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# Go Assist — Delete `System Platform`

Load the current row and its original optimistic version. Delete is audited,
version-aware soft deletion; never reconstruct an entity from client-supplied
ID/version or invoke a physical-delete command.

```go
package assist_delete

import (
	"crm-erp-service-core-workspace/lib"
	"crm-erp-service-core-workspace/lib/platform"
	"github.com/teaql/teaql-golang/runtime"
)

func DeletePlatform(context *runtime.UserContext, id uint64) (bool, error) {
	entity, err := lib.Q.Platforms().
		WithIdIs(id).

		Comment("what: load current System Platform for deletion").
		Purpose("why: preserve original version for optimistic locking").
		ExecuteForOne(context)
	if err != nil { return false, err }
	if entity == nil { return false, nil }

	_, err = entity.MarkForDeletion().
		AuditAs("Delete System Platform for the requested business operation").
		Save(context)
	return err == nil, err
}

var _ *platform.Platform
```

Compile the source unchanged. Prove retained version `-2`, normal-query hiding,
`DeletedRowsOnly()` visibility, stale-copy rejection, not-found false, audit
enforcement, and generated-entity physical-delete compilation failure.

---

## TeaQL seven-language assist contract

Apply the verified Rust semantic ceiling while using only the exact GOLANG generated and
runtime APIs. Discover APIs through the generated application AGENTS.md and progressive
model-aware Assist. Do not inspect generated domain-library source.

- Do not create plurals by appending `s` or `es`; use the centralized generated plural.
- Human and non-human entities use different generated predicate vocabularies. Preserve
  forms such as “who are active” and “whose email is”; never infer them from English.
- Configure filters, projection, paging, and other query options before `purpose(...)`.
  Comment may appear anywhere in the chain. Purpose enters the executable stage; execution
  requires both values, but comment does not have to immediately precede purpose.
- Every execute/list/stream and every save accepts exactly one context argument:
  `UserContext`. Name that argument `context`, never `runtime`; data services and global
  policy are injected when the context is built. Reserve `runtime` for process-level
  runtime ownership, provider/pool setup, and module assembly.
- Tenant, merchant, identity, permissions, request policy, purpose policy, hard limit,
  and continuous-page cursor policy come only from trusted context, never dynamic JSON or TFP.
- If the required operation is absent after current entity/action and required field
  Assist, stop that path and report MISSING_ASSIST. Do not guess an API or search the
  generated library as a fallback.
- Create each application-owned source file once. After its first compile attempt,
  repair only the smallest block identified by the exact compiler or test diagnostic.
  Preserve unrelated code; do not rewrite the complete file as an error-recovery loop.
- Before a repair that would replace more than 25% of an existing application file,
  stop and report LARGE_REWRITE_REQUEST with the file, exact diagnostic, reason, and
  estimated scope. Initial creation and model-driven regeneration are not repairs.

Capability: `delete`.

- Load the tenant-scoped current entity and use the generated hard-delete or
  domain-specific soft-delete API; do not invent a deletion method.
- Require an audit reason and optimistic version. Test missing audit and stale
  version as explicit failures.