Session Summary Feature Added

In CC 2.1.116, the system prompt, skills, and tool descriptions were updated in several places.

• Post-turn session summary was added, allowing Claude Code sessions to be turned into structured JSON summaries, making it possible to sort multiple sessions like an inbox.
• The Dream memory consolidation documentation was cleaned up, clarifying that daily logs always exist, and adding prefix conventions such as > user, < assistant, . tool call, along with guidance to check the most recent 1-3 days of logs first.
• The connector management URL in the /schedule slash command was changed from claude.ai/settings/connectors to claude.ai/customize/connectors.
• The Build with Claude API and Building LLM-powered applications with Claude skills had their model migration paths organized, and /claude-api migrate was added as an executable guide.
• The Model migration guide now includes a warning that users who arrive via /claude-api migrate should run through the process starting from Step 0 (scope confirmation) in order, rather than jumping to the summary.
• The Simplify skill classified nested conditionals as a new anti-pattern, recommending flattening them using early return, guard clause, lookup table, etc.
• SendMessageTool was extended to accept attachment inputs more flexibly, allowing either a file path string or the {file_uuid, file_name, size, is_image} object returned by attach_file to be passed directly.