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ARCADIA-Studio/harness/PLAN.md

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# First release execution plan
Updated 2026-09-11. [PROJECT_GOAL.md](../PROJECT_GOAL.md) is the authoritative
current objective. [STATE.md](STATE.md) records exact execution/evidence and leases;
[TASK_LEDGER.md](TASK_LEDGER.md) separates facts, assumptions and decisions.
The complete previous plan is [preserved byte-for-byte](history/2026-09-10-ledgers-before-continuation-refresh/PLAN.md).
Its earlier goal paths, active-process claims and Escape pauses are historical.
## Outcome and working principles
Deliver usable, complete OA/SA engineering workflows on Windows and Linux, with
one precise reST contract and equivalent graphical, textual and REST editing.
Constraints/calculations, quantities/units and reusable libraries are explicit
requirements alongside behavior/state modeling, traceability and navigable help.
Small and large models must be practical to author entirely in uncluttered text;
evaluate complete authored and stabilized models, not abbreviated grammar sketches.
Later Arcadia layers remain future scope. Compilation, metadata fields and polished
screens alone do not satisfy this outcome.
Retain the shared typed core, stable identity, semantic ownership/allocation distinct
from geometry, validated atomic commands and exact source/history. Persistent
extensions need coherent references/deletion, transition, source/migration,
API/schema and reachable graphical authoring. Define observable acceptance before
broad downstream changes. Do not silently promote a design proposal to a decision.
## Capability milestones
| Milestone | Work and acceptance | Dependency/current limit |
| --- | --- | --- |
| 1. Reliable direct authoring | Exercise actual minimum/wide native creation, allocation, editing, rejection, cancellation and history without implicit draft application or placement drift. Integrate compact named behavior creation after its coherent external gate. | Named creation4bb4aaf is imported; combined desktop676/676, format and strict Clippy pass at2cc4d11. Native80cf197 passes all four OA creations/history/reopen; new workspace fixes and production chooser await compilation. Workspace/B3/palette/recovery/packages are imported. Root owns this host's Cargo/native lease. |
| 2. Coherent process/scenario work | Interactive ordered/explicit process editing; clicked root/nested scenario insertion; exact reuse bindings and caller return; measured canvas/zoom/scroll; visible scoped Create/Delete lifetimes. Validate model/source/identity and no unintended edit during navigation, including stale/deleted/retargeted references and recovery. | B1/B2/B3 regressions pass in the full suite. Local B4 remains cfg(test); Codex-ytr83r owns production Scene integration and its independent native gate. Use the independently self-checked oracle for native checkpoints. |
| 3. Precise engineering analysis | Compare owned properties, analysis contexts and existing-data/external alternatives; settle quantity kind/unit/value, numerical policy, calculation/binding and Boolean/error/unknown semantics through falsifying examples. Implement mixed-unit budgets and reusable calculation/constraint definitions with full UI/source/REST parity and exact history/recovery. | B/shared-check/full-capture and R6/R7 architecture ratified after complete fixtures and criticism. Exact numeric/work-meter foundation is undeclared and under independent review. Approximate profile and full evaluator parity remain required. |
| 4. Maintained reusable libraries | Compare package/definition/instance alternatives. Establish pinned identity/version/dependency closure, local edits, import bindings, detach and explicit three-way updates. Demonstrate two projects, two independent instances, offline reopen, conflicting updates and stable unaffected identities. | Exact pins plus verified same-origin typed compatibility, explicit source preparation/acceptance and three-way editable updates are ratified. Finite120-assertion experiment is not production contract/archive/consumer implementation. |
| 5. Understandable complete engineering tasks | Close teaching, OA↔SA transition/reconciliation, typed state/data/interface, artifact, saved-view and hosted workflows. Establish complete text-only creation/refactoring/modular maintenance with stable identity. Replace concrete long homogeneous selectors with contextual/searchable bounded choices; verify large models, keyboard access, minimum sizes and failure/recovery. Keep offline guide/examples aligned. | A complete warning-free text-only model probe passes source/identity/rename/reparent/file-move checks; measure usability separately. Anchored chooser passes13 isolated mounted tests under cfg(test); production inspector/review integration is active; its compile/native gates remain open. Separate-host CLI is coherent at01b76a1 and awaits import here. Reassess current goal rather than copying historical scope exclusions. |
| 6. Release confidence and delivery | Fresh current Windows/Linux suites, strict Clippy/format, normative reST/OpenAPI/migration/examples; actual GUI/service transport, optimized builds, runtime/notices/archive/provenance/checksums and clean-environment launch. Fresh independent requirements/domain/parity/architecture/UX/runtime review; resolve material findings, then final handoff. | Integrates all preceding capabilities. Linux runtime remains open; use an approved supported environment, preserving historical failed/denied experiments. Historical previews are not final distributions. |
Milestones are capability gates, not a rigid serial schedule. Root can continue
build/native acceptance while independent foundational investigations compare
alternatives. Libraries and analysis share definition-resolution assumptions and
must converge coherently before broad model/schema edits. User workflows and
cross-representation evaluators guide implementation boundaries.
## Immediate execution sequence
1. Complete the coherent workspace/production chooser build and focused gates,
then stage a new GUI for real engineering tasks. Full676/format/Clippy passed
for2cc4d11; working changes require their own verification.
2. Exchange exact verified commits with the separate host, preserving its workspace
ownership. Do not merge the bundle-transfer branch or assume remote publication.
3. Use the self-checked [scenario oracle](scenario-authoring-contract.rs), follow
its [native procedure](fixtures/scenario-authoring/README.md), and compare exact
whole snapshots for Undo/Redo/reopen at minimum/wide sizes.
4. Integrate and measure the exact numeric/unit/work-meter foundation, resolve
independent findings, then extend actual model/source/API/GUI under the ratified
B/R6/R7/full-capture and exact-pin/typed-compatibility contracts. Preserve explicit
approximate numeric, complete consumer/archive and two-project release gates.
5. Update current ledgers and durable decisions when evidence changes the plan.
Reassess unresolved assumptions before expanding downstream implementation.
## Coordination and evidence rules
Use Gitea issue #1 and Wiki for current ownership/handoffs; read before resuming.
Codex-956atf, Codex-9e8r6t and Codex-ytr83r are distinct hosts. Cargo/native leases
are host-local; shared source ownership is coordinated.9e8r6t owns the next runnable
Windows named-authoring prerelease and contextual-source/CLI; ytr83r owns B4 Scene
and its platform gates. Root owns local chooser/numeric/workspace integration.
Updated AGENTS requires runnable milestone prereleases. User#178 authorizes existing
MCP credential reuse for Git/REST; secrets must never be printed or committed.
Direct branch publication replaces bundle work when available; old exact bundles
remain valid evidence and transfer branches must not be merged.
Record exact source/binary, command exit, test scope and native model/source oracle.
Do not add focused reruns to full-suite totals or transfer old binary acceptance.
Older denied Linux workaround instructions remain applicable to that action; do
not bypass them. Older stopped native sessions do not prevent currently authorized
native work. The [archived plan](history/2026-09-10-ledgers-before-continuation-refresh/PLAN.md)
and [archived progress](history/2026-09-10-ledgers-before-continuation-refresh/STATE.md)
preserve all previous strategy and scoped evidence; archive report links resolve
from their original `harness/` directory.