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Resolved 💬 2 comments Opened May 30, 2026 by kairin Closed Jun 3, 2026

Bug Description

Environment Info

Platform: linux
Terminal: vte-based
Version: 2.1.158
Feedback ID: 87ae89f7-028c-4f83-b70b-40b94103ccda

Errors

[{"error":"Error: Error during compaction: API Error: Usage credits required for 1M context · run /usage-credits to turn them on, or /model to switch to standard context\n    at Oi_ (/$bunfs/root/src/entrypoints/cli.js:6761:1646)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-30T10:53:40.359Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.6.custom.input_schema.type: Input should be 'object'\"},\"request_id\":\"req_011CbYnGxz17VdyKMcUUXVwM\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:63979)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:51:7694)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-30T12:49:43.730Z"}]

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Title:
[Bug] Tool input_schema validation fails during compaction

Body:
Bug Description

During context compaction, Claude Code is sending a tool with an invalid input_schema.type that doesn't conform to the Anthropic API spec. The API rejects the request with a 400 error requiring the
type to be 'object'.

Steps to Reproduce

Use Claude Code with a session that triggers context compaction
Wait for compaction to occur or trigger it manually
Observe API validation error on tool definitions

Environment Info

Platform: linux
Terminal: vte-based
Version: 2.1.158
Feedback ID: 775d1721-e8df-4b32-8f00-45d1e1f1c3e0

Error Message

Error: 400 {
"type": "error",
"error": {
"type": "invalid_request_error",
"message": "tools.6.custom.input_schema.type: Input should be 'object'",
"request_id": "req_011CbYnGxz17VdyKMcUUXVwM"
}
}

Stack Trace

at generate (/bunfs/root/src/entrypoints/cli.js:11:63979)
at makeRequest (/bunfs/root/src/entrypoints/cli.js:51:7694)
at processTicksAndRejections (native:7:39)

Expected Behavior

Tool definitions should always include a valid input_schema.type set to 'object' before being sent to the Anthropic API.

Actual Behavior

At least one tool definition (tools.6) is being sent with an invalid or missing input_schema.type, causing a 400 validation error during API calls.

Additional Context

This occurs during the compaction phase when the context window needs to be summarized
The error blocks context compression and prevents further operations
This is a recurring issue affecting multiple users