claude-code - 💡(How to fix) Fix [Bug] Context window exceeding 200k limit with Sonnet-4.6 causes unrecoverable session state

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Error Message

[{"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 Jn_ (/$bunfs/root/src/entrypoints/cli.js:7740:1645)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-29T16:51:14.452Z"}]

Code Example

[{"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 Jn_ (/$bunfs/root/src/entrypoints/cli.js:7740:1645)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-29T16:51:14.452Z"}]
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Bug Description While working on a task, Claude Code with Sonnet-4.6 model somehow exceeded 200k context limit and failed with "API Error: Usage credits required for 1M context". /compact now fails with the same error. The session is unusable.

Environment Info

  • Platform: linux
  • Terminal: WezTerm
  • Version: 2.1.156
  • Feedback ID: 2029eeda-3313-44b4-b8d4-cd1428fb3b3b

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 Jn_ (/$bunfs/root/src/entrypoints/cli.js:7740:1645)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-29T16:51:14.452Z"}]

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claude-code - 💡(How to fix) Fix [Bug] Context window exceeding 200k limit with Sonnet-4.6 causes unrecoverable session state