harn-stdlib 0.8.10

Embedded Harn standard library source catalog
Documentation 
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/** render_workflow_prompt_asset. */
pub fn render_workflow_prompt_asset(path, bindings = nil) {
  return render_prompt("std/workflow/prompts/" + path, bindings ?? {})
}

/** workflow_stage_prompt. */
pub fn workflow_stage_prompt(bindings) {
  return render_workflow_prompt_asset("stage.harn.prompt", bindings)
}

/** workflow_verification_context_intro. */
pub fn workflow_verification_context_intro() {
  return render_workflow_prompt_asset("verification_context_intro.harn.prompt", {})
}

fn __workflow_escape_prompt_text(text) {
  return to_string(text ?? "").replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;")
}

fn __workflow_artifact_title(artifact) {
  let title = artifact?.title
  if title != nil {
    return title
  }
  return to_string(artifact?.kind ?? "") + " " + to_string(artifact?.id ?? "")
}

fn __workflow_artifact_body(artifact) {
  let text = artifact?.text
  if text != nil {
    return text
  }
  let data = artifact?.data
  if data != nil {
    return json_stringify(data)
  }
  return ""
}

fn __workflow_render_artifact_xml(artifact) {
  let title = __workflow_artifact_title(artifact)
  let source = artifact?.source ?? "unknown"
  let freshness = artifact?.freshness ?? "normal"
  return "<artifact>\n"
    + "<title>"
    + __workflow_escape_prompt_text(title)
    + "</title>\n"
    + "<kind>"
    + __workflow_escape_prompt_text(artifact?.kind ?? "")
    + "</kind>\n"
    + "<source>"
    + __workflow_escape_prompt_text(source)
    + "</source>\n"
    + "<freshness>"
    + __workflow_escape_prompt_text(freshness)
    + "</freshness>\n"
    + "<priority>"
    + to_string(artifact?.priority ?? 0)
    + "</priority>\n"
    + "<body>\n"
    + __workflow_artifact_body(artifact)
    + "\n</body>\n"
    + "</artifact>"
}

fn __workflow_render_artifact_json(artifact) {
  return json_stringify(
    {
      id: artifact?.id,
      kind: artifact?.kind,
      title: __workflow_artifact_title(artifact),
      source: artifact?.source,
      freshness: artifact?.freshness,
      priority: artifact?.priority,
      text: __workflow_artifact_body(artifact),
    },
  )
}

/** workflow_render_artifacts_context. */
pub fn workflow_render_artifacts_context(artifacts = nil, policy = nil) {
  let render = policy?.render
  var parts = []
  for artifact in artifacts ?? [] {
    if render == "json" {
      parts = parts.push(__workflow_render_artifact_json(artifact))
    } else {
      parts = parts.push(__workflow_render_artifact_xml(artifact))
    }
  }
  return join(parts, "\n\n")
}

fn __workflow_push_optional_field(out, name, value) {
  if value == nil {
    return out
  }
  return out + "<" + name + ">" + __workflow_escape_prompt_text(value) + "</" + name + ">\n"
}

fn __workflow_push_int_field(out, name, value) {
  if value == nil {
    return out
  }
  return out + "<" + name + ">" + to_string(value) + "</" + name + ">\n"
}

fn __workflow_push_string_list(out, name, values) {
  if len(values ?? []) == 0 {
    return out
  }
  var result = out + "<" + name + ">\n"
  for value in values {
    result = result + "- " + __workflow_escape_prompt_text(value) + "\n"
  }
  return result + "</" + name + ">\n"
}

fn __workflow_push_checks(out, checks) {
  if len(checks ?? []) == 0 {
    return out
  }
  var result = out + "<checks>\n"
  for check in checks {
    result = result + "- " + __workflow_escape_prompt_text(check?.kind ?? "")
      + ": "
      + __workflow_escape_prompt_text(check?.value ?? "")
    if check?.note != nil {
      result = result + " (" + __workflow_escape_prompt_text(check.note) + ")"
    }
    result = result + "\n"
  }
  return result + "</checks>\n"
}

fn __workflow_render_contract(contract) {
  var out = "\n<contract>\n"
  out = __workflow_push_optional_field(out, "source_node", contract?.source_node)
  out = __workflow_push_optional_field(out, "summary", contract?.summary)
  out = __workflow_push_optional_field(out, "command", contract?.command)
  out = __workflow_push_int_field(out, "expect_status", contract?.expect_status)
  out = __workflow_push_optional_field(out, "assert_text", contract?.assert_text)
  out = __workflow_push_optional_field(out, "expect_text", contract?.expect_text)
  out = __workflow_push_string_list(out, "required_identifiers", contract?.required_identifiers ?? [])
  out = __workflow_push_string_list(out, "required_paths", contract?.required_paths ?? [])
  out = __workflow_push_string_list(out, "required_text", contract?.required_text ?? [])
  out = __workflow_push_checks(out, contract?.checks ?? [])
  out = __workflow_push_string_list(out, "notes", contract?.notes ?? [])
  return out + "</contract>"
}

/** workflow_render_verification_context. */
pub fn workflow_render_verification_context(contracts = nil) {
  if len(contracts ?? []) == 0 {
    return ""
  }
  var out = workflow_verification_context_intro() + "\n"
  for contract in contracts {
    out = out + __workflow_render_contract(contract)
  }
  return out
}

fn __workflow_stage_label(label) {
  let trimmed = trim(label ?? "")
  if trimmed == "" {
    return "Task"
  }
  return trimmed
}

/** workflow_prepare_stage_prompt. */
pub fn workflow_prepare_stage_prompt(config = nil) {
  let opts = config ?? {}
  let rendered_context = opts?.rendered_context
    ?? workflow_render_artifacts_context(opts?.artifacts ?? [], opts?.context_policy ?? {})
  let rendered_verification = opts?.rendered_verification
    ?? workflow_render_verification_context(opts?.verification_contracts ?? [])
  let prompt = workflow_stage_prompt(
    {
      label: __workflow_escape_prompt_text(__workflow_stage_label(opts?.task_label)),
      instructions: trim(opts?.task ?? ""),
      verification: trim(rendered_verification),
      context: trim(rendered_context),
    },
  )
  return {prompt: prompt, rendered_context: rendered_context, rendered_verification: rendered_verification}
}