# Prefix Pruner

> Prefix prune le contexte — arbre de préfixes, diffing, élague les sections inutilisées. Use when you want to cut 5-10% more tokens by removing dead context.

- Skill: `zedarvates/prefix-pruner` (Agent Skill, multi-file: 4 files)
- Install (CLI): `npx skillmds@latest add zedarvates/prefix-pruner`
- Raw SKILL.md: https://api.skillmd.com/api/skills/zedarvates/prefix-pruner/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: zedarvates (https://skillmd.com/u/zedarvates)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/zedarvates/prefix-pruner

---

# Prefix Pruner

Élimine les sections de contexte que l'agent n'utilise jamais.

## Stratégies

| Stratégie | Description | Gain |
|-----------|-------------|------|
| `auto` | Prefix tree + usage tracking | 5-10% |
| `aggressive` | Supprime toute section < 0.3 usefulness | 10-15% |
| `conservative` | Ne supprime que les sections jamais utilisées | 2-5% |

## Usage

```bash
python -m skills.prefix_pruner.cli prune < context.txt
python -m skills.prefix_pruner.cli tree
python -m skills.prefix_pruner.cli stats
```