STR-016 Context default layer: document

Provide a long-document summary

IF a document is long, high-stakes, or cognitively dense, THEN add an accurate summary and navigation ELSE retain.

Why the rule exists

A summary supports orientation, memory, and selective reading.

Condition

The rule fires when this evaluates true. Paths marked below must be present in the fact base; the engine reports the rest rather than guessing them.

ANY
- document.word_count gte 2500
- context.stakes in [high, safety_critical]
- document.concept_density eq "high"

Facts this rule reads

Fact paths read by STR-016 and whether the analyser derives them
Path	Source
`document.word_count`	Derived from text
`context.stakes`	You supply it
`document.concept_density`	You supply it

Then

insert — target document.summary
insert — target document.navigation

Else

retain — target current_text, No triggering condition is present.

LAKA

Smallest sufficient intervention

Yes

Primary axes

Sources

Making Content Usable for People with Cognitive and Learning Disabilities — W3C link
Clear words, simple voice and tense, explicit instructions, and supportive structure.
Developing Quality Technical Information — Michelle Carey; Moira Lanyi; Deirdre Longo; et al.
Quality dimensions for usable technical information.

The raw rule record

Verbatim from 10-paragraph-document-rules.json. Also available at /v1/rules/STR-016.

{
  "id": "STR-016",
  "name": "Provide a long-document summary",
  "domain": "structure",
  "layer": "document",
  "strength": "context_default",
  "human_logic": "IF a document is long, high-stakes, or cognitively dense, THEN add an accurate summary and navigation ELSE retain.",
  "when": {
    "any": [
      {
        "path": "document.word_count",
        "operator": "gte",
        "value": 2500
      },
      {
        "path": "context.stakes",
        "operator": "in",
        "value": [
          "high",
          "safety_critical"
        ]
      },
      {
        "path": "document.concept_density",
        "operator": "eq",
        "value": "high"
      }
    ]
  },
  "then": [
    {
      "action": "insert",
      "target": "document.summary",
      "position": "front",
      "include": [
        "purpose",
        "key_points",
        "actions_or_decisions"
      ]
    },
    {
      "action": "insert",
      "target": "document.navigation",
      "when": "multiple_sections"
    }
  ],
  "else": [
    {
      "action": "retain",
      "target": "current_text",
      "reason": "No triggering condition is present."
    }
  ],
  "unless": [],
  "because": "A summary supports orientation, memory, and selective reading.",
  "diagnostics": [],
  "examples": {},
  "source_ids": [
    "WEB-006",
    "BK-024"
  ],
  "laka": {
    "smallest_sufficient_intervention": true,
    "primary_axes": [
      "scope",
      "depth",
      "magnitude",
      "reversibility"
    ]
  }
}