Commit Graph

9 Commits

Author SHA1 Message Date
Michał Pierzchała f065e6aeb4 fix(maestro): align label metadata ownership (#1909)
* fix(maestro): align label metadata ownership

* fix(maestro): centralize command label parsing

* test(maestro): cover runFlow label ownership
2026-08-20 18:21:56 +02:00
Michał Pierzchała d072819632 refactor: reuse kernel uniqueStrings instead of local copies (#1892)
Three modules hand-rolled local uniqueStrings helpers despite the
AGENTS.md reuse rule and the canonical export in
@agent-device/kernel/collections:

- src/platforms/apple/core/perf-frame.ts (identical semantics)
- src/platforms/web/agent-browser-lifecycle.ts (empty-string filter now
  composed at the one call site that receives caller input; the home
  marker call site passes path.join results that are never empty)
- packages/selectors/src/internal/build.ts (identical semantics)

All three files' packages already depend on @agent-device/kernel and
siblings import the same subpath.
2026-08-20 12:52:18 +02:00
Michał Pierzchała 74eab2a554 refactor: route selector-resolution structural stages into typed policy (#1744)
* refactor: route selector structural stages into typed policy

#1649 landed the per-caller ambiguity matrix and deliberately left four
structural columns out: occlusion, off-screen, hittable-ancestor promotion,
and the poll budget were per-caller pipeline code, so declaring them would
have been an unverifiable claim (nothing consumed them; flipping one left the
suite green).

This adds the missing half as a table with runners. `SELECTOR_PIPELINE_POLICIES`
(src/core/selector-pipeline-policy.ts) gives each caller ONE row naming its
ambiguity contract plus its four stages, and every stage is reached only
through a runner that reads the row:

- occlusion -> selectorPipelineCandidates (candidacy) and
  resolveSelectorPipelineTarget (refusal). Acting rows exclude covered nodes
  and refuse covered targets; `find` and the diagnosis probe keep them as
  candidates and refuse at the target; reads and `wait` ignore them.
- promotion -> resolveSelectorPipelineTarget. The per-call-site
  `promoteToHittableAncestor: boolean` is gone: click/press/longpress name
  `promotedTarget`, fill/focus/scroll/drag endpoints and the native-ref
  preflight name `resolvedTarget`. `find`'s below-the-root variant is a
  declared value rather than a second local helper.
- off-screen -> throwIfOffscreenInteractionTarget, which now takes the row and
  returns the node untouched (no iOS rescue round trip) for observation rows.
- poll -> selectorPollBudget, which createWaitPolling derives its deadline and
  inter-poll delay from; the two wait loops carry a budget, every other row
  carries none and cannot be polled.

Behavior is byte-identical. The acting refusal keeps its exact node, label and
details in every branch (promotion declines to retarget away from a covered
node, so the "both covered" case names the same node it always did), and
`find` carries the occlusion verdict to the focus/type seam rather than
raising it early, because find click/fill still delegate that refusal to the
interaction leaf's own error shape.

selector-pipeline-policy.test.ts drives EVERY row through EVERY runner,
including the rows whose answer is "skip" — the half that used to be an
absence of code, and an absence cannot fail. Each stage was proven red by
flipping its cell (occlusion, promotion, off-screen, poll, plus the
declare-only-what-is-enforced guard). The ADR 0011 occlusion/nonHittable
`via` pointers for the runtime tree paths now name the runner that makes the
decision, not the predicate it applies.

Closes #1656; prework for #1739 (waves 4-5).

* docs: state constraints instead of narrating the refactor

Comment pass over #1656: drop the "used to be per-caller code" /
"not module constants" / "rather than an omission" narration — a comment
should say what a future edit must respect, not what the previous shape was —
and compress the find occlusion-verdict and poll-budget notes to the
constraint they actually carry.

* refactor: make the selector pipeline the only door to the engine

Review of #1744: the structural rows were declared but bypassable. Read and
wait routes composed `selectorPipelineCandidates(row, nodes)` with the raw
`resolveSelectorChainWithPolicy(..., row.resolution)` and never entered the
promotion or off-screen stages, so flipping a read row's `promotion` or
`offscreen` changed only the policy unit tests — production `get`/`is`/`wait`
were unaffected, which is the unverifiable-column failure #1656 exists to
remove. Callers could also pair one row's candidate set with another row's
ambiguity contract, and `find list` reached the engine directly.

The owning interface (src/core/selector-pipeline.ts) now runs every stage a row
declares, skips included, and the stage functions are private to it:

- `resolveSelectorPipeline` — single-target rows: candidacy, ambiguity, the
  replay-guard hook, promotion, occlusion, off-screen.
- `listSelectorPipelineMatches` — `reject-candidates` rows, returning the
  candidate set AND the tree the row sees, so ranking and equivalence
  classification judge the same nodes candidacy produced.
- `runNodePipelineStages` — the node stages for a target from a non-chain
  matcher (`@ref`, find's fuzzy locator) or a narrowed candidate set.

A row whose off-screen stage refuses must supply a refusal shape, so flipping
an observation row to `refuse` fails on its real route instead of silently
observing. `find list` now names a `readList` row (the new
`reject-candidates`/no-rect ambiguity row) instead of calling the engine.

R17 selector-pipeline-ownership (scripts/layering/) makes the bypass
structurally inexpressible: only the owner may import the engine entry points.
Proven against a planted import in selector-read.ts, which the repo-wide scan
rejects with the entry points that replace it.

Flips now fail through REAL command routes, verified one at a time:
readUnique.occlusion/offscreen/promotion and wait.occlusion via get attrs / is
/ wait; readAny.offscreen via is exists and find; readList.occlusion via find
list; promotedTarget.promotion via runtime click. The wait route test needed an
advancing clock first — with the frozen one a refused wait spun instead of
failing, so the flip hung rather than asserting.

* refactor: drop find's dead candidate binding

The selector branch bound the row's candidate set and never read it: only the
acting classification needs that tree, and find's locator branch brings its own
matcher. Names what actually governs the locator target — the shared node
stages below, not a candidate set it never had.

* refactor: reserve the selector engine behind the pipeline owner

Review of #1744 (three blockers).

**Listing rows no longer claim stages they cannot run.** `find <q> list`
resolves to a candidate SET, so promotion, the off-screen guard and a poll
budget have nothing to apply to — a listing has no single element to retarget,
keep on screen, or wait for. `readList` now declares only the two stages a
listing executes (`SelectorListPolicy`: resolution + occlusion), and the
narrower shape is load-bearing: `runNodePipelineStages` and `selectorPollBudget`
take the full row, so handing them a listing row is a compile error rather than
a silently skipped stage. Pinned with `@ts-expect-error` — widening `readList`
makes the directives unused and fails the typecheck.

**The engine door is a specifier, not a symbol.** R17's regex could not see a
namespace import, a re-export, or a deferred `import()`, none of which mention
the symbol it matched. The two engine entries moved to
`@agent-device/selectors/engine`, and R19 enforces over the resolved import
graph, where every one of those forms is the same edge. Proven on the
repo-wide scan by planting each form into a shipped route: namespace import,
dynamic import, and `export *` laundering all come back red.

`resolveImportEdges` drops an edge whose specifier resolves to nothing, so a
specifier rule goes quiet — not red — if the subpath is ever retired. The gate
now says that out loud instead of scanning clean.

**R19, not R17.** #1750 allocates R17/R18. Verified free against origin/main
and that PR's diff, then validated by real merges in both directions: the
uniqueness gate passes either way and the three ids stay distinct.

The gate itself is new (`scripts/layering/rule-ids.ts`): two branches taking one
free number do not conflict in git, so nothing caught R17 twice. Matching whole
string literals is what separates a declaration from prose that names a rule,
and it is what let the gate see #1750's `const RULE = '…'` shape — the first
version missed it and would have been vacuous. `main`'s two pre-existing
collisions (R11, R13) are listed as known, not pinned by equality, so #1750
lands in either order without breaking this.

Also: the root façade now exposes no resolver at all, and its surface test
pins both doors.

* fix(layering): make each rule-id allowance expire with its collision

Review of #1744: `KNOWN_RULE_ID_COLLISIONS` filtered the exact R11/R13
collision strings, so once #1750 renames those rules apart the entries would
keep waving those very collisions through if anyone reintroduced them. "Inert"
was wrong — a stale allowance fails open, permanently.

`ruleIdCollisionFailures` now checks the transition from both sides: a
collision nobody allowed fails, AND an allowance whose collision is absent
from the scan fails as a stale allowance. The entry therefore has to be deleted
in the same change that removes the collision, and the list burns down to
empty, which admits nothing.

#1750 is still open, so the transitional entries stay for now (option (b)).
Verified against a scratch tree carrying that PR's rename: leaving the list
untouched reports both entries as stale; deleting them is clean; and
reintroducing `R11 names contracts-implementation-authority and
package-boundaries` afterwards is rejected. The last of those is also a unit
regression, so the post-transition guarantee is pinned rather than argued.
2026-08-12 07:57:08 +02:00
Michał Pierzchała 338aa2a0d5 refactor: route every native selector resolution through the policy interface (#1715)
* refactor: route every native selector resolution through the policy interface

#1649 declared the per-caller ambiguity matrix; four native call sites still
bypassed it, spreading `selectorResolutionKnobs(row)` into a raw
`resolveSelectorChain` instead of naming the row. That left the "one
interface" claim aspirational: a caller could restate its contract as engine
knobs and nothing would notice.

- `is` non-exists, `get text`/`get attrs`, find's read actions, and the
  covered-selector diagnosis probe now call `resolveSelectorChainWithPolicy`
  with their existing row. Semantics are byte-identical: the knob-backed
  branch of that interface forwards to the same engine call the call sites
  built by hand.
- The façade drops `resolveSelectorChain` and `selectorResolutionKnobs`, so
  no knob-taking resolver is reachable from outside the package and a call
  site cannot re-acquire the knobs even by accident.
  `requireUnique`/`disambiguateAmbiguous` are now named in exactly one
  function, which `resolve-with-policy.ts` and the replay resolver both
  derive through.
- `get` names the two rows it may consume as a type, so pointing it at any
  other ambiguity contract is a compile error.

Tests: selector-read-policy.test.ts pins which row each read command
consumes, end to end, on one ambiguous fixture — the only tree the rows
disagree on. Each assertion was proven red by re-pointing its caller at a
neighbouring row. The knob-consistency check moves into the package beside
the now-private helper. Test call sites that used the raw resolver move to
`resolveRecordedTarget`, the same knobs and the path that actually replays a
recorded chain.

Extracting the failure branch drops `resolveSelectorInteractionTarget` below
the complexity threshold; its `fallow-ignore` waiver is removed (verified
load-bearing before the extraction, unnecessary after).

Closes #1630. Structural stages (occlusion, off-screen, promotion, poll
budget) stay per-caller pipeline code, tracked in #1656.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HuKzQWn6WQcMYaAZVvJzdD

* test: observe which node find's row selected, not just that one existed

#1715 review, P2: the find row assertion was only half a pin. `find exists`
returns `found: true` for any resolved node, and the `list` call it leaned on
goes through listFindMatches — a path that consumes no policy row at all. So
repointing findFirstLocatorMatch at `readText` left both assertions green
while selection silently moved from the document-order head to the tiebreak
winner.

Assert through `find get_attrs`, which returns the ref of the node the row
actually selected. Both neighbouring rows are now red: `readText` fails
'@e3' !== '@e2' (the move the old test missed), `readUnique` fails by
refusing the ambiguous screen. `exists` stays as a second, weaker assertion
on the same resolution.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HuKzQWn6WQcMYaAZVvJzdD

* refactor: route is exists through the matrix, collapse the double match pass

Follow-up tightening on the same seam.

`is exists` reached findSelectorChainMatch directly while the `readAny` row's
own doc claimed to serve "`exists` and find's read-only actions" — true of the
docs, not of the code, which is the unverifiable-claim shape #1656's review
called out. It now names `readAny`, the row it always described. Equivalent by
construction: both take the first alternative with any match under
requireRect: false, and disclose that alternative's count.

That leaves the root façade with no consumer for findSelectorChainMatch, so it
goes the way of resolveSelectorChain — dropped from the string-only façade,
kept on the published ./ast surface. Its façade-twin type SelectorChainMatch
dies with it (fallow caught it).

resolveSelectorChainWithPolicy matched twice on the uniqueness path: once via
resolveSelectorChain, then again to fill matchedNodes. Hoisting the single
list call above the row switch removes that second pass, collapses two
duplicated ambiguous literals into one helper, and drops a `?? [resolution.node]`
fallback that was unreachable — a resolution implies its alternative matched,
so the list is never null there.

While hoisting: the resolved arm's matchedNodes can describe a different
alternative than resolution.selector, because uniqueness skips an ambiguous
alternative to try the next one. Unreachable today (only first-match callers
read it, where both come from one list), and left as-is rather than silently
changed — but the doc claimed "the alternative it came from", so it now says
what is actually true.

Tests: is exists gets a caller-level pin on the shared ambiguous fixture —
passes with matches: 2 where its fail-closed siblings refuse — proven red by
pointing it at readUnique.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HuKzQWn6WQcMYaAZVvJzdD

* test: discriminate is exists's row by alternative, guard the façade structurally

#1715 review, second regression-validity gap. The `is exists` pin observed
only `pass: true` and `matches: 2` on a fixture whose first alternative was
merely TIEBREAKABLE — so disambiguation succeeded there and reported the same
count first-match would. `readAny`, `readText`, and the pre-migration raw
lookup all produced that, and only the readUnique swap I had checked went
red. One mutation proven is not the same as the row being pinned.

`exists` exposes no node ref, so the row has to be read off WHICH alternative
answered. New fixture: alternative one matches two nodes that are genuinely
indistinguishable (same depth, same area, both on screen) so the tiebreak
declines; alternative two matches exactly one. First-match answers from
alternative one; every uniqueness row skips the undecidable alternative and
answers from alternative two. Asserting the selector now separates them —
readText and readUnique both fail with `id="save-unique"` where
`label="Save"` is expected.

Restoring the raw lookup stays behaviourally invisible, though:
findSelectorChainMatch is equivalent to the readAny row it migrated to, which
is precisely why that migration preserved semantics. No fixture assertion can
catch that revert, so the guard is structural — the façade's export list must
not carry resolveSelectorChain, findSelectorChainMatch, or
selectorResolutionKnobs. Follows the packages/maestro index.test.ts
absence-assertion precedent. Verified red by re-exporting the lookup.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HuKzQWn6WQcMYaAZVvJzdD

* fix: cover selector routes in device replays

* test: simplify selector replay regression

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-08-11 07:34:11 +02:00
Michał Pierzchała 6c0fcb64a1 fix: reject distinct ambiguous mutation targets (#1667)
* fix: reject distinct ambiguous mutation targets

* fix(ios): scope the raw-match rejection to mutating dispatches

`RunnerTests+Interaction.findElement` applied the new fail-closed
classification to `querySelector` as well as press/type, because the read
call site takes the default `allowNonHittableFallback: false`. With one
visible/hittable match and one non-hittable same-selector duplicate the
query started returning AMBIGUOUS_MATCH where it previously selected the
hittable element, and `queryDirectIosSelectorOrFallback` preserves that
error for read callers — so `get`, `is`, and `wait` surfaced an error
instead of their prior answer.

`classifyDirectSelectorCandidates` now takes a `rawMatchPolicy`. Mutations
keep `.rejectDistinctMatches` (the default, so no mutation call site
changes); `queryElement` passes `.preferHittableMatch`, restoring the
prior read rule: prefer the single hittable match, ambiguous only when
hittable matches compete, and never adopt the Maestro coordinate fallback.
The Maestro expected-point path is untouched.

Covers the one-hittable + one-non-hittable read, competing hittable reads,
and the non-hittable-only read. ADR 0011's amendment now states the scope.

* test(ios): execute selector read ambiguity regression

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-08-08 08:57:32 +02:00
Michał Pierzchała 10ff339d14 refactor: declare selector resolution policy as data (#1649)
* refactor: declare selector resolution policy as data (#1630)

Five native consumers of "resolve a selector against the screen" each
hand-declared their ambiguity contract as inline requireUnique/
disambiguateAmbiguous literals, so the repo's real policy matrix was only
discoverable by reading four files. SELECTOR_RESOLUTION_POLICIES
(packages/selectors) now declares one row per caller — ambiguity kind plus
the structural columns (rect, occlusion, off-screen guard, promotion, poll)
— and selectorResolutionKnobs turns a row into the engine knobs it stands
for. Callers consume rows; zero ambiguity literals remain in src.

Semantics are unchanged by construction: each row was read off its call
site. The matrix names what was previously implicit — act and get text
disambiguate, is/get attrs fail closed, exists/find-reads and wait take the
first match, mutating find rejects candidates unless narrowed (#1625).
`reject-candidates` is declaration-only and rejected by
selectorResolutionKnobs at the type level, because find enforces it through
its own narrowing rather than engine knobs.

resolution-policy-parity.test.ts gate-tests the matrix against the callers
(ADR 0011's declared-plus-gate-tested pattern): knobs must match the named
ambiguity contract, every claimed structural column must appear in the
caller's source, the read/wait pipelines must genuinely lack the machinery
they disclaim, and no caller may reintroduce an inline literal. Verified
revert-sensitive: flipping readUnique to disambiguate and faking wait's
occlusion column each fail it.

Out of scope, unchanged, per the issue: the Maestro engine (ADR 0015) and
the open click-implicit-wait product decision.

* refactor: route wait and mutating find through the policy interface (#1649 review)

P1 was right: the first head declared seven rows but genuinely routed five.
selector-wait.ts never imported its row (it called listSelectorChainMatches
directly), findAct consumed only requireRect while its ambiguity contract
stayed bespoke, and the parity test sniffed marker strings in source files —
so it stayed green across exactly that gap. Asserting about the layer I had
edited instead of the behavior it produces.

resolveSelectorChainWithPolicy is now the one policy-driven entry: it
returns a discriminated outcome (none / resolved / ambiguous) because the
rows genuinely disagree about what several matches mean, which is what
previously forced each caller to re-derive its contract inline. wait and
find's selector branch both route through it; find additionally asserts its
row still says reject-candidates rather than assuming.

The parity test is rebuilt on fixture trees driven through that interface —
no source sniffing. Wiring verified revert-sensitive: flipping the wait row
fails the policy tests, and flipping findAct fails REAL find handler tests
(ambiguous-candidate listing), which is the proof the previous version
could not produce.

One behavior nuance the fixture work surfaced and now pins: disambiguation
declines on genuinely indistinguishable candidates (the tiebreak is
evidence, not a coin flip), so an acting row surfaces ambiguity there rather
than binding one silently.

* fix(test): let fallow see the host-process mock helper's real consumers

Rebase onto main brought #1642's host-process-mock.ts into this PR's
fallow scope, where its export reports as unused. It is not: three suites
consume it, but only through `(await import(...)).pinOwnProcessStartTime`
inside vi.mock factories — vitest hoists those above static imports, so the
dynamic form is required and fallow cannot trace it statically. Documented
suppression rather than a restructure that would break the hoisting
contract.

Latent on main rather than introduced here: the audit gate is
changed-files-only, so main sees the file in scope only from a PR whose
diff contains it.

* fix: keep every candidate when a policy resolves one winner (#1649 review P1)

A real regression I introduced, not a test gap: routing wait through the
policy interface collapsed the candidate set to the winner, and the #1349
landmark check is satisfied when SOME match carries the recorded identity.
A first same-selector impostor therefore hid a later genuine landmark and
timed the wait out.

The resolved outcome now carries `matchedNodes` — the full candidate set of
the alternative the winner came from — so a policy that picks one node no
longer throws the rest away. wait passes that straight to the landmark
check, restoring the original semantics.

Regression test added at the within-one-poll shape the existing suite did
not cover (both candidates in the SAME capture, impostor first); verified
it goes red against the singleton reconstruction it replaces.

* refactor: declare only the policy fields the matrix enforces (#1649 review)

The occlusion / offscreenGuard / promotion / poll columns were never
consumed by resolveSelectorChainWithPolicy or selectorResolutionKnobs:
changing any of them left behavior and the suite green, so they were
unverifiable claims that read as truth. (My earlier source-sniffing test
"verified" them by grepping caller files for marker strings — which is why
it also stayed green when a row was disconnected entirely.)

The matrix now declares exactly what it enforces: the ambiguity contract and
the rect requirement, both consumed by the resolution interface and pinned
behaviorally. A new test asserts every row's field set, so an unenforceable
column cannot reappear without coverage — verified by re-adding one and
watching it fail. Routing the structural stages into typed behavior is
tracked in #1656 with the constraint that each field must be consumed, not
merely declared.

* fix(selectors): flatten the policy outcome at the package boundary

`PolicyResolutionOutcome.resolution` was typed as `AstSelectorResolution` and
the root façade returned it unchanged, so the parser AST #1589 confined to
`@agent-device/selectors/ast` came back through a nested field.
`selector-wait.ts` reading `outcome.resolution.selector.raw` was the runtime
proof. The existing boundary gate reads exported *names*, so it could not see
this.

The public outcome now lives beside `SelectorResolution` in
public-resolution-types.ts with its selector as text; the parser-side shape is
renamed `AstPolicyResolutionOutcome` and stays package-private, and the façade
wrapper flattens on the way out — the same treatment `resolveSelectorChain`
already gave `AstSelectorResolution`.

Two new pins, both verified red against the shape they replace: a behavioral
one asserting the façade returns selector text under every policy row, and a
structural one asserting resolution shapes are re-exported from
public-resolution-types.ts rather than from a parser-side module — which is
what distinguishes the leak from a correct re-export in a name list.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017Rva4YGtSCAKJqH5PbpcCU

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-08-06 21:10:30 +02:00
Michał Pierzchała 870d12c406 fix: honest find contract — press/tap aliases, read-only list action, selector uniqueness (#1637)
* fix: honest find contract — press/tap aliases, read-only list, selector uniqueness (#1625)

Three defects in find's contract, fixed together because they are one
vocabulary:

press/tap are the same action as click everywhere else in this CLI, yet
find rejected them — agents using the vocabulary the tool itself
established burned a tool call per attempt (four in one bench run).
Both parsers now normalize press/tap to click; longpress/swipe stay
real exclusions.

The #1602 recovery hint told agents to run bare find to 'list matches',
but bare find CLICKS a unique match — inspection guidance pointing at a
mutation (the #1625 report: 'find Dictionary' navigated into
Dictionary). find <q> list is the read-only surface that guidance
needed: every match with its @ref, unique match included, never a tap.
Captured UNSCOPED (the label-scope optimization narrows to the first
match, exactly wrong for listing), published as an ADR 0014 partial
frame authorizing every listed ref.

Selector-shaped queries skipped the ambiguity check and took the first
match silently — the mis-binding path the AMBIGUOUS_MATCH recovery
advice itself pointed agents at, while --first/--last were documented
as explicit opt-ins. Selector and text queries now share one contract:
multiple matches reject with the #1597 candidates listing unless
--first/--last narrows explicitly.

The hint is rewritten around the new contract; docs and the MCP find
output schema follow. Regressions at every layer: both parsers (alias,
list token, unsupported-action hint shape), the daemon handler
(selector ambiguity with candidates, --first opt-out, list returns all
matches with zero action dispatches, unique-match list does not tap).

* refactor: single-home the find read result and flatten parseFindArgs (fallow)

The daemon's DaemonFindResult had drifted into an identical structural
twin of the engine's FindReadCommandResult — the two grew the list
variant in parallel and crossed the clone threshold. The shape now
lives in contracts as FindReadResult (below both zones, per R2's own
remedy) with the engine and daemon both aliasing it.

parseFindArgs collapses the four bare single-token actions into one
membership check and extracts the get sub-action parser, bringing it
back under the complexity threshold instead of waiving it.

* style: merge duplicate contracts import (lint)

* fix: accept list on the MCP input surface and pin every listed ref (review)

- FIND_ACTION_VALUES gains 'list' so field-metadata/MCP input no longer
  rejects the action the CLI parser accepts
- FindCommandResponseData types 'matches' (public client response)
- MCP mergeFindRefPins learns every matches[] ref, so a plain @eN press
  after find-list forwards pinned and the partial frame admits it
- CLI/MCP text renders every listed match as its own pinned line via the
  snapshot-line role/label normalizers
- regressions: daemon partial-frame scope, pin store, CLI output, MCP
  schema + find-list->press chain, typed client list response
2026-08-06 15:11:12 +02:00
Michał Pierzchała 8ba5f9b8de fix: surface AMBIGUOUS_MATCH candidates and name find's supported actions (#1602)
* fix: surface AMBIGUOUS_MATCH candidates and name find's supported actions (#1597)

AMBIGUOUS_MATCH errors now list the matching candidates (ref, role,
label/identifier) rendered the same way as snapshot -i lines, capped at
5 with a "+N more" marker. buildAmbiguousMatchError (the single
producer, src/daemon/handlers/find.ts) reuses formatSnapshotLine to
build the list; formatAmbiguousMatchCandidateLines (src/utils/output.ts)
renders it unconditionally on both text surfaces an agent actually
reads (CLI printHumanError and MCP formatToolErrorText) — previously
the candidates lived only in details, which neither surface printed.

find's "Unsupported find action: X" (e.g. from `find <text> press`)
now attaches a hint naming every action find actually supports and the
two-step recovery shape: run find "<text>" to resolve the ref, then
dispatch the gesture as its own command (press @eNN). The hint is a
single exported constant (UNSUPPORTED_FIND_ACTION_HINT) shared by both
throw sites — packages/selectors' raw-token parser and the CLI's typed
reader (src/commands/interaction/selectors.ts) — so they can't drift.

Matching semantics are unchanged; ambiguous rejection stays by-design.
The help-conformance corpus's AMBIGUOUS_MATCH quiz is updated: its
premise ("candidate refs were not shown") no longer holds, but with 3
identically-labeled candidates the lesson (don't guess a specific ref)
still holds.

* fix: guard the AMBIGUOUS_MATCH candidate renderer against device-domain shapes

Review on #1602 (P2): formatAmbiguousMatchCandidateLines ran for every
normalized error and stringified details.candidates unconditionally,
but device-domain AMBIGUOUS_MATCH/APP_NOT_INSTALLED errors
(findBootedAppleSimulatorWithApp, src/core/dispatch-resolve.ts) reuse
that key for { id, name } device objects with no `matches` field —
CLI and MCP would have printed "Candidates: [object Object]" for
those. The renderer now requires numeric details.matches AND every
candidate to be a string before rendering anything, restricting it to
buildAmbiguousMatchError's element-match shape; unrecognized shapes
render nothing, same as before this feature existed. Added regression
tests against the exact device-error shape on both text surfaces.

Also unexports AMBIGUOUS_MATCH_CANDIDATE_LIMIT (fallow flagged it as
an unused production export) — it has no consumer outside find.ts.
2026-08-04 21:10:05 +02:00
Michał Pierzchała 4f8dc3f31e refactor: move selector engine into workspace package (#1589)
* refactor: move selector engine into workspace package

* refactor(selectors): trim the package façade to its real consumers

Follow-up to the selector-package cutover, from a structural review of it.

- Drop 15 façade symbols with no consumer anywhere in the repo:
  selectorUsesKey (added by the cutover, never called), isNodeVisible /
  isNodeEditable (the real helpers are contracts/snapshot's), normalizeText,
  splitIsSelectorArgs, IS_PREDICATE_REQUIRED_MESSAGE, four nested Replay
  types, SelectorDisambiguationDisclosure, and the four kernel type
  re-exports every consumer already imports from kernel directly.
- Delete SelectorCapturePolicyInput.selectorExpression, which
  deriveSelectorCapturePolicy never read; the policy varies only by
  predicate, so it takes one now. Two of the four tests asserted that the
  unread parameter had no effect and could not fail; they go with it.
- Return the Maestro export vocabulary to the maestro package. The cutover
  inlined MAESTRO_TEXT/STATE_SELECTOR_KEYS' values into the CLI call site,
  leaving both constants dead in the package that owns the concept and no
  gate over the two copies. MAESTRO_SELECTOR_PROJECTION is now the one
  statement of it.
- Dedupe SelectorDiagnostics and SelectorDisambiguationDisclosure, declared
  character-for-character twice across the AST/string seam, and name the two
  shared option shapes once instead of five inline copies. The parser-side
  resolution types take an Ast prefix so the twins read as twins.
- Delete three identity wrappers: parsePrivateSelector,
  selectorExpressionToMaestro, and the formatSelectorFailure forwarder —
  nothing passes it a chain any more, so the SelectorChain | string union
  and its branch go too.
- Delete internal/index.ts, an AST barrel whose only consumer was one test
  in the same directory (renamed to engine.test.ts), and the match.ts
  pass-through that existed to feed it.
- ReplaySelectorGrammar had three variants for two behaviors; 'wait' and
  'ordinary' were the same path. It is 'is' | 'positional' now.
- Drop the deleted src/sdk/selectors.ts from .fallowrc.json's entry list.

Behavior unchanged. pnpm check green: 598 unit files / 5278 tests, smoke
35 passed / 3 live skipped, layering 71/71, depgraph 22/22, mutation config
45/45, fallow clean, package smoke sound. Counterfactual: pointing
MAESTRO_SELECTOR_PROJECTION.textKeys at the state keys turns three
replay-maestro-export cells red; restored before commit.

* test(selectors): split the engine aggregation test by source concept

`internal/index.test.ts` (renamed `engine.test.ts` when its barrel went away)
was a 708-line aggregation over the whole engine — past the 500-line tripwire
and mirroring no source module, so it also ran as one serial unit.

It becomes five files that each mirror what they test, plus the parser cells
folded into the existing parse test:

  resolve.test.ts                 alternative fallback, strict uniqueness,
                                  first-match existence
  resolve-disambiguation.test.ts  ADR 0012 ranking: deepest, smallest-area,
                                  winner-vs-challenger disclosure, tie fallback
  resolve-viewport.test.ts        the visibility half: on-screen beats
                                  off-screen, including inside an off-screen
                                  scroll container
  match.test.ts                   per-key matching semantics (text, role,
                                  focused, appname/windowtitle, decoded
                                  newline labels)
  arguments.test.ts               where the selector ends and the command's
                                  positionals begin, both grammars
  parse.test.ts                   +6 grammar/escape cells beside the existing
                                  property tests

The login-form tree shared by resolve.test.ts and match.test.ts moves to
`__tests__/login-form-nodes.ts` rather than being copied into both.

All 27 cells are carried over unchanged and still pass; no file now exceeds
224 lines. pnpm check green: 602 unit files / 5278 tests, layering 71/71,
depgraph 22/22, mutation config 45/45, fallow clean over 127 changed files.

* revert(selectors): keep agent-device/selectors public, behind one AST subpath

The cutover removed the `agent-device/selectors` public subpath as part of
tightening the API. It is in use, so the removal is reverted: the subpath ships
the same ten symbols v0.20.5 shipped, with the same signatures.

That has to coexist with the reason the package façade is string-only, so the
AST leaves through one named door instead of the main one:

  @agent-device/selectors        string-in/string-out; every in-repo consumer
  @agent-device/selectors/ast    the published parser surface; one consumer,
                                 src/sdk/selectors.ts

`packages/selectors/src/ast.ts` re-exports parseSelectorChain,
tryParseSelectorChain, isSelectorToken, the AST-taking findSelectorChainMatch
and resolveSelectorChain, isNodeVisible, isNodeEditable, and types
SelectorChain / SelectorDiagnostics. `formatSelectorFailure` keeps its
published `SelectorChain | string` first parameter as a shim here rather than
widening internal/resolve.ts back to a union — the compatibility obligation
sits at the boundary that owes it.

This is strictly narrower than main, where the AST was reachable from anywhere
in src/ via src/selectors/*. Two gates hold it there: facade-symbols.ts pins
./ast to exactly the v0.20.5 list, and package-boundaries.test.ts asserts
src/sdk/selectors.ts is the only file outside the package that imports it.

Restored alongside: the ./selectors export and tsdown entry/chunk group, the
.fallowrc.json entry, the package-exports supported-subpath list, and both
client-api.md sections. No CHANGELOG entry — nothing is removed any more.

pnpm check green: 602 unit files / 5278 tests, smoke 35 passed / 3 live
skipped, layering 71/71 (10 packages, 32 subpaths), depgraph 22/22, mutation
config 45/45, fallow clean over 129 changed files, package smoke imported all
12 published entry points with publint and attw passing. Verified functionally
against the built dist: the doc's parse -> findSelectorChainMatch example
returns the same shapes as before, resolveSelectorChain still returns an AST
`selector`, and formatSelectorFailure still accepts a chain.

* fix(selectors): correct the two expectations that still assume the removal

Review P1s on a792415a: restoring the public subpath left two gates asserting
it was gone.

- installed-package-metro.test.ts moved `agent-device/selectors` into the
  blocked-specifier list. It goes back to the subpath smoke set, running the
  same `isSelectorToken('||')` + `parseSelectorChain` check it ran before the
  removal, so the file's only remaining delta from main is a formatter reflow.
- owner-files-no-leak.test.ts asserted `dist/src/sdk-selectors.js` was absent.
  It requires the stable named chunk again, and still rejects an auto-numbered
  `selectors2.js` fallback — the pair is what proves the restored tsdown chunk
  group is doing its job, verified against a clean build.

PR body corrected: the removal is no longer described as intentional API
tightening.

* refactor(selectors): satisfy the widened fallow scope after rebase

main's #1591 (the follow-up filed from this review) removed `packages/**` from
.fallowrc.json's ignorePatterns, so the new package is audited for the first
time. Everything below is a finding fallow could not previously see.

Dead surface, all confirmed consumer-free:

- 12 type re-exports from the `.` façade whose shapes consumers only ever
  reach structurally.
- MAESTRO_TEXT_SELECTOR_KEYS / MAESTRO_STATE_SELECTOR_KEYS, orphaned by this
  branch's own MAESTRO_SELECTOR_PROJECTION change, and the test-util
  SELECTOR_VALUE_HAZARDS. All three are module-local now.
- IS_PREDICATE_USAGE_HINT fails --production because its only consumer is the
  is-argument-surface parity test. It gets a commented `ignoreExports` entry
  rather than deletion: the constant is what makes the daemon and CLI raise
  ONE hint instead of two copied strings (ADR 0010), so the test asserting
  that is the point, not an accident.

`fast-check` is now declared by the package that imports it.

Duplication, split by what could be proven:

- `isUsefulVisibilityAnchor` existed character-for-character in both
  packages/selectors and packages/maestro. Moved to
  @agent-device/contracts/snapshot, which both already depend on and which
  already owns this vocabulary. Safe because the `normalizeType` each copy
  called is itself character-identical to the contracts one — checked before
  moving, since a different normalizer would have silently changed which
  nodes anchor.
- maestro additionally reimplemented `normalizeType`, `buildSnapshotNodeMap`
  (as `buildSnapshotNodeByIndex`) and `findSnapshotAncestor`, all
  character-identical to contracts'. Deleted in favour of the shared ones.
- The three scroll-ancestor walks are NOT deduped. They are structurally the
  same walk but each uses a different scrollable predicate, and I have no
  evidence the three agree; collapsing them would be a Maestro-conformance
  change, not a cleanup. Both maestro sites now say so, and the work is filed
  separately.

`projectSelectorExpression` (15 cyclomatic / 22 cognitive, written by the
cutover) splits into a dispatcher plus `readAgreedTextValue` and
`projectSelectorTerms`; all three are under threshold.

Rebase note: the one conflict, in package-boundaries.test.ts, resolved to
NEITHER side — #1591 had already deleted `AdReplayVerifiedTargetGuard` as an
unused export, and this branch deletes the seven ReplaySelectorPort names, so
the conflicting block is empty.

* build: record fast-check for packages/selectors in the lockfile

Declaring the dependency in packages/selectors/package.json without
regenerating pnpm-lock.yaml made every CI job fail in its install step with
ERR_PNPM_OUTDATED_LOCKFILE. My local `pnpm install --frozen-lockfile` printed
"+ 1 dependencies were added: fast-check@^4.9.0" and exited 0, which read as
success but was the same mismatch CI refuses.

Regenerated with the pinned pnpm 11.17.0, not the 11.5.3 on this machine:
11.5.3 rewrites peer-dependency resolution keys repo-wide (dropping
`(supports-color@7.2.0)` suffixes) and produced a 222-line diff. With the
pinned version the diff is the 4 lines this change actually needs, plus
pnpm's alphabetical re-sort of the root selectors entry.
2026-08-04 19:06:39 +02:00