# Source7 native acceptance fixture

This is the frozen baseline for separately scoped native cases. Current passes
and remaining rendering/workflow gates are recorded in the
[native acceptance report](../../release-source7-native-acceptance-20260907.md);
fixture generation alone is not native acceptance. `base/project.arcadia` and its included
`rationale.arcadia` contain43elements and9relations: OA and SA callers each reuse
an A→B→C procedure twice and through one nested wrapper. A direct X contribution
allows a caller link specifically into B. The SA boundary has two parameterless
operations and a correlated Reply. All identities are deterministic.

Copy the complete `base` directory into a fresh working directory per case. Keep
the baseline unchanged. `harness/source7-native-contract.rs` generates it and
checks actual saved results against an independently constructed complete model
and source update. It refuses migration, UUID stabilization or whitespace
normalization. Current exact baseline generation and comparison passed against
the source7 core; this does not constitute UI acceptance.

Cases for the actual compiled desktop:

- `operation-reset`: edit the first existing Call (`@operation_probe_43`) to
  select Reset's exact allocation (`@operation_probe_30`). Reply remains
  independently identified and derives this Call's operation. No new model
  records are expected.
- `operation-status`: on a separate baseline copy, select ReadStatus's allocation
  (`@operation_probe_31`) on the same Call. Its authored message name is retained.
- `oa-link` / `sa-link`: in the appropriate `@oa_caller` / `@sa_caller`, create
  one contextual Precedence from direct `@oa_x` / `@sa_x` into B through the first
  reference R1. Enter name `First assessment gate` and guard `Check accepted`.
  Repeated reference R2 and the procedure definition must remain unchanged.
- `oa-nested` / `sa-nested`: target B through R3 and its Inner assessment reference.
  The exact two-component instance path is required.
- `baseline`: Undo the one accepted edit, save, and compare all model/source
  bytes. Redo and saved reopen must return the same accepted identity and fields.

For creation checks, exactly one newly allocated v4 relation UUID is permitted.
Only that fresh nonce is read from the native result; every authored field,
alias, owner, path, purpose, dependency and complete source update is predicted.
No existing identity or unrelated record is excluded from comparison. Preserve
the accepted files/hashes to prove that Redo/reopen retain this allocated UUID.

Build the checker using the current source7 core library and matching serde_json
library, then run `CHECKER generate NEW_DIRECTORY` or
`CHECKER check MODE WORKING_DIRECTORY/project.arcadia`. Source6 teaching and
historical recovery oracles remain in their separate fixture directories.

## Additional purpose cases: validated oracles, native pending

New source in `harness/source7-native-contract.rs` adds two independent incidence
oracles. Direct-rustc `-D warnings` compilation passed in4.05s during a coordinated
brief lease; both purpose self-checks passed. Existing base bytes and its manifest
remain unchanged. Native purpose authoring/history is not yet accepted.

Validated checker: `.local/native-qa/source7-native-contract-incidence.exe`, SHA256
`16994DC437F5CCC5E5F6FBB4212C03449F2389AE4615FA98B2930B3637468EE3`.
The original checker remains unchanged at SHA256
`4AC615A099F23A78F111BAD3966A3CCB808FCA1C5FC46FBAC9A947508A568600`.
Logs: `.local/native-qa/source7-incidence-{build,selfcheck,generation}.log`.
Generated separate fixture `.local/native-qa/source7-incidence-base` passed the
complete baseline check; entry SHA256
`77C26FD2DD71514AB89C0FA71113825AC8F3DBD8F71A56EFAE8E5430C92D99B8`.
Regenerated original baseline matched all three manifest hashes; preserved native
OA-link and operation-Reset accepted cases also passed the extended checker.

To reproduce, build the checker against matching current core/serde libraries, preserving the
old checker executable, and first run `CHECKER verify-incidence-contract`. This
constructs expected typed commands, proves complete core analysis with exactly
one assembly record and unchanged precedence/entries/exits, checks invalid
direction/work counterfactuals, and checks stable source updates. Native check
modes predict the entire Project and two-file source bundle; only the new link's
v4 nonce is taken from actual output, never its name, endpoints, purpose or evidence.

### OA Exchange assembly

Run `CHECKER generate-incidence NEW_DIRECTORY`; this separate deterministic variant
adds one Interaction, `@oa_assessment_handoff`, **Assessment handoff X to B**,
from `@oa_work_x` to `@oa_work_b`. It contains43elements/10relations/two sources.
Do not replace `base` with this variant. Check the clean copy with
`CHECKER check incidence-baseline NEW_DIRECTORY/project.arcadia`.

In OA caller, choose **Tools → Qualified link / assembly…**. Set source to direct
X (`[]/oa_x`); Choose target → Enter First assessment → B (`[oa_r1]/oa_b`). Enter
name **Caller assessment handoff**. Choose **Exchange assembly** and first leave
evidence empty: Apply must refuse. Then select the exact **Assessment handoff X to B**
Interaction; Apply should become available. Apply once and Save a fresh copy.

Run `CHECKER check oa-exchange-assembly SAVED/project.arcadia`. Undo/Save uses
`incidence-baseline`; Redo/Save uses `oa-exchange-assembly` and must preserve the
same accepted UUID/bytes. The link is incidence: no precedence arrow/guard or
merged execution is inferred. Core proof checks its exchange contributes to this
caller’s behavior coverage, not the shared procedure’s global coverage. The
reversed contextual endpoint counterfactual must be rejected; deleting the
evidence exchange removes its dependent incidence link (automated oracle only).

### SA Common work incidence

Use a fresh copy of the original unchanged `base`, not the exchange variant.
In SA caller, choose **Tools → Qualified link / assembly…**. For source Enter
First assessment → B (`[sa_r1]/sa_b`); for target return Root then Enter Second
assessment → B (`[sa_r2]/sa_b`). Enter name **Shared assessment work** and select
**Common work incidence**. Choosing **X · Check authorization** (`@sa_work_x`)
as evidence must reject; repair to exact **B · Review assessment** (`@sa_work_b`).
Both full reference paths must remain distinct while the shared work identity is
the same. Apply once and Save a fresh copy.

Run `CHECKER check sa-common-work SAVED/project.arcadia`. Undo/Save uses `baseline`;
Redo/Save uses `sa-common-work` and exact accepted UUID/byte comparison. This records
shared identity; it neither fuses the two occurrences nor creates execution order.
The complete-model oracle rejects renamed/duplicated work, collapsed instance
paths, wrong evidence or unrelated record changes.

After compiling, also regenerate original `generate` into a fresh scratch folder
and compare its three hashes with the existing manifest, then rerun a preserved
old accepted case. These checks establish that extending the checker did not alter
the already-measured baseline or existing expected results.