claude-code - 💡(How to fix) Fix [Bug] Explore agents unable to execute due to prompt-size limit constraints [1 comments, 2 participants]

[{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 204858 tokens > 200000 maximum"},"request_id":"req_011CZqFQ4PQ9XvBukUL35UEx"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:02.866Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 207565 tokens > 200000 maximum"},"request_id":"req_011CZqFQNoBU3EondqH3WUPY"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:05.485Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 204858 tokens > 200000 maximum"},"request_id":"req_011CZqFQnet32na8Qq77huXu"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:11.929Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 208914 tokens > 200000 maximum"},"request_id":"req_011CZqFR2zLouEqTnqggTBjt"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:13.797Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 204858 tokens > 200000 maximum"},"request_id":"req_011CZqFRQ75wCWwce5kse9AD"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:20.693Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 212958 tokens > 200000 maximum"},"request_id":"req_011CZqFRgdGCdbffFcefopUP"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:22.800Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 204858 tokens > 200000 maximum"},"request_id":"req_011CZqFS2sRVWcZhU2E7wWLA"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:29.442Z"},{"error":"Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"prompt is too long: 213379 tokens > 200000 maximum"},"request_id":"req_011CZqFSKYXU84q3L9o95BNi"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:51717)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4942)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:31.108Z"},{"error":"Error: Conversation too long. Press esc twice to go up a few messages and try again.\n at EVH (/$bunfs/root/src/entrypoints/cli.js:4221:938)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-07T23:06:31.110Z"},{"error":"Error: Error during compaction: Conversation too long. Press esc twice to go up a few messages and try again.\n at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:5184:119…

TL;DR

Reduce the prompt size to below the 200,000 token limit to resolve the "prompt is too long" error.

Guidance

• Identify and shorten the prompts that exceed the 200,000 token limit.
• Consider implementing a prompt truncation or summarization mechanism to prevent similar errors in the future.
• Review the codebase for existing patterns or utilities that can help with prompt size management.
• Verify that the error messages are accurately reporting the prompt size and adjust the truncation strategy accordingly.

Example

No specific code snippet can be provided without more context, but a general approach might involve checking the length of the prompt before sending it and truncating or splitting it if necessary.

Notes

The provided issue content is truncated, which may limit the ability to provide a comprehensive solution. Additionally, the root cause of the issue appears to be related to the prompt size exceeding the maximum allowed limit, but there might be other factors contributing to the problem.

Recommendation

Apply a workaround to truncate or manage prompt sizes to prevent the "prompt is too long" error, as the issue seems to be related to exceeding the maximum allowed token limit.