Core of giving effective feedback in Claude conversations: say "what's right and what's wrong," not just "wrong." Effective feedback has two elements: what to keep (so Claude knows what not to change) + what to change (specific direction for revision). This makes each conversation round a precise step forward rather than guessing from zero every time.
Why "wrong, redo" has poor results: Claude receiving vague negative feedback can only "re-guess what you want" — it doesn't know if tone is wrong, direction is wrong, or format is wrong, so it may repeat the same mistake. Each piece of unclear feedback is wasted time in an inefficient loop between you and Claude.
Why examples outperform descriptions: human language is limited in its ability to describe style — "conversational" means A to you but Claude interprets it as B. A concrete text example eliminates this ambiguity: Claude sees the example and directly learns the target linguistic characteristics, sentence length, and vocabulary habits. This is especially effective for tasks with specific brand voice or personal writing style requirements.
Practice exercise you can do now: find a previous Claude conversation where you felt output quality was insufficient, try giving explicit feedback using the "keep X, change Y" format, and see if the next output improves significantly. This exercise builds your intuition for "giving effective feedback" — the single most important Skill for getting consistently high-quality results from Claude.
Claude's first answer isn't quite what you wanted — totally normal. The problem is most people either give up, start a new conversation from scratch, or just say "not good, redo" without telling Claude what's wrong.
The right approach: learn to give effective feedback within the same conversation so each round brings output closer to what you need.
Least effective: "This isn't what I wanted, rewrite it" Most effective: "The direction is right but the tone is too formal — I need a more conversational version"
Good feedback contains two elements: what to keep ("the direction is right", "this example is good") and what to change ("make the tone conversational", "cut the length in half", "add a concrete number to support the argument").
Wrong tone/style: Describe your target style with an adjective combination — "like talking to a friend, not writing a report; some personal opinion; shorter sentences."
Too long/short: Specify target length and explicitly say what to keep and what to cut.
Direction completely wrong: Explain what you actually wanted vs what Claude understood, with a concrete example.
Part right, part wrong: Explicitly name which parts to keep and which to revise.
Wrong format: Show the format you want, ideally with an actual example.
If you want a specific style, paste an example and say "write in this style." More accurate than any description — it directly shows "this is the feeling I want."