principle-guard-the-context-window

Routes large payloads to subagents and keeps summaries in the main context window.

3|2|Updated Aug 28, 2026

Search Tags:#summarization #context management #agent workflow #subagents #context window #token budget

Ready to run

npx skills add https://github.com/adjohn/pstack --skill principle-guard-the-context-window-adjohn

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Please help me install this Agent Skill.
Skill: principle-guard-the-context-window
Source: https://github.com/adjohn/pstack/tree/main/skills/principle-guard-the-context-window
Command: npx skills add https://github.com/adjohn/pstack --skill principle-guard-the-context-window-adjohn

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Long agent sessions fill the context window with verbose outputs, repeated file reads, and raw payloads, degrading reasoning quality and halting progress before the task completes. ## Core Features & Use Cases - Payload Isolation: Routes verbose outputs, screenshots, and large documents to subagents so the main thread receives only summaries. - Selective Reading: Skips files irrelevant to the current task instead of loading everything into context. - Inline Templates: Keeps frequently used references inside the skill file to avoid repeated read costs. - Use Case: When an agent fans out across many files or runs commands with large outputs, apply this principle to cap scope per phase, set turn budgets, and keep the main context lean. ## Quick Start Ask the agent to guard the context window by delegating large outputs to subagents and returning only summaries to the main thread.

Frequently Asked Questions about principle-guard-the-context-window

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I prevent context window overflow in long agent sessions?▼

Route verbose outputs, screenshots, and large documents to subagents so the main thread receives only summaries. Read files selectively based on relevance, and cap the number of files per phase with explicit turn budgets.

When should I use subagents instead of reading files directly?▼

Use subagents whenever a task produces large raw payloads such as long logs, big documents, or fan-out searches. The subagent processes the bulk data and returns a condensed summary, preserving main-context capacity.

Why does agent reasoning quality degrade in long sessions?▼

Context overflow creates compression artifacts and crowds out relevant information, since context spent in a session cannot be reclaimed. Every token that enters should earn its place to maintain reasoning quality.

Should templates be stored in separate reference files?▼

No. Templates and references used on every invocation belong inline in the skill file, because separate files cost a read each time they are needed. Reserve external files for infrequently accessed material.