[Bug] Context window depletes rapidly in plan mode with MAX model

Bug Description
the context size has shrunk dramatically in practice compared to before. It is almost close to compact after 3-4 prompts in plan mode. And I'm on MAX. That is seriously unbearable, please address.

Environment Info

• Platform: darwin
• Terminal: vscode
• Version: 2.0.61
• Feedback ID: 14e675ad-3d72-46a1-be99-a2347af5063d

Errors

[{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-17T13:38:48.626Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-17T14:08:47.902Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-17T14:38:47.988Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-17T15:08:49.878Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-17T16:38:48.260Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-17T17:38:48.705Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-18T00:38:49.493Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-18T02:08:49.480Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-18T07:08:50.426Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1472:1825)\n    at Object.current (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2769:9766)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-12-18T07:38:50.570Z"},{"error":"HQ1: Another process is currently installing an update\n    at VMA (file:///Users/loicargelies/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claud

Note: Error logs were truncated.