context-window-pruner

name	Context Window Pruner
description	Optimize information density by filtering workspace files based on relevance to the current task. Excludes high-noise files (lockfiles, assets) and prioritizes source code matching semantic queries.
version	1.0.0
author	Antigravity Skills Library
created	"2026-01-16T00:00:00.000Z"
leverage_score	5/5

SKILL-008: Context Window Pruner

Overview

Large repos flood the agent's context window with noise. This skill generates a RELEVANT_FILES.txt list by aggressively pruning irrelevant directories and searching for files related to a specific "Focus".

Trigger Phrases

• focus on <topic>
• find relevant files for <task>
• prune context

Inputs

Parameter	Type	Required	Default	Description
--focus	string	Yes	-	Keywords to filter file names/content (e.g. "gas", "auth")
--max-files	int	No	50	Limit output size

Outputs

1. RELEVANT_FILES.txt: List of absolute paths to read.
2. Console output summarizing token savings (estimated).

Safety Checks

• Always respects .gitignore.
• Never includes binary files.
• Caps output to avoid context overflow.

Implementation

See prune_context.ps1.

Integration

$files = .\skills\08_context_pruner\prune_context.ps1 -Focus "EVM opcode"
# Agent works only with $files