Apache Shardingsphere Gen Ut

Generate Unit Tests

Input Conventions

Required inputs:

• Target class list (fully-qualified class names are recommended).

Optional inputs:

• Module name (limits Maven command scope).
• Test class list (for targeted execution only; does not limit in-place updates for related test classes).

Default completion level:

• Unless the user explicitly waives or lowers the target, requests such as "add tests" remain bound to R10-A completion criteria (including default coverage and quality gates).

Missing input handling:

• Note: this section only describes entry handling; final decisions follow R7/R10.
• Missing target classes: enter R10-INPUT_BLOCKED.
• Missing test classes: auto-discover with the TargetClassName + Test convention.
• No related test classes: create <TargetClassName>Test in the resolved module test source set.
• Cannot resolve <ResolvedTestModules>: enter R10-INPUT_BLOCKED and request additional module scope.

Terms

• <ResolvedTestClass>: one fully-qualified test class or a comma-separated list of test classes.
• <ResolvedTestFileSet>: editable file set (space-separated in shell commands), containing only related test files and required test resources.
• <ResolvedTestModules>: comma-separated Maven module list used by scoped verification commands.
• <ResolvedTargetClasses>: one fully-qualified production class or a comma-separated list of target classes from user input.
• Target-class coverage scope: for each target class, aggregate coverage for the target binary class and all binary classes whose names start with <targetBinaryName>$ (including member/anonymous/local classes).
• Related test classes: existing TargetClassName + Test classes resolvable within the same module's test scope.
• Assertion differences: distinguishable assertions in externally observable results or side effects.
• Necessity reason tag: fixed-format tag for retention reasons, using KEEP:<id>:<reason>, recorded in the "Implementation and Optimization" section of the delivery report.
• Baseline quality summary: one pre-edit diagnostic run that combines rule scanning, candidate summary, and coverage evidence for the current scope.
• Verification snapshot digest: content hash over <ResolvedTestFileSet> used to decide whether a previous green verification result is still reusable.
• Gate reuse state: persisted mapping from logical gate names (for example target-test, coverage, rule-scan) to the latest green digest for that gate.
• Latest green target-test digest: compatibility alias for the target-test entry in Gate reuse state.
• Consolidated hard-gate scan: one script execution that enforces R8, R14, and all file-content-based R15 rules while still reporting results per rule.

Module resolution order:

1. If the user explicitly provides modules, use them first.
2. Otherwise, resolve by searching upward for the nearest parent pom.xml from <ResolvedTestFileSet> paths.
3. Otherwise, resolve by searching upward for the nearest parent pom.xml from target class source paths.

Mandatory Constraints

• Norm levels: MUST (required), SHOULD (preferred), MAY (optional).

• Definition source principle: mandatory constraints are defined only in this R1-R15 section; other sections only provide term/workflow/command descriptions and must not add, override, or relax R1-R15.

• R1: MUST comply with AGENTS.md and CODE_OF_CONDUCT.md; rule interpretation should prioritize corresponding clauses and line-number evidence in CODE_OF_CONDUCT.md.

• R2: test types and naming

  • Non-parameterized scenarios MUST use JUnit @Test.
  • Data-driven scenarios MUST use JUnit @ParameterizedTest(name = "{0}") with @MethodSource + Arguments.
  • Parameterized test method signatures MUST use final String name as the first parameter.
  • Parameterized tests MUST NOT use Consumer (including java.util.function.Consumer and its generic forms) in method signatures or scenario-transport arguments.
  • Each parameterized test MUST provide at least 3 Arguments rows; fewer than 3 is a violation and MUST be converted to non-parameterized @Test.
  • Parameterized tests MUST NOT introduce new nested type declarations (member/local helper class / interface / enum / record) for scenario transport; use Arguments rows plus existing or JDK types instead.
  • MUST NOT use @RepeatedTest.
  • Test method naming MUST follow CODE_OF_CONDUCT.md: use the assert prefix; when a single test uniquely covers a production method, use assert<MethodName>.

• R3: change and execution scope

  • Edit scope MUST be limited to <ResolvedTestFileSet>.
  • Path scope MUST be limited to src/test/java and src/test/resources.
  • MUST NOT modify production code or generated directories (such as target/).
  • MUST NOT modify other test files to fix failures outside scope; if scope expansion is needed, MUST be explicitly approved by the user in the current turn.
  • MUST NOT use destructive git operations (for example, git reset --hard, git checkout --).

• R4: branch list and mapping

  • Before coding, MUST enumerate branches/paths of target public methods and build branch-to-test mappings.
  • Branch mapping scope MUST exclude Lombok-generated methods without custom logic.
  • By default, one branch/path maps to one test method.
  • Whether to keep additional tests on the same branch is determined by R13.

• R5: test granularity

  • Each test method MUST cover only one scenario.
  • Each test method MUST call the target public method at most once; additional assertions are allowed in the same scenario.
  • For parameterized tests, each Arguments row MUST represent one independent scenario and one branch/path mapping unit for R4.
  • For parameterized tests, Arguments row count MUST be greater than or equal to 3.
  • Tests MUST exercise behavior through public methods only.
  • Coverage-relevant invocations of target public methods MUST appear in test method bodies together with assertions for the externally observable result of that invocation.
  • Helper methods and @MethodSource providers MUST NOT invoke target public methods merely to warm caches, precompute coverage, or otherwise execute target behavior without assertions in the same test method body.
  • Public production methods with business logic MUST be covered with dedicated test methods.
  • For interface targets, only default public methods are required test targets by default, and non-default public methods MUST NOT be tested unless the user explicitly requests them in the current turn.
  • Dedicated test targets MUST follow the R4 branch-mapping exclusion scope.

• R6: SPI, Mock, and reflection

  • For interface default methods, this rule overrides SPI instantiation requirements in R6: tests MUST use Mockito CALLS_REAL_METHODS to invoke real default implementations, and this path does not require SPI-bypass justification.
  • If the class under test can be obtained via SPI, MUST instantiate by default with TypedSPILoader/OrderedSPILoader (or database-specific loaders), and MUST keep the resolved instance as a test-class-level field (global variable) by default.
  • SPI metadata accessor methods TypedSPI#getType, OrderedSPI#getOrder, and getTypeClass are default no-test-required targets.
  • For these accessors, tests MUST NOT be added by default; they are allowed only when the user explicitly requests tests for them in the current turn.
  • If such tests are added without explicit request, they MUST be removed before completion.
  • If not instantiated via SPI, MUST record the reason before implementation.
  • Test dependencies SHOULD use Mockito mocks by default.
  • Reflection access MUST use Plugins.getMemberAccessor(), and field access only.

• R7: related test class strategy

  • If related test classes already exist, MUST update in place and fill missing coverage first.
  • If no related test class exists, MUST create <TargetClassName>Test.
  • If the user explicitly provides a test class list, it is only used as execution filtering input and MUST NOT replace the "in-place update of related test classes" strategy.
  • Deletion/merge of coverage-equivalent tests is determined by R13.

• R8: parameterized optimization (enabled by default)

  • MUST run pre-implementation candidate analysis and output an R8-CANDIDATES record (target public method, candidate count, decision, and evidence).
  • MUST report the mergeable method set and merge candidate count.
  • Candidates meeting all conditions below are considered "high-fit for parameterization":
    • A. target public method and branch skeleton are consistent;
    • B. scenario differences mainly come from input data;
    • C. assertion skeleton is consistent, or only declared assertion differences exist;
    • D. parameter sample count is at least 3;
    • E. parameterized test body does not require dispatch logic via switch.
  • "Declared assertion differences" means differences explicitly recorded in the delivery report.
  • If a candidate requires switch in a @ParameterizedTest body to distinguish argument rows, it is not high-fit and MUST NOT be refactored to parameterized form.
  • High-fit candidates MUST be refactored directly to parameterized form.
  • For high-fit candidates, a "do not recommend refactor" conclusion is allowed only when refactoring causes significant readability/diagnosability regression, and the exception MUST include a Necessity reason tag with concrete evidence.
  • Parameter construction MUST use Arguments + @MethodSource.
  • MUST provide either a "recommend refactor" or "do not recommend refactor" conclusion with reasons for each candidate; when no candidates exist, MUST output "no candidates + decision reason".
  • If high-fit candidates exist but neither parameterized refactor nor valid KEEP evidence is present, status MUST NOT be concluded as R10-A.

• R9: dead code and coverage blockers

  • When dead code blocks progress, MUST report class name, file path, exact line number, and unreachable reason.
  • Within this skill scope, MUST NOT bypass dead code by modifying production code.

• R10: state machine and completion criteria

  • R10-INPUT_BLOCKED: missing target classes, or unable to determine <ResolvedTestModules>.
  • R10-A (done): all of the following must be satisfied:
    • scope satisfies R3;
    • target test command succeeds, and surefire report has Tests run > 0 (recommended to also satisfy Tests run - Skipped > 0);
    • coverage evidence satisfies the target (default class/line/branch 100%, unless explicitly lowered by the user);
    • each class in <ResolvedTargetClasses> has explicit aggregated class-level coverage evidence (CLASS/LINE/BRANCH counters with covered/missed/ratio) over the Target-class coverage scope, and all ratios satisfy the declared target;
    • Checkstyle, Spotless, two R14 scans, and all required R15 scans all pass;
    • R8 analysis and compliance evidence are complete, including R8-CANDIDATES and candidate-level decisions (refactor or valid KEEP evidence).
  • R10-B (blocked): under the "production code cannot be changed" constraint, dead code blocks coverage targets, and evidence satisfies R9.
  • R10-C (blocked): failure occurs outside R3 scope, and evidence satisfies R11.
  • R10-D (in-progress): none of R10-INPUT_BLOCKED/R10-B/R10-C/R10-A is satisfied yet.
  • Decision priority: R10-INPUT_BLOCKED > R10-B > R10-C > R10-A > R10-D.
  • MUST NOT conclude the task as completed while in R10-D; continue implementation and verification loops until reaching a terminal state.

• R11: failure handling

  • If failure is within R3 scope: MUST fix within <ResolvedTestFileSet> and rerun minimal verification.
  • If failure is outside R3 scope: MUST record blocking evidence (failed command, exit code, key error lines, blocking file/line) and request user decision.
  • Minimal verification is defined as "target test command + one R14 hard-gate scan command".
  • Minimal verification is only for in-scope repair and MUST NOT replace final gating of R10-A.
  • Retryable errors (temporary plugin resolution failure, mirror timeout, transient network jitter) MAY retry up to 2 times.

• R12: 100% coverage optimization mode

  • If target class coverage evidence is already 100%, MUST skip coverage completion and execute only R8 parameterized optimization.
  • Coverage judgment MUST be reproducible (command + report path).
  • In this mode, MAY omit R4 branch mapping output, but MUST mark R4=N/A (triggered by R12) in rule mapping and attach coverage evidence.

• R13: test necessity trimming

  • Trimming order MUST be fixed as "objective trimming -> exception retention review".
  • In objective trimming stage, MUST first remove coverage-equivalent tests and re-verify coverage uniformly, then remove redundant mock/stub/assertion and single-use local variables that do not affect branch selection/collaborator interaction behavior (call count, parameters)/observable assertions; if retention significantly improves readability, MAY keep and mark Necessity reason tag.
  • Local variable declarations in test code MUST NOT use final; this rule applies only to local variables and does not change R15-E for parameterized-test method parameters.
  • Each retained item MUST carry a KEEP:<id>:<reason> tag and be recorded in the delivery report; items without tags are treated as redundant.
  • Each test method MUST provide unique value: cover a new branch/path, or add assertion differences.
  • If deleting a test method does not change line/branch coverage and has no assertion differences, MUST delete it.
  • Unless scenario requires otherwise, SHOULD use Mockito default return values instead of extra stubs.

• R14: boolean assertion hard gate

  • Boolean literal/boolean constant assertions MUST use assertTrue/assertFalse.
  • For boolean assertions where expected value is variable-driven (for example: parameter/local variable/field), MUST use assertThat(actual, is(expected)).
  • MUST NOT dispatch boolean assertions through control flow (for example if/else, switch, or ternary) only to choose between assertTrue and assertFalse.
  • MUST NOT use:
    • assertThat(<boolean expression>, is(true|false|Boolean.TRUE|Boolean.FALSE))
    • assertEquals(true|false|Boolean.TRUE|Boolean.FALSE, ...)
    • assertEquals(..., true|false|Boolean.TRUE|Boolean.FALSE)
  • MUST run one hard-gate scan after implementation and another before delivery; any hit means incomplete.

• R15: pre-delivery hard gates

  • R15-A (parameterization enforcement): if an R8 high-fit candidate exists, the corresponding tests MUST be parameterized with @ParameterizedTest(name = "{0}"), unless a valid KEEP exception is recorded.
  • R15-B (metadata accessor test ban): unless the user explicitly requests it in the current turn, tests targeting getType / getOrder / getTypeClass MUST NOT be added.
  • R15-C (scope mutation guard): test-generation tasks MUST NOT introduce new diffs under any src/main/ path.
  • R15-D (parameterized argument floor): each @ParameterizedTest MUST bind to @MethodSource providers that together contain at least 3 Arguments rows; otherwise it is a violation.
  • R15-E (parameterized name parameter): each @ParameterizedTest method MUST declare the first parameter exactly as final String name.
  • R15-F (parameterized switch ban): @ParameterizedTest method bodies MUST NOT contain switch statements.
  • R15-G (parameterized nested-type ban): when a file contains @ParameterizedTest, newly introduced diff lines MUST NOT add nested helper type declarations (class / interface / enum / record) inside the test class.
  • R15-H (boolean variable assertion style): for variable-driven boolean expectations, tests MUST assert with assertThat(actual, is(expected)), and MUST NOT use control-flow dispatch only to choose assertTrue/assertFalse.
  • R15-I (parameterized Consumer ban): files containing @ParameterizedTest MUST NOT introduce or retain Consumer-based scenario transport in parameterized method signatures or @MethodSource argument rows.
  • R15-J (assertion-backed target invocation): non-test helper methods and @MethodSource providers MUST NOT invoke target public methods; target public method invocations that contribute to coverage MUST be asserted in the same test method body.

Workflow

1. Read AGENTS.md and CODE_OF_CONDUCT.md, and record hard constraints for this round (R1).
   • Capture scope baseline once: git status --porcelain > /tmp/gen-ut-status-before.txt.
2. Parse target classes, related test classes, and input-blocked state (R10-INPUT_BLOCKED).
3. Resolve <ResolvedTestClass>, <ResolvedTestFileSet>, <ResolvedTestModules>, and record pom.xml evidence (R3).
4. Run a Baseline quality summary using the bundled baseline script unless equivalent evidence was just produced in the same turn.
   • Use the baseline summary to identify current branch-miss lines, existing R15 risks, and likely R8-CANDIDATES before editing.
   • SHOULD fix deterministic precheck warnings from the baseline summary before the first standalone target-test run; these warnings are advisory only and do not replace final checkstyle / spotless / hard-gate verification.
5. Decide whether R12 is triggered; if not, output R4 branch mapping.
   • For parser / utility classes that return context or value objects, SHOULD align planned assertions with the returned object's public API before the first target-test run, to avoid internal-branch coverage assertions that do not match externally observable behavior.
6. Execute R8 parameterized optimization analysis, output R8-CANDIDATES, and apply required refactoring.
7. Execute R9 dead-code checks and record evidence.
8. Complete test implementation or extension according to R2-R7.
9. Perform necessity trimming and coverage re-verification according to R13.
10. After each edit batch, SHOULD run one lightweight precheck pass before expensive verification when signatures or parameterized-test structure changed.
    • Recommended command: python3 scripts/scan_quality_rules.py --precheck-only <ResolvedTestFileSet>.
    • This pass is advisory and deterministic; it may fail fast on early style issues such as missing final on test-method parameters, missing @MethodSource, too-few Arguments rows, or an invalid first parameter for parameterized tests, but it does not replace formal R14 / R15 / checkstyle verification.
11. After each edit batch, recompute the Verification snapshot digest; during in-scope repair loops, prefer target test + one consolidated hard-gate scan as the minimal verification required by R11.
    • After any standalone target-test command succeeds, SHOULD persist the digest through scripts/verification_gate_state.py mark-gate-green --gate target-test.
12. Run final verification commands and handle failures by R11.
    • Independent final gates (coverage, checkstyle, spotless, consolidated hard-gate scan) SHOULD run in parallel when the environment allows; otherwise serialize them.
    • Prefer the bundled scripts/run_quality_gates.py runner so independent gates share one orchestration entry and can reuse gate-level green results from Gate reuse state.
    • If scripts/verification_gate_state.py match-gate-green --gate target-test reports a match for the current <ResolvedTestFileSet>, and the final coverage command re-executes tests on that same digest, MAY skip an extra standalone target-test rerun before delivery.
    • A previously green coverage gate MAY be reused for the same digest; checkstyle and spotless SHOULD still execute for the current module scope.
    • The consolidated hard-gate scan MUST be executed twice to satisfy R14: once after implementation stabilizes and once immediately before delivery. Only the earlier scan may be reused for diagnostics; the delivery scan must execute again.
13. Decide status by R10 after verification; if status is R10-D, return to Step 5 and continue.
14. Before final response, run a second R10 status decision and output R10=<state> with rule-to-evidence mapping.

Verification and Commands

Flag presets:

• Module input provided:
  • <TestModuleFlags> = -pl <module>
  • <GateModuleFlags> = -pl <module>
• Module input not provided:
  • <TestModuleFlags> = -pl <ResolvedTestModules>
  • <GateModuleFlags> = -pl <ResolvedTestModules>
  • <FallbackGateModuleFlags> = <GateModuleFlags> -am (for troubleshooting missing cross-module dependencies only; does not change R3 and R10).

0. Baseline quality summary (recommended before editing):

python3 scripts/collect_quality_baseline.py --workdir <RepoRoot> \
  --coverage-command "./mvnw <GateModuleFlags> -DskipITs -Dsurefire.useManifestOnlyJar=false -Dtest=<ResolvedTestClass> -DfailIfNoTests=true -Dsurefire.failIfNoSpecifiedTests=false -Djacoco.skip=false -Djacoco.append=false -Djacoco.destFile=/tmp/gen-ut-baseline.exec test jacoco:report -Djacoco.dataFile=/tmp/gen-ut-baseline.exec" \
  --jacoco-xml-path <JacocoXmlPath> \
  --target-classes <ResolvedTargetClasses> \
  --baseline-before /tmp/gen-ut-status-before.txt \
  <ResolvedTestFileSet>

The baseline script reuses scan_quality_rules.py diagnostics and prints current coverage plus branch-miss lines for each target class. It also prints deterministic non-blocking precheck warnings for high-frequency style failures such as missing final on test-method parameters or obvious parameterized-test structure issues; these warnings are for early repair only and do not replace formal gates.

0.1 Lightweight precheck pass (recommended after structural edits and before the next standalone target-test):

python3 scripts/scan_quality_rules.py --precheck-only <ResolvedTestFileSet>

This mode is intentionally narrower than the consolidated hard-gate scan. It exists only to catch deterministic early-fix issues cheaply and MUST NOT be used as a replacement for final R14, R15, checkstyle, or spotless verification.

1. Target tests:

./mvnw <TestModuleFlags> -DskipITs -Dspotless.skip=true -Dtest=<ResolvedTestClass> -DfailIfNoTests=true -Dsurefire.failIfNoSpecifiedTests=false test

After a green standalone target-test command, record the digest:

python3 scripts/verification_gate_state.py mark-gate-green --state-file /tmp/gen-ut-gate-state.json --gate target-test <ResolvedTestFileSet>

1.1 Verification snapshot digest:

python3 scripts/verification_gate_state.py digest <ResolvedTestFileSet>

1.2 Latest green target-test digest reuse check:

python3 scripts/verification_gate_state.py match-gate-green --state-file /tmp/gen-ut-gate-state.json --gate target-test <ResolvedTestFileSet>

2. Coverage:

./mvnw <GateModuleFlags> -DskipITs -Djacoco.skip=false test jacoco:report jacoco:check@jacoco-check -Pcoverage-check

If the module does not define jacoco-check@jacoco-check:

./mvnw <GateModuleFlags> -DskipITs -Djacoco.skip=false test jacoco:report

After a green standalone coverage command, the digest may be recorded for reuse:

python3 scripts/verification_gate_state.py mark-gate-green --state-file /tmp/gen-ut-gate-state.json --gate coverage <ResolvedTestFileSet>

2.1 Target-class coverage hard gate (default target 100 unless explicitly lowered, aggregated over Target-class coverage scope):

bash -lc '
python3 - <JacocoXmlPath> <TargetRatioPercent> <ResolvedTargetClasses> <<'"'"'PY'"'"'
import sys
import xml.etree.ElementTree as ET
xml_path, target = sys.argv[1], float(sys.argv[2])
target_classes = [each.strip() for each in sys.argv[3].split(",") if each.strip()]
if not target_classes:
    print("[R10] empty target class list")
    sys.exit(1)
all_classes = list(ET.parse(xml_path).getroot().iter("class"))
all_ok = True
for fqcn in target_classes:
    class_name = fqcn.replace(".", "/")
    matched_nodes = [each for each in all_classes if each.get("name") == class_name or each.get("name", "").startswith(class_name + "$")]
    if not matched_nodes:
        print(f"[R10] class not found in jacoco.xml: {fqcn}")
        all_ok = False
        continue
    for counter_type in ("CLASS", "LINE", "BRANCH"):
        covered = 0
        missed = 0
        found_counter = False
        for each in matched_nodes:
            counter = next((c for c in each.findall("counter") if c.get("type") == counter_type), None)
            if counter is None:
                continue
            found_counter = True
            covered += int(counter.get("covered"))
            missed += int(counter.get("missed"))
        if not found_counter:
            print(f"[R10] missing {counter_type} counter for {fqcn}")
            all_ok = False
            continue
        total = covered + missed
        ratio = 100.0 if total == 0 else covered * 100.0 / total
        print(f"[R10] {fqcn} (+inner) {counter_type} covered={covered} missed={missed} ratio={ratio:.2f}%")
        if ratio + 1e-9 < target:
            print(f"[R10] {fqcn} (+inner) {counter_type} ratio {ratio:.2f}% < target {target:.2f}%")
            all_ok = False
if not all_ok:
    sys.exit(1)
PY
'

3. Checkstyle:

./mvnw <GateModuleFlags> -Pcheck checkstyle:check -DskipTests

4. Spotless:

./mvnw <GateModuleFlags> -Pcheck spotless:check -DskipTests

If missing cross-module dependencies occur, rerun the gate command above once with <FallbackGateModuleFlags> and record the trigger reason and result.

4.1 Unified final-gate runner (recommended):

python3 scripts/run_quality_gates.py --workdir <RepoRoot> \
  --state-file /tmp/gen-ut-gate-state.json \
  --tracked-path <ResolvedTestFileSet> \
  --reuse-gate coverage \
  --record-gate coverage \
  --record-gate hard-gate=rule-scan \
  --gate coverage="./mvnw <GateModuleFlags> -DskipITs -Djacoco.skip=false test jacoco:report" \
  --gate checkstyle="./mvnw <GateModuleFlags> -Pcheck checkstyle:check -DskipTests" \
  --gate spotless="./mvnw <GateModuleFlags> -Pcheck spotless:check -DskipTests" \
  --gate hard-gate="python3 scripts/scan_quality_rules.py --baseline-before /tmp/gen-ut-status-before.txt <ResolvedTestFileSet>"

If the environment cannot or should not parallelize, rerun the same command with --serial. Coverage still remains the authoritative source for target-class counters, and the runner does not relax any gate.

5. Consolidated hard-gate scan (R8, R14, R15-A/B/C/D/E/F/G/H/I/J):

python3 scripts/scan_quality_rules.py --baseline-before /tmp/gen-ut-status-before.txt <ResolvedTestFileSet>

If the user explicitly requested metadata accessor tests in the current turn:

python3 scripts/scan_quality_rules.py --allow-metadata-accessor-tests --baseline-before /tmp/gen-ut-status-before.txt <ResolvedTestFileSet>

The script consolidates repeated file parsing and git-diff inspection without changing rule accuracy. It also evaluates R15-C by comparing the current git status against /tmp/gen-ut-status-before.txt. For machine-readable automation or quick summaries, the script also supports:

python3 scripts/scan_quality_rules.py --json --baseline-before /tmp/gen-ut-status-before.txt <ResolvedTestFileSet>
python3 scripts/scan_quality_rules.py --summary-only --baseline-before /tmp/gen-ut-status-before.txt <ResolvedTestFileSet>

6. Scope validation:

git diff --name-only

Final Output Requirements

• MUST include a status line R10=<state>.
• MUST include aggregated class-level coverage evidence for each class in <ResolvedTargetClasses> over the Target-class coverage scope (CLASS/LINE/BRANCH counters and ratios).
• MUST include R8-CANDIDATES output (candidate set, counts, and per-candidate decision evidence).
• MUST include executed commands and exit codes.
• If R10 is not R10-A, MUST explicitly mark the task as not completed and provide blocking reason plus next action.
• MUST NOT use completion wording when R10 is R10-D.

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