Reference

ctx_cache

Input contract and parameters for ctx_cache.

Status by featureReviewed September 2026

MCP tool · Session state

Call this tool through your MCP client. Its availability depends on your active configuration and profile.

This registry contract is separate from the SDK. For terminal commands, use the CLI reference.

Parameters

Generated from the registered input schema. “Required” reflects the schema; individual actions can impose additional requirements.

actionstringRequired

status|clear|invalidate

Accepted: statusclearinvalidate

pathstring

File path for invalidate action (only used with action=invalidate)

Exact JSON schema

Inspect the complete input schema

{
  "properties": {
    "action": {
      "description": "status|clear|invalidate",
      "enum": [
        "status",
        "clear",
        "invalidate"
      ],
      "type": "string"
    },
    "path": {
      "description": "File path for invalidate action (only used with action=invalidate)",
      "type": "string"
    }
  },
  "required": [
    "action"
  ],
  "type": "object"
}

Runtime description

The following is the tool's own agent-facing description, reproduced from the reviewed registry. It can contain implementation terminology; it does not expand the public stability commitment.

Read the agent-facing description

Cache operations — inspect, clear, or invalidate the read cache.
Actions: status lists cached files; clear empties all (recover token budget);
invalidate path=... refreshes a single entry.
Use to diagnose stale content or recover budget after large reads.
ANTIPATTERN: does NOT affect disk files — only cached read content.

Sources & versions3 references Reviewed 18 Sept 2026

mcp_manifest.rsrust/src/core/mcp_manifest.rsReviewed checkout
registry.rsrust/src/server/registry.rsReviewed checkout
dynamic_tools.rsrust/src/server/dynamic_tools.rsReviewed checkout

Core checkout: 50fbff09c9
Installed runtime: 3.10.2
SDK release: 1.1.0

Separate baselines for source, CLI/configuration and SDK contracts. Review does not certify every platform or integration.

Versions & compatibility