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{"type":"item.completed","item":{"id":"item_0","type":"agent_message","text":"=== BEGIN ARTIFACT FEATURE-Type-And-Numeric-Primitives.md ===\n# FEATURE: Type and Numeric Primitives\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Provides jq type inspection, numeric conversion, measurement, and mathematical primitives. |\n| Depends On  | FEATURE-Value-Model.md, FEATURE-Field-And-Index-Access.md, FEATURE-Truthiness-And-Comparison.md |\n| Provides    | type, length, utf8bytelength, tonumber, toboolean, numeric predicates, floor, sqrt, math primitives |\n| Consumes    | jq values, comparison semantics |\n\n## Questions\n\n- None.\n\n## Intent\n\nImplement jq's type and numeric builtins using Python's standard library. Support type inspection, lengths, UTF-8 byte counts, numeric and boolean conversion, finite/NaN predicates, rounding, square roots, and the mathematical functions exercised by the corpus.\n\nNumbers must preserve jq-compatible equality and serialization behavior, including NaN and infinities. Invalid input types and conversions raise jq runtime errors.\n\n## Behavior\n\n- `type` returns jq's six type names.\n- `length` handles null, strings, arrays, objects, and numbers; booleans are invalid.\n- `utf8bytelength` accepts strings and counts UTF-8 bytes.\n- `tonumber` and `toboolean` preserve existing values and convert valid strings.\n- Numeric predicates distinguish finite, infinite, NaN, and normal values.\n- `floor`, `sqrt`, and required standard math functions follow jq numeric semantics.\n\n## Programmatic Acceptance\n\n=== AC value-004-conformance ===\nIntent: The type and numeric primitive implementation passes every selected conformance case containing the owned numeric and type syntax.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"length|type|sqrt|floor|tonumber\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--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\nassert 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 invalid jq values.\n- Preserve generator ordering and runtime error behavior.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Arithmetic-And-Structural-Operators.md ===\n# FEATURE: Arithmetic and Structural Operators\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Implements jq arithmetic, structural combination, repetition, splitting, and negation operators. |\n| Depends On  | FEATURE-Type-And-Numeric-Primitives.md, FEATURE-Composition-And-Cartesian-Evaluation.md, FEATURE-Errors-And-Optional-Evaluation.md |\n| Provides    | +, -, *, /, %, unary negation, recursive object merge, string repetition and splitting |\n| Consumes    | jq value model, generator evaluation, comparison semantics |\n\n## Questions\n\n- None.\n\n## Intent\n\nImplement jq's typed arithmetic and structural operators. Operators evaluate both operands as filters over the same input and preserve Cartesian generator behavior.\n\n## Behavior\n\n- Numbers use jq-compatible arithmetic.\n- Arrays concatenate with `+` and subtract matching elements with `-`.\n- Strings concatenate with `+`, repeat with numeric `*`, and split with `/`.\n- Objects merge with `+`; `*` recursively merges nested objects.\n- `null` is additive with any value.\n- Division and remainder by zero raise runtime errors.\n- Unary negation accepts numbers only and preserves partial output semantics.\n\n## Programmatic Acceptance\n\n=== AC flow-001-conformance ===\nIntent: The arithmetic and structural operator implementation passes every selected conformance case containing the owned operators.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"\\+|\\-|\\*|/|%\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--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\nassert 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- Do not perform implicit cross-type conversions.\n- Preserve operator precedence, generator multiplicity, and runtime errors.\n- Do not shell out to another jq implementation.\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 | Implements jq Boolean operators, truthiness-aware alternatives, and defined-or assignment. |\n| Depends On  | FEATURE-Truthiness-And-Comparison.md, FEATURE-Arithmetic-And-Structural-Operators.md |\n| Provides    | and, or, not, //, //= |\n| Consumes    | jq truthiness, generator core, arithmetic operators |\n\n## Questions\n\n- None.\n\n## Intent\n\nImplement strict Boolean operators and jq's value-selection alternative operators. Boolean operators produce Boolean values, while `//` selects non-null and non-false generator outputs.\n\n## Behavior\n\n- Only `false` and `null` are falsey.\n- `and`, `or`, and `not` produce Boolean results with generator-valued operands evaluated according to jq semantics.\n- `a // b` emits all non-false, non-null values from `a`; otherwise it evaluates `b`.\n- `//=` updates defined-or paths using jq assignment semantics.\n- Short-circuiting must prevent unnecessary error-producing branches where jq requires it.\n\n## Programmatic Acceptance\n\n=== AC flow-002-conformance ===\nIntent: The Boolean and alternative operator implementation passes every selected conformance case containing the owned operators.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"and|or|not|//\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--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\nassert 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 treat empty strings, arrays, or objects as falsey.\n- Preserve generator multiplicity and alternative fallback semantics.\n- Do not evaluate fallback branches when jq semantics select the left stream.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Conditionals-And-Exception-Flow.md ===\n# FEATURE: Conditionals and Exception Flow\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Implements jq conditional branching, try/catch handling, and optional error suppression. |\n| Depends On  | FEATURE-Errors-And-Optional-Evaluation.md, FEATURE-Truthiness-And-Comparison.md, FEATURE-Boolean-And-Alternative-Operators.md |\n| Provides    | if/then/elif/else/end, try/catch, optional filter operator |\n| Consumes    | jq truthiness, runtime error flow, generator evaluation |\n\n## Questions\n\n- None.\n\n## Intent\n\nImplement control flow over jq generator streams. Conditions may produce multiple values, and each truthy or falsey result selects its corresponding branch independently.\n\n## Behavior\n\n- `if A then B else C end` evaluates branches for each output of `A`.\n- Missing `else` defaults to identity.\n- `elif` chains preserve jq branch ordering and fallback behavior.\n- `try EXP catch HANDLER` catches runtime errors and evaluates the handler with the error value.\n- `try EXP` suppresses errors and produces no replacement output.\n- `EXP?` is equivalent to `try EXP`.\n- Outputs produced before an uncaught runtime error remain available to the process boundary.\n\n## Programmatic Acceptance\n\n=== AC flow-003-conformance ===\nIntent: The conditional and exception-flow implementation passes every selected conformance case containing the owned syntax.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"if |try |\\?\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--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\nassert 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- Preserve partial output before runtime failure.\n- Catch only runtime errors within the protected expression.\n- Keep compile failures distinct from runtime failures.\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 | Implements lexically scoped labels and generator termination through break expressions. |\n| Depends On  | FEATURE-Declarations-And-Control-Syntax.md, FEATURE-Errors-And-Optional-Evaluation.md, FEATURE-Conditionals-And-Exception-Flow.md |\n| Provides    | label, break |\n| Consumes    | parsed declarations, runtime error flow, generator core |\n\n## Questions\n\n- None.\n\n## Intent\n\nImplement jq's lexical `label $name | ... break $name ...` control mechanism. A break terminates the matching enclosing generator and behaves as though that label expression produced `empty`.\n\n## Behavior\n\n- Labels bind only within their lexical body.\n- `break $name` terminates the nearest visible matching label.\n- Outputs produced before the break are retained in order.\n- Breaks do not leak into unrelated generators or labels.\n- A break without a visible label is rejected at compile time.\n- Labels and breaks work inside iteration, reductions, conditionals, and nested pipelines.\n\n## Programmatic Acceptance\n\n=== AC flow-004-conformance ===\nIntent: The labels and breaks implementation passes every selected conformance case containing label or break syntax.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"label|break\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--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\nassert 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- Enforce lexical visibility during compilation.\n- Terminate only the matching label scope.\n- Preserve outputs emitted before termination and generator ordering.\n=== END ARTIFACT ==="}}
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