AGENT SKILL

Context Optimization

Techniques to maximize context window efficiency, reduce latency, and prevent 'lost in middle' issues through strategic masking and compaction.

License 许可
MIT
最近更新
2026-06-24
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01 前言 Front Matter

name
Context Optimization
metadata
{ "labels": [ "context", "optimization", "tokens", "memory", "performance" ], "triggers": { "files": [ "*.log", "chat-history.json" ], "keywords": [ "reduce tokens", "optimize context", "summarize history", "clear output" ] } }
description
Techniques to maximize context window efficiency, reduce latency, and prevent 'lost in middle' issues through strategic masking and compaction.

02 资源文件 4

03 SKILL.md 正文

Priority: P1 (OPTIMIZATION)

Manage the Attention Budget. Treat context as a scarce resource.

1. Observation Masking (Noise Reduction)

Problem: Large tool outputs (logs, JSON lists) flood context and degrade reasoning. Solution: Replace raw output with semantic summaries after consumption.

  1. Identify: outputs > 50 lines or > 1kb.
  2. Extract: Read critical data points immediately.
  3. Mask: Rewrite history to replace raw data with [Reference: <summary_of_findings>].
  4. See: references/masking.md for patterns.

2. Context Compaction (State Preservation)

Problem: Long conversations drift from original intent. Solution: Recursive summarization that preserves State over Dialogue.

  1. Trigger: Every 10 turns or 8k tokens.
  2. Compact:
    • Keep: User Goal, Active Task, Current Errors, Key Decisions.
    • Drop: Chat chit-chat, intermediate tool calls, corrected assumptions.
  3. Format: Update System Prompt or Memory File with compacted state.
  4. See: references/compaction.md for algorithms.

3. KV-Cache Awareness (Latency)

Goal: Maximize pre-fill cache hits.

  • Static Prefix: strict ordering: System -> Tools -> RAG -> User.
  • Append-Only: Avoid inserting into the middle of history if possible.

References

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