Module: Harnex::ArtifactReport

Defined in:
lib/harnex/artifact_report.rb

Defined Under Namespace

Classes: ValidationResult

Constant Summary collapse

SCHEMA = 
"harnex.artifact_report.v1"
MAX_BYTES = 
256 * 1024
MAX_ARTIFACTS = 
50
MAX_COMMANDS = 
50
MAX_CANONICAL_ARTIFACTS = 
50
MAX_EVIDENCE_ITEMS = 
20
MAX_STRING_LENGTH = 
2_000
MAX_DIAGNOSTICS = 
100
MAX_CHANGED_PATHS = 
200
RECEIPT_VERSION = 
1
CLAIM_SEVERITIES = 
%w[P1 P2 P3].freeze
COMMAND_OBSERVATION_STATUSES = 
%w[observed unsupported].freeze
GIT_OBSERVATION_STATUSES = 
%w[observed unavailable].freeze
USAGE_STATUSES = 
%w[observed estimated unsupported missing zero].freeze
REPORT_STATUSES = 
%w[in_progress pass fail blocked unknown].freeze
VALIDATION_STATUSES = 
%w[in_progress pass fail not_run unknown].freeze
OUTCOME_STATUSES = 
%w[accepted rejected no_change unknown].freeze
ACCEPTED_OUTCOME_STATUSES = 
%w[accepted no_change].freeze

Class Method Summary collapse

Class Method Details

.accepted_final?(result) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/artifact_report.rb', line 361

def accepted_final?(result)
  result.ok && ACCEPTED_OUTCOME_STATUSES.include?(outcome_status(result))
end

.boolean?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/artifact_report.rb', line 1134

def boolean?(value)
  value == true || value == false
end

.boolean_or_nil(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1130

def boolean_or_nil(value)
  value if boolean?(value)
end

.bounded_string(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1082

def bounded_string(value)
  text = value.to_s
  return text if text.length <= MAX_STRING_LENGTH

  text[0, MAX_STRING_LENGTH]
end

.bounded_string_or_nil(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1076

def bounded_string_or_nil(value)
  return nil if value.nil?

  bounded_string(value)
end

.build_observed(id:, session_id:, generated_at:, successful:, outcome_status:, outcome_summary:, git:, commands:, turn:, usage:, claims:, command_observation:) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 255

def build_observed(
  id:, session_id:, generated_at:, successful:, outcome_status:,
  outcome_summary:, git:, commands:, turn:, usage:, claims:,
  command_observation:
)
  observed_commands = compact_commands(commands).select do |entry|
    non_empty_string?(entry["cmd"]) && entry["exit_code"].is_a?(Integer)
  end
  git_payload = compact_observed_git(git)
  turn_payload = compact_observed_turn(turn)
  usage_payload = compact_observed_usage(usage)
  claims_payload = compact_claims(claims)
  validation_status = if observed_commands.empty?
                        "not_run"
                      elsif observed_commands.all? { |entry| entry["exit_code"].zero? }
                        "pass"
                      else
                        "fail"
                      end
  start_sha = git_payload["start_sha"].to_s
  end_sha = git_payload["end_sha"].to_s
  commit_sha = end_sha unless start_sha.empty? || end_sha.empty? || start_sha == end_sha

  report = {
    "schema" => SCHEMA,
    "status" => successful ? "pass" : "fail",
    "canonical_artifacts" => [],
    "outcome" => {
      "status" => outcome_status,
      "summary" => bounded_string(outcome_summary),
      "commit_sha" => commit_sha
    }.compact,
    "validation" => {
      "status" => validation_status,
      "commands" => observed_commands,
      "final_reported" => true
    },
    "artifacts" => [],
    "receipt" => {
      "version" => RECEIPT_VERSION,
      "author" => "harnex",
      "generated_at" => generated_at.respond_to?(:iso8601) ? generated_at.iso8601 : generated_at.to_s,
      "id" => bounded_string(id),
      "session_id" => bounded_string(session_id)
    },
    "observed" => {
      "git" => git_payload,
      "commands" => observed_commands,
      "command_observation" => command_observation.to_s,
      "turn" => turn_payload,
      "usage" => usage_payload
    }
  }
  report["claims"] = claims_payload unless claims_payload.empty?
  fit_observed_report!(report)
end

.build_payload(path, bytes:, sha256:, report:) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 832

def build_payload(path, bytes:, sha256:, report:)
  artifacts = compact_artifacts(report["artifacts"])
  validation = compact_validation(report["validation"])
  outcome = compact_outcome(report["outcome"])
  receipt = compact_receipt(report["receipt"])
  observed = compact_observed(report["observed"])
  claims = compact_claims(report["claims"])
  payload = {
    "artifact_report" => metadata(
      path,
      bytes: bytes,
      sha256: sha256,
      ingest_status: "ok",
      schema: SCHEMA
    ).merge(
      "report_status" => bounded_string_or_nil(report["status"]),
      "canonical_artifacts" => string_array(report["canonical_artifacts"], max_items: MAX_CANONICAL_ARTIFACTS),
      "artifact_count" => artifacts.length,
      "author" => receipt&.dig("author")
    )
  }
  payload["validation"] = validation if validation
  payload["artifacts"] = artifacts unless artifacts.empty?
  payload["outcome"] = outcome if outcome
  payload["receipt"] = receipt if receipt
  payload["observed"] = observed if observed
  payload["claims"] = claims unless claims.empty?
  payload
end

.claims_path(report_path) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 221

def claims_path(report_path)
  "#{File.expand_path(report_path.to_s)}.claims.json"
end

.compact_artifacts(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1032

def compact_artifacts(value)
  Array(value).first(MAX_ARTIFACTS).filter_map do |entry|
    next unless entry.is_a?(Hash)

    compact = {
      "type" => bounded_string_or_nil(entry["type"]),
      "summary" => bounded_string_or_nil(entry["summary"]),
      "evidence" => string_array(entry["evidence"], max_items: MAX_EVIDENCE_ITEMS),
      "confidence" => finite_float_or_nil(entry["confidence"]),
      "canonical_ref" => bounded_string_or_nil(entry["canonical_ref"])
    }
    compact.delete_if { |_key, item| item.nil? || item == [] }
    compact.empty? ? nil : compact
  end
end

.compact_claims(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 972

def compact_claims(value)
  return {} unless value.is_a?(Hash)

  payload = {
    "summary" => bounded_string_or_nil(hash_value(value, "summary")),
    "verdict" => bounded_string_or_nil(hash_value(value, "verdict"))
  }
  findings = hash_value(value, "findings")
  if findings.is_a?(Hash)
    counts = CLAIM_SEVERITIES.each_with_object({}) do |severity, result|
      count = non_negative_integer_or_nil(hash_value(findings, severity))
      result[severity] = count unless count.nil?
    end
    payload["findings"] = counts unless counts.empty?
  end
  payload.delete_if { |_key, item| item.nil? || item == "" }
  payload
end

.compact_commands(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1002

def compact_commands(value)
  Array(value).first(MAX_COMMANDS).filter_map do |entry|
    next unless entry.is_a?(Hash)

    compact = {
      "cmd" => bounded_string_or_nil(entry["cmd"]),
      "exit_code" => integer_or_nil(entry["exit_code"]),
      "status" => bounded_string_or_nil(entry["status"]),
      "duration_s" => finite_float_or_nil(entry["duration_s"])
    }
    compact.delete_if { |_key, item| item.nil? }
    compact.empty? ? nil : compact
  end
end

.compact_observed(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 904

def compact_observed(value)
  return nil unless value.is_a?(Hash)

  payload = {
    "git" => compact_observed_git(value["git"]),
    "commands" => compact_commands(value["commands"]),
    "commands_truncated" => boolean_or_nil(value["commands_truncated"]),
    "command_observation" => bounded_string_or_nil(value["command_observation"]),
    "turn" => compact_observed_turn(value["turn"]),
    "usage" => compact_observed_usage(value["usage"])
  }
  payload.delete_if { |_key, item| item.nil? }
  payload.empty? ? nil : payload
end

.compact_observed_git(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 919

def compact_observed_git(value)
  value = {} unless value.is_a?(Hash)
  status = hash_value(value, "status").to_s
  status = "observed" if status.empty? && !hash_value(value, "start_sha").to_s.empty?
  status = "unavailable" unless GIT_OBSERVATION_STATUSES.include?(status)
  payload = {
    "status" => status,
    "start_sha" => bounded_string_or_nil(hash_value(value, "start_sha")),
    "end_sha" => bounded_string_or_nil(hash_value(value, "end_sha")),
    "branch" => bounded_string_or_nil(hash_value(value, "branch")),
    "changed_paths" => string_array(hash_value(value, "changed_paths"), max_items: MAX_CHANGED_PATHS),
    "loc_added" => non_negative_integer_or_nil(hash_value(value, "loc_added")),
    "loc_removed" => non_negative_integer_or_nil(hash_value(value, "loc_removed")),
    "files_changed" => non_negative_integer_or_nil(hash_value(value, "files_changed")),
    "commits" => non_negative_integer_or_nil(hash_value(value, "commits")),
    "start_dirty" => boolean_or_nil(hash_value(value, "start_dirty")),
    "end_dirty" => boolean_or_nil(hash_value(value, "end_dirty")),
    "worktree_changed" => boolean_or_nil(hash_value(value, "worktree_changed")),
    "changed_paths_truncated" => boolean_or_nil(hash_value(value, "changed_paths_truncated"))
  }
  payload.delete_if { |key, item| item.nil? || (key == "changed_paths" && status == "unavailable") }
  payload
end

.compact_observed_turn(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 943

def compact_observed_turn(value)
  value = {} unless value.is_a?(Hash)
  payload = {
    "status" => bounded_string_or_nil(hash_value(value, "status")),
    "outcome_class" => bounded_string_or_nil(hash_value(value, "outcome_class")),
    "task_complete" => !!hash_value(value, "task_complete"),
    "task_failed" => !!hash_value(value, "task_failed"),
    "accepted" => !!hash_value(value, "accepted"),
    "exit_code" => integer_or_nil(hash_value(value, "exit_code")),
    "signal" => integer_or_nil(hash_value(value, "signal"))
  }
  payload.delete_if { |_key, item| item.nil? }
  payload
end

.compact_observed_usage(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 958

def compact_observed_usage(value)
  value = {} unless value.is_a?(Hash)
  payload = {}
  %w[status cost_source cost_price_as_of].each do |key|
    payload[key] = bounded_string_or_nil(hash_value(value, key))
  end
  payload["cost_usd"] = finite_float_or_nil(hash_value(value, "cost_usd"))
  %w[input_tokens output_tokens cached_input_tokens reasoning_tokens total_tokens].each do |key|
    payload[key] = non_negative_integer_or_nil(hash_value(value, key))
  end
  payload.delete_if { |_key, item| item.nil? }
  payload
end

.compact_outcome(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1017

def compact_outcome(value)
  return nil unless value.is_a?(Hash)

  status = value["status"].to_s
  return nil unless OUTCOME_STATUSES.include?(status)

  payload = {
    "status" => status,
    "summary" => bounded_string_or_nil(value["summary"]),
    "commit_sha" => bounded_string_or_nil(value["commit_sha"])
  }
  payload.delete_if { |_key, item| item.nil? }
  payload
end

.compact_receipt(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 890

def compact_receipt(value)
  return nil unless value.is_a?(Hash)

  payload = {
    "version" => integer_or_nil(value["version"]),
    "author" => bounded_string_or_nil(value["author"]),
    "generated_at" => bounded_string_or_nil(value["generated_at"]),
    "id" => bounded_string_or_nil(value["id"]),
    "session_id" => bounded_string_or_nil(value["session_id"])
  }
  payload.delete_if { |_key, item| item.nil? }
  payload.empty? ? nil : payload
end

.compact_validation(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 991

def compact_validation(value)
  return nil unless value.is_a?(Hash)

  payload = {}
  payload["status"] = bounded_string_or_nil(value["status"])
  payload["commands"] = compact_commands(value["commands"])
  payload["final_reported"] = !!value["final_reported"] if value.key?("final_reported")
  payload.delete_if { |_key, item| item.nil? || item == [] }
  payload.empty? ? nil : payload
end

.default_path(repo_root:, id:, session_id:) ⇒ Object

Default receipts live outside the checkout so proof generation cannot become part of the Git delta it is recording. An explicit --artifact-report path still wins for callers that need a stable path.



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# File 'lib/harnex/artifact_report.rb', line 211

def default_path(repo_root:, id:, session_id:)
  slug = Harnex.id_key(id)
  slug = Digest::SHA256.hexdigest(id.to_s)[0, 12] if slug.empty?
  File.join(
    Harnex::STATE_DIR,
    "receipts",
    "#{Harnex.repo_key(repo_root)}-#{slug}-#{session_id}.json"
  )
end

.diagnostic(code, path, message) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1061

def diagnostic(code, path, message)
  {
    "code" => code,
    "path" => path,
    "message" => bounded_string(message)
  }
end

.extract_claims(path) ⇒ Object

Claims are deliberately advisory. Malformed, stale, or oversized claims are ignored by Session and can never invalidate observed proof.



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# File 'lib/harnex/artifact_report.rb', line 227

def extract_claims(path)
  claims_path = File.expand_path(path.to_s)
  return {} unless File.file?(claims_path)
  return {} if File.size(claims_path) > MAX_BYTES

  document = JSON.parse(File.read(claims_path, mode: "rb"))
  return {} unless document.is_a?(Hash)

  source = document["claims"].is_a?(Hash) ? document["claims"] : document
  claims = compact_claims(source)

  # Compatibility bridge for old worker-authored v1 reports. Their
  # outcome is retained only as an untrusted verdict/summary claim; it no
  # longer participates in completion acceptance.
  if claims.empty? && document["schema"] == SCHEMA
    outcome = document["outcome"]
    if outcome.is_a?(Hash)
      claims = compact_claims(
        "summary" => outcome["summary"],
        "verdict" => outcome["status"]
      )
    end
  end
  claims
rescue StandardError
  {}
end

.file_sha256(path) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1138

def file_sha256(path)
  digest = Digest::SHA256.new
  File.open(path, "rb") do |file|
    buffer = +""
    digest.update(buffer) while file.read(16 * 1024, buffer)
  end
  digest.hexdigest
end

.fingerprint(path) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 365

def fingerprint(path)
  report_path = File.expand_path(path.to_s)
  return nil unless File.file?(report_path)

  stat = File.stat(report_path)
  {
    "bytes" => stat.size,
    "sha256" => file_sha256(report_path),
    "mtime_ns" => (stat.mtime.to_r * 1_000_000_000).to_i,
    "ctime_ns" => (stat.ctime.to_r * 1_000_000_000).to_i,
    "inode" => stat.ino
  }
rescue StandardError
  nil
end

.finite_float_or_nil(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1109

def finite_float_or_nil(value)
  return nil if value.nil?

  number = Float(value)
  number.finite? ? number : nil
rescue ArgumentError, TypeError
  nil
end

.finite_non_negative_number?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/artifact_report.rb', line 1122

def finite_non_negative_number?(value)
  finite_number?(value) && value >= 0
end

.finite_number?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/artifact_report.rb', line 1118

def finite_number?(value)
  value.is_a?(Numeric) && value.finite?
end

.fit_observed_report!(report) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 312

def fit_observed_report!(report)
  loop do
    return report if JSON.pretty_generate(report).bytesize + 1 <= MAX_BYTES

    commands = report.dig("observed", "commands")
    if commands.is_a?(Array) && !commands.empty?
      commands.pop
      report.dig("observed")["commands_truncated"] = true
      next
    end

    paths = report.dig("observed", "git", "changed_paths")
    if paths.is_a?(Array) && !paths.empty?
      paths.pop
      report.dig("observed", "git")["changed_paths_truncated"] = true
      next
    end

    raise ArgumentError, "generated artifact receipt exceeds the #{MAX_BYTES}-byte limit"
  end
end

.harness_receipt?(report) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/artifact_report.rb', line 731

def harness_receipt?(report)
  report.dig("receipt", "author") == "harnex"
end

.hash_value(hash, key) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1102

def hash_value(hash, key)
  return nil unless hash.is_a?(Hash)
  return hash[key] if hash.key?(key)

  hash[key.to_sym]
end

.ingest(path) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 119

def ingest(path)
  result = validate(path)
  case result.status
  when "missing"
    missing(result.path)
  when "oversized"
    warning(
      result.path,
      bytes: result.bytes,
      sha256: result.sha256,
      ingest_status: "oversized",
      warning: "artifact report is #{result.bytes} bytes; max is #{MAX_BYTES} bytes",
      diagnostics: result.diagnostics
    )
  when "malformed"
    warning(
      result.path,
      bytes: result.bytes,
      sha256: result.sha256,
      ingest_status: "malformed",
      warning: "malformed artifact report JSON",
      diagnostics: result.diagnostics
    )
  when "unsupported_schema"
    warning(
      result.path,
      bytes: result.bytes,
      sha256: result.sha256,
      ingest_status: "unsupported_schema",
      schema: result.schema,
      warning: "unsupported artifact report schema; expected #{SCHEMA}",
      diagnostics: result.diagnostics
    )
  when "error"
    warning(
      result.path,
      bytes: result.bytes,
      sha256: result.sha256,
      ingest_status: "error",
      warning: "artifact report ingest failed",
      diagnostics: result.diagnostics
    )
  else
    payload = build_payload(
      result.path,
      bytes: result.bytes,
      sha256: result.sha256,
      report: result.report
    )
    unless result.ok
      metadata = payload.fetch("artifact_report")
      metadata["ingest_status"] = "invalid"
      metadata["warning"] = "artifact report does not conform to #{SCHEMA}"
      metadata["diagnostics"] = result.diagnostics
    end
    payload
  end
end

.initialize_file(path, force: false) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/harnex/artifact_report.rb', line 178

def initialize_file(path, force: false)
  report_path = File.expand_path(path.to_s)
  raise ArgumentError, "artifact report path is required" if path.to_s.strip.empty?
  if File.exist?(report_path) && !force
    raise ArgumentError, "artifact report already exists: #{report_path} (use --force to replace it)"
  end

  FileUtils.mkdir_p(File.dirname(report_path))
  File.write(report_path, JSON.pretty_generate(template) + "\n")
  report_path
end

.integer_or_nil(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1089

def integer_or_nil(value)
  return nil if value.nil?

  Integer(value)
rescue ArgumentError, TypeError
  nil
end

.metadata(path, bytes:, sha256:, ingest_status:, schema: nil) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 880

def metadata(path, bytes:, sha256:, ingest_status:, schema: nil)
  {
    "path" => path.to_s,
    "bytes" => bytes,
    "sha256" => sha256,
    "ingest_status" => ingest_status,
    "schema" => schema
  }
end

.missing(path) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 862

def missing(path)
  warning(
    path,
    bytes: nil,
    sha256: nil,
    ingest_status: "missing",
    warning: "artifact report not found",
    diagnostics: [diagnostic("report_missing", "$", "artifact report file does not exist")]
  )
end

.non_empty_string?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/artifact_report.rb', line 1126

def non_empty_string?(value)
  value.is_a?(String) && !value.empty? && value.length <= MAX_STRING_LENGTH
end

.non_negative_integer_or_nil(value) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1097

def non_negative_integer_or_nil(value)
  integer = integer_or_nil(value)
  integer if integer && integer >= 0
end

.outcome_status(result) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 381

def outcome_status(result)
  report = result.respond_to?(:report) ? result.report : result
  return nil unless report.is_a?(Hash)

  outcome = report["outcome"]
  outcome.is_a?(Hash) ? outcome["status"] : nil
end

.safe_file_sha256(path) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1153

def safe_file_sha256(path)
  file_sha256(path) if File.file?(path)
rescue StandardError
  nil
end

.safe_file_size(path) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1147

def safe_file_size(path)
  File.size(path) if File.file?(path)
rescue StandardError
  nil
end

.string_array(value, max_items:) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1069

def string_array(value, max_items:)
  Array(value).first(max_items).filter_map do |item|
    text = bounded_string_or_nil(item)
    text unless text.nil? || text.empty?
  end
end

.template ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 190

def template
  {
    "schema" => SCHEMA,
    "status" => "in_progress",
    "canonical_artifacts" => [],
    "outcome" => {
      "status" => "unknown",
      "summary" => ""
    },
    "validation" => {
      "status" => "not_run",
      "commands" => [],
      "final_reported" => false
    },
    "artifacts" => []
  }
end

.validate(path, final: false) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 48

def validate(path, final: false)
  report_path = File.expand_path(path.to_s)
  return validation_failure(
    report_path,
    status: "missing",
    diagnostics: [diagnostic("report_missing", "$", "artifact report file does not exist")]
  ) unless File.file?(report_path)

  bytes = File.size(report_path)
  sha256 = file_sha256(report_path)
  if bytes > MAX_BYTES
    return validation_failure(
      report_path,
      status: "oversized",
      bytes: bytes,
      sha256: sha256,
      diagnostics: [
        diagnostic("report_oversized", "$", "artifact report exceeds the #{MAX_BYTES}-byte limit")
      ]
    )
  end

  parsed = JSON.parse(File.read(report_path, mode: "rb"))
  unless parsed.is_a?(Hash)
    return validation_failure(
      report_path,
      status: "malformed",
      bytes: bytes,
      sha256: sha256,
      diagnostics: [diagnostic("object_required", "$", "artifact report must be a JSON object")]
    )
  end

  schema = parsed["schema"].is_a?(String) ? bounded_string(parsed["schema"]) : nil
  diagnostics = validate_document(parsed, final: final)
  status = if parsed["schema"] != SCHEMA
             "unsupported_schema"
           elsif diagnostics.empty?
             "valid"
           else
             "invalid"
           end

  ValidationResult.new(
    ok: diagnostics.empty?,
    status: status,
    path: report_path,
    bytes: bytes,
    sha256: sha256,
    schema: schema,
    diagnostics: diagnostics,
    report: parsed
  )
rescue JSON::ParserError
  validation_failure(
    report_path,
    status: "malformed",
    bytes: safe_file_size(report_path),
    sha256: safe_file_sha256(report_path),
    diagnostics: [diagnostic("json_invalid", "$", "artifact report is not valid JSON")]
  )
rescue StandardError
  validation_failure(
    report_path,
    status: "error",
    bytes: safe_file_size(report_path),
    sha256: safe_file_sha256(report_path),
    diagnostics: [diagnostic("read_error", "$", "artifact report could not be read")]
  )
end

.validate_artifacts(value, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 512

def validate_artifacts(value, diagnostics)
  unless value.is_a?(Array)
    diagnostics << diagnostic("array_required", "$.artifacts", "artifacts must be an array")
    return
  end
  if value.length > MAX_ARTIFACTS
    diagnostics << diagnostic(
      "too_many_items",
      "$.artifacts",
      "artifacts may contain at most #{MAX_ARTIFACTS} entries"
    )
  end

  value.first(MAX_ARTIFACTS).each_with_index do |entry, index|
    path = "$.artifacts[#{index}]"
    unless entry.is_a?(Hash)
      diagnostics << diagnostic("object_required", path, "artifact must be an object")
      next
    end

    validate_required_string(entry, "type", "#{path}.type", diagnostics)
    validate_required_string(entry, "summary", "#{path}.summary", diagnostics)
    validate_string_array_value(
      entry["evidence"],
      "#{path}.evidence",
      max_items: MAX_EVIDENCE_ITEMS,
      diagnostics: diagnostics,
      required: true
    )
    confidence = entry["confidence"]
    unless finite_number?(confidence) && confidence >= 0.0 && confidence <= 1.0
      diagnostics << diagnostic(
        "range",
        "#{path}.confidence",
        "artifact confidence must be a finite number from 0 through 1"
      )
    end
    validate_optional_string(entry, "canonical_ref", "#{path}.canonical_ref", diagnostics)
  end
end

.validate_commands(value, diagnostics, base_path: "$.validation.commands") ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 473

def validate_commands(value, diagnostics, base_path: "$.validation.commands")
  unless value.is_a?(Array)
    diagnostics << diagnostic("array_required", base_path, "#{base_path.delete_prefix('$.')} must be an array")
    return
  end
  if value.length > MAX_COMMANDS
    diagnostics << diagnostic(
      "too_many_items",
      base_path,
      "#{base_path.delete_prefix('$.')} may contain at most #{MAX_COMMANDS} entries"
    )
  end

  value.first(MAX_COMMANDS).each_with_index do |entry, index|
    path = "#{base_path}[#{index}]"
    unless entry.is_a?(Hash)
      diagnostics << diagnostic("object_required", path, "validation command must be an object")
      next
    end

    validate_required_string(entry, "cmd", "#{path}.cmd", diagnostics)
    unless entry["exit_code"].is_a?(Integer)
      diagnostics << diagnostic(
        "integer_required",
        "#{path}.exit_code",
        "validation command exit_code must be an integer"
      )
    end
    validate_optional_string(entry, "status", "#{path}.status", diagnostics)
    if entry.key?("duration_s") && !finite_non_negative_number?(entry["duration_s"])
      diagnostics << diagnostic(
        "number_required",
        "#{path}.duration_s",
        "validation command duration_s must be a finite non-negative number"
      )
    end
  end
end

.validate_document(report, final: false) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 389

def validate_document(report, final: false)
  diagnostics = []
  validate_schema(report, diagnostics)
  validate_optional_enum(report, "status", REPORT_STATUSES, diagnostics)
  validate_string_array_field(
    report,
    "canonical_artifacts",
    max_items: MAX_CANONICAL_ARTIFACTS,
    diagnostics: diagnostics
  )
  validate_outcome(report["outcome"], diagnostics) if report.key?("outcome")
  validate_validation(report["validation"], diagnostics) if report.key?("validation")
  validate_artifacts(report["artifacts"], diagnostics) if report.key?("artifacts")
  validate_receipt(report["receipt"], diagnostics) if report.key?("receipt")
  validate_observed(report["observed"], diagnostics) if report.key?("observed")
  # `claims` is intentionally not part of validity. Session emits only a
  # bounded sanitized subset, while malformed worker claims are ignored.
  validate_final_contract(report, diagnostics) if final
  diagnostics.first(MAX_DIAGNOSTICS)
end

.validate_final_contract(report, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 660

def validate_final_contract(report, diagnostics)
  if harness_receipt?(report)
    validate_observed_final_contract(report, diagnostics)
    return
  end

  unless report["status"] == "pass"
    diagnostics << diagnostic("final_status", "$.status", "final report status must be pass")
  end

  outcome = report["outcome"]
  unless outcome.is_a?(Hash)
    diagnostics << diagnostic("required", "$.outcome", "final report requires an outcome object")
  else
    unless ACCEPTED_OUTCOME_STATUSES.include?(outcome["status"])
      diagnostics << diagnostic(
        "outcome_not_accepted",
        "$.outcome.status",
        "final outcome must be accepted or no_change"
      )
    end
    unless non_empty_string?(outcome["summary"])
      diagnostics << diagnostic(
        "required",
        "$.outcome.summary",
        "final outcome requires a non-empty summary"
      )
    end
  end

  validation = report["validation"]
  unless validation.is_a?(Hash)
    diagnostics << diagnostic("required", "$.validation", "final report requires a validation object")
    return
  end

  expected_statuses = outcome.is_a?(Hash) && outcome["status"] == "no_change" ? %w[pass not_run] : %w[pass]
  unless expected_statuses.include?(validation["status"])
    diagnostics << diagnostic(
      "final_validation_status",
      "$.validation.status",
      "final validation.status must be #{expected_statuses.join(' or ')}"
    )
  end
  unless validation["commands"].is_a?(Array)
    diagnostics << diagnostic(
      "required",
      "$.validation.commands",
      "final report requires a validation.commands array"
    )
  end
  unless validation["final_reported"] == true
    diagnostics << diagnostic(
      "final_reported",
      "$.validation.final_reported",
      "final report requires validation.final_reported=true"
    )
  end

  Array(validation["commands"]).first(MAX_COMMANDS).each_with_index do |entry, index|
    next unless entry.is_a?(Hash) && entry["exit_code"].is_a?(Integer)
    next if entry["exit_code"].zero?

    diagnostics << diagnostic(
      "command_failed",
      "$.validation.commands[#{index}].exit_code",
      "accepted final reports require validation command exit_code=0"
    )
  end
end

.validate_observed(value, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 575

def validate_observed(value, diagnostics)
  unless value.is_a?(Hash)
    diagnostics << diagnostic("object_required", "$.observed", "observed must be an object")
    return
  end

  git = value["git"]
  unless git.is_a?(Hash)
    diagnostics << diagnostic("object_required", "$.observed.git", "observed.git must be an object")
  else
    unless GIT_OBSERVATION_STATUSES.include?(git["status"])
      diagnostics << diagnostic("enum", "$.observed.git.status", "observed.git.status must be observed or unavailable")
    end
    %w[start_sha end_sha branch].each do |key|
      validate_optional_string(git, key, "$.observed.git.#{key}", diagnostics)
    end
    if git["status"] == "observed"
      %w[start_sha end_sha].each do |key|
        unless git[key].is_a?(String) && git[key].match?(/\A(?:[0-9a-f]{40}|[0-9a-f]{64})\z/)
          diagnostics << diagnostic("git_sha", "$.observed.git.#{key}", "observed.git.#{key} must be a full hexadecimal Git SHA")
        end
      end
    end
    validate_string_array_value(
      git["changed_paths"],
      "$.observed.git.changed_paths",
      max_items: MAX_CHANGED_PATHS,
      diagnostics: diagnostics,
      required: true
    ) if git["status"] == "observed" || git.key?("changed_paths")
    %w[loc_added loc_removed files_changed commits].each do |key|
      if git["status"] == "observed" && !git.key?(key)
        diagnostics << diagnostic("required", "$.observed.git.#{key}", "observed.git.#{key} is required when Git is observed")
        next
      end
      next unless git.key?(key)
      next if git[key].is_a?(Integer) && git[key] >= 0

      diagnostics << diagnostic("integer_required", "$.observed.git.#{key}", "observed.git.#{key} must be a non-negative integer")
    end
    %w[start_dirty end_dirty worktree_changed changed_paths_truncated].each do |key|
      next unless git.key?(key)
      next if boolean?(git[key])

      diagnostics << diagnostic("boolean_required", "$.observed.git.#{key}", "observed.git.#{key} must be true or false")
    end
  end

  validate_commands(value["commands"], diagnostics, base_path: "$.observed.commands")
  if value.key?("commands_truncated") && !boolean?(value["commands_truncated"])
    diagnostics << diagnostic("boolean_required", "$.observed.commands_truncated", "observed.commands_truncated must be true or false")
  end
  unless COMMAND_OBSERVATION_STATUSES.include?(value["command_observation"])
    diagnostics << diagnostic(
      "enum",
      "$.observed.command_observation",
      "observed.command_observation must be observed or unsupported"
    )
  end

  turn = value["turn"]
  unless turn.is_a?(Hash)
    diagnostics << diagnostic("object_required", "$.observed.turn", "observed.turn must be an object")
  else
    validate_required_string(turn, "status", "$.observed.turn.status", diagnostics)
    %w[task_complete task_failed accepted].each do |key|
      next if boolean?(turn[key])

      diagnostics << diagnostic("boolean_required", "$.observed.turn.#{key}", "observed.turn.#{key} must be true or false")
    end
    validate_optional_string(turn, "outcome_class", "$.observed.turn.outcome_class", diagnostics)
    if turn.key?("exit_code") && !turn["exit_code"].is_a?(Integer)
      diagnostics << diagnostic("integer_required", "$.observed.turn.exit_code", "observed.turn.exit_code must be an integer")
    end
  end

  unless value["usage"].is_a?(Hash)
    diagnostics << diagnostic("object_required", "$.observed.usage", "observed.usage must be an object")
  else
    unless USAGE_STATUSES.include?(value.dig("usage", "status"))
      diagnostics << diagnostic("enum", "$.observed.usage.status", "observed.usage.status must be observed, estimated, unsupported, missing, or zero")
    end
  end
end

.validate_observed_final_contract(report, diagnostics) ⇒ Object

Harness receipts prove that the receipt itself is complete and that Harnex accepted the observed terminal state. Individual command failures remain factual telemetry: they are not treated as worker-authored gates, because exploratory failures can precede a successful final turn.



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# File 'lib/harnex/artifact_report.rb', line 739

def validate_observed_final_contract(report, diagnostics)
  unless report["status"] == "pass"
    diagnostics << diagnostic("final_status", "$.status", "final receipt status must be pass")
  end

  outcome = report["outcome"]
  unless outcome.is_a?(Hash) && ACCEPTED_OUTCOME_STATUSES.include?(outcome["status"])
    diagnostics << diagnostic("outcome_not_accepted", "$.outcome.status", "final receipt outcome must be accepted or no_change")
  end
  unless outcome.is_a?(Hash) && non_empty_string?(outcome["summary"])
    diagnostics << diagnostic("required", "$.outcome.summary", "final receipt requires a non-empty summary")
  end

  validation = report["validation"]
  unless validation.is_a?(Hash) && validation["final_reported"] == true
    diagnostics << diagnostic("final_reported", "$.validation.final_reported", "final receipt requires validation.final_reported=true")
  end

  turn = report.dig("observed", "turn")
  unless turn.is_a?(Hash) && turn["accepted"] == true
    diagnostics << diagnostic("observed_not_accepted", "$.observed.turn.accepted", "final receipt requires an accepted observed turn")
  end

  return unless outcome.is_a?(Hash) && outcome["status"] == "no_change"

  git = report.dig("observed", "git")
  no_change = git.is_a?(Hash) &&
    git["status"] == "observed" &&
    git["commits"].to_i.zero? &&
    Array(git["changed_paths"]).empty? &&
    !git["start_sha"].to_s.empty? &&
    git["start_sha"].to_s == git["end_sha"].to_s
  unless no_change
    diagnostics << diagnostic(
      "no_change_unobserved",
      "$.observed.git",
      "no_change requires an observed zero-delta Git state"
    )
  end
end

.validate_optional_enum(report, key, values, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 419

def validate_optional_enum(report, key, values, diagnostics)
  return unless report.key?(key)

  value = report[key]
  unless value.is_a?(String) && values.include?(value)
    diagnostics << diagnostic("enum", "$.#{key}", "#{key} must be one of #{values.join(', ')}")
  end
end

.validate_optional_string(hash, key, path, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 821

def validate_optional_string(hash, key, path, diagnostics)
  return unless hash.key?(key)
  return if hash[key].is_a?(String) && hash[key].length <= MAX_STRING_LENGTH

  diagnostics << diagnostic(
    "string_required",
    path,
    "#{path.delete_prefix('$.')} must be a string no longer than #{MAX_STRING_LENGTH} characters"
  )
end

.validate_outcome(value, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 428

def validate_outcome(value, diagnostics)
  unless value.is_a?(Hash)
    diagnostics << diagnostic("object_required", "$.outcome", "outcome must be an object")
    return
  end

  status = value["status"]
  unless status.is_a?(String) && OUTCOME_STATUSES.include?(status)
    diagnostics << diagnostic(
      "enum",
      "$.outcome.status",
      "outcome.status must be one of #{OUTCOME_STATUSES.join(', ')}"
    )
  end
  validate_optional_string(value, "summary", "$.outcome.summary", diagnostics)
  validate_optional_string(value, "commit_sha", "$.outcome.commit_sha", diagnostics)
end

.validate_receipt(value, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 553

def validate_receipt(value, diagnostics)
  unless value.is_a?(Hash)
    diagnostics << diagnostic("object_required", "$.receipt", "receipt must be an object")
    return
  end

  unless value["version"] == RECEIPT_VERSION
    diagnostics << diagnostic("receipt_version", "$.receipt.version", "receipt.version must equal #{RECEIPT_VERSION}")
  end
  unless value["author"] == "harnex"
    diagnostics << diagnostic("receipt_author", "$.receipt.author", "receipt.author must equal harnex")
  end
  validate_required_string(value, "generated_at", "$.receipt.generated_at", diagnostics)
  begin
    Time.iso8601(value["generated_at"].to_s)
  rescue ArgumentError
    diagnostics << diagnostic("timestamp_required", "$.receipt.generated_at", "receipt.generated_at must be ISO 8601")
  end
  validate_required_string(value, "id", "$.receipt.id", diagnostics)
  validate_required_string(value, "session_id", "$.receipt.session_id", diagnostics)
end

.validate_required_string(hash, key, path, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 815

def validate_required_string(hash, key, path, diagnostics)
  return if non_empty_string?(hash[key])

  diagnostics << diagnostic("string_required", path, "#{path.delete_prefix('$.')} must be a non-empty string")
end

.validate_schema(report, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 410

def validate_schema(report, diagnostics)
  value = report["schema"]
  if !value.is_a?(String) || value.empty?
    diagnostics << diagnostic("schema_required", "$.schema", "schema must be a non-empty string")
  elsif value != SCHEMA
    diagnostics << diagnostic("schema_unsupported", "$.schema", "schema must equal #{SCHEMA}")
  end
end

.validate_string_array_field(report, key, max_items:, diagnostics:) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 780

def validate_string_array_field(report, key, max_items:, diagnostics:)
  return unless report.key?(key)

  validate_string_array_value(
    report[key],
    "$.#{key}",
    max_items: max_items,
    diagnostics: diagnostics,
    required: true
  )
end

.validate_string_array_value(value, path, max_items:, diagnostics:, required:) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 792

def validate_string_array_value(value, path, max_items:, diagnostics:, required:)
  if value.nil? && !required
    return
  end
  unless value.is_a?(Array)
    diagnostics << diagnostic("array_required", path, "#{path.delete_prefix('$.')} must be an array")
    return
  end
  if value.length > max_items
    diagnostics << diagnostic("too_many_items", path, "#{path.delete_prefix('$.')} may contain at most #{max_items} entries")
  end

  value.first(max_items).each_with_index do |item, index|
    next if non_empty_string?(item)

    diagnostics << diagnostic(
      "string_required",
      "#{path}[#{index}]",
      "#{path.delete_prefix('$.')} entries must be non-empty strings"
    )
  end
end

.validate_validation(value, diagnostics) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 446

def validate_validation(value, diagnostics)
  unless value.is_a?(Hash)
    diagnostics << diagnostic("object_required", "$.validation", "validation must be an object")
    return
  end

  if value.key?("status")
    status = value["status"]
    unless status.is_a?(String) && VALIDATION_STATUSES.include?(status)
      diagnostics << diagnostic(
        "enum",
        "$.validation.status",
        "validation.status must be one of #{VALIDATION_STATUSES.join(', ')}"
      )
    end
  end

  validate_commands(value["commands"], diagnostics) if value.key?("commands")
  if value.key?("final_reported") && !boolean?(value["final_reported"])
    diagnostics << diagnostic(
      "boolean_required",
      "$.validation.final_reported",
      "validation.final_reported must be true or false"
    )
  end
end

.validation_failure(path, status:, diagnostics:, bytes: nil, sha256: nil) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 1048

def validation_failure(path, status:, diagnostics:, bytes: nil, sha256: nil)
  ValidationResult.new(
    ok: false,
    status: status,
    path: path,
    bytes: bytes,
    sha256: sha256,
    schema: nil,
    diagnostics: diagnostics.first(MAX_DIAGNOSTICS),
    report: nil
  )
end

.warning(path, bytes:, sha256:, ingest_status:, warning:, schema: nil, diagnostics: nil) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 873

def warning(path, bytes:, sha256:, ingest_status:, warning:, schema: nil, diagnostics: nil)
  report = metadata(path, bytes: bytes, sha256: sha256, ingest_status: ingest_status, schema: schema)
  report["warning"] = bounded_string(warning)
  report["diagnostics"] = Array(diagnostics).first(MAX_DIAGNOSTICS) unless Array(diagnostics).empty?
  { "artifact_report" => report }
end

.write_observed(path, **attributes) ⇒ Object 



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# File 'lib/harnex/artifact_report.rb', line 334

def write_observed(path, **attributes)
  report_path = File.expand_path(path.to_s)
  report = build_observed(**attributes)
  diagnostics = validate_document(report)
  unless diagnostics.empty?
    raise ArgumentError, "generated artifact receipt is invalid: #{diagnostics.first.fetch('path')}"
  end

  FileUtils.mkdir_p(File.dirname(report_path))
  temporary_path = "#{report_path}.tmp.#{Process.pid}.#{Thread.current.object_id}"
  File.open(temporary_path, "wb", 0o644) do |file|
    file.write(JSON.pretty_generate(report))
    file.write("\n")
    file.flush
    file.fsync
  end
  File.rename(temporary_path, report_path)

  result = validate(report_path, final: !!attributes[:successful])
  if attributes[:successful] && !accepted_final?(result)
    raise ArgumentError, "generated artifact receipt did not satisfy final validation"
  end
  result
ensure
  FileUtils.rm_f(temporary_path) if defined?(temporary_path) && temporary_path
end