frontend-patterns/workplans/FEP-WP-0003-contrasting-schools.md

---
id: FEP-WP-0003
type: workplan
title: "Challenge the language across architectural schools"
domain: infotech
repo: frontend-patterns
status: blocked
owner: codex
topic_slug: canon
created: "2026-09-24"
updated: "2026-09-27"
state_hub_workstream_id: "13c123f1-a470-560e-ab8e-b270c387930a"
---

# Challenge the language across architectural schools

Part of `research/plan/ResearchProgram.md`. Full phase completion still requires
FEP-WP-0002's evidence gate. Under the user's instruction to continue, a bounded
exploratory slice of T01 and provisional case preparation starts before that gate;
this is not M1 acceptance or authorization to declare M2 complete.

## Compare the six research streams

```task
id: FEP-WP-0003-T01
status: progress
priority: high
state_hub_task_id: "f7a7eea5-5055-545b-a957-55ee4d17a256"
```

Build a source coverage matrix for streams A–F in ResearchProgram.md. Complete a primary-source review for each stream, including disagreements and independent known uses. Q05 and Q06 guide the comparison; source counts alone do not establish coverage.

## Complete contrasting architecture walkthroughs

```task
id: FEP-WP-0003-T02
status: wait
priority: high
state_hub_task_id: "05de53b6-1771-5137-9602-bf614cb1bf0a"
```

After the M1 review, complete VC-03 through VC-06 using the walkthrough template. Mark coverage of VC-07 through VC-10 with evidence and gaps. Revise sequences and architecture decompositions where constraints break the current model.

## Review pattern and ontology changes

```task
id: FEP-WP-0003-T03
status: done
priority: medium
state_hub_task_id: "2b7252c1-c453-5050-96fb-d86a3f3df0f0"
```

Record retain/merge/split/reject decisions, revised relations, quality constraints and counterexamples. Write research/reviews/M2-CoverageReview.md against the M2 gate; hand unresolved questions into live work records before closing.

## Bounded navigation/rendering slice — 2026-09-26

T01 active: SRC-0018–0022 reviewed across navigation/rendering and a narrow resilience
concern. Two existing seeds developed, bringing the corpus to ten hypotheses. See
research/reviews/NavigationRenderingEvidence.md and NavigationCoverage.md. No runtime
observation, new model calls, canonical admission or complete stream coverage.

T02 remains todo for the post-M1 case gate. VC03-ContentPublication.md is provisional
preparation with a baseline, failure trace and offline-reading constraint branch.
Next bounded action under T01: select and pin one implementation, test direct loads,
no-script navigation, history misses and full/fragment cache behavior. Under T02,
independently review the trace and resolve the offline availability gap before
calling it complete. T03 remains todo; keep M1 human validation in WP-0002 T03.

## User-directed pattern broadening — 2026-09-26

The user explicitly requested broader pattern coverage, superseding the previous
slice's candidate-count pause. T01 remains progress: reviewed SRC-0023–0028 and
added six hypotheses (Presentation Model, Derived State, Vertical Feature Slice,
Islands of Interactivity, Failure Boundary, Focus Return). Sixteen drafts now exist;
M1's original seed cap describes its initial subset, not a global admission quota.
See research/reviews/PatternBreadthExpansion.md for B01–B06, five synthetic decision
probes, counterexamples and deferred candidates. No new runtime/inference calls.

T02/T03 remain todo: probes do not complete VC-04–10 or M2. Next evidence under T01:
pin an application and inspect feature imports versus release coupling; exercise
render versus request failures and modal focus after invoker removal. Previous
navigation/history/cache checks remain open. WP-0002 retains independent-human
validation. No frozen-pilot edits, canonical promotion or evidence-gate completion.

## Executed rendering/focus boundary slice — 2026-09-26

T01 progress: research/experiments/boundary-recovery pins React 19.3.0, Radix Dialog
1.1.23 and all dependencies; Chromium fixture exercises eight cases. Final immediate
run meets 7/8 assertions; separate 100 ms nested-settling condition meets 8/8. Three
earlier development results retained, including failures. Ordinary render containment,
event-handler exclusion, explicit 503 state, fallback escalation, existing/removed
trigger focus and explicit replacement target observed. Immediate nested Escape can
close the outer task; root cause unresolved. No delay prescribed as a fix.

Next T01 action: isolate nested dismissal timing, compare production and another
browser, verify readiness/ownership without arbitrary delay. Do not mark its assertion
resolved from the settled run. Feature/release inspection and navigation checks remain
pending. T02/T03 unchanged, sixteen hypotheses, no independent human validation or
M1/M2 completion. See research/reviews/BoundaryRecoveryExperiment.md; no model calls.

## Nested dismissal isolated across browsers/builds — 2026-09-26

T01 progress: unchanged pinned fixture compared across Chromium 151.0.7922.34 and
Firefox 155.0, development/production, raw/traced/readiness/experimental-guard variants,
three trials each. 43/48 obligations met; all outcomes retained in isolation-results.json.
Trace captures inner layer registration/focus before Escape listener ownership transfers:
stale outer handler can close both tasks. Production traced failures reproduce the
mechanism; unmodified production trials passed. Firefox passed 24/24, not immunity.

Private listener-readiness condition passes 12/12; guard loses input in one production
trial and is not a fix. Original fixture/receipts unchanged. See
research/reviews/NestedDismissalIsolation.md. Residual under T01: assess lifecycle-safe
ownership/routing during activation and teardown before recommending a product repair.
No upstream message, deployment, new inference, canonical promotion or M2 completion.
Feature/release coupling and navigation evidence remain pending; T02/T03 unchanged.

## Experimental ownership routing — 2026-09-26

T01 progress: in-memory layout-registered document router tested against unchanged
Radix behavior in a new controlled-dialog fixture. Six scenarios × two browsers ×
two builds × two variants: routed 24/24, raw 20/24. Raw Chromium fails immediate nested
and reopen dismissal in both builds; routed delivery, cancellation, replacement focus
and cleanup pass. No sleep, private-readiness wait or retry. Initial development run
and its faulty exposed-dialog cancellation assertion retained; corrected runner includes
hidden dialogs and verifies listener removal. See research/reviews/NestedOwnershipRouting.md.

The focused question now has an executable candidate mechanism. Broader reuse remains
conditional on animated-exit/competing-owner coverage; no production dependency patch,
upstream message, pattern promotion or M2 completion. Resume feature/import versus
release-boundary and navigation evidence next; keep the router limitation as a live
T01 follow-up rather than requiring a production fork here. Sixteen hypotheses,
T02/T03 and the independent-human gate unchanged. No model calls.

## Feature organization versus independent activation — 2026-09-26

T01 progress: reviewed 17 files at pinned commits in feature-sliced/examples todo-app
and react-microfrontends root-config/navbar; SRC-0031–0035 include primary mechanism
docs. Partial feature interfaces coexist with one application build; separate build/
release definitions coexist with shared startup dependencies. No build, CI, cloud
deployment or rollback execution. FeatureDeploymentSources.json pins all file hashes.

Developed Independent Feature Boundary from the existing seed, bringing the corpus
to seventeen hypotheses. Vertical Feature Slice refined; provisional VC-06 traces
activation, version skew, partial load failure and rollback with a single-cadence
branch. T02 remains todo for its post-M1 gate; this is preparatory work, not M2 acceptance.
See research/reviews/FeatureDeploymentBoundaries.md.

Next T01 evidence: local compatible/incompatible feature versions against unchanged
host, failed load, activation rollback with fresh and already-running sessions, and
shared startup outage. No production workflows/credentials needed. Navigation checks
and broader router-lifecycle limits remain live; T03 and human-validation gate unchanged.
No model calls, deployment, canonical admission or proven generativity benefit.

## Native-module publication/activation/rollback experiment — 2026-09-26

T01 progress: research/experiments/feature-release executes seven scenarios in
Chromium/Firefox, 14/14 expected observations. Compatible R2 activation changes fresh
sessions, not old document bindings; incompatible R3 evaluates before mount rejection;
404 feature failure preserves neighbor navigation; rollback affects fresh/reloaded
sessions; retiring R1 breaks old lazy sessions while loaded R1 persists; shared startup
503 blocks both actions by fixture policy. No CDN, live deployment, backend writes,
model calls or execution of upstream example workflows. Inputs/packages/browser hashes
and request traces recorded; negative controls distinguished from desirable behavior.

Independent Feature Boundary and provisional VC-06 updated, seventeen hypotheses.
Next T01 limits: old-session retention/support policy, concurrent activation updates,
safe reload with unfinished work; navigation/history/cache evidence remains pending.
Do not build a production release platform to satisfy this research model. T02/T03,
independent-human gate and M1/M2 completion remain unchanged.
See research/reviews/FeatureReleaseExperiment.md.

## Requested activation-update conflicts and safe reload — 2026-09-26

T01 progress: conflicts-reload.mjs adds three HTTP stale-writer cases and nine reload
cases in Chromium/Firefox, 21/21 expected observations. Blind overwrite and unguarded
reload reproduce loss as negative controls. Conditional replacement rejects stale maps;
disjoint intent is explicitly reapplied, same-feature rollback stays unresolved.
Draft deferral, preserve/restore, injected storage failure, schema mismatch, explicit
discard, unknown-write gating, edit-during-preflight and post-check activation covered.
New-page schema revalidation retains incompatible text read-only. See
research/reviews/ActivationConflictsAndReload.md. Original release artifacts unchanged.

Requested bounded tests complete; no distributed-store atomicity, native-unload/crash,
real backend outcome or retention authorization claim. These remain T01 limits for
any production recommendation. Next breadth task: pending VC-03 navigation/history/
full-versus-fragment cache evidence. Seventeen hypotheses; T02/T03 and M1/M2 gates
unchanged. No model inference or production actions.

## First prospective cycle completed — 2026-09-27

LEARN-0011 preregistered at f3697c1; htmx 2.0.11 navigation/history/cache experiment
meets 20/20 registered checks (18 browser rows and repeated explicit HTTP checks).
Both browsers reproduce missing-Vary fragment-as-document failure. Outcome is
corroboration, not a new discovery. Active/execution effort recorded in
research/evolution/cycles/2026-09-27-navigation-effort.json; one cycle cannot show a trend.
Candidate profiles/report updated; hypothesis status and provisional VC-03 retained.

WP-0003 T01 retains keyboard/focus/error-feedback and delayed/interrupted enhancement
questions; T02 retains independent walkthrough review and offline-reading branch.
WP-0006 T03 remains progress for comparable-window review and remaining substantive
review-date reconciliation. Choose a new comparison group for materially different
questions. M1/M2 and independent-human validation remain open. See
research/reviews/NavigationHistoryExperiment.md.

## Measured keyboard/focus cycle — 2026-09-27

LEARN-0012 registered at 2b1c9a4 in new comparison group F-navigation-focus-v1.
22/22 native/raw/managed rows complete; raw rows are observations, not fulfillment
of managed obligations. Same-ID focus retained by raw htmx, while authored policy
adds heading/title/status continuation and preserves newer search focus. Outcome
corroboration, hypotheses retained; no AT or human validation, no trend across the
two different prospective groups. See research/reviews/NavigationFocusExperiment.md.

WP-0003 T01 next: delayed history restoration and competing-navigation ownership;
interrupted/late enhancement remains open. T02 retains AT/independent review and
offline branch. WP-0006 T03 remains progress for comparable windows and remaining
review-date reconciliation. No M1/M2 completion.

## Completion ownership compared; navigation fixture paused — 2026-09-27

LEARN-0013 preregistered at e484cae; 24 completed rows after a retained keyboard-helper
correction. Prior policy meets full obligations in 0/12, authored guard 12/12. Record
one revision: check navigation completion ownership separately from focus permission,
including history, errors and newer-request failure. Same authored family; hypotheses
and provisional VC-03 retained. See research/reviews/NavigationOwnershipExperiment.md
and NavigationThreadReview.md. Three distinct cycle groups do not establish a trend.

Agreed pause: do not automatically extend the navigation fixture. Next bounded
WP-0003 T01 question is a preregistered, pinned read-only Zulip navigation/search
source contrast: locate selection/result/focus ownership or counterexamples outside
the authored fixture; prior draft/send evidence does not count as navigation support.
T01 retains pending history disclosure, multiple misses, redirects, delayed swaps,
bfcache/lifecycle and interrupted/late enhancement before any production claim.
T02 retains independent human/AT review and offline VC-03 branch. WP-0006 T03 retains
review-date reconciliation and useful comparable-cycle windows; no M1/M2 closure.

## Independent Zulip navigation source study completed — 2026-09-27

LEARN-0014 preregistered at f3ac569; twelve files at existing Zulip revision
5b06fa3d34f28fa01f459fbf3ba053e3c0858e9c, static ranges/hash manifest and ZN01–ZN08
review retained. Main list-identity guards coexist with off-screen cache updates;
shared feedback, auxiliary callbacks and deferred focus limit generalization. One
revision: effect-specific applicability and explicit client-fragment addressability.
No Zulip app/tests executed, no no-script/full-contract/bug claim. Same Zulip family,
new navigation paths; all candidates remain hypotheses. Local fixture stays paused.

WP-0003 T01 follow-up: preregister a bounded caller/transport/test study of auxiliary
target lookup and anchor continuations, including deferred focus/search wiring only
if needed to establish applicability. Record unknowns; reproduce before claiming a
defect. T02 retains independent human/AT and offline-case obligations. WP-0006 T03
retains remaining review dates and comparable-window work; this static protocol is
not pooled with runtime cycles. No M1/M2 closure. See
research/reviews/ZulipNavigationSourceStudy.md and ZulipNavigationSources.json.

## Systematic classification and next breadth slice — 2026-09-27

T01: ClassificationCoverage.json records provisional direct-responsibility and
selected force trade-offs for all seventeen candidate drafts, with hashes and
rationales. ClassificationCoverage.md is generated and checked against current
candidate families/scales and the original sixteen-seed inventory. Seven original
seeds have developed drafts; nine lack dedicated drafts. No new pattern or evidence
promotion; assignments are author-model interpretations, not full-schema admission.

The next breadth slice is [AuthorityProjectionComparison](../research/plan/AuthorityProjectionComparison.md):
preregister a bounded six-seed authority/projection comparison, distinguish context
choices from patterns, and produce at most two justified drafts. Registration and
execution remain pending; zero new drafts is a valid outcome. The earlier Zulip
caller/transport/test question remains open with its recorded limitations; no fixture
restart. WP-0002 T03 independent validation, T02/T03 gates here, and WP-0006 comparable
measurement remain unchanged. Do not treat classification counts as maturity.

## Authority/projection cycle completed — 2026-09-27

LEARN-0015 preregistered at 2df1d94; six primary documents across four families,
six seed dispositions and two synthetic VC-01/02 decision traces. One classification
revision: separate scoped acceptance, projection placement and delivery schedule.
Zero new drafts; all seventeen hypotheses and candidate profiles unchanged. No
application execution, full-contract recurrence, human validation or M1/M2 closure.
See [review](../research/reviews/AuthorityProjectionComparison.md). Fifth distinct
prospective group; no comparable-window trend.

WP-0003 T01 next: preregister one bounded pinned-application study of shared-state
acceptance versus local editing and a projection transition, using the review's six
questions. Select the application by the needed evidence; retain contrary/unknown
paths. Existing Zulip auxiliary continuation residual stays open; local navigation
fixture remains paused. WP-0002 T03 retains independent usefulness review; WP-0003
T02/T03 gates and WP-0006 T03 review dates/comparable measurement remain open.

## Validate recovery storage and receiver assumptions

```task
id: FEP-WP-0003-T04
status: todo
priority: medium
state_hub_task_id: "7cbb845d-0e13-5356-8da0-41aa8495de2a"
```

Residual origin: FEP-WP-0002-T02, handed off by WP-0007's source-readiness review.
Before stronger guarantees, select/pin a concrete storage and receiver pair; verify
acknowledgement/transaction semantics, interrupted commit/restart and pending-operation
supersession, plus receiver identity retention, replay deduplication and stale ancestry
rejection under lost acknowledgement. Preregister bounded tests; retain failures.
Record which full-contract uses remain unknown rather than infer them from mechanism
success. Existing Matrix synthetic receiver is not real-server proof; device-loss
restoration needs its own explicit backup scope. No new execution is implied by this
handoff. Human/AT/usability stay under WP-0002 T03 / WP-0003 T02.

## Preview ontology review — 2026-09-27

[PreviewOntology-0.1](../research/reviews/PreviewOntology-0.1.md) retains the eight-record
core and separate conditional Conflict Copy / Explicit Reconciliation retrieval.
No mandatory requires edge, general recurrence or M2 closure. T03 remains todo for
the full M2 review; this bounded preview assessment is preparation only.

## Pinned acceptance/projection study — 2026-09-27

LEARN-0016 preregistered at ff0c1d4; ten pinned Zulip source/test files inspected.
[Review](../research/reviews/ZulipAcceptanceProjection.md) corroborates the six-question
aid: tentative local rendering, locked server validation/rendering and event-driven
replacement have different meanings. Response/event ordering, lost-response recovery
and event ownership of a newly opened edit remain unknown; no app/upstream tests run.
Source manifest retains hashes, ranges and the failed web-tool retrieval. No candidate,
profile, 0.1 reference or maturity change; no new independent implementation family.

WP-0003 T01 next: preregister a bounded response/event ownership reproduction around
an edit reopened after HTTP success, an event before response, response lost after
acceptance and navigation away before failure. Include echo-pending eligibility guards
in the setup; do not infer a defect from callback inspection. Reuse pinned application
infrastructure if feasible within a new budget. Existing auxiliary-navigation residual
stays open, local navigation fixture stays paused, and WP-0003 T04 retains storage/
receiver validation. WP-0006 T03 retains review dates/comparable-window work; this sixth
prospective group supplies no learning trend. Human validation and M1/M2/M3 stay open.

## Closeout audit — 2026-09-27

T03 done: [M2-CoverageReview](../research/reviews/M2-CoverageReview.md) records all
seventeen dispositions, conditional relations, quality limits, six-stream evidence
and ten-case coverage. Result: revise/defer, not M2 acceptance. All unresolved work
stays in existing T01/T02/T04, WP-0002 T03 and WP-0004; no new task or workplan.

Workplan blocked because T02's M1 prerequisite remains unmet. T02 is wait until
WP-0002's evidence gate is satisfied; then complete VC-03–06 and review VC-07–10.
T01 remains progress for useful bounded source/reproduction questions; T04 remains
todo for a preregistered concrete storage/real-receiver investigation. These are
unfinished research, not falsely declared external blockers or completed by this
editorial review. Bounded exploratory work retains its existing authorization.