# Verified branch checkpoint — 2026-09-12 This checkpoint describes Codex-956atf's contribution, not a combined release. [PROJECT_GOAL.md](../PROJECT_GOAL.md) remains authoritative; the complete OA/SA release is unfinished. Current user guidance emphasizes close study of Capella semantics and practical, ergonomic engineering workflows. **Linux/WSL builds and all checks are paused until the user explicitly reports networking resolved.** No guest diagnosis, restart or cache transfer is active. Completed Linux evidence remains historical; the VPN remains untouched. ## Verified implementation Previous native acceptance uses source **3c9e6eeb64ce3efc03b29890b82199a42c21f335** on `codex/behavior-authoring-20260910`. It passes 720/720 Windows desktop tests and strict all-target desktop Clippy. It includes direct scenario/process authoring, parent-focus and editing-session/chooser corrections, and boxed workflow events. Evidence checkpoint e7491fb preserves exact logs. Instruction-only merge828c50c retains the incoming user-owned AGENTS/PROJECT_GOAL files unchanged. The actual remote default branch `main` was checked after that merge; its current guidance was read without overwriting the user's local specification. The matching GUI built warning-free and passed recovered SA State, clicked Reuse, and ALT Fragment creation with exact Save/Undo/Redo and final native Open/Save at the 1100x700 client minimum. The whole Project, all identities and both source files match every required history checkpoint. The native session is closed. - [Windows regression/lint evidence](release-chooser-correction-gate-20260911.md) - [Previous native SA evidence](release-scenario-native-3c9e6ee-20260911.md) - [Earlier native OA/SA Action evidence, scoped to 80cf197](release-scenario-native-20260911.md) - [Scenario oracle and reproducible procedure](fixtures/scenario-authoring/README.md) ## Isolated contributions and material limits Core candidate **847b1caa7e75bb82f6ce5193c45bcfc45973ad1a** is on the separate `codex/analysis-core-956atf-20260911` publication branch. Windows execution passes the 128 KiB-thread lifecycle subprocess, all 6 codec tests, 28 analysis tests, 26 numeric tests and strict all-target core Clippy. These counts are separate scopes; the subprocess driver is included in the 6. Production `DEPTH_128_VALIDATED` remains false. Legacy/migration/save integration, release memory measurements and complete source8/transport/evaluator acceptance remain open. [Windows codec evidence](release-analysis-codec-windows-gate-20260911.md). The cleaned R123 canvas at **a31b40d0f8551ed87c8cd66250b9afb4809b3a79** passes 729/729 Windows desktop tests, strict all-target Clippy and the matching GUI build. All 518 input identities agree with Git and the closed receipts. Actual minimum-size OA action, nested state, bound reuse and ALT creation passed Save and exact one-step Undo/Redo Project/SourceBundle comparisons. All 85 archived files match their Git index bytes. Reopen was interrupted in that session and remains unverified. [Exact gates and bounded native evidence](release-behavior-canvas-a31b40d-native-20260911.md) supersede the earlier pre-cleanup gate as this source's checkpoint. Allocation source **3840ca29652e3128ffbcdebd9f39f364e56079ea** passes the full Windows desktop suite: 796 tests, 526 unchanged identified inputs. A dedicated toolbar identity and gesture-local full-name inspection keep the moving work readable while target outlines and hit regions remain frozen. The [feedback decision](release-allocation-feedback-decision-20260912.md) supersedes the unusable fixed-label refusal in the [earlier d9 baseline](release-allocation-d9b3f0d-windows-20260912.md). [Exact saved receipts and renderer evidence](handoff-usage-pause-20260912-final.md). All 24 archived payloads were checked against committed Git bytes at 0c38980. Diagram source **28e21a0ae8090f62106fcb264835ab7457a0d299** passes 19 targeted actual App-tree tests for architecture/state Delete, captured confirmation, placement-property selection, state action/internal-transition rows and F2 focus protection, with exact model/source Undo. [Source-specific gates and independent findings](release-diagram-removal-windows-20260912.md) distinguish this result from the earlier full-suite evaluator failures. All 13 archived payloads match committed Git bytes at cb46ef4. Source **42511f0f8ae46f29e11ae18c1030face654c2994** additionally integrates process/scenario occurrence removal, derived owner capture, event-batch focus guards, target-specific confirmation and reST/help. Its complete Windows suite passed all 818 tests, with no failures/ignored and all 531 inputs unchanged. Strict lint and GUI subsequently pass at **f7d84fa**, after exactly scoped test-only corrections. Its [native deletion checks](release-delete-native-f7-20260912.md) pass exact Save/Undo for architecture/state placement removal, semantic work deletion, state Entry relation and scenario lifeline deletion. Native Save/Undo revealed lost canvas focus; reviewed correction **24bb248** requires its own gates. This is not completed native acceptance. Complete direct manipulation, persistent process placement/lanes and coherent peer integration remain open. Gitea owns live coordination. Complete quantities/calculations/constraints, maintained libraries, graphical/ source/REST parity, transitions and engineering-task usability, aligned reST/help, optimized packages and final independent acceptance remain required. Finite prototypes and published previews are intermediate results. ## Authoritative records - [Project overview and historical coordination](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/1) - [Direct process/scenario canvas work](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/2) - [Activity allocation drag](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/3) - [Analysis, codec and source/API integration](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/7) - [Maintained reusable libraries](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/8) - [Focused diagram deletion](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/15) - [Direct element resizing](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/16) - [Decisions and reusable evidence](DECISIONS.md) - [Shared overview](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/wiki/BehaviorAuthoring20260911) - [Published milestones and their exact limitations](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/releases) - [Historical Linux gate before deferral](release-linux-core-cli-gate-956atf-20260911.md) The duplicated live ledgers were migrated once into Gitea comment412. Their [complete original bytes and manifest](history/2026-09-11-ledgers-before-gitea-migration/manifest.json) preserve historical assumptions, decisions, experiments, limitations and links. Links inside the archived documents retain their original `harness/` base. Do not maintain live plans in this checkpoint or repeat that migration.