@nicoalbanese
I have already implemented the changes to the project , was just adding the test cases before making the pr.

Reading through the doc i found that anthropic expects request body to contain a context_management object with this structure:

Tool_use:

    edits: [
      {
        type: "clear_tool_uses_20250919",
        trigger: {type: "input_tokens", value: 30000},
        keep: {type: "tool_uses",value: 3},
        clear_at_least: {type: "input_tokens",value: 5000},
        exclude_tools: ["web_search"]
      }
    ]

Thinking block:

edits: [
      {
        type: "clear_thinking_20251015",
        keep: {type: "thinking_turns",value: 2} | 'all'
      }
   ]

and in the response field we get the data back in this form

"context_management": {
        "applied_edits": [
            {
                "type": "clear_thinking_20251015",
                "cleared_thinking_turns": 3,
                "cleared_input_tokens": 15000
            },
            {
                "type": "clear_tool_uses_20250919",
                "cleared_tool_uses": 8,
                "cleared_input_tokens": 50000
            }
        ]
    }

So I first wrote the type defintion for the both response and request body in the file anthropic-message-api.ts
Then added the context_management field in the provider options in the file anthropic-message-options.ts
Then added context_management to the request body in getArgs() method
Then parsed the response in doGenerate() method
Then parsed the streaming response in doStream() method
Then added context_management to the metadata interface

Right now , i was dealing with the test cases , many of the previously written test cases are failing , i think its because i have updated the metadata. I'll make the pr once all the test pass.

Anthropic: implement context_management #10485

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