{
  "handle": "ContextCompress",
  "mechanism": "A memory management primitive that uses {{compress}} to reduce the token footprint of a {{context}} while preserving critical {{state}}. It explicitly retains active {{constraint}}s and unresolved goals.",
  "gloss": "Semantic compression for long-running contexts",
  "sema_id": "sema:ContextCompress#mh:SHA-256:0bf5ce89d0ad9cac74bb69f253f06331989714d3c34bb0b385f9674439ce30b0",
  "sema_ref": "ContextCompress#0bf5",
  "sema_stub": "0bf5",
  "_meta": {
    "ring": 0,
    "tier": 1,
    "supersedes": [
      "sema:ContextCompress#mh:SHA-256:6dbdad39d305207e19f80a38fbb7622505d35259338335493053eb49cfe4d817",
      "sema:ContextCompress#mh:SHA-256:81bff304fb7fe57e71c152ac04faa987e06787468369ea65ab3cd2339c8739cb"
    ],
    "path": [
      "Mind",
      "Memory"
    ]
  },
  "invariants": [
    "Reduces the {{context}}'s token footprint by at least `min_reduction`.",
    "Retains every active {{constraint}} and every unresolved goal.",
    "Re-evaluates which constraints are active and which goals unresolved on each pass."
  ],
  "parameters": [
    {
      "name": "min_reduction",
      "type": "Ratio",
      "range": "(0.0, 1.0)",
      "description": "Share of the token footprint a pass must remove to count as a compression."
    }
  ],
  "failure_modes": [
    "Silent over-compression: a discarded {{constraint}} surfaces only when a later step violates it.",
    "Stale activeness: a pass reuses an earlier pass's list of active constraints instead of recomputing it, so a lapsed constraint is preserved and a new one is dropped."
  ],
  "dependencies": {
    "references": {
      "compress": "sema:Compress#mh:SHA-256:b585b8c462691d24d55deee575c5ade6d6510d9f99f9c59c38d2ff025ad3721c",
      "constraint": "sema:Constraint#mh:SHA-256:70136d525260a10eedf156aad1fe6c50510eadb10a89d063c7a85575b15708fc",
      "context": "sema:Context#mh:SHA-256:c1b72256dc4732033ee42cc07ff5d9fb60a7f1a3e5634449c343692a33340756",
      "state": "sema:State#mh:SHA-256:4f25e6a16ccd37dc0bc154cccc7055cb504d49daa8b712f372a425eb6c7b8cb2"
    }
  },
  "sema_layer": "Mind",
  "sema_category": "Memory",
  "used_by": {
    "references": {
      "CapacityPressure": "sema:CapacityPressure#mh:SHA-256:f06c432726ee48412ac4a49e9fa9ddc1a7272a298eaf984a9fef86e3fbcdf261",
      "DataMinimization": "sema:DataMinimization#mh:SHA-256:e8c8cd89b8e187d501000746c5216fef9ea41558a20fde07372881a2948994eb"
    }
  }
}