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Composable agent runtime monorepo built on the pi ecosystem
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Mario Zechner 213bc4df1c mom: add centralized logging, usage tracking, and improve prompt caching 
Major improvements to mom's logging and cost reporting:

Centralized Logging System:
- Add src/log.ts with type-safe logging functions
- Colored console output (green=user, yellow=mom, dim=details)
- Consistent format: [HH:MM:SS] [context] message
- Replace scattered console.log/error calls throughout codebase

Usage Tracking & Cost Reporting:
- Track tokens (input, output, cache read/write) and costs per run
- Display summary at end of each run in console and Slack thread
- Example: 💰 Usage: 12,543 in + 847 out (5,234 cache read) = $0.0234

Prompt Caching Optimization:
- Move recent messages from system prompt to user message
- System prompt now mostly static (only changes with memory files)
- Enables effective use of Anthropic's prompt caching
- Significantly reduces costs on subsequent requests

Model & Cost Improvements:
- Switch from Claude Opus 4.5 to Sonnet 4.5 (~40% cost reduction)
- Fix Claude Opus 4.5 cache pricing in ai package (was 3x too expensive)
- Add manual override in generate-models.ts until upstream fix merges
- Submitted PR to models.dev: https://github.com/sst/models.dev/pull/439

UI/UX Improvements:
- Extract actual text from tool results instead of JSON wrapper
- Cleaner Slack thread formatting with duration and labels
- Tool args formatting shows paths with offset:limit notation
- Add chalk for colored terminal output

Dependencies:
- Add chalk package for terminal colors
2025-11-26 18:04:16 +01:00
.husky Add husky pre-commit hook for formatting and type checking 2025-08-11 21:15:37 +02:00
packages mom: add centralized logging, usage tracking, and improve prompt caching 2025-11-26 18:04:16 +01:00
scripts Fix lockstep versioning and improve documentation 2025-11-13 23:37:43 +01:00
.gitignore feat: add cross-browser extension with AI reading assistant 2025-10-01 04:33:56 +02:00
.npmrc Initial monorepo setup with npm workspaces and dual TypeScript configuration 2025-08-09 17:18:38 +02:00
AGENTS.md mom: Slack bot with abort support, streaming console output, removed sandbox 2025-11-26 00:27:21 +01:00
biome.json mom: Single accumulated message per run, exclude data dir from biome 2025-11-26 01:21:45 +01:00
LICENSE Initial monorepo setup with npm workspaces and dual TypeScript configuration 2025-08-09 17:18:38 +02:00
package-lock.json mom: add centralized logging, usage tracking, and improve prompt caching 2025-11-26 18:04:16 +01:00
package.json mom: Slack bot with abort support, streaming console output, removed sandbox 2025-11-26 00:27:21 +01:00
pi-mono.code-workspace clean-up 2025-11-24 18:41:45 +01:00
README.md mom: Slack bot with abort support, streaming console output, removed sandbox 2025-11-26 00:27:21 +01:00
tsconfig.base.json feat: add cross-browser extension with AI reading assistant 2025-10-01 04:33:56 +02:00
tsconfig.json mom: Slack bot with abort support, streaming console output, removed sandbox 2025-11-26 00:27:21 +01:00

README.md

Pi Monorepo

Tools for building AI agents and managing LLM deployments.

Packages

Package Description
@mariozechner/pi-ai Unified multi-provider LLM API (OpenAI, Anthropic, Google, etc.)
@mariozechner/pi-agent Agent runtime with tool calling and state management
@mariozechner/pi-coding-agent Interactive coding agent CLI
@mariozechner/pi-mom Slack bot that delegates messages to the pi coding agent
@mariozechner/pi-tui Terminal UI library with differential rendering
@mariozechner/pi-web-ui Web components for AI chat interfaces
@mariozechner/pi-proxy CORS proxy for browser-based LLM API calls
@mariozechner/pi CLI for managing vLLM deployments on GPU pods

Development

Setup

npm install          # Install all dependencies
npm run build        # Build all packages
npm run check        # Lint, format, and type check

Development

Start watch builds for all packages:

npm run dev

Then run with tsx:

cd packages/coding-agent && npx tsx src/cli.ts
cd packages/pods && npx tsx src/cli.ts

Versioning (Lockstep)

All packages MUST always have the same version number. Use these commands to bump versions:

npm run version:patch    # 0.7.5 -> 0.7.6
npm run version:minor    # 0.7.5 -> 0.8.0
npm run version:major    # 0.7.5 -> 1.0.0

These commands:

  1. Update all package versions to the same number
  2. Update inter-package dependency versions (e.g., pi-agent depends on pi-ai@^0.7.7)
  3. Update package-lock.json

Never manually edit version numbers. The lockstep system ensures consistency across the monorepo.

Publishing

Complete release process:

  1. Update CHANGELOG.md (if changes affect coding-agent):

    # Add your changes to the [Unreleased] section in packages/coding-agent/CHANGELOG.md

  2. Bump version (all packages):

    npm run version:patch    # For bug fixes
npm run version:minor    # For new features
npm run version:major    # For breaking changes

  3. Update CHANGELOG.md version (if changes affect coding-agent):

    # Move the [Unreleased] section to the new version number with today's date
# e.g., ## [0.7.16] - 2025-11-17

  4. Commit and tag:

    git add .
git commit -m "Release v0.7.16"
git tag v0.7.16
git push origin main
git push origin v0.7.16

  5. Publish to npm:

    npm run publish        # Publish all packages to npm

License

MIT