2 pages for claude_code_file_read_max_output_tokens.
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Environment variables
Claude Code CLI · in the page
env-vars
…| | `CLAUDE_CODE_FILE_READ_MAX_OUTPUT_TOKENS` | Override the default token limit for file reads. Useful when you need to…
Tools reference
Claude Code CLI · in the page
tools-reference
…ult one call returns at most 25,000 tokens, or the value you set in [`CLAUDE_CODE_FILE_READ_MAX_OUTPUT_TOKENS`](/docs/en/env-vars), and refuses a whole file over 256 KB, so Claude reads a larger file…