elsa-core/specs/012-output-converters/checklists/completion.md

Output Converter Completion Audit

This checklist maps the approved requirements to implementation and automated evidence. A checked item means the requirement is represented in production code and covered by the cited test or review evidence.

Functional requirements

Status	Requirement	Evidence
[x]	FR-001: zero or one explicit converter	Output.Converter; output JSON and Studio round-trip tests
[x]	FR-002: stable ID plus optional JSON settings	OutputConverterConfiguration; serialization tests
[x]	FR-003: unchanged omitted shape and assignment	OutputJsonConverterTests; no-converter runtime tests
[x]	FR-004: no implementation details persisted	serialization and descriptor-redaction tests
[x]	FR-005: native output, converted bound value	activity-execution-context and component tests
[x]	FR-006: native observation surfaces	native output-register assertions and unchanged journal path
[x]	FR-007: synchronous boundary conversion	IOutputConverter.Convert; ActivityExecutionContext.Set
[x]	FR-008: native null bypasses invocation	invoker/runtime null-bypass tests
[x]	FR-009: converter null obeys destination nullability	destination and invoker nullability tests
[x]	FR-010: validate before destination write	invoker atomicity tests
[x]	FR-011: failure preserves destination and native output	unit atomicity and missing-registration component scenario
[x]	FR-012: stable ordinal case-sensitive IDs	registry tests
[x]	FR-013: reject duplicate and case-only IDs	registry tests
[x]	FR-014: behavioral versions use new IDs	public extension documentation and ADR 0012
[x]	FR-015: no inferred selection	explicit configuration path and registry tests
[x]	FR-016: declared source and result types	OutputConverterDescriptor
[x]	FR-017: source assignability	registry and invoker compatibility tests
[x]	FR-018: declared/runtime result assignability	destination resolver and invoker tests
[x]	FR-019: reject unknown destination; allow object	destination resolver and management validation tests
[x]	FR-020: no open generics or chains	registration rejection tests; single configuration model
[x]	FR-021: narrow immutable invocation context	OutputConversionContext
[x]	FR-022: no mutable workflow state or service locator	public converter contract review
[x]	FR-023: active-scope dependency resolution	keyed registration and multi-scope tests
[x]	FR-024: descriptors do not retain scoped instances	registry design and lifetime tests
[x]	FR-025: deterministic, side-effect-free contract	XML/public documentation and reference converter tests
[x]	FR-026: definition-time validation	ValidateOutputConvertersTests
[x]	FR-027: runtime drift validation	missing-registration component scenario
[x]	FR-028: schema plus custom settings validation	settings-validator tests
[x]	FR-029: dedicated normal-pipeline fault, no custom retry	OutputConversionException; fault component scenario
[x]	FR-030: structured contextual metadata	exception-state tests and component incident assertions
[x]	FR-031: originating exception retained at runtime	invoker exception-cause tests
[x]	FR-032: values/settings excluded from default errors	privacy and exception-state tests
[x]	FR-033: server registry/query capability	OutputConverterRegistry; descriptor endpoint
[x]	FR-034: API filtering by declared types	endpoint tests
[x]	FR-035: safe descriptor response	endpoint redaction test
[x]	FR-036: Studio uses API discovery	RemoteOutputConverterService and tests
[x]	FR-037: Studio filters by declared binding types	Outputs-tab tests, including arrays
[x]	FR-038: Studio select/configure/clear/reopen/validate	Outputs-tab and settings-editor tests
[x]	FR-039: schema-driven editor with raw JSON fallback	settings-editor tests
[x]	FR-040: no Core production catalog	repository review; reference converter exists only in tests
[x]	FR-041: inputs/expression coercion unchanged	change-scope review
[x]	FR-042: cross-cutting automated coverage	Core, Management, API, client, component, and Studio suites listed below

Success criteria

Status	Criterion	Evidence
[x]	SC-001: existing no-converter serialization/assignment behavior	omitted-shape and no-converter-path tests
[x]	SC-002: no lookup/allocation and no regression over 2%	zero-infrastructure-call test; fixed-count benchmark measured 1.275 µs versus 1.294 µs with overlapping confidence intervals
[x]	SC-003: static invalid configurations rejected	3 management validation tests
[x]	SC-004: all failure stages yield safe dedicated faults	invoker, privacy, and exception-state tests
[x]	SC-005: complete Studio authoring flow	automated component flow; the two-minute threshold is a manual UX acceptance measure
[x]	SC-006: configuration survives every round trip	Core serialization, API client, and Studio tests
[x]	SC-007: native and converted values independently correct	variable and workflow-output scenarios
[x]	SC-008: extension-only converter registration/discovery	registration-usage and API discovery tests

Verification log

• Core output-converter and serialization tests: 47 passed on net10.0.
• Management definition-validation tests: 3 passed on net10.0.
• API endpoint tests: 6 passed on net10.0.
• API-client component tests: 2 passed on net10.0.
• Runtime component tests: 3 passed on net10.0 (workflow-output scenario plus the corrected variable and missing-registration scenarios).
• Studio output-converter tests: 9 passed on net10.0 against this Core worktree.
• Core project build: passed on net10.0 with zero warnings and errors.
• Core, Management, API, and API-client projects built successfully for net8.0, net9.0, and net10.0 during the solution build.
• The complete solution build could not finish with --no-restore because unrelated projects had no project.assets.json in this worktree (Elsa.Workflows.IntegrationTests, Elsa.Hosting.Management, and Elsa.Workflows.Runtime.UnitTests).
• The final fixed-count BenchmarkDotNet run measured the no-converter path at 1.275 µs versus 1.294 µs for the legacy-equivalent path, with strongly overlapping confidence intervals and no statistically significant regression. Code review confirms that the added null property check does not allocate, while unit tests confirm zero converter-registry, resolver, validator, or invoker calls.

All functional requirements and measurable success criteria have implementation evidence. SC-005's two-minute threshold remains a release-level manual UX confirmation in addition to its automated Studio flow coverage.