noheadroom 🗜

Reclaim your Pi context window. A local-first context compression bridge for the Pi Coding Agent, powered by Headroom.

noheadroom sits between Pi and your LLM, shrinking massive tool results and logs before they reach the model. Save tokens, keep more history, and prevent context-overflow in long sessions.

🚀 Why noheadroom?

Upstream Headroom protects common agent tool names like read and bash by default. In a standard Pi workflow, this means large file reads often bypass compression entirely.

noheadroom adapts the compression payload to bypass these exclusions while fully preserving your Pi session metadata.

Setup	Tool Name	Headroom Action	Savings
Vanilla	read	excluded_tool	0%
noheadroom	read	smart_crusher	60-90%

✨ Features

• Adaptive Payload Sanitization: renames tool calls during compression to ensure Headroom actually shrinks them.
• Pi-Native Metadata Preservation: original tool IDs and names are never modified in your real session.
• Deep Visibility: compression results appear in your terminal, the Pi footer, and as persistent entries in your session history.
• Docker-First Architecture: designed to work seamlessly with a local containerized backend.
• Local-First Privacy: by default, context never leaves your machine.

📦 Installation

Within the nothing Monorepo

noheadroom is built-in. Start Pi with compression enabled:

pi --headroom
# OR full tokenmaxxing:
pi --tkmx

Standalone (NPM)

pi install npm:@raquezha/noheadroom

🛠 Usage

Backend Setup

noheadroom requires a Headroom proxy running on 127.0.0.1:8788. Use the provided scripts in the nothing repo:

./scripts/headroom-up.sh      # Launch Docker backend
./scripts/headroom-health.sh  # Verify connection

Commands

Inside Pi, use the /headroom command:

• /headroom — Session statistics and status summary.
• /headroom on | off — Toggle compression live.
• /headroom health — Check if the backend is alive.
• /headroom stats — Inspect raw backend metrics.

🔧 Configuration

Settings are stored in ~/.pi/agent/headroom/settings.json:

{
  "enabled": true,
  "baseUrl": "http://127.0.0.1:8788",
  "autoStart": false,
  "minContextTokens": 10000,
  "minMessageChars": 2000
}

• autoStart: Set to false when using the Docker backend.
• minContextTokens: Compression kicks in once the context reaches this size.

🛡 Privacy & Security

Context is sent only to localhost (127.0.0.1) by default. Remote proxies are strictly blocked unless PI_HEADROOM_ALLOW_REMOTE=1 is explicitly set in your environment.

🤝 Attribution

This project is a fork of @ryan_nookpi/pi-extension-headroom by Ryan/Jonghakseo, modified to support Pi-specific tool-result adaptation. Licensed under MIT.

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nothing — Local-first agentic development setup.