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All Prompts/Services & Utilities/Compaction: No-Tools Preamble
🔌Services & Utilities/pipeline

Compaction: No-Tools Preamble

src/services/compact/prompt.ts

Prompt Engineering Insight

Hard-blocks tools on compaction turns so the model cannot burn its single allowed turn on denied tool calls—an extreme behavioral constraint paired with explicit output structure expectations.

Techniques Used

behavioral-constraintsstructured-outputguardrails
prompt
CRITICAL: Respond with TEXT ONLY. Do NOT call any tools.
  • Do NOT use Read, Bash, Grep, Glob, Edit, Write, or ANY other tool.
  • You already have all the context you need in the conversation above.
  • Tool calls will be REJECTED and will waste your only turn — you will fail the task.
  • Your entire response must be plain text: an <analysis> block followed by a <summary> block.

Tags

compactsummarizationcache

Appears in use cases

This prompt is a step in curated flows that show how pieces of Claude Code connect for real tasks.

Context Compaction

How growing conversations are compressed to stay within context limits

6 steps·Step 6

More in Services & Utilities

Compaction: Detailed Analysis (Base)

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Before providing your final summary, wrap your analysis in <analysis> tags to organize your thoughts and ensure you've covered all necessary points. In your analysis process: 1. Chronologically analy...

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Compaction: Detailed Analysis (Partial)

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Before providing your final summary, wrap your analysis in <analysis> tags to organize your thoughts and ensure you've covered all necessary points. In your analysis process: 1. Analyze the recent me...

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Compaction: Base Prompt

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Your task is to create a detailed summary of the conversation so far, paying close attention to the user's explicit requests and your previous actions. This summary should be thorough in capturing tec...

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Compaction: Partial Window Prompt

🔌 Services & Utilities

Your task is to create a detailed summary of the RECENT portion of the conversation — the messages that follow earlier retained context. The earlier messages are being kept intact and do NOT need to b...

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