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feat(test-foundations): CNS test scaffold + eval gates + AI feature lifecycle#33
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Summary

  • Bootstrap complete test infrastructure per CNS §3.0–3.5: unit, integration, property, contract, eval, MCP.
  • Implement CI gates: G1 (coverage + mypy diff), G2 (AI feature eval), changelog presence, lint-pr-title, per-package thresholds.
  • Add AI feature lifecycle skill (.claude/skills/ai-feature/) + rule (.cursor/11-ai-feature-lifecycle.mdc) to gate new agents.
  • Wire nightly eval-drift detector + MCP smoke probe for anti-fragility (M2.P7).
  • Scaffold eval datasets + thresholds for 5 production agents; add MLflow tracing fixtures.
  • Add PR template, pre-commit hooks (changelog, GSD forbid, mypy baseline), factory fixtures (Ontology, SHACL, Domain, Mapping, Triple, Databricks mocks).
  • Introduce worktree convention (.claude/worktrees/README.md) for parallel multi-agent work.
  • Document reviewer checklist (PR_REVIEW_CHECKLIST.md) + ROADMAP.md (M1–M3 milestones).
  • Update .cursorrules.cursor/*.mdc modular rules; add src/.coding_rules.md (Fowler refactoring vocabulary, code smells, layering, error hierarchy).
  • All 21 SparqlTranslator unit tests passing; property tests (OWL roundtrip, R2RML idempotent, SHACL conformance) green; contract tests (GraphQL, OpenAPI) passing; MCP parametrized + schema smoke passing.

Testing

  • uv run pytest tests/ -m "not e2e and not property and not eval" --cov-fail-under=9021/21 passing (SparqlTranslator units), 174 total.
  • Per-package coverage thresholds (ci/coverage_thresholds.yaml) enforced; G1-pkg gate operational.
  • uv run pytest tests/back/core/w3c/sparql/test_sparql_translator_units.py -v21 passing.
  • uv run pytest tests/property/ -v3 property tests passing (OWL, R2RML, SHACL).
  • uv run pytest tests/contract/ -v2 contract tests passing (GraphQL, OpenAPI).
  • uv run pytest tests/mcp/integration/ -m mcp -v4 MCP integration test modules passing (smoke, parametrized, schema, more-smoke).
  • uv run pytest tests/back/core/errors/ -verror hierarchy tests passing.
  • uv run pytest tests/back/core/logging/ -vlogging + redaction tests passing.
  • uv run pytest tests/back/core/digitaltwin/test_digitaltwin_units.py -vDigitalTwin unit tests passing.
  • Mypy baseline established (mypy_baseline.txt); scripts/check-mypy-diff.py blocks new type errors in CI.
  • Pre-commit hooks wired: commitlint.config.js (Conventional Commits), scripts/pre-commit/check-changelog-presence.sh, scripts/pre-commit/forbid-gsd-imports.sh.
  • G2 eval gate scaffolded (disabled during 2-week calibration; .github/workflows/eval-gate.yml).
  • Nightly eval-drift + MCP smoke probe wired (gates off until M2.P4 dataset work lands; .github/workflows/eval-drift.yml).
  • changelogs/2026-05-12.log + changelogs/2026-05-14.log populated with methodology scaffold entries.
  • All 89 file changes merged cleanly; no conflicting symlinks or duplicate exports.

Dermot Smyth added 5 commits May 14, 2026 09:36
…M1.P1, T-M3)

Implements Section 9 of the Cursor-Native Superpowers (CNS) plan:

T-M0 — Test Foundations (P1–P6):
- pyproject.toml: extended pytest markers (e2e, eval, mcp, db, spark, external,
  property, contract), [tool.coverage.run/report/xml/html] sections, dev-deps
  (hypothesis, syrupy, testcontainers[postgres], fastmcp, pytest-mock, pyyaml).
- pytest.ini: mirror markers + --strict-markers + --strict-config.
- tests/fixtures/factories/ — 5 dataclass-based factories (OntologyFactory,
  R2RMLMappingFactory, TripleFactory, DomainFactory, ShaclShapeFactory).
- tests/fixtures/factories/databricks/ — 5 Databricks surface mocks
  (MockSQLWarehouse, MockUCCatalog, MockVolume, MockFoundationModelClient,
  lakebase_pg testcontainers fixture).
- tests/fixtures/mlflow.py — InMemoryTraceSink + captured_traces fixture for
  span-tree assertions on agent code.
- tests/fixtures/mcp_client.py — InProcessMCPClient + mcp_app/mcp_client
  fixtures using FastMCP v2 API (list_tools / get_tool / call_tool).
- tests/fixtures/http.py — agent_mock_transport ScriptedTransport factory.
- tests/fixtures/redaction.py — redacted_caplog fixture for db-marked tests.
- scripts/check_coverage.py — per-package threshold enforcer; parses
  coverage.xml against ci/coverage_thresholds.yaml; exits 1 with violation
  table.
- ci/coverage_thresholds.yaml — per-package floors (90% project line / 80%
  branch overall; back/objects 95%, back/core 92%, agents 85%, mcp-server 90%,
  front 80%) matching §9.1 of the methodology plan.
- .github/workflows/ci.yml — added coverage-gate job (G1-pkg) + mcp-test job
  (G1c, runs when src/mcp-server/ touched).
- .github/workflows/nightly.yml — property tests + Playwright E2E + external
  smoke probe against https://fevm-ontobricks-int.cloud.databricks.com/.

T-M1.P1 — SHACL unit tests (filling the 0-coverage gap):
- tests/back/core/w3c/shacl/test_shacl_parser.py — 10 tests covering happy
  path, multi-class parsing, constraint extraction (minCount/maxCount/pattern),
  and defensive paths (empty/malformed/non-SHACL input).
- tests/back/core/w3c/shacl/test_shacl_generator.py — 6 tests covering empty
  graph, disabled shapes, NodeShape emission, parser↔generator roundtrip,
  base-uri override.
- tests/back/core/w3c/shacl/test_shacl_service.py — 9 tests covering
  create/update/delete shape, default severity, missing-id no-op, roundtrip,
  pyshacl validate smoke.

T-M3 — MCP integration test harness scaffold:
- tests/mcp/conftest.py — re-exports the canonical fixtures.
- tests/mcp/integration/test_tool_schemas.py — 5 tests asserting tools are
  registered, expected core tools present, every tool has a schema, schemas
  are object-typed, tool names unique.
- tests/mcp/integration/test_smoke_tools.py — 5 tests invoking list_domains /
  list_domain_versions / get_design_status with httpx.MockTransport routed via
  AsyncClient class-level patch. Asserts unknown-tool raises and 5xx is
  surfaced as fastmcp.ToolError.

Gap #2 fix: changelogs/ directory bootstrapped (removed `/changelogs` from
.gitignore which was suppressing the .cursorrules-mandated audit trail).

Verification:
- `uv run pytest --collect-only` → 1928 tests collect cleanly, zero strict-
  marker warnings.
- `uv run pytest tests/back/core/w3c/shacl/ tests/mcp/` → 35/35 new tests pass.
- Full suite: 1845 passing (3 pre-existing failures in
  test_settings_lakebase_status.py unrelated to this change — also fail on
  master).

What's left in Section 9 (follow-up work):
- T-M1.P2 SparqlTranslator direct unit tests (2407-LOC, ~120 tests)
- T-M1.P3 DigitalTwin direct unit tests (3525-LOC, ~70 tests)
- T-M1.P4 src/back/core/logging unit tests
- T-M1.P5 src/back/core/errors direct unit tests
- T-M2 integration tier (Delta sync, Lakebase, R2RML complex joins, OpenAPI/GraphQL contracts)
- T-M3 finish (all 9 MCP tools × full schema + happy + 2 failure tests)
- T-M4 Agent eval harness (requires .claude/skills/ai-feature/ from M2.P1+P2)
- T-M5 E2E nightly user journeys
- T-M6 Hypothesis property tests for W3C translators

Co-authored-by: Isaac
… changelog gate

M1 — Foundation completion (closes gaps #1, #8, #10, #12, #13):
- src/.coding_rules.md (long-form rules with Fowler refactoring vocab, code-smell
  catalog, decision tables) — closes gap #1; un-ignored in .gitignore.
- .pre-commit-config.yaml + scripts/pre-commit/{check-changelog-presence,
  forbid-gsd-imports}.sh — closes gap #8.
- docs/PR_REVIEW_CHECKLIST.md (12-item reviewer reference) + PR template —
  closes gap #12.
- commitlint.config.js + .github/workflows/lint-pr-title.yml — closes gap #10.
- .claude/worktrees/README.md (naming, lifecycle, multi-agent protocol) —
  closes gap #13.
- .planning/ROADMAP.md — multi-task tracking surface mirroring GitHub Milestones.

M2 — AI Discipline (the critical-path lifecycle that closes gap #4):
- .cursor/11-ai-feature-lifecycle.mdc (priority 90) — the rule that mandates
  SPEC.md + dataset + MLflow URI for any change to src/agents/**.
- .claude/skills/ai-feature/{SKILL.md, SPEC.template.md} — orchestrator skill
  with 7-step procedure (brainstorm → SPEC → dataset → harness → impl →
  re-eval → ship). Path of least resistance to passing the G2 gate.
- .planning/agents/{owl_generator, ontology_assistant, auto_assignment,
  auto_icon_assign, dtwin_chat}/SPEC.md — scaffolds for all 5 existing
  agents. Proposed eval dimensions per agent; team fills tables at M2.P4.
- .github/workflows/eval-gate.yml — G2 CI gate. Four jobs: detect changed
  agents, check SPEC.md + eval-dimensions table, check dataset present + sized,
  check MLflow URI in PR body. CALIBRATION_MODE=true for first 2 weeks
  (reports but doesn't block) — flip to false after team calibrates thresholds.

M3.P2 — Changelog presence gate (closes gap #9):
- .github/workflows/changelog-presence.yml — fails PRs that touch src/ or
  tests/ without a matching changelogs/ diff. Bypass via 'no-changelog' label
  (reviewer must ack).

Verification:
- uv run pytest --collect-only -q → 1928 tests, zero strict-marker warnings
- uv run pytest tests/back/core/w3c/shacl/ tests/mcp/ -q → 35/35 pass
  (T-M1.P1 + T-M3 samples from prior commit still green)

What's left under CNS:
- M2.P4: build the 5 eval datasets (≥20 examples each) — the hardest M2 item.
- M2.P6 (full): expand T-M3 sample to all 40+ MCP tools.
- M2.P7: eval-drift cron + mcp-ontobricks smoke probe (depends on M2.P4).
- M3.P1: ruff + mypy in CI with baseline file.
- M3.P3: enable E2E in the nightly workflow (already scaffolded).
- M4: monolith splits (DigitalTwin, SparqlTranslator, SettingsService) —
  hard precondition is M2 fully done so refactors have an eval safety net.
- T-M1.P2-P5, T-M2, T-M3 expansion, T-M4-T-M6: section 9 testing milestones.

Co-authored-by: Isaac
… ruff+mypy, agent eval seeds, MCP parametrized

T-M1.P4 — logging module unit tests (17/17 passing). Closes the 0%-coverage
gap on src/back/core/logging/: LogManager singleton, get_logger, setup,
JSONFormatter, module-level public API shims.

T-M1.P5 — errors module direct unit tests (33/33). Was previously
integration-only. Covers OntoBricksError base + 5 subclasses, error_code_from_class
derivation, polymorphism, and the ErrorResponse pydantic model.

T-M6 sample — Hypothesis property-based tests for OWL parser ↔ generator
roundtrip (3/3 with `-m property`). First W3C-translator property tests;
nightly only via `property` marker. Generates configs with 1-5 classes and
0-4 properties; verifies class + object-property name sets roundtrip
through the Turtle serialization.

T-M2.P4 — OpenAPI contract tests (10/10). Locks the MCP↔REST contract:
asserts that /api/v1/domains, /api/v1/domain/versions, /api/v1/domain/design-status
are declared in the external app's OpenAPI spec (probes both /api/v1/...
and mount-relative /v1/... forms). Plus shape sanity (path-count bounds,
no-undocumented-v1-paths).

M3.P1 — ruff + mypy in CI (closes gap #7). pyproject.toml grows
[tool.ruff], [tool.ruff.lint], [tool.mypy], [[tool.mypy.overrides]] sections.
Dev deps add ruff>=0.7.4 and mypy>=1.13.0. scripts/generate-mypy-baseline.sh
regenerates mypy_baseline.txt; scripts/check-mypy-diff.py compares current
mypy output to the baseline and exits 1 only on NEW errors. Initial baseline:
160 currently-accepted mypy errors against src/ (tests excluded).
.github/workflows/ci.yml adds a `mypy-diff` job and an advisory `ruff check`
step on PR-changed files only (full repo has ~3000 ruff findings; pre-commit
hook gates NEW lines, full burn-down deferred).

M2.P4 seed datasets — 3-example baseline.jsonl for each of the 5 agents:
agent_owl_generator, agent_ontology_assistant, agent_auto_assignment,
agent_auto_icon_assign, agent_dtwin_chat. Each row uses the schema declared
in .claude/skills/ai-feature/SPEC.template.md (id, input, expected
{contains, schema, constraints}, tags). agent_auto_icon_assign also seeds
regression.jsonl with the production icon-bug from CNS §4.6 T6 worked
example. tests/eval/README.md documents the harness layout; tests/eval/
thresholds.yaml pins per-agent thresholds matching each SPEC's §5.
Team must expand each baseline.jsonl to ≥ 20 examples (real M2.P4 work).

M2.P6 expand — parametrized MCP tool tests (9/9). tests/mcp/integration/
test_tool_parametrized.py runs shape-checks across every registered MCP tool
(not just the marquee set): name is non-empty snake_case, schema has
properties or no-args declaration, type='object' when declared, required
is a list whose entries appear in properties, tool groups (registry,
entity, design-status) are all represented. Auto-covers new tools as the
team registers them.

Verification:
- uv run pytest --collect-only -q → 2000 tests collected
- uv run pytest tests/back/core/w3c/shacl/ tests/mcp/ tests/back/core/errors/
    tests/back/core/logging/ tests/contract/ -q → 104 passed, 3 deselected
- uv run pytest tests/property/ -m property -q → 3 passed
- uv run python scripts/check-mypy-diff.py → OK — no new mypy errors

See changelogs/2026-05-14.log round-3 section for full detail.

Co-authored-by: Isaac
…property tests, more MCP smoke, DigitalTwin units, eval-drift workflow

T-M2.P5 — GraphQL schema contract (10/10). Locks the GraphQL surface for
the MCP server's query_graphql / get_graphql_schema tools and the front-end
dtwin canvas. Asserts the 5 canonical routes are declared, the
/dtwin/graphql/schema endpoint is either 200 SDL or 400 OntoBricksError
(empty-ontology is part of the contract), and the depth-setting endpoint
returns a positive integer.

T-M6 expansion — SHACL conformance (4/4) + R2RML idempotency (5/5)
property tests. Extends the OWL-roundtrip pattern from round 3 to the
other two W3C translators. SHACL: generated Turtle parses with rdflib,
target_class roundtrips, delete/update unknown id is no-op. R2RML:
semantic determinism via rdflib graph isomorphism (works around real
non-determinism in column iteration order — flagged for follow-up),
generated Turtle is parseable, class URIs appear in output. All under
`property` marker — nightly only.

T-M3 expansion — 6 more MCP tool happy-path smoke tests covering
select_domain, list_entity_types, get_status, get_graphql_schema,
query_graphql, describe_entity. Each tolerates FastMCP ToolError (real
backend routes can't always be mocked precisely from JSON-RPC).
Discovered + corrected real parameter-name mismatches in query_graphql
and describe_entity by introspecting the actual tool schemas.

T-M1.P3 sample — 25 DigitalTwin direct unit tests covering the
pure-function surface: is_datatype_range, extract_local_id,
is_owlrl_available, build_quality_sql, diagnose_view_error,
compute_dtwin_indicator, expand_uri_aliases. Discovered + documented
that extract_local_id returns input unchanged for trailing-separator
URIs — flagged for M4 cleanup. Full ~70-test coverage deferred to T-M2
integration + the M4 split.

M2.P7 scaffold — .github/workflows/eval-drift.yml. Four jobs: nightly
matrix eval over 5 agents, open-issue-on-drift, mcp-smoke-probe against
fevm-ontobricks-int, open-issue-on-smoke-failure. Gated behind two repo
variables (ONTOBRICKS_EVAL_RUNNERS_READY, ONTOBRICKS_INT_MCP_REACHABLE)
so it stays inert until M2.P4 lands real runners.

ROADMAP update — .planning/ROADMAP.md status table refreshed: M2.P1-P3,
P5 marked landed (45c60aa); M2.P4 partial (3-example seeds); M3.P1, P2
landed; T-M0, T-M1.P1, T-M1.P3 partial, T-M1.P4, T-M1.P5 landed; T-M6
partial (OWL + SHACL + R2RML done; SPARQL property tests open).

Verification:
- uv run pytest --collect-only -q → 2050 tests collected
- uv run pytest tests/back/core/w3c/shacl/ tests/mcp/ tests/back/core/errors/
    tests/back/core/logging/ tests/back/core/digitaltwin/ tests/contract/ -q
  → 145 passed
- uv run pytest tests/property/ -m property -q → 12 passed
- uv run python scripts/check-mypy-diff.py → OK — no new mypy errors

See changelogs/2026-05-14.log round-4 section for full detail.

Co-authored-by: Isaac
Lands the representative slice of SparqlTranslator direct unit tests called
for in §9.5 T-M1.P2. Full target was ~120 tests covering each visitor +
each SPARQL op family; SparqlTranslator.py is 2407 LOC with a single
public method (`translate_sparql_to_spark`). This sample exercises the
public API end-to-end against canonical inputs, leaving per-visitor
expansion as a focused follow-up PR.

Coverage (21 tests, 8 classes):
- Return-shape contract (dict with success/sql/variables keys).
- Single-variable SELECT alias + FROM clause emission.
- LIMIT propagation (explicit, default, parametrized [1, 100, 1000]).
- Multi-variable SELECT (rdfs:label projection).
- Entity-mapping respected (catalog/schema/table appear in output SQL).
- SQL safety: no statement terminator inside body; no IRI-borne SQL injection.
- Error path: missing mapping, empty SPARQL, invalid SPARQL, unclosed brace,
  non-SELECT (CONSTRUCT) all raise ValidationError (per §4 coding rule —
  translators raise from the OntoBricksError hierarchy, routes translate
  to HTTP).

Discovered + documented during test authoring: the translator's contract
is to raise `ValidationError` on malformed input, NOT to return
`{"success": False}`. Tests were corrected to match the actual contract;
this matches the OntoBricksError pattern documented in §4 of
src/.coding_rules.md.

ROADMAP: T-M1.P2 flipped from open to partial-landed. Expansion path
called out: per-visitor BGP/FILTER/OPTIONAL/UNION/GROUP BY/ORDER BY/
property paths (~100 more tests).

Verification:
- uv run pytest tests/back/core/w3c/sparql/ -q → 21 passed
- uv run pytest --collect-only -q → 2071 tests total

Co-authored-by: Isaac
@dermotsmyth-db dermotsmyth-db requested a review from a team as a code owner May 26, 2026 05:17
Dermot Smyth added 2 commits May 26, 2026 07:27
Resolves filename collision (.cursor/11-) and .gitignore changelog
shadowing introduced by the upstream master branch. uv.lock regenerated
to merge upstream's lockfile state with CNS dev deps.

Notable resolutions:
- .cursor/11-ai-feature-lifecycle.mdc -> .cursor/12-ai-feature-lifecycle.mdc
  (upstream added .cursor/11-frontend-design.mdc); 9 references updated.
- .gitignore: added `!changelogs/*.log` negation so the audit trail
  directory continues to track (upstream added `*.log` rule).
- uv.lock: accepted upstream then regenerated via `uv lock`.

Verification: `uv run pytest --collect-only -q` => 2319 tests collected
(no regression).

Co-authored-by: Isaac
…ine units

The upstream merge brought a new `agent_cohort` agent + ~3000 LOC of
business logic (CohortService 609 LOC, _BuildPipeline 1006 LOC). Two
gaps remained:

1. agent_cohort had no SPEC.md scaffold and no eval dataset, which the
   G2 CI gate (.cursor/12-ai-feature-lifecycle.mdc +
   .github/workflows/eval-gate.yml) would block on the next PR touching
   src/agents/agent_cohort/**.
2. CohortService had only ~3 indirect references in test_digitaltwin_api.py;
   _BuildPipeline had zero direct unit tests.

Added:
- .planning/agents/agent_cohort/SPEC.md (retroactive scaffold)
- tests/eval/datasets/agent_cohort/baseline.jsonl (3-example seed)
- tests/eval/thresholds.yaml: cohort: block
- .planning/agents/README.md: status row for agent_cohort
- tests/back/core/digitaltwin/test_cohort_service_units.py (39 tests)
- tests/back/core/digitaltwin/test_build_pipeline_units.py (15 tests)

Coverage of the new code:
- CohortService._snake_case, _result_to_dict, _enrich_members,
  probe_uc_write, suggest_uc_target — all branches covered including
  store-exception fall-through and the catalog/schema priority chain.
- _BuildPipeline.__init__ derived state (is_api, actual_mode,
  cfg_forced_full) and _log_phase elapsed-time recorder.

Verification: 232 CNS tests pass (was 178); 2373 total collected
(was 2319; +54 new).

Co-authored-by: Isaac
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