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{"type":"item.completed","item":{"id":"item_0","type":"agent_message","text":"=== BEGIN ARTIFACT FEATURE-Type-and-Numeric-Builtins.md ===\n# FEATURE: Type and Numeric Builtins\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Define jq type inspection, length, conversion, numeric predicates, and mathematical builtins. |\n| Depends On  | FEATURE-Slices-and-Iteration.md, FEATURE-Value-Model.md |\n| Provides    | type, length, utf8bytelength, numeric predicates, tonumber, tostring, arithmetic math builtins |\n| Consumes    | jq value model, field and index access |\n\n## Questions\n\n- None.\n\n## Intent\n\nThis capability supplies jq's standard type and numeric primitives using Python's standard library. It preserves jq truth about value kinds, Unicode byte lengths, numeric conversion, special values, and mathematical operations.\n\n## Behavior\n\n- `type` returns jq's six value-type names.\n- `length` handles null, strings, arrays, objects, and numbers according to jq semantics and rejects booleans.\n- `utf8bytelength` counts UTF-8 bytes for strings and rejects other types.\n- `tonumber`, `toboolean`, and `tostring` perform jq-compatible conversions.\n- `nan`, `infinite`, `isnan`, `isinfinite`, `isfinite`, and `isnormal` support special numeric values.\n- Standard-library math functions required by the corpus are exposed with jq generator semantics.\n- Numeric equality and serialization remain compatible with the literal-aware value model.\n\n## Programmatic Acceptance\n\n=== AC value-004-conformance ===\nIntent: The authoritative corpus slice covering type, length, numeric predicates, conversion, and math builtins executes and passes.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", \"length|type|sqrt|floor|tonumber\", \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0 and summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC value-004-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Use only Python standard-library facilities.\n- Do not silently coerce booleans into numbers.\n- Preserve jq's distinction between numeric values and boolean values.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Arithmetic-Operators.md ===\n# FEATURE: Arithmetic Operators\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Define jq arithmetic, structural combination, repetition, splitting, and negation operators. |\n| Depends On  | FEATURE-Type-and-Numeric-Builtins.md |\n| Provides    | plus, minus, multiply, divide, modulo, negation, recursive object merge, string repetition and splitting |\n| Consumes    | type and numeric builtins, jq generator evaluation |\n\n## Questions\n\n- None.\n\n## Intent\n\nArithmetic operators apply jq's type-directed operations while preserving generator Cartesian products, immutable values, and runtime error behavior.\n\n## Behavior\n\n- Numeric operators perform arithmetic with jq-compatible numeric handling.\n- `+` combines numbers, arrays, strings, objects, and null as specified.\n- `-` subtracts numbers or removes matching array elements.\n- `*` supports numeric multiplication, string repetition, and recursive object merge.\n- `/` supports numeric division and string splitting.\n- `%` performs numeric remainder.\n- Unary negation applies only to numbers.\n- Division, remainder, invalid combinations, and excessive string repetition raise runtime errors with exit status 5 when uncaught.\n\n## Programmatic Acceptance\n\n=== AC flow-001-conformance ===\nIntent: The authoritative corpus slice covering arithmetic and structural operators executes and passes.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", r\"\\+|\\-|\\*|/|%\", \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0 and summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC flow-001-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Operators must preserve output order and multiplicity.\n- Values remain immutable; assignment semantics are outside this capability.\n- Do not implement structural operations through implicit Python type coercion.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Boolean-and-Alternative-Operators.md ===\n# FEATURE: Boolean and Alternative Operators\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Define jq boolean, negation, defined-or, and defined-or assignment semantics. |\n| Depends On  | FEATURE-Arithmetic-Operators.md, FEATURE-Truthiness-and-Comparison.md |\n| Provides    | and, or, not, defined-or, defined-or assignment |\n| Consumes    | jq truthiness, comparison, and generator evaluation |\n\n## Questions\n\n- None.\n\n## Intent\n\nThis capability implements jq's boolean and fallback operators with false/null truthiness, generator-aware output, and short-circuit behavior.\n\n## Behavior\n\n- Only `false` and `null` are falsey.\n- `and` and `or` produce boolean results for each relevant generator combination.\n- `not` produces the inverse truth value.\n- `//` emits non-false/non-null left outputs, otherwise all right outputs.\n- `//=` updates defined-or paths while preserving immutable assignment behavior.\n- Boolean and alternative expressions preserve generator ordering and short-circuit errors where jq requires them.\n\n## Programmatic Acceptance\n\n=== AC flow-002-conformance ===\nIntent: The authoritative corpus slice covering boolean and alternative operators executes and passes.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", \"and|or|not|//\", \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0 and summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC flow-002-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Do not use Python truthiness in place of jq truthiness.\n- `//` must not be reduced to ordinary boolean `or`.\n- Preserve generator multiplicity and fallback evaluation semantics.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Conditionals-and-Exceptions.md ===\n# FEATURE: Conditionals and Exceptions\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Define jq conditional branching, optional evaluation, try/catch, and runtime error propagation. |\n| Depends On  | FEATURE-Boolean-and-Alternative-Operators.md, FEATURE-Error-and-Optional-Evaluation.md |\n| Provides    | if, elif, else, try, catch, optional branches |\n| Consumes    | boolean and alternative operators, generator evaluation, runtime diagnostics |\n\n## Questions\n\n- None.\n\n## Intent\n\nThis capability controls branching and exception flow across jq's ordered generator streams.\n\n## Behavior\n\n- `if`, `elif`, and `else` evaluate branches according to jq false/null truthiness.\n- Multiple condition outputs independently select branches.\n- An omitted `else` behaves as the identity filter.\n- `try EXP catch HANDLER` catches runtime errors and evaluates the handler with the error value.\n- `try EXP` suppresses errors as `empty`.\n- The `?` suffix provides optional evaluation.\n- Outputs emitted before an uncaught runtime error remain on stdout and the process exits 5.\n\n## Programmatic Acceptance\n\n=== AC flow-003-conformance ===\nIntent: The authoritative corpus slice covering conditionals, try/catch, and optional evaluation executes and passes.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", r\"if |try |\\?\", \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0 and summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC flow-003-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Compile errors must remain distinct from runtime errors.\n- Error messages are diagnostic only; acceptance relies on exit status and structured outputs.\n- Preserve partial output before an uncaught runtime failure.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Labels-and-Breaks.md ===\n# FEATURE: Labels and Breaks\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Define lexically scoped jq labels and break expressions for terminating generators. |\n| Depends On  | FEATURE-Conditionals-and-Exceptions.md |\n| Provides    | label and break |\n| Consumes    | conditionals and exception flow, ordered generator evaluation |\n\n## Questions\n\n- None.\n\n## Intent\n\nThis capability implements lexical control transfer from `break $label` to its matching visible `label $label`.\n\n## Behavior\n\n- `label $name | EXP` establishes a lexical break target.\n- `break $name` terminates the nearest matching labeled generator and produces no further values from it.\n- Breaks do not escape their lexical label or affect unrelated generators.\n- A break without a visible matching label is rejected at compile time with exit status 3.\n- Labels preserve output ordering for values produced before the break.\n\n## Programmatic Acceptance\n\n=== AC flow-004-conformance ===\nIntent: The authoritative corpus slice covering labels, breaks, and invalid-label compilation executes and passes.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", \"label|break\", \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0 and summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC flow-004-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Break targets are lexical, not dynamically searched.\n- A break must not leak values after its matching label terminates.\n- Invalid labels must be compile failures, never runtime failures.\n=== END ARTIFACT ==="}}
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