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{"type":"item.completed","item":{"id":"item_0","type":"agent_message","text":"=== BEGIN ARTIFACT FEATURE-FLOW-005.md ===\n# FEATURE: Reductions and Iteration Controls\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260822 V1 |\n| Description | Provides jq reductions and generator iteration-control builtins. |\n| Depends On | ARCHITECTURE.md, FEATURE-FLOW-004.md |\n| Provides | reduce, foreach, range, limit, skip, first, last, nth |\n| Consumes | ordered generator evaluator, lexical labels, variable bindings |\n\n## Questions\n\n- None.\n\n## Workflow\n\nReduction and iteration controls consume ordered generator streams and preserve jq's state, ordering, Cartesian argument, backtracking, and short-circuit semantics.\n\n- `reduce EXP as $var (INIT; UPDATE)` accumulates each generated value.\n- `foreach EXP as $var (INIT; UPDATE; EXTRACT)` emits intermediate extracted values.\n- `range` supports one, two, and three argument forms.\n- `limit`, `skip`, `first`, `last`, and `nth` operate on generated streams.\n- Invalid negative counts for `limit`, `skip`, and `nth` raise runtime errors.\n\n## Programmatic Acceptance\n\n=== AC flow-005-conformance ===\nIntent: The executable passes the authoritative conformance cases exercising reductions and iteration controls.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nSELECT = r\"reduce|foreach|limit|skip|nth|first|last\"\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)\ntally = report[\"summary\"]\nassert sum(tally.values()) > 0\nassert tally[\"fail\"] == 0 and tally[\"error\"] == 0\nassert result.returncode == 0\n=== END AC flow-005-conformance ===\n\n## User Acceptance\n\n- Reduction and iteration filters preserve output ordering and generator multiplicity.\n\n## Guardrails\n\n- Do not replace generator evaluation with single-value evaluation.\n- Preserve runtime errors and partial output semantics.\n\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-FLOW-006.md ===\n# FEATURE: Recursive Generator Primitives\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260822 V1 |\n| Description | Provides jq recursive generator and recursive-descent primitives. |\n| Depends On | ARCHITECTURE.md, FEATURE-FLOW-005.md |\n| Provides | while, until, repeat, recurse, recursive descent |\n| Consumes | ordered generator evaluator, runtime error model |\n\n## Questions\n\n- None.\n\n## Workflow\n\nRecursive generators repeatedly apply filters while preserving jq stream order and termination behavior.\n\n- `while(cond; update)` emits each qualifying value before continuing.\n- `until(cond; next)` continues until its condition succeeds.\n- `repeat(exp)` continues until the expression raises an error.\n- `recurse` emits the current value and recursively generated descendants.\n- `..` provides recursive descent equivalent to zero-argument `recurse`.\n\n## Programmatic Acceptance\n\n=== AC flow-006-conformance ===\nIntent: The executable passes the authoritative conformance cases exercising recursive generators and recursive descent.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nSELECT = r\"while|until|recurse|repeat\"\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)\ntally = report[\"summary\"]\nassert sum(tally.values()) > 0\nassert tally[\"fail\"] == 0 and tally[\"error\"] == 0\nassert result.returncode == 0\n=== END AC flow-006-conformance ===\n\n## User Acceptance\n\n- Recursive filters terminate and preserve the documented depth-first output order.\n\n## Guardrails\n\n- Do not introduce incorrect termination for generators that intentionally produce repeated values.\n- Preserve runtime error behavior for `repeat`.\n\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-FUNC-001.md ===\n# FEATURE: Lexical Variable Bindings\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260822 V1 |\n| Description | Provides jq lexical value bindings and variable lookup. |\n| Depends On | ARCHITECTURE.md, FEATURE-FLOW-006.md |\n| Provides | as bindings, variable lookup, lexical scope, shadowing |\n| Consumes | generator evaluator, parser AST |\n\n## Questions\n\n- None.\n\n## Workflow\n\nBindings evaluate the left-hand filter as a generator, bind each produced value lexically, and run the remainder of the expression with the original input and the active binding environment.\n\n- `EXP as $name | REST` supports multiple generated bindings.\n- Bindings are immutable and lexically scoped.\n- Nested bindings may shadow outer names without mutating them.\n- Keyword identifiers may be used as binding names.\n- Array and object patterns bind missing members as `null`.\n\n## Programmatic Acceptance\n\n=== AC func-001-conformance ===\nIntent: The executable passes the authoritative conformance cases exercising lexical bindings and variable lookup.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nSELECT = r\" as \\$|\\$[A-Za-z]\"\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)\ntally = report[\"summary\"]\nassert sum(tally.values()) > 0\nassert tally[\"fail\"] == 0 and tally[\"error\"] == 0\nassert result.returncode == 0\n=== END AC func-001-conformance ===\n\n## User Acceptance\n\n- Variable values remain available only within their lexical scope and preserve generator backtracking.\n\n## Guardrails\n\n- Do not implement bindings as mutable global variables.\n- Do not leak nested or out-of-scope bindings.\n\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-FUNC-002.md ===\n# FEATURE: Function Parameters\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260822 V1 |\n| Description | Provides jq filter parameters, value parameters, and multi-arity calls. |\n| Depends On | ARCHITECTURE.md, FEATURE-FUNC-001.md |\n| Provides | filter parameters, value parameters, function arities, Cartesian function calls |\n| Consumes | lexical variable bindings, generator evaluator |\n\n## Questions\n\n- None.\n\n## Workflow\n\nUser-defined functions accept filter parameters as reusable generators and value parameters as captured values.\n\n- Regular identifiers in parameter lists represent filter parameters.\n- `$`-prefixed parameters represent value parameters.\n- Arguments preserve jq's generator and Cartesian-product semantics.\n- Functions support multiple arities and repeated parameter invocation.\n- Closures retain the lexical environment active at definition and call sites.\n\n## Programmatic Acceptance\n\n=== AC func-002-conformance ===\nIntent: The executable passes the authoritative conformance cases exercising filter and value function parameters.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nSELECT = r\"def .*\\(\"\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)\ntally = report[\"summary\"]\nassert sum(tally.values()) > 0\nassert tally[\"fail\"] == 0 and tally[\"error\"] == 0\nassert result.returncode == 0\n=== END AC func-002-conformance ===\n\n## User Acceptance\n\n- Function arguments behave as filters or values according to their declaration form.\n\n## Guardrails\n\n- Do not eagerly collapse filter arguments to one value.\n- Preserve repeated invocation and Cartesian output behavior.\n\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-FUNC-003.md ===\n# FEATURE: Function Definitions and Recursion\n\n| Field | Value |\n|-------------|-------|\n| Version | 20260822 V1 |\n| Description | Provides jq function declarations, lexical function scope, and recursion. |\n| Depends On | ARCHITECTURE.md, FEATURE-FUNC-002.md |\n| Provides | def declarations, lexical function scope, redefinition, recursion, forward/self references |\n| Consumes | function parameters, lexical variable bindings |\n\n## Questions\n\n- None.\n\n## Workflow\n\nFunction definitions introduce named filters into lexical scope and support recursive evaluation.\n\n- `def name: FILTER;` defines a zero-arity function.\n- Parameterized definitions support filter and value parameters.\n- Definitions are resolved lexically and may refer to themselves recursively.\n- Redefinition replaces only the matching arity for subsequent references.\n- Function calls preserve generator ordering, closures, and backtracking.\n\n## Programmatic Acceptance\n\n=== AC func-003-conformance ===\nIntent: The executable passes the authoritative conformance cases exercising function definitions, scope, redefinition, and recursion.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nSELECT = r\"def \"\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)\ntally = report[\"summary\"]\nassert sum(tally.values()) > 0\nassert tally[\"fail\"] == 0 and tally[\"error\"] == 0\nassert result.returncode == 0\n=== END AC func-003-conformance ===\n\n## User Acceptance\n\n- Recursive and redefined functions resolve according to jq's lexical scoping rules.\n\n## Guardrails\n\n- Do not resolve function names through mutable global state.\n- Preserve self-reference, recursion, and generator backtracking.\n\n=== END ARTIFACT ==="}}
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Run artifact