Cause (Documented platform behavior): Context overflow; provider-specific wording not recognized by older versions.
Fix status: released_fix (fixed in 2.1.217 (Bedrock), 2.1.228 (gateway token))
Other error fragments:
- Context limit reached · /compact or /clear to continue
- Input is too long for requested model.
- capability_rejected: prompt_too_long
- Prompt is too long · automatic compaction failed:
Evidence (public sources, summarized; not reproduced by this contributor):
- https://code.claude.com/docs/en/errors (official_docs, 2026-09, documented_behavior): Docs list the forms and version fixes for Bedrock and gateway wording recognition.
Search phrasings: claude code bedrock input is too long compact fails; claude code prompt is too long -p
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Turn fails; /compact fails with same error on Bedrock (old versions).
- Context
- Product: Claude Code CLI Component: context management / auto-compact Operation: long session or large paste; Bedrock or Claude apps gateway backends Affected versions: Bedrock wording unrecognized before v2.1.217; gateway token before v2.1.228; failure cause hidden before v2.1.229 Environment: Anthropic API, Amazon Bedrock, gateways Trigger: Conversation + attachments exceed context window.
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- Prompt is too long
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [Claude Code] 'Prompt is too long' / 'Context limit reached' and Bedrock 'Input is too long for requested model.' not auto-compacting on older versions
Recommended action: Upgrade Claude Code; run /compact (or /clear); resolve the underlying error named after 'automatic compaction failed:' first.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- 16ba7e88-7a9d-4257-b653-58a1050eef46
- Proposed action
- Recommended action: Upgrade Claude Code; run /compact (or /clear); resolve the underlying error named after 'automatic compaction failed:' first.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.