folio-web-shaped classes, and the
test asserts the editable gate the hint is read behind.
Compose for wasm never focuses the semantics node carrying the testTag.
It proxies keystrokes through a hidden 1px backing input that is a
sibling of the a11y tree, so the node the runner tapped never held focus
and confirmFocus refused to type into every Compose text field.
Focus is re-attributed to the smallest editable whose box holds the
caret's centre. Centre-point rather than full containment because the
caret's height comes from the text style and the field's from its layout
box, so a taller font would silently drop back to refusing.
document.activeElement names the host, not the node focused inside it, so
a Compose-for-wasm app that mounts its tree in a shadow root reported
focus on div#app forever. confirmFocus could never be satisfied and every
InputText step aborted the run after three tries.
selectAllScript already descends the boundary; the tree builder did not.
A spec with no properties drove the app and reported no violations,
which is indistinguishable from a spec that judged something and found
nothing. Execute now aborts after loading the spec unless the run asks
for the opt-out by name.
matchSelectorKind had no case for tag, so it fell through to the raw
attribute path and matched by substring. web-runtime.ts compiles tag to a
CSS type selector, so tag:li resolved to <todo-list> on the Go side and to
nothing on the web side.
Locks the three facts the campaign was missing: a window that draws after more
polls than the old count allowed still clears the gate, an app that never comes
forward ends the run with a typed error, and both the startup verdict and every
mid-run step the guard could not recover are readable off trace.jsonl.
Eight polls is not a budget. Each poll costs whatever the driver's idle wait
happens to take, so the same launch cleared the gate on one device and
exhausted it on another: across 80 runs of one app, the gate reported "app
never reached foreground" on 38 of 40 Android 14 runs and 0 of 40 Android 16
runs, and it was wrong every time. On API 34 settleForForeground returned in
~100ms, so the eight polls gave up 1.2s into a launch whose window drew at
~1.9s; on API 36 the same eight polls spanned 3s and covered it. The Android 14
runs then spent their first step on the launch animation instead of the app,
which is the one-step offset that came out of that campaign looking like a
platform difference.
The gate now polls for a fixed 15s at a 250ms floor, so its verdict is the same
duration on every device, and a verdict of "not in front" ends the run instead
of warning and carrying on: a run that never got its app on screen holds no
evidence about the app, and the trace records why at step 0.
A step that never had the app under test in front of it observed something
else, and nothing in the trace said so. Index 0 carries the startup gate's
verdict, so a run that never started is a trace holding that record and nothing
else rather than a run that explored and found nothing.
both sides independently fixed the same three bugs, so each one had to pick a
winner rather than keep both implementations.
extractor encoding: master's recordableValue in worker.go wins over ours in
marshal.go, since master's is pinned by extractor_encoding_test.go and ours had
no tests. our error semantics stay: encodeExtractorValue still returns an error
instead of nil, so an extractor cannot vanish from the trace silently.
apply errors: only the residual generic branch takes master's unconfirmed copy,
where the device may have committed the action before the call failed. the
finer branches that know nothing was dispatched keep lastAction = nil, and our
actionSkipReason taxonomy stays alongside master's held/skippedVerification.
selector matching: our matchAttr with matchSelectorKind wins over master's
match, since ours also handles idPrefix. matchSelector now calls it, which git
did not flag as a conflict and left calling a function our side had deleted.
the ltl doc comment takes master's correction: an unbounded eventually that
never fires IS violated at run end.
the campaign tool and the sweep tools that drive it have to read a seed specification the same way, or a sweep records an intent that differs from what ran. parseSeeds becomes seedspec.Parse with no behaviour change.
reads a run directory's meta and every step, and refuses a step whose trace_version is not the current one: an older step stores no element depths, so its hierarchy decodes with a nil root and a structural hash over it is the empty string for every screen. Discover walks a tree for the directories holding both meta.json and trace.jsonl.
BundleSpec produces the goja bundle a run of a spec loaded, seeded as that run was. an offline replay has to load the same javascript, and the seed is one of the bundle's defines, so it is part of the bundle's identity.
an offline replay of a trace needs the name-to-index mapping the spec fixed at load, because a trace records extractor values by name, and needs each property's formula built over this verifier's own predicates so a rewritten formula observes exactly what the engine's evaluator does.
observation and apply now run under a timeout, so a driver that stops answering ends the step rather than the run. an undelivered gesture and a selector that matched nothing are recorded as their own skip reasons instead of counting toward the apply-failure streak, a failed observation is counted apart from a screen with nothing on it, and the summary names both. resolveCoordinates hands a point outside the viewport to the driver rather than dropping it: only the driver knows whether it can scroll that point back into reach. exceptions and navigations are collected per step and a Scroll goes to a driver's Scroller when it has one.
a step now carries trace_version, the platform log lines and uncaught errors behind state.logs and state.exceptions, the document-replacing navigations seen since the previous step, and observation_error naming why a device read produced no tree. version 0 is a step written before those fields existed, which is what separates a trace that cannot answer the question from a step that had nothing to report.
a page navigation replaces the runtime, so the seeded picker restarted the seed's stream at its first draw on every reload and a trace could not tell a reload from a generator repeating itself. the driver now drains the main-frame navigations it saw, reports the page's buffered uncaught errors so state.exceptions is the page's list on the goja host too, and carries the picker's draw position out of v8 and back in around each decision.
getBoundingClientRect keeps reporting elements the growing document pushed below the emulated viewport, and input coordinates are viewport-relative, so a click below the fold was hit-tested to the document root and the step read as an action that landed. every gesture now scrolls the point back in and reports ErrGestureUndelivered when nothing is under it; a selector that names no node reports ErrSelectorMatchedNothing rather than waiting. swipe dispatches a real touch stream instead of page-synthesized pointer events, scroll is a wheel so its distance is exact rather than a fling, and the second tap of a double tap carries click count 2 so dblclick actually fires.
the dump emitted a fixed standard attribute set, so a spec reading data-cents or data-account-id saw undefined on the goja host and nothing at all in the trace. it now keys every attribute by the name the markup writes, derived keys overwriting. checked and selected come from the dom property rather than whatever a component left on the object, which is also what the page-side element handle now reports, so a ticked box reads as ticked instead of reporting its starting state forever.
a Tree marshalled to json kept only the flat element array, so a stored tree decoded with a nil Root and resolved no selector. it now stores each element's pre-order depth and rebuilds Root from it, re-seating elements so Tree.Elements and &node.Element stay one pointer. a stored tree without depths keeps the old shape. a boolean field the producer sent as something other than a boolean now leaves the flag unset and increments UnreadableFlags rather than failing the whole dump.
an element's text is its whole subtree's text on web and on ios, so every ancestor of a matching element matched too, up to the root. a match a descendant also makes is now dropped, in internal/hierarchy, in the chrome xpath translation and in the page-side web runtime, so all three resolvers name the same element. a raw attribute now matches on a substring (exact for true/false) the way the docs describe, and tree-level FindBySelector considers the root, so ax.find("id:page") and ax.find({id: "page"}) agree.
OUT_OF_RANGE becomes ErrGestureUndelivered on tap, long press, double tap, swipe and the selector fallback; NOT_FOUND on TapSelector becomes ErrSelectorMatchedNothing. without this the runner reads either as a plain apply failure and counts it toward the failure streak.
the companion now emits each node's depth, so the hierarchy mapper can find the containers that clip content reaching past their own frame and mark them scrollable:true, the same fact android reads off uiautomator and the web driver derives from overflow. a dump without depth makes every element a root and roots are never marked, so the legacy bridge reports no scroll rather than a guessed one.
the hierarchy reaches past the screen wherever a scroll container holds content below the fold, so an action derived from it can name a point no touch lands on. tap, double tap, long press and swipe now report ErrGestureUndelivered for such a point, the far edge exclusive because a touch at x == screenWidth arrives at screenWidth-1. resolveSelectorCenter reports ErrSelectorMatchedNothing rather than a bare error.
escape is a key a spec has real use for and no platform could send it. android maps it to KEYCODE_ESCAPE, the ios companion to HID usage 41 and the in-simulator runner to XCUIKeyboardKey.escape, and the Key union accepts it so it can be written at all.
ErrGestureUndelivered marks a coordinate gesture that reached no element and ErrSelectorMatchedNothing a selector that named nothing, so the runner can tell them apart from a device fault. Scroller lets a driver whose scroll is not a finger drag take Scroll separately from Swipe. ExceptionReporter and NavigationReporter carry an app's uncaught errors and document-replacing navigations to the runner.
* docs: add the apache 2.0 license text
package.json has declared Apache-2.0 since the first release and .goreleaser.yaml
globs LICENSE* into the archives, so that glob has been matching nothing. npm
only picks up a license from the package directory, hence the copy under
pkg/spec.
* fix(sidecar): close the soft keyboard after typing on android
* test(sidecar): pin the guarded ime dismissal
* fix(sidecar): treat a failed ime probe as no keyboard open
* ci(folio): let the ios leg clear state for itself
* ci(folio): drop the stale frontboard note from the ios job
* docs(ci): record what the ios calibration assumes and where it was measured
* fix(ios): replace the session when a launch blows its bound
a launch the simulator refuses is never reported: xctest records it as a test
failure the runner cannot see, then holds the session's main thread for about
four minutes on a diagnostic chain. so the only signal is the expired bound,
and every later call queues behind the same wedge. restart the session once and
launch again, bounded so the launch path stays inside testrun's backstop.
* test(ios): cover the session replacement a wedged launch needs
* fix(ios): share one deadline across the restart and the second launch
the recovery a blown bound triggers now costs at most launchRecoveryTimeout
whatever it spends it on, so the launch path tops out at 150s and testrun's
three minute backstop stays a backstop.
* test(ios): the restart a blown launch triggers has to be bounded
* docs(ci): the ios leg does not convict on the runner, and a seed cannot fix it
seed 28 reproduced its walk on macos-15 and reached the bug at the step it
convicts at locally. it still could not be judged: the run did not return
home between step 19 and step 136, so the counting invariant saw a rise of
15 against a window of 37 submits.
* docs(sidecar): record why the stale ime flag stays out of reach
* test(folio): add commonTest source sets to core and shared
* fix(folio): reject amounts parseCents cannot represent
* fix(folio): cap a transaction at one million dollars
* test(spec): give the fake dom a real tree and a walking querySelectorAll
* style(sidecar): make ktlint clean, formatting only
ktlint -F over every kotlin file except DriverBackend.kt, then hand
fixes where the reflow read worse and for the long lines ktlint cannot
break. No behaviour changes.
DriverBackend.kt is left untouched to avoid a conflict with concurrent
work; its three over-long lines still fail fmt-kotlin.
* fix(spec): deepQueryAll returns matches in document order
* ci(folio): say what the android gate found, not why
The gate proves only that AddTransactionScreen is absent from the trace.
Claiming the run never got past login was an inference it cannot make: the
run that produced it had logged in and was stuck on the new account screen.
Name the routes the trace does record instead.
* test(runner): a relaunch must not convict the submit counting property
* test(browser): compare ax.find across both hosts on one page
* test(spec): name the shadow match in the grammar both hosts parse
* ci: move every action off the node20 runtime
checkout v4->v7, setup-go v5->v7, setup-node v4->v7, setup-java v4->v5,
upload-artifact v4->v7, cache v4->v6, upload-pages-artifact v3->v5,
deploy-pages v4->v5, setup-chrome v1->v2, setup-android v3->v4,
goreleaser-action v6->v7. setup-bun and android-emulator-runner are
already node24; buf-setup-action stays on its deliberate SHA pin.
setup-chrome v2 resolves stable from Chrome for Testing rather than the
official installer, so the ci.yml comment about the action's default no
longer held.
* feat(verifier): report a relaunch on state.lastAction
* test(verifier): pin the relaunch field on both hosts
* fix(runner): keep the action the app was relaunched after
* test: pin that a nested undefined does not survive the wire
* fix(folio): uninstall before installing in just ios
folio's signed-in session lives in the data container, which an install
over the top keeps, so a local run started right after just ios opened on
the previous run's Home screen and diverged at step 1. On CI's fresh
simulator the uninstall is a no-op, so the ios leg is unchanged.
* style(sidecar): bring the last three lines under the line limit
* fix(ios): the runner must not answer ok for a launch that failed
XCTest records a refused launch as a test issue that never throws, so the
companion returned ok for an app that never started. Check the state the
app actually reached and report the refusal instead.
* test(ios): a refusal the runner names costs no session restart
The session restart is for a launch that never answers. A launch that
reports the app's state has already said what a fresh session would.
* fix(folio): attribute a created account by its whole key, not a suffix
createdAccountHasNonZeroBalance matched the created card with endsWith, so
an older account whose name ends with the typed one ("Emergency Fund" for a
typed "Fund") was judged instead whenever the new card was clipped out of
the reading. Build both keys the card can carry, the plain name and web's
initials + name, and compare them whole.
* fix(hierarchy): object selectors resolve by the same rule as string ones
* test(verifier): both ax.find selector forms resolve the same element
* test(browser): the cross-host fixture uses the object selector form
* fix(replay-ui): wrap the tab strip so its last tabs stay clickable
* test(replay-ui): drive the fuzzer onto a violating step with a panel
* feat(folio): judge a submit against the account's own balance
The counting invariant can only close its window on Home, and the iOS run
in #78 went 117 steps between two Home readings: 37 submits against a rise
of 15 transactions is no evidence about the double tap sitting inside it.
The ledger and the add-transaction screen both show the account's own
balance, and an accepted submit pops back to the ledger, so a window
bounded by those readings holds one action.
The bound is an upper one: a balance that has not moved is a commit still
in flight, a rejected submit or a tap that never landed, and none of those
is a violation. Moving by more than the one submit in the window typed is.
* test(runner): an overlay dismissal must not convict the counting property
* docs(runner): point the guard comment at the renamed test
* docs(replay-ui): name the viewport the tab overflow was measured at
* feat(folio): close the submit window on the account's own screens
submitCommitsOneTransactionPerAction now states its rule over two windows:
the Home counts it already compared, and the account balance the ledger and
the add-transaction screen redraw on nearly every frame of the transaction
flow. Same rule, and the second window is usually one action wide.
* fix(sidecar): reach the adb server the environment names
buildDadb hardcoded localhost:5037, so a serial-addressed device always
resolved through this machine's adb server and ADB_SERVER_SOCKET was
ignored. Read the endpoint the way the adb CLI does instead.
Fixes#79
* test(sidecar): pin the adb server endpoint parsing
* fix(sidecar): close a keyboard standing in the snapshot
A tap on a text field raises the keyboard and nothing closed it, so the
tree the picker chooses from was missing every app node underneath it,
the submit control included. Close it before the read rather than after
the tap: the picker only ever sees snapshots, and the keyboard is still
on its way up when the tap returns.
Fixes#78
* test(sidecar): pin the tree-guarded keyboard dismissal
* chore(make): a target that runs folio's unit tests
* chore(folio): a just recipe for the unit tests
* ci: run folio's unit tests on every pr
* ci: switch to jdk 21 only for the folio step
* docs(sidecar): put the measured read cost in the dismissal bound
* fix(folio): decline the two demanding properties across a relaunch
The runner now keeps lastAction and marks it relaunched: true where it used
to report nothing at all, so the two properties that demand an effect judge
a step whose process may have died before the write landed.
submitChangesBalanceByTypedAmount and createdAccountHasNonZeroBalance both
decline there. The counting bound does not: a relaunch cannot manufacture a
transaction, and the submit is counted, so declining would throw away the
detection the runner fix restored.
* docs(folio): say why the merged card key cannot be made injective
Folio rejects a duplicate account name, so the twin the drop rule guards
against is two names the web key cannot tell apart, not two accounts
sharing a name. State what closing the rest would cost and what the tree
would have to carry to close it properly.
* test(folio): pin that two accounts can render the same card text
The proof behind the comment: "Travel1" holding 25 transactions and
"Travel12" holding 5 merge to the same string, so no identity key read off
a web card can tell them apart.
* fix(sidecar): bound the diagnostic adb reads
adbOutput and readLogcat read to EOF and then waited with no timeout, so
a wedged adb held the step for as long as it liked; one stall over a
remote adb server measured ~100s. The bound has to sit on the read, not
on waitFor: a wedged adb never reaches EOF, so a bounded waitFor after
the read is a line that never runs.
* test(sidecar): pin the bound on a wedged adb read
* fix(sidecar): an unreadable animation count is not idle
Defaulting the count to zero made a dumpsys that said nothing mean
nothing is animating, so a degraded link broke out of the settle early
and handed the runner a frame caught mid-animation. Unknown now waits,
inside the deadline waitForIdle already holds.
* test(sidecar): unknown animation state must not read as idle
* fix(folio): stop spending the submit budget on taps the app refused
The window is an upper bound on the transactions an interval could hold, and
a bound inflated by taps that commit nothing is a bound the app can never
exceed: #78 read a rise of 15 transactions against 37 submits. TxnSubmit is
clickable(enabled = amount.isNotBlank()) and parseCents refuses anything its
regex misses, so a tap whose landing frame shows a refused amount cannot have
committed. Over four recorded android runs that is 19, 11, 25 and 25 of 35,
26, 42 and 42 submit taps.
A relaunch is excepted: a fresh process draws an empty field whatever was
submitted.
* feat(folio): read the amount field into every submit window
Each of the three windows asks whether the tap could have committed, off the
field as the landing frame shows it.
* fix(sidecar): a foreground read that fails degrades the typing guard
An unreadable dumpsys passed a null owner to typeChunks, which switches
the mid-type focus guard off outright and lets the rest of the string
spray into whatever holds the foreground. Fall back to the launched
bundle instead: the guard stays armed, typing still happens, and the
degradation is said out loud rather than assumed away.
* test(sidecar): pin the degraded typing guard both ways
* test(runner): answer Snapshot and Hierarchy off one tree in the fakes
* feat(runner): skip a step whose tree changed between two reads
* test(runner): cover the reread's cost to the existing snapshot rules
* fix(ios): clear app state before the automation session attaches
New performs the clear-state reset, so the uninstall and reinstall no
longer land underneath a live XCTest session that is already bound to
the app. Launch refuses a clear-state request the driver was not built
for rather than reinstalling under its own session.
* fix(ios): the device path clears before its runner session too
* fix(testrun): thread clear-data into the ios drivers
* test(runner): a skipped step must not swallow the action before it
* fix(runner): hold the action back on a step nothing verified
* refactor(runner): drop the empty branch from the hold path
* docs(runner): describe both modes of the composing test driver
* fix(sidecar): erase a field by selecting it, not one delete per character
maestro's eraseText sends one delete per character through its
instrumentation, measured 29.6 ms/char on the API 34 emulator. The
4096-character string the corpus types cost ~121s to clear, a fifth of a
20 minute run spent on one step, and it recurred every time that field
was typed into again.
Select the content and delete the selection instead: two key events at
any length, measured 0.15s to 1.16s for 4096 characters across API 34,
35 and 36. The result is read back off the tree, and a field that is not
empty, or that the tree cannot report on, is finished off per character
in batches rather than assumed clear.
Fixes#80
* test(sidecar): pin the constant-cost erase and its residue check
* fix(sidecar): find the erased field by class, past the keyboard's own focus
The check that decides whether the select-all worked looked for an
"editable" attribute maestro's tree does not carry, so it answered
"cannot tell" every time and every erase paid the per-character
fallback. Worse, an open keyboard puts a second focused node in the
tree, one of the IME's own keys, carrying no text: taking the first
focused node would read a field still holding 4096 characters as empty,
which is the one answer that stops the erase early.
Match the text field by class instead. Measured against the real
backend, 4096 characters now clear in 385ms on API 34, 409ms on API 35
and 870ms on API 36, verified empty, where the fallback took ~4s.
* test(sidecar): use the tree the device really returns
* docs(ci): the android step number describes a local emulator, not ci
the leg disables animations and the number was measured with them on. the
first real dispatch carries 4 transitional steps over 200, so the cross-fade
wait does still fire in ci, just far less often.
* fix(android): say what the sdk lookup checked, not just to set ANDROID_HOME
* fix(doctor): resolve adb and emulator the way a run does
* docs(cli): the android doctor checks are not path-only
* fix(testrun): preflight resolves adb through the sdk, not just PATH
* docs(skills): add a spec review skill and the skills index
* fix(testrun): report a sidecar that dies at startup as the exit it was
* test(testrun): cover the sidecar shutdown path after an early exit
* docs(skills): add a property patterns catalogue skill
* fix(folio): bound the total-balance move instead of demanding it exactly
The write finishes before AddTransactionViewModel navigates, but nothing
establishes that Home's total has re-rendered before the frame is read, and
an equality convicts a healthy app for a total one frame behind. A delta of
zero is exactly the shape nine of the eleven measured android false
convictions had. 2x still exceeds x, so all four recorded convictions
survive, checked against the traces.
The trade is real: a balance that moves by LESS than the amount typed is no
longer judged anywhere in this spec.
* docs(folio): say what property 2 demands now that it is a bound
* docs(skills): add a spec authoring skill
covers hooks, extractors, selectors, properties, actions and the order to write them in, with a complete sample spec that typechecks against the real export surface.
* docs(skills): ground the property patterns catalogue in the merged specs
* docs(skills): name the selector keys that still substring match
* docs(skills): add a setup skill for adopting sanderling
* docs(skills): add a run triage skill
* docs(skills): point the setup skill at its siblings
* docs(manual): correct the flags the cli reference gets wrong
--launcher-activity does not exist in cmd/sanderling/main.go. --device,
--android-app-path and --arm do and were undocumented. runs.md still listed
--max-steps and --exit-on-violation as unshipped, and described --clear-data
as opt-in when the default is already true, contradicting itself ten lines on.
* test(folio): pin that a commit stays in the window until Home reads it
The interaction that keeps a stale Home card list from ever banking counts
the budget has already forgotten: a submit lands on the ledger, so the
reading that resets the window is a whole action later and the submit is
still in it. Characterization, not a regression: no code changed and it
cannot go red first.
* docs(folio): record why a banked card reading can be trusted as current
The freshness rule rests on the app popping one entry back to the ledger,
not on anything the frame carries, so the assumption and the measurements
behind it belong next to it.
* refactor(folio): name the balance property for the bound it asserts
it stopped being an equality and became |delta| <= typed, so the old name
demanded more than the property does. renamed with the ci gate's
GATED_PROPERTIES in the same commit so the gate never sees a name it does
not know.
* fix(android): a refused uninstall must not pass for clear-state
adb uninstall answers Failure [DELETE_FAILED_INTERNAL_ERROR] both when the package was never installed and when it refuses to remove one, so the failure text cannot say which happened and the old code installed over the top either way, keeping the data clear-state was asked to drop. Ask pm path instead, and fall back to pm clear when the app is still there.
* fix(ios): a failed simctl uninstall must fail the reinstall
simctl install over an installed app carries its data container across, so discarding the uninstall error reported a clear-state that never happened. Uninstalling an app that is not installed exits 0 on a booted simulator, so every failure here is a real one.
* fix(ios): a failed devicectl uninstall must fail the reinstall
same hole as the simulator path: devicectl install over an app keeps its data, and the discarded uninstall error hid it. Uninstalling a bundle id that is not installed exits 0 with 'App uninstalled.' on a paired iPhone, so a failure here is always real.
* docs(android): say why the uninstall text cannot be read
* test(android): name the uninstall failure for what it says, not why
* docs(ci): the ios leg convicts on the runner now, and why it did not before
* docs(ci): the cross-fade wait does not fire on ci, say so
* fix(runner): a bounded hold puts the swallow back one step later
the hold carries one action; letting the runner act again while the verifier
is still skipped overwrites it, so the carried action reaches no spec. hold
for as long as the verifier is skipped, and settle on a held step so the
reread pair is not tighter than the window the detector was measured over.
* test(runner): pin what the two reads are compared on
structuralShape excluding text and bounds is the decision separating this
feature from a run that verifies nothing, and only prose held it. adding
either field back now turns a case red.
* fix(ci): close shell injection into the npm publish job
A refname is attacker-controlled and git permits backtick, $, (, ; and |
in it. Three sites substituted it into a run: block, and NODE_AUTH_TOKEN
sat at job level, so a pushed tag ran arbitrary commands with the publish
credential in reach.
The tag now goes through env:, is validated against an anchored version
pattern before anything consumes it, and reaches the other jobs as a job
output. The token is scoped to the publish step. release-npm declares
contents: read instead of inheriting the repo default.
* fix(ios): recognise every shape a blown launch bound arrives in
The runner transport reports a blown budget two ways, its own comment says
so: the context's error once cancellation has landed, and the connection's
i/o timeout when the deadline armed from that context fires first. The
legacy transport reports it as a gRPC status. errors.Is against
context.DeadlineExceeded only matches the first, so the session restart
never fired for the other two and a wedged session stayed wedged.
* test(ios): drive the launch recovery with what the transports return
The wedged-session fake answered with ctx.Err() raw, which is the one
shape the guard already matched. The recovery now runs against the error
each transport really produces for the same expiry, taken from a runner
and a legacy companion that never answer.
* test(runner): pin both guard writes to what the spec reads
deleting lastAction.Relaunched or lastAction.Applied left the whole suite
green, so the only producer of the two fields every spec-side guard reads
had nothing holding it. both now assert the value out of the trace.
* fix(testrun): a run that judged nothing is not a green run
every step skipped means no property ever evaluated, so no violations is the
absence of a verdict rather than a clean one. the hold makes that reachable
now, so the run says it instead of exiting 0.
* fix(ios): stop the app before clearing its state
Launch terminated and then cleared; the clear moved to construction and
left nothing stopping the app first. The container wipe deletes files a
live app still holds open, and the CI ios leg passes no app path so the
wipe is the path it takes. simctl stops it, since the clear now runs
before any automation session exists. On a device the uninstall that is
its only clear takes the running app with it.
* test(ios): pin the stop that has to precede a clear
The ordering probe now records the stop, and a scripted xcrun holds what
reaches the tool: terminate before get_app_container, with the previous
run's files gone after. A simctl terminate that finds nothing to stop
still leaves the clear a success.
* docs(spec): an unbounded eventually is violated at run end
* docs(skills): an unreached eventually convicts at run end
* docs(skills): noUncaughtExceptions only fires on web
* fix(ios): a device clear-state that cannot happen must fail
--clear-data on a physical device with no --ios-app-path warned and then
ran anyway, so the run started on the previous run's data while the flag
said it started clean. There is no data-container wipe on a device, so
there is nothing to fall back to.
* test(ios): a device clear-state without an app path ends the run
* docs(skills): the stock properties each cover one platform
* docs(ci): the balance property demands a bound, not an equality
* fix(ios): the clear-state guard checks the bundle that was cleared
A bool only said that something was cleared, so Launch(ctx, otherBundle,
clearState=true) passed the guard and reported a reset that had reached a
different app. Record what was cleared and compare against the bundle
being launched.
* test(ios): a clear-state launch for an uncleared bundle is refused
* docs(manual): the flagship property is a bound, and say what that costs
* fix(ios): one address picker for every bring-up
bringUpRunner reads the picker from a field, and NewDevice only ever set
the device one, so a device driver that reached bringUpRunner would call
nil. The two fields held the same function; keeping one leaves no path
that can be wired without it.
* test(ios): a device driver can bring a runner up
* docs(skills): both shipped balance forms are bounds now
* docs(skills): name the balance predicate that still exists
* docs(skills): quote the doctor the binary actually prints
* docs(skills): screen= is the chrome driver's url, web only
* docs(skills): substring selector matching is native only
* docs(skills): web selectors are exact, native ones are substrings
* fix(ci): a run that wrote no trace is not evidence about folio
run_dir is empty when the run produced no output directory, and the
fallback made trace ./trace.jsonl. A stray trace in the working directory
was then read as this run's, so a run that wrote nothing reported 'found
the submit bug' and exited 0, defeating the missing-trace check below it.
* fix(ci): fail folio when a gated property is not in the spec
Nothing tied GATED_PROPERTIES to the spec it gates. Renaming a property
left the classifier matching nothing: ios and web blamed the spec for
finding a different bug, and android silently reclassified a real
conviction as 'judging health only' and stayed green.
replay-ui-summary.sh already makes this check for its own list. The spec
path becomes SPEC-overridable the same way, so the check is testable.
* test(ci): cover the folio classifier's verdicts
21 cases through a stubbed sanderling: every exit path, the drift check,
a missing trace, a zero-byte trace, an empty glob and a truncated line.
Asserts the flags that reached the binary, not just the exit code.
Invoked as bash -eo pipefail -c, which is what a run: block does. Running
folio-run.sh itself under -e would kill it at the first non-zero
sanderling test, which is the exit code it exists to read.
* docs(skills): defaultActions bundles five of the eight generators
* test(ios): name the picker test for what it covers
* docs(skills): three of the replay-ui properties are cross-panel
* docs(manual): state.exceptions is web only and reportError does not exist
* fix(folio): the bound carries no unconfirmed-submit guard
deleting confirmedApplied here broke 0 of 355 tests: under a bound a submit
that may not have landed moves the balance by 0, which the bound already
permits, so the guard could only ever drop the double commit it exists to
catch. the relaunch guard stays for a reason the bound does not cover, and
both tests now assert a verdict that changes when their guard does.
* docs(ci): three of the replay-ui properties are cross-panel
* docs(manual): the starter property only fires on web
* test(folio): judge the conjunct on the landings a real run produces
three of the 18 frames the recorded ios run drove it down, each with the
second commit the bound is there to catch. neutering the comparison reddens
it: a second commit on 357900 went unjudged.
* test(folio): the walk drives the composition the spec runs
countSubmitsInWindow never saw an amountText here, so every walk test counted
submits the app must have refused. with the field passed, a refused submit no
longer buys a later double tap an alibi: without it the window reads 3, not 1.
* docs(folio): say which double submit the conjunct can see, and which it cannot
the home landing is the counting invariant's, three of three in the recorded
ios run; this one gets the interleaving whose second pop is cancelled. it is
still the only judge on the 18 ledger landings that run produced.
* docs(folio): the narrow window is not where the detection comes from
the double taps land on home, so the counting form convicts them; what turned
0 convictions into 4 on the recorded ios run is submitCouldCommit, which drops
the windows at those three steps from 5/4/7 to 2/1/2.
* docs(skills): folio drives three platforms from one spec
* fix(folio): an amount over the app's cap spends no window budget
the corpus reaches TxnSubmit with 999999999999999999999, AMOUNT_REGEX takes it
and AddTransactionViewModel refuses it against MAX_TRANSACTION_AMOUNT_CENTS, so
counting it was budget a double submit could hide behind.
* docs(folio): say which form judged one step, not which node was read once
* docs: a bound still needs the relaunch guard, and eventually does convict
* fix(sidecar): the hierarchy rpc serves the tree the snapshot reads
the runner compares the two per step, but snapshot settles and closes a
keyboard while hierarchy was a bare contentDescriptor. measured on emulator
-5556 (api 34) with an ime open: 489 nodes against the snapshot's 134. both
now come off snapshotTree under the same lock; the reread still costs ~75ms
when no keyboard is up.
* docs(runner): say what makes the two reads comparable
the reread's comment claimed the round trip was the only interval between
them; what it left out is that the two rpcs have to read the same way, which
the repo's own android backend did not do.
* refactor(runner): name the settle predicate for what it means
* ci: add a headless-chrome composite action
The setup-chrome / apparmor sysctl / launch-check trio is copied across
three jobs. The old comment described setup-chrome v1 semantics: under v2
stable is the default and the alternative is Chrome for Testing latest,
not a dev Chromium, so it is restated for what the pin actually does.
* ci(examples): add the folio setup actions
folio-app holds the per-platform toolchain and app build, so a caller
guards one step instead of eight. folio-simulator boots the simulator,
installs folio and leaves the app stopped.
* ci(examples): add the replay-ui fixture action
Records a trace and serves it with sanderling replay. The step page URL
is a composite output rather than GITHUB_ENV, so it is scoped to the one
step that drives it.
* ci(examples): one dispatch workflow for every example
folio.yml and replay-ui.yml ran the same operation: build sanderling for
a platform, bring a target up, run a spec against it, classify the trace,
upload the run. They are now one matrix over four examples, each naming
its own runner.
The job is named for what it fuzzes. 'dogfood' named why we run it, not
what runs, the same error as a diagnostic that reports a motivation
instead of an observation.
The matrix is computed by a plan job because jobs.<id>.if cannot read the
matrix context, so a static matrix has no way to leave a leg out. Seeds,
budgets, timeouts, runners and artifact names are unchanged.
* ci: reuse the headless-chrome action in the browser job
Same three steps the examples workflow needs, and the comment explaining
the AppArmor sysctl now lives in one place.
* ci: move the folio jdk step to setup-java v5
The only setup-java left on v4; every other one moved.
* ci: pin third-party actions to commit shas
buf-setup-action was already pinned with a comment saying why; the other
five rode mutable major tags, so a tag move is an unreviewed change to
what runs. Each major currently resolves to the release named in the
comment, so this freezes today's behaviour rather than changing it.
actions/* stay on major tags: they are first-party to the runner.
* ci(replay-ui): name the run directory for what it fuzzes
runs/dogfood and the '### replay-ui dogfood' heading carried the same
naming error as the job name: dogfooding is why the run exists, not what
it fuzzes.
* docs(driver): state the log level scale on LogEntry
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* docs(sidecar): name the device the node counts came off
* fix(chrome): keep a log entry the level scale cannot rank
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* fix(chrome): record console levels on the logcat scale
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* docs(ci): say why upload-pages-artifact needs no include-hidden-files
v3 to v5 crossed v4's change to exclude dot-files. build/site has none,
so nothing was dropped, and the underscore directory is not hidden.
* test(browser): drive a console error through to the spec
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* docs(ioscompanion): name the vacuity behind the empty log slice
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci: run the folio classifier's test in make test-ci-scripts
* fix(chrome): keep the message of an object console argument
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* test(browser): cover console.error with an error object
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* feat(spec): let the runner install state.logs in the page
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* feat(verifier): encode state.logs for the web host
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* feat(chrome): install the step's logs in the page
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* test(ci): pin three real folio traces from run 31902501859
ios convicted on submitCommitsOneTransactionPerAction, web on both gated
properties, android ran its full 200 steps healthy. Every step is kept;
of each step only step, violations, witnesses and residuals survive.
hierarchy is replaced by the quoted "...Screen" resource ids it held, in
order. It cannot just be dropped: it is 95% of the bytes and also the
only place the android route gate's grep can match, so dropping it flips
that leg from healthy to 'never reached'. 8.4MB to 59KB.
* test(ci): drive the classifier over the real traces
Four cases on real data: each leg's real verdict, plus the android trace
cut before it reached the transaction screen, which is what proves the
route gate reads a real hierarchy dump.
Also corrects the hand-written fixtures. They set is_error to false on a
plain violation; internal/trace/writer.go tags that field omitempty, so a
real trace omits it entirely. Harmless to the classifier, but a fixture
that does not look like reality is the thing that hides drift.
* test(runner): teach the web fakes to take the step's logs
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* fix(runner): install the step's logs before the page extracts
On web every extractor reading is replaced by the one the page computed,
and the page answered logs: [], so noLogcatErrors counted an empty array
however full of errors the console was.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* test(runner): cover the logs reaching the page and failing to
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* test(spec): cover the host pushing state.logs into the page
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* test(browser): drive console.error through to a fired property
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* fix(runner): report a log fetch the driver could not make
The comment claimed the failure was warned about; nothing warned, so a
device whose log fetch failed every step held noLogcatErrors on evidence
nobody collected.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* test(runner): cover the silently dropped log fetch
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* fix(ci): read the route the spec reports, not the hierarchy dump
The android health gate grepped the trace for "AddTransactionScreen",
which occurs in exactly one place: the hierarchy dump, as a resource-id.
That is a debug artifact standing in for a fact the spec already reports,
and it was wrong in both directions. Against the real 8.4MB trace with
hierarchy stripped, the old gate failed a healthy 200-step run; against a
trace carrying the marker on a transition frame without the route ever
being reported, it passed and called it healthy.
It reads extractor_changes.route now, whose values come from SCREENS in
the spec, so the gate and the app agree on what being on a screen means.
routeOf answers null on a frame showing two screens, which is exactly the
frame the marker was matching.
The drift check grows to cover both new names: extract("route") and the
SCREENS key. The fixtures are re-derived keeping the route entry and no
hierarchy at all; the full artifacts and the fixtures give byte-identical
verdicts, which is what proves the coupling is gone.
Script and fixtures move together: either alone leaves the suite red.
* ci: check that the workflow references resolve
actionlint reads a local action's inputs but never checks its path
exists: uses: ./.github/actions/typo lints clean and fails only when the
job runs. Covers composite action paths, make targets including the ones
the examples matrix builds from $SANDERLING, and the scripts a run: step
invokes plus their executable bit.
Fails when it parses fewer references out of a file than that file
mentions, because a checker that matches nothing reports a safety it
never looked for.
* ci: lint the workflows on every pr
The workflows that fuzz the examples are dispatch-only, and GitHub will
not dispatch a workflow that is not on the default branch, so their first
real run is after merge. actionlint and the reference checker are the
only things that can fail before that.
actionlint is pinned by commit, and its tool version is pinned too so a
new release cannot change what CI enforces.
* ci: collapse the four workflows into one
Nine jobs written out one by one, each with its own steps and its own
calibrated seed and budget as literals. Triggers are pull requests, master
and v* tags, and a dispatch with no inputs.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci: inline the two composite actions with one caller each
Both existed to give the matrix a per-target hook. folio-app and
headless-chrome stay: three and three callers.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci: check that no run: block interpolates an expression
A ${{ }} lands in the script text before bash reads the line, and
actionlint only flags the contexts it already knows are attacker
controlled. Nothing enforced the rule the workflow follows. Also drops the
matrix table lookup, which has no table to read now.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci(folio): name the run, not the fuzzer, in the clean-run message
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* docs: point at the workflow that holds the release secrets now
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci: name every job Category (variant), and gate the lot on one check
Follows the convention in antithesishq/bombadil: the display name is what
groups a run in the Actions UI, so Check (tests), Check (browser),
Check (workflows), Folio (android), Folio (ios), Folio (web), Replay UI,
Release and Docs. Every job carries a name, so none of them falls back to
its kebab-case id.
All checks passed needs all nine and runs with if: always(), so branch
protection has one check to point at and a skipped job cannot read as a
pass. Release and docs now gate on startsWith(github.ref, 'refs/tags/v')
alongside master, which is the form the trigger filter already uses.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci: split the release job back in two
Collapsing them left the npm publish steps in a job holding contents:
write, because GoReleaser needs it, so npm ci ran its dependency lifecycle
scripts with a write-capable GITHUB_TOKEN in reach of the same job as a
live NPM_TOKEN. Release (npm) is back on contents: read and Release (cli)
keeps contents: write, which is what they each had before.
Each validates the tag from its own copy of the pattern rather than
waiting on a job that exists only to pass a string. Release (cli) is tags
only: there is no CLI to cut on a merge.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci: run folio on pull requests
folio was skipped on pull requests, so ios, android and web only ever ran
after a merge. The three legs are 3 to 19 minutes and run in parallel, and
a superseded pull request run already cancels itself.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
* ci: draw each group as its own box in the run graph
The run graph boxes jobs together when they share the same dependencies and
the same dependents. All ten jobs fed only all-checks-passed, so all ten drew
as one pile. A gate per group gives each group a dependent that is exactly
that group.
Release and docs now need the checks, which they should have all along: npm
publish and the pages deploy ran on a merge without waiting for the test job.
Folio stays unblocked so a 20 minute leg does not wait on a 3 minute one.
Claude-Session: https://claude.ai/code/session_01ShuAy8q8ZfPi8KHxwc8JpQ
An element carries find/findAll host functions, so json.Marshal refused the
whole value and the encoder answered nil. ChangedExtractors then emitted no
entry: no error, no warning, no value. Project the value the way the web host
already does (functions dropped, cycles and over-deep branches null, non-finite
numbers null) and turn whatever is still beyond JSON into an error the author
sees, rather than a missing extractor.
* ci(folio): run gradle on jdk 21 for the metro plugin
the metro gradle plugin folio builds with publishes org.gradle.jvm.version 21
and java 21 class files, so every leg failed at the folio build on a 17
runtime. local builds pass on jdk 25, which is why only ci saw it.
* fix(build): clean pkg/spec/dist, not the dead spec-api path
* chore: point stale spec-api comments at pkg/spec
* fix(spec): publish src so an installed package carries the runtime entries
* fix(testrun): alias the installed spec package so one module graph loads
* fix(spec): export Direction, ScrollAction and LongPressAction from the entry
* docs(spec): cut the package readme to a description and doc links
* docs: say how the cli and spec package versions relate
* fix(verifier): report whether the last action was confirmed applied
Both hosts get applied: true when the runner saw the dispatch succeed and
applied: null when it could not, so an unconfirmed action stops arriving at
the spec as no action at all.
* fix(runner): an apply error leaves the action's fate unknown, not undone
A deadline that fires after the tap was dispatched leaves the effect
committed. Reporting nil made the spec see an effect with no action to cause
it, which is how the counting property convicts a healthy app.
* fix(release): stage the sidecar jar at the renamed embed path
* test(replay-ui): trace fixtures for the vacuity counts
one real green run, one run that rendered nothing, one that judges every property at least once.
* ci(replay-ui): count the steps each property judged
the exit code says no property returned false; it does not say any property was ever evaluated. this reads the trace and reports judged vs declined per property, and fails when the step page never rendered.
* test(replay-ui): cover the summary script from make test
* ci(replay-ui): summarise through the vacuity script
* docs(ci): explain the replay-ui judged/declined counts
* fix(verifier): encode element-valued extractors into the trace
An ax element exports with its find/findAll host functions attached, and
json.Marshal refuses the whole value over them: json: unsupported type:
func(goja.FunctionCall) goja.Value. The encoding failed, curr stayed nil,
and the goja hosts (ios, android) recorded null for every element-valued
extractor in both the per-step diff and the violation witness.
Apply the web host's sanitize rule before marshaling, so one rule encodes
an element on both hosts.
* test(verifier): pin element encoding to one rule on both hosts
* test(runner): assert an element reaches trace.jsonl and its witness
* feat(spec): give state.lastAction an applied field
Three states, not two: no action is a null lastAction, applied: true is an
action the runner confirmed, applied: null is one it dispatched and never
learned the fate of.
* fix(folio): do not attribute an effect to an unconfirmed action
submitChangesBalanceByTypedAmount and createdAccountHasNonZeroBalance both
convict by pinning an effect on the last action, so both decline unless the
runner saw it applied. The fixtures now say which fate they mean.
* test(folio): an unconfirmed submit belongs in the window
The count is an upper bound on the submits a window holds, so the tap that may
have landed counts and committedTransactionsExceedSubmits has nothing to
convict on.
* test(runner): a tap that lands under a failed apply is not a double submit
Drives the real folio counting predicates through the runner against a device
that commits the tap and then times out. The double-submit case is the control:
without it a green proves only that the property never fired.
* test(verifier): pin the three lastAction states on both hosts
The web page is handed the same applied field the goja object exposes, so a
property cannot read one thing on native and another on web.
* docs(spec-language): document the three lastAction states
Attribute values match by substring, so a selector that named one element
where the candidate was built can name several in the tree it resolves
against, and the lookup sent every one of them to the first match. The host
gates blank an ambiguous tag at enumeration time; this closes the gap between
that moment and the action.
A bare-string target carries no coordinates, so the first match stays the
answer there rather than dropping an authored action.
Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
Drives 40 real draws from a spec that taps each card, through the picker, the
serializer and DecodeAction, and asserts on the points the driver saw. Against
the shared-selector bug all 40 landed on the first card.
Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
ax.findAll stamped every result with the query selector, and resolveCoordinates
prefers the tree lookup over the element's own coordinates, so N sibling
candidates all executed on the first match. On folio's Home screen the fuzzer
could never open any account but the first.
The gate tests identity rather than cardinality: no node other than this one
answers to the rendered string, checked with the same lookup the runner runs.
A rendered object selector can resolve somewhere the query never matched, so
counting the query would call that unique.
Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
The V8 host names a web target by data-testid and TapSelector translates that
selector into a CSS attribute match, but the dump carried no such attribute
and no alias could supply one, since an alias only redirects to a key that
already holds the value. tree.Find was therefore always nil for exactly the
selectors examples/folio-web tags with.
Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
otherElementHoldsFocus answered true when FindNode returned nothing, so an
unresolvable target read as "another element holds focus". confirmFocus then
re-dumped, resolved nothing again, and errored unconditionally. Three of those
in a row abort the run.
Not knowing where the target is says nothing about where the text would land.
The guard's real case, a resolved target with focus outside its subtree, still
errors exactly as before.
Claude-Session: https://claude.ai/code/session_01A5KmftdEJ49A9z5mF5ESrX
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