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{"type":"item.completed","item":{"id":"item_0","type":"agent_message","text":"=== BEGIN ARTIFACT TOPOLOGY.md ===\n# TOPOLOGY: jq\n\n## story architecture\nsummary:      Define the standalone interpreter architecture and module boundaries.\ntype:         foundational\nkind:         capability\nphase:        1\nimplements:   ARCHITECTURE.md\nstack:        common.md, python.md\nprovides:     interpreter module boundaries, executable boundary\nacceptance:   yes\ninstructions: |\n  Establish the Python standard-library architecture, executable boundary, lexer/parser/evaluator\n  ownership, immutable value and path-operation boundaries, and diagnostic flow. Do not add\n  third-party dependencies or shell out to another jq implementation.\nscope:        blueprint\n\n## story exec-001\nsummary:      Implement the executable jq entry point.\ntype:         service\nkind:         capability\nphase:        1\nimplements:   FEATURE-Executable-Entry-Point.md\ncovers:       EXEC-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/INSTRUCTIONS.md, sources/run_conformance.py\nprovides:     ./jq -c program execution\nconsumes:     interpreter parser and evaluator\ndepends:      architecture\nacceptance:   yes\ninstructions: |\n  Deliver an executable named jq at the application root. Accept the exercised -c program\n  interface, read JSON input from stdin, evaluate the filter, and emit each result as one compact\n  JSON value per line. Gate with the EXEC-001 selector from STORY_GUIDANCE.json, executing cases.\nscope:        target\n\n## story exec-002\nsummary:      Implement jq process exit and diagnostic behavior.\ntype:         service\nkind:         capability\nphase:        1\nimplements:   FEATURE-Process-Contract.md\ncovers:       EXEC-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/INSTRUCTIONS.md, sources/run_conformance.py\nprovides:     compile exit 3, runtime exit 5, success exit 0, stderr diagnostics\nconsumes:     ./jq -c program execution\ndepends:      exec-001\nacceptance:   yes\ninstructions: |\n  Keep compilation failures distinct from runtime failures and preserve partial stdout before a\n  runtime error. Send diagnostics only to stderr. Gate with the EXEC-002-related corpus slice using\n  the runner's executing scoped mode.\nscope:        target\n\n## story exec-003\nsummary:      Implement JSON input, Unicode, numeric, and compact output handling.\ntype:         service\nkind:         capability\nphase:        1\nimplements:   FEATURE-Json-IO.md\ncovers:       EXEC-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq.test, sources/run_conformance.py\nprovides:     JSON stdin parsing, compact JSON serialization, ordered output stream\nconsumes:     ./jq -c program execution\ndepends:      exec-002\nacceptance:   yes\ninstructions: |\n  Support multiple JSON input values, Unicode escapes and characters, special numeric values\n  required by the corpus, structural output ordering, and one output value per line. Gate the\n  EXEC-003-related executing corpus slice.\nscope:        target\n\n## story parse-001\nsummary:      Implement jq lexical scanning.\ntype:         service\nkind:         capability\nphase:        2\nimplements:   FEATURE-Lexer.md\ncovers:       PARSE-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/lexer.l, sources/parser.y, sources/jq.test\nprovides:     jq tokenization\nconsumes:     interpreter executable boundary\ndepends:      exec-003\nacceptance:   yes\ninstructions: |\n  Implement lexical scanning for literals, identifiers, fields, bindings, keywords, operators,\n  delimiters, comments, formats, and interpolation markers according to sources/lexer.l. Gate\n  with the PARSE-001 executing selector.\nscope:        target\n\n## story parse-002\nsummary:      Implement literals, escapes, and string interpolation.\ntype:         service\nkind:         capability\nphase:        2\nimplements:   FEATURE-Strings-and-Interpolation-Parser.md\ncovers:       PARSE-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/lexer.l, sources/parser.y, sources/jq.test\nprovides:     JSON string literals, escapes, interpolation, format literals\nconsumes:     jq tokenization\ndepends:      parse-001\nacceptance:   yes\ninstructions: |\n  Parse JSON escapes, Unicode, formatted strings, and \\(expression) interpolation with generator\n  multiplicity preserved. Gate with the PARSE-002 executing selector.\nscope:        target\n\n## story parse-003\nsummary:      Implement the jq filter expression grammar.\ntype:         service\nkind:         capability\nphase:        2\nimplements:   FEATURE-Filter-Parser.md\ncovers:       PARSE-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/lexer.l, sources/jq.test\nprovides:     AST for pipes, commas, precedence, indexing, slices, arrays, objects, operators\nconsumes:     jq tokenization\ndepends:      parse-002\nacceptance:   yes\ninstructions: |\n  Implement expression parsing and precedence for pipes, commas, indexing, slicing, arrays,\n  objects, unary operators, binary operators, and optional expressions. Gate with the PARSE-003\n  executing selector.\nscope:        target\n\n## story parse-004\nsummary:      Implement declarations and control syntax parsing.\ntype:         service\nkind:         capability\nphase:        2\nimplements:   FEATURE-Declaration-Parser.md\ncovers:       PARSE-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/lexer.l, sources/jq.test\nprovides:     declarations, modules grammar, conditionals, exceptions, reductions, labels, bindings\nconsumes:     AST for filter expressions\ndepends:      parse-003\nacceptance:   yes\ninstructions: |\n  Parse def, module/include grammar, conditionals, try/catch, reductions, foreach, labels,\n  bindings, destructuring, and required rejection cases without loading excluded module fixtures.\n  Gate with the PARSE-004 executing selector.\nscope:        target\n\n## story core-001\nsummary:      Implement stream-valued filter evaluation.\ntype:         service\nkind:         capability\nphase:        3\nimplements:   FEATURE-Generator-Core.md\ncovers:       CORE-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     ordered generator evaluation, empty, iteration, range\nconsumes:     AST for filter expressions\ndepends:      parse-004\nacceptance:   yes\ninstructions: |\n  Evaluate every filter as an ordered generator supporting zero, one, or many outputs, backtracking,\n  identity, iteration, range, and empty. Gate with the CORE-001 executing selector.\nscope:        target\n\n## story core-002\nsummary:      Implement composition and Cartesian evaluation.\ntype:         service\nkind:         capability\nphase:        3\nimplements:   FEATURE-Composition.md\ncovers:       CORE-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     pipe, comma, argument Cartesian products, collection, object construction\nconsumes:     ordered generator evaluation\ndepends:      core-001\nacceptance:   yes\ninstructions: |\n  Implement generator composition, Cartesian argument evaluation, array collection, object\n  construction, and multiplicity/order semantics. Gate with the CORE-002 executing selector.\nscope:        target\n\n## story core-003\nsummary:      Implement empty, runtime errors, optional evaluation, and try.\ntype:         service\nkind:         capability\nphase:        3\nimplements:   FEATURE-Error-and-Optional-Evaluation.md\ncovers:       CORE-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     empty, error, runtime failure, optional operator, try/catch\nconsumes:     ordered generator evaluation\ndepends:      core-002\nacceptance:   yes\ninstructions: |\n  Preserve errors, suppression, try/catch behavior, optional operators, and output emitted before\n  runtime failure. Gate with the CORE-003 executing selector.\nscope:        target\n\n## story core-004\nsummary:      Implement jq truthiness, equality, and ordering.\ntype:         service\nkind:         capability\nphase:        3\nimplements:   FEATURE-Truthiness-and-Comparison.md\ncovers:       CORE-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     truthiness, equality, inequality, type ordering, comparisons\nconsumes:     ordered generator evaluation\ndepends:      core-003\nacceptance:   yes\ninstructions: |\n  Implement false/null truthiness, strict jq equality, numeric equivalence, and total ordering\n  across jq value types. Gate with the CORE-004 executing selector.\nscope:        target\n\n## story value-001\nsummary:      Implement the jq value model and special numbers.\ntype:         service\nkind:         capability\nphase:        4\nimplements:   FEATURE-Value-Model.md\ncovers:       VALUE-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     null, booleans, numbers, strings, arrays, objects, NaN, infinities\nconsumes:     truthiness, equality, and ordering\ndepends:      core-004\nacceptance:   yes\ninstructions: |\n  Represent jq values using only the standard library, preserving required literal-number\n  behavior and supporting NaN and infinities. Gate with the VALUE-001 executing selector.\nscope:        target\n\n## story value-002\nsummary:      Implement field and index access.\ntype:         service\nkind:         capability\nphase:        4\nimplements:   FEATURE-Accessors.md\ncovers:       VALUE-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     object fields, array indices, optional access, negative indices\nconsumes:     jq value model\ndepends:      value-001\nacceptance:   yes\ninstructions: |\n  Implement object-field access, array indexing, missing values, optional access, and negative\n  indices with jq error semantics. Gate with the VALUE-002 executing selector.\nscope:        target\n\n## story value-003\nsummary:      Implement slices and collection iteration.\ntype:         service\nkind:         capability\nphase:        4\nimplements:   FEATURE-Slices-and-Iteration.md\ncovers:       VALUE-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     array/string slices, array/object iteration, fractional bounds\nconsumes:     field and index access\ndepends:      value-002\nacceptance:   yes\ninstructions: |\n  Implement array and string slices, array/object iteration, optional iteration, fractional and\n  out-of-range bounds. Gate with the VALUE-003 executing selector.\nscope:        target\n\n## story value-004\nsummary:      Implement type, length, numeric predicates, and math primitives.\ntype:         service\nkind:         capability\nphase:        4\nimplements:   FEATURE-Type-and-Numeric-Builtins.md\ncovers:       VALUE-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     type, length, utf8bytelength, numeric predicates, conversion, arithmetic math\nconsumes:     jq value model, field and index access\ndepends:      value-003\nacceptance:   yes\ninstructions: |\n  Implement type and length behavior, UTF-8 byte length, numeric predicates, tonumber,\n  tostring-related conversion, arithmetic primitives, and required math functions. Gate with the\n  VALUE-004 executing selector.\nscope:        target\n\n## story flow-001\nsummary:      Implement arithmetic and structural operators.\ntype:         service\nkind:         capability\nphase:        5\nimplements:   FEATURE-Arithmetic-Operators.md\ncovers:       FLOW-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     plus, minus, multiply, divide, modulo, negation, recursive merge, repetition\nconsumes:     type and numeric builtins\ndepends:      value-004\nacceptance:   yes\ninstructions: |\n  Implement numeric, array, string, and object arithmetic; recursive object merge; string\n  repetition and splitting; unary negation and division errors. Gate with the FLOW-001 selector.\nscope:        target\n\n## story flow-002\nsummary:      Implement boolean and alternative operators.\ntype:         service\nkind:         capability\nphase:        5\nimplements:   FEATURE-Boolean-and-Alternative-Operators.md\ncovers:       FLOW-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     and, or, not, defined-or, defined-or assignment\nconsumes:     truthiness and generator evaluation\ndepends:      flow-001\nacceptance:   yes\ninstructions: |\n  Implement boolean operators, not, //, and //= with jq generator filtering and short-circuit\n  behavior. Gate with the FLOW-002 executing selector.\nscope:        target\n\n## story flow-003\nsummary:      Implement conditionals and exception flow.\ntype:         service\nkind:         capability\nphase:        5\nimplements:   FEATURE-Conditionals-and-Exceptions.md\ncovers:       FLOW-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/jq-manual.txt, sources/jq.test\nprovides:     if, elif, else, try, catch, optional branches\nconsumes:     boolean and alternative operators\ndepends:      flow-002\nacceptance:   yes\ninstructions: |\n  Implement branching over generator results, optional else behavior, and exception flow with\n  correct partial-output and backtracking semantics. Gate with the FLOW-003 executing selector.\nscope:        target\n\n## story flow-004\nsummary:      Implement lexical labels and breaks.\ntype:         service\nkind:         capability\nphase:        5\nimplements:   FEATURE-Labels-and-Breaks.md\ncovers:       FLOW-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/jq-manual.txt, sources/jq.test\nprovides:     label and break\nconsumes:     conditionals and exception flow\ndepends:      flow-003\nacceptance:   yes\ninstructions: |\n  Implement lexically scoped labels and breaks that terminate only the matching generator\n  context, including invalid-label compile behavior. Gate with the FLOW-004 executing selector.\nscope:        target\n\n## story flow-005\nsummary:      Implement reductions and iteration controls.\ntype:         service\nkind:         capability\nphase:        5\nimplements:   FEATURE-Reductions-and-Iteration-Control.md\ncovers:       FLOW-005\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     reduce, foreach, limit, skip, first, last, nth, range\nconsumes:     labels and breaks, generator evaluation\ndepends:      flow-004\nacceptance:   yes\ninstructions: |\n  Implement reduce and foreach state transitions plus limit, skip, first, last, nth, and\n  generator-preserving range behavior. Gate with the FLOW-005 executing selector.\nscope:        target\n\n## story flow-006\nsummary:      Implement recursive generators.\ntype:         service\nkind:         capability\nphase:        5\nimplements:   FEATURE-Recursive-Generators.md\ncovers:       FLOW-006\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     while, until, repeat, recurse, recursive descent\nconsumes:     reductions and iteration controls\ndepends:      flow-005\nacceptance:   yes\ninstructions: |\n  Implement while, until, repeat, recurse, recursive descent, termination, and generator\n  ordering without incorrect recursion cutoffs. Gate with the FLOW-006 executing selector.\nscope:        target\n\n## story func-001\nsummary:      Implement lexical variable bindings.\ntype:         service\nkind:         capability\nphase:        6\nimplements:   FEATURE-Variable-Bindings.md\ncovers:       FUNC-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/jq-manual.txt, sources/jq.test\nprovides:     as bindings, lexical scope, shadowing, keyword identifiers\nconsumes:     recursive generators\ndepends:      flow-006\nacceptance:   yes\ninstructions: |\n  Implement as bindings, nested lexical scope, shadowing, keyword names, and value lifetime.\n  Gate with the FUNC-001 executing selector.\nscope:        target\n\n## story func-002\nsummary:      Implement filter and value function parameters.\ntype:         service\nkind:         capability\nphase:        6\nimplements:   FEATURE-Function-Parameters.md\ncovers:       FUNC-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/jq-manual.txt, sources/jq.test\nprovides:     filter parameters, value parameters, multiple arities, Cartesian arguments\nconsumes:     lexical variable bindings\ndepends:      func-001\nacceptance:   yes\ninstructions: |\n  Implement user-defined filter and value parameters, multiple arities, closures, callback\n  evaluation, and Cartesian argument streams. Gate with the FUNC-002 executing selector.\nscope:        target\n\n## story func-003\nsummary:      Implement function definitions, scope, and recursion.\ntype:         service\nkind:         capability\nphase:        6\nimplements:   FEATURE-Function-Definitions.md\ncovers:       FUNC-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/jq-manual.txt, sources/jq.test\nprovides:     def, function redefinition, recursion, forward and self references\nconsumes:     function parameters\ndepends:      func-002\nacceptance:   yes\ninstructions: |\n  Implement definitions, lexical function scope, arity-specific redefinition, recursion, and\n  self/forward references as specified. Gate with the FUNC-003 executing selector.\nscope:        target\n\n## story func-004\nsummary:      Implement destructuring patterns and alternatives.\ntype:         service\nkind:         capability\nphase:        6\nimplements:   FEATURE-Destructuring.md\ncovers:       FUNC-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/parser.y, sources/jq-manual.txt, sources/jq.test\nprovides:     array/object patterns, missing bindings, ?// alternatives\nconsumes:     function definitions and lexical bindings\ndepends:      func-003\nacceptance:   yes\ninstructions: |\n  Implement array/object destructuring, missing bindings, ?// alternatives, fallback binding\n  behavior, and error-driven alternative selection. Gate with the FUNC-004 executing selector.\nscope:        target\n\n## story path-001\nsummary:      Implement path discovery and projection.\ntype:         service\nkind:         capability\nphase:        7\nimplements:   FEATURE-Path-Discovery.md\ncovers:       PATH-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     path, paths, pick, path projections\nconsumes:     destructuring and accessors\ndepends:      func-004\nacceptance:   yes\ninstructions: |\n  Implement exact and iterated path discovery, paths filtering, and pick projections while\n  preserving path ordering and invalid-path errors. Gate with the PATH-001 executing selector.\nscope:        target\n\n## story path-002\nsummary:      Implement path access and mutation primitives.\ntype:         service\nkind:         capability\nphase:        7\nimplements:   FEATURE-Path-Primitives.md\ncovers:       PATH-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     getpath, setpath, delpaths\nconsumes:     path discovery and projection\ndepends:      path-001\nacceptance:   yes\ninstructions: |\n  Implement nested path reads, creation and replacement, deletion, array expansion, invalid path\n  handling, and depth limits for getpath, setpath, and delpaths. Gate with PATH-002.\nscope:        target\n\n## story path-003\nsummary:      Implement deletion and assignment operators.\ntype:         service\nkind:         capability\nphase:        7\nimplements:   FEATURE-Assignment-Operators.md\ncovers:       PATH-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     del, =, |=, arithmetic assignments, defined-or assignment\nconsumes:     getpath, setpath, delpaths\ndepends:      path-002\nacceptance:   yes\ninstructions: |\n  Implement immutable deletion, plain and update assignment, arithmetic assignment, multi-path\n  updates, and empty-update deletion semantics. Gate with the PATH-003 executing selector.\nscope:        target\n\n## story path-004\nsummary:      Implement complex assignment edge cases.\ntype:         service\nkind:         capability\nphase:        7\nimplements:   FEATURE-Complex-Assignments.md\ncovers:       PATH-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     iterated assignment edge cases, array expansion, invalid and deep paths\nconsumes:     deletion and assignment operators\ndepends:      path-003\nacceptance:   yes\ninstructions: |\n  Handle iterated paths, empty updates, array expansion, invalid paths, negative and NaN indices,\n  and path/depth limits. Gate with the PATH-004 executing selector.\nscope:        target\n\n## story data-001\nsummary:      Implement collection transformation builtins.\ntype:         service\nkind:         capability\nphase:        8\nimplements:   FEATURE-Collection-Transforms.md\ncovers:       DATA-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/builtin.jq, sources/jq-manual.txt, sources/jq.test\nprovides:     map, map_values, select, add, flatten, transpose, combinations, walk\nconsumes:     assignment operators, generator evaluation\ndepends:      path-004\nacceptance:   yes\ninstructions: |\n  Implement collection transformation builtins and their generator, empty, recursion, and\n  mutation semantics. Gate with the DATA-001 executing selector.\nscope:        target\n\n## story data-002\nsummary:      Implement sorting, grouping, and extrema builtins.\ntype:         service\nkind:         capability\nphase:        8\nimplements:   FEATURE-Sorting-and-Grouping.md\ncovers:       DATA-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     sort, sort_by, group_by, unique, unique_by, min, max, keyed extrema\nconsumes:     jq comparison and generator semantics\ndepends:      data-001\nacceptance:   yes\ninstructions: |\n  Implement sorting and grouping by jq ordering, stable keyed projections, uniqueness, and\n  minimum/maximum variants. Gate with the DATA-002 executing selector.\nscope:        target\n\n## story data-003\nsummary:      Implement object-entry and containment builtins.\ntype:         service\nkind:         capability\nphase:        8\nimplements:   FEATURE-Object-and-Containment-Builtins.md\ncovers:       DATA-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     keys, keys_unsorted, has, in, inside, contains, to_entries, from_entries, with_entries\nconsumes:     jq value model and comparison semantics\ndepends:      data-002\nacceptance:   yes\ninstructions: |\n  Implement object/array key utilities, containment relations, entry conversion, and entry\n  transformations with jq ordering and structural equality. Gate with DATA-003.\nscope:        target\n\n## story data-004\nsummary:      Implement index and membership utilities.\ntype:         service\nkind:         capability\nphase:        8\nimplements:   FEATURE-Index-and-Membership.md\ncovers:       DATA-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/builtin.jq, sources/jq-manual.txt, sources/jq.test\nprovides:     indices, index, rindex, bsearch, all, any, isempty, IN\nconsumes:     collection and comparison builtins\ndepends:      data-003\nacceptance:   yes\ninstructions: |\n  Implement string/array indexing, binary search, all/any short-circuiting, isempty, and SQL-style\n  IN utilities with generator arguments. Gate with the DATA-004 executing selector.\nscope:        target\n\n## story text-001\nsummary:      Implement string manipulation builtins.\ntype:         service\nkind:         capability\nphase:        9\nimplements:   FEATURE-String-Builtins.md\ncovers:       TEXT-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     trimming, prefixes, suffixes, case conversion, explode, implode, split, join\nconsumes:     jq value model and generator evaluation\ndepends:      data-004\nacceptance:   yes\ninstructions: |\n  Implement trimming, prefix/suffix operations, ASCII case conversion, codepoint\n  explode/implode, split, join, and interpolation-compatible string behavior. Gate with TEXT-001.\nscope:        target\n\n## story text-002\nsummary:      Implement JSON and output format filters.\ntype:         service\nkind:         capability\nphase:        9\nimplements:   FEATURE-Output-Formats.md\ncovers:       TEXT-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     tostring, tojson, fromjson, @text, @json, @html, @uri, @urid, @csv, @tsv, @sh, @base64, @base64d\nconsumes:     string manipulation builtins and JSON serializer\ndepends:      text-001\nacceptance:   yes\ninstructions: |\n  Implement JSON conversion and all required format filters, escaping, encoding, decoding, and\n  interpolation behavior. Gate with the TEXT-002 executing selector.\nscope:        target\n\n## story text-003\nsummary:      Implement regular-expression filters.\ntype:         service\nkind:         capability\nphase:        9\nimplements:   FEATURE-Regular-Expressions.md\ncovers:       TEXT-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     test, match, capture, scan, splits, regex split, sub, gsub\nconsumes:     string manipulation builtins\ndepends:      text-002\nacceptance:   yes\ninstructions: |\n  Implement the standard-library regex surface required by the corpus, flags, captures, offsets,\n  streams, splitting, substitution, and global substitution. Gate with TEXT-003.\nscope:        target\n\n## story text-004\nsummary:      Implement date and time filters.\ntype:         service\nkind:         capability\nphase:        9\nimplements:   FEATURE-Date-and-Time.md\ncovers:       TEXT-004\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     fromdateiso8601, todateiso8601, strptime, strftime, gmtime, localtime, mktime\nconsumes:     jq string and numeric values\ndepends:      text-003\nacceptance:   yes\ninstructions: |\n  Implement UTC ISO date conversion and required low-level date/time filters using the Python\n  standard library, including supplied invalid-input behavior. Gate with TEXT-004.\nscope:        target\n\n## story io-001\nsummary:      Implement input stream controls.\ntype:         service\nkind:         capability\nphase:        10\nimplements:   FEATURE-Input-Streams.md\ncovers:       IO-001\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/jq.test\nprovides:     input, inputs, input_filename, input_line_number\nconsumes:     executable JSON input boundary\ndepends:      text-004\nacceptance:   yes\ninstructions: |\n  Implement input and inputs over the fixed stdin interface and the available filename and line\n  number metadata. Gate with the IO-001 executing selector.\nscope:        target\n\n## story io-002\nsummary:      Implement diagnostics and stderr output filters.\ntype:         service\nkind:         capability\nphase:        10\nimplements:   FEATURE-Diagnostics.md\ncovers:       IO-002\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     debug, stderr, halt_error\nconsumes:     process exit and diagnostic behavior\ndepends:      io-001\nacceptance:   yes\ninstructions: |\n  Implement debug, stderr, and halt_error channel behavior, preserving stdout values and exit\n  status semantics. Gate with the IO-002 executing selector.\nscope:        target\n\n## story io-003\nsummary:      Implement streaming transformations.\ntype:         service\nkind:         capability\nphase:        10\nimplements:   FEATURE-Streaming.md\ncovers:       IO-003\nstack:        common.md, python.md\ncontext:      ARCHITECTURE.md, sources/jq-manual.txt, sources/builtin.jq, sources/jq.test\nprovides:     tostream, fromstream, truncate_stream\nconsumes:     generator evaluation and input stream controls\ndepends:      io-002\nacceptance:   yes\ninstructions: |\n  Implement jq streaming value representations, truncation, reconstruction, and round-trip\n  behavior required by the corpus. Gate with the IO-003 executing selector.\nscope:        target\n\n## story conf-001\nsummary:      Stage and validate immutable conformance assets.\ntype:         foundational\nkind:         test harness\nphase:        1\nimplements:   FEATURE-Conformance-Assets.md\ncovers:       CONF-001\nstack:        common.md, python.md\ncontext:      sources/run_conformance.py, sources/jq.test, sources/exclusions.txt, sources/full_test.sh, sources/jq-manual.txt, sources/parser.y, sources/lexer.l, sources/builtin.jq\nprovides:     staged conformance corpus, exclusions, runner, scoring script\nconsumes:     none\ndepends:      architecture\nacceptance:   yes\ninstructions: |\n  Stage all required sources verbatim under sources/. Validate the runner's corpus parser and\n  exclusion application directly in Python, including complete and mutually consistent assets.\n  Do not modify any supplied source.\nscope:        both\n\n## story conf-002\nsummary:      Provide scoped conformance verification for implementation slices.\ntype:         service\nkind:         test harness\nphase:        10\nimplements:   FEATURE-Scoped-Conformance.md\ncovers:       CONF-002\nstack:        common.md, python.md\ncontext:      sources/run_conformance.py, sources/jq.test, sources/exclusions.txt\nprovides:     executing scoped conformance gates\nconsumes:     ./jq -c program execution\ndepends:      io-003, conf-001\nacceptance:   yes\ninstructions: |\n  Ensure each implementation story invokes the supplied runner with JQ supplied through the\n  inherited environment and a selector that executes a non-empty slice of its owned constructs.\n  Scoped checks must assert parsed failure/error tallies and exit status, never enumerate-only modes.\nscope:        target\n\n## story conf-003\nsummary:      Pass the complete jq conformance corpus.\ntype:         feature\nkind:         test harness\nphase:        11\nimplements:   FEATURE-Complete-Conformance.md\ncovers:       CONF-003\naccepts:       st-001\nstack:        common.md, python.md\ncontext:      sources/full_test.sh, sources/run_conformance.py, sources/jq.test, sources/exclusions.txt\nprovides:     complete conformance release verification\nconsumes:     ./jq -c program execution\ndepends:      architecture, exec-001, exec-002, exec-003, parse-001, parse-002, parse-003, parse-004, core-001, core-002, core-003, core-004, value-001, value-002, value-003, value-004, flow-001, flow-002, flow-003, flow-004, flow-005, flow-006, func-001, func-002, func-003, func-004, path-001, path-002, path-003, path-004, data-001, data-002, data-003, data-004, text-001, text-002, text-003, text-004, io-001, io-002, io-003, conf-001, conf-002\nacceptance:   yes\ninstructions: |\n  Run the supplied sh sources/full_test.sh as the sole terminal whole-corpus acceptance. Print\n  captured stdout and stderr for diagnosis and assert only the completed suite's successful exit\n  status, with zero failed or errored cases as reported by the authoritative runner.\nscope:        target\n\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT DECISIONS.json ===\n[\n  {\n    \"id\": \"Q-001\",\n    \"type\": \"choice\",\n    \"severity\": \"material\",\n    \"blueprint\": \"ARCHITECTURE.md\",\n    \"story\": \"architecture\",\n    \"title\": \"Interpreter implementation structure\",\n    \"description\": \"The project needs a standalone jq interpreter while the sources leave the internal module structure open.\",\n    \"options\": [\n      {\n        \"value\": \"single-executable\",\n        \"label\": \"Single executable script\"\n      },\n      {\n        \"value\": \"modular-python\",\n        \"label\": \"Modular Python implementation\"\n      }\n    ],\n    \"system_choice\": \"modular-python\"\n  },\n  {\n    \"id\": \"Q-002\",\n    \"type\": \"choice\",\n    \"severity\": \"material\",\n    \"blueprint\": \"ARCHITECTURE.md\",\n    \"story\": \"architecture\",\n    \"title\": \"Numeric representation\",\n    \"description\": \"The corpus requires jq-compatible numeric behavior, including special values and large literals, while runtime dependencies are restricted to the standard library.\",\n    \"options\": [\n      {\n        \"value\": \"float-only\",\n        \"label\": \"Native floating point\"\n      },\n      {\n        \"value\": \"literal-aware-standard-library\",\n        \"label\": \"Literal-aware numeric model\"\n      }\n    ],\n    \"system_choice\": \"literal-aware-standard-library\"\n  }\n]\n=== END ARTIFACT ==="}}
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