{
  "id": "capability:supports-compaction",
  "_kind": "Capability",
  "_file": "capabilities/capabilities/harness-capabilities.yaml",
  "_cluster": "capabilities",
  "attributes": {
    "displayName": "Supports context compaction",
    "description": "The agent implements client-side context compaction — when context\nwindow usage exceeds a threshold, the harness summarizes or truncates\nolder conversation turns to free space. Distinct from provider-side\ncontext management. Strategies include branch summarization, sliding\nwindow, and selective pruning.\n",
    "appliesToNodeKinds": [
      "AgentVersion",
      "AgentRuntimeImpl",
      "AgentPlatformImpl"
    ],
    "category": "session"
  },
  "outgoingEdges": [],
  "incomingEdges": [
    {
      "from": "agentVersion:omp:15-7-3",
      "to": "capability:supports-compaction",
      "kind": "supports",
      "attributes": {
        "versionRange": "15.7.3",
        "level": "full",
        "notes": "Shake compaction provides client-side heavy-region detection,\nelision, and extractive compression through an injected completion\nbackend, including local-on-device backend support.\n"
      }
    },
    {
      "from": "agentVersion:pi:ge-0-75-5",
      "to": "capability:supports-compaction",
      "kind": "supports",
      "attributes": {
        "versionRange": ">=0.77.0",
        "level": "full",
        "notes": "Client-side branch-summarization compaction via AgentHarness.\nConfigurable threshold and summarization strategy.\n"
      }
    },
    {
      "from": "agent-platform-impl:pi.platform@current",
      "to": "capability:supports-compaction",
      "kind": "supports",
      "attributes": {
        "versionRange": ">=0.0.0",
        "level": "full",
        "notes": "Client-side branch-summarization compaction with configurable\nthreshold and strategy settings.\n"
      }
    },
    {
      "from": "agentVersion:pi:ge-0-75-5",
      "to": "capability:supports-compaction",
      "kind": "supports",
      "attributes": {
        "versionRange": ">=0.77.0",
        "level": "full",
        "notes": "Client-side branch-summarization compaction via AgentHarness.\nConfigurable threshold and summarization strategy.\n"
      }
    }
  ]
}