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New functions/claude.fish wraps the claude CLI. Before launch it checks the current directory and the git project root; when CLAUDE.md is absent but AGENTS.md is present, it creates a relative symlink CLAUDE.md -> AGENTS.md so Claude Code picks up shared agent instructions without duplicating the file. Arguments are forwarded verbatim. Implemented as a C1 command shadow: when __fish_config_op_aliases (or the master __fish_config_opinionated) is disabled, the call passes through to the bare claude binary unchanged. Link-creation notices print to stderr in green. Documents the new shadow in docs/fish-config.md (section 5.12 AI tools, C1 component reference table, and C1 summary list) and adds a claude-cli anchor to docs/fish-config.index.