Exec Summary

Turn the last substantive assistant message, or the user-provided source if one is provided, into a short decision-ready summary.

Goal

Help the user decide what to do next. Preserve only the information that affects understanding, risk, priority, or choice. Do not add new facts, analysis, or recommendations that were not supported by the source.

Style rules

• Use plain language.
• Be useful and short, but not tiny.
• Target 150–300 words unless the source is extremely small or the user asks for a different length.
• Put the bottom line first.
• Remove ornaments: no hype, no emojis, no decorative phrasing, no throat-clearing.
• Keep qualifiers when they matter, especially uncertainty, assumptions, constraints, risk, or validation status.
• Prefer concrete nouns and verbs over abstract summaries.
• Do not include process narration unless it affects the decision.
• Do not cite every detail. Include file names, commands, dates, metrics, or dependencies only when they change the decision.