PI from ScratchvsTools4AI
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
PI from Scratch
SaladDay · Agent framework
OSS
Panel
5.03 spec wins
- Reliability
- 3.3
- Usefulness
- 3.3
- Cost
- 9.2
- Longevity
- 4.3
“A tutorial for building a TypeScript coding agent that executes commands locally without a sandbox.”
Tools4AI
vishalmysore · Agent framework
OSSMCP
Panel
4.83 spec wins
- Reliability
- 4.3
- Usefulness
- 4.5
- Cost
- 6.5
- Longevity
- 3.7
“It describes itself as one hundred percent Java, a percentage nobody has felt the need to advertise since about 2009.”
Spec by spec
| Spec | PI from Scratch | Tools4AI |
|---|---|---|
| Architecture | ||
| Category | Agent framework | Agent framework |
| Runs | local | local |
| Platforms | macos, linux, windows | macos, linux, windows |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | Yes |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | No |
| Multi-file edits | Yes | No |
| Git operations | No | No |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | No | Yes |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | Gemini, OpenAI, Anthropic, LocalAI | |
| Bring your own model | Yes | Yes |
| Local models | No | Yes |
| Cost | ||
| Pricing model | free | byok |
| Starts at | n/a | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | MIT |
| GitHub stars | 1,261 | 190 |
Which one would each critic pick
| Critic | PI from Scratch | Tools4AI | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 4.3 | 5.3 | Tools4AI — Pick it if you have a Java application that should answer a sentence instead of a form; pick a coding agent if you wanted help writing the application itself. |
| El Crítico | 5.0 | 4.3 | PI from Scratch — This is a tutorial, not a production tool; it executes arbitrary shell commands on your local machine without a sandbox. |
| El Profesor | 3.3 | 4.3 | Tools4AI — The central claim is a mapping from natural language to actions, and no account of that mapping, its failure behaviour or its accuracy is offered anywhere. |
| La Inversora | 6.5 | 4.3 | PI from Scratch — This is a well-executed open-source tutorial, not a company; it's a portfolio piece for its creator, not a foundation for a business. |
| La Jefa | 3.3 | 4.3 | Tools4AI — This goes inside applications my company runs, which makes it a supply chain question rather than a tool question, and the supply chain here is one person. |
| El Hacker | 8.0 | 6.3 | PI from Scratch — PI from Scratch is an MIT-licensed tutorial, not a production tool, but it's the right way to learn how an agent works from the metal up. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.