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CommunityJev Tools & CLIs
Pi Codemode
Pi extension that replaces many small tool calls with one typed TypeScript execute_tools call, type-checked before running in a sandbox.
- Stars
- 27
- Language
- TypeScript
- License
- MIT
- Published by
- Community
- Author
- boozedog
- Last verified
- Oct 2026
About this project
Pi Codemode is a Pi extension that replaces many small tool calls with one typed executetools call. The model writes a TypeScript code body, Pi type-checks it, then runs it in a sandbox with explicit tool globals. Install the package in Pi as an extension package, then start Pi in a project as usual. Codemode starts in configured mode; the default is on, which exposes executetools plus Pi's normal non-bash tools. /codemode on exposes executetools plus normal non-bash tools, write-locked to the project root.
Quoted from the project's README. Read the full README.
Used inJev for Software & DevTools
- Languages
- TypeScript
Highlights
- Single execute_tools call takes a TypeScript body, type-checks it first, then runs it with explicit tool globals.
- Mode commands switch between locked-down, bash-enabled, and normal Pi toolsets with a documented write-door matrix.
- Built-in read, write, edit, MCP discovery, typed CLI operations, npm-script helpers, and print output capture.
- Optional Jev decision forensic calls composed in code with key resolution from environment, config, or key file.
Watch out
Pi extension setup with mode commands to learn; write behavior changes sharply between on, yolo, and off modes. Copy reviewed against the repository README on 2026-10-04, not from running it.
Questions about this entry
Short answers drawn from the linked project or page.
On mode strips native write, edit, and bash and leaves root-scoped patch tools plus allowlisted CLI operations. Yolo adds native bash as an escape hatch; off restores normal Pi tools.
There is no shell-string or raw argv passthrough. Only explicitly allowlisted typed CLI operations run as host commands, with capped output and clear errors for denied operations.
When a TypeSafe key is configured it injects guest jev.ask for noul, choice, and score answers; without a key the global, types, and HTTP client are absent and nothing changes.
Write the body with read, write, edit, MCP, CLI, and print globals, use Promise.all for independent reads, and pass tricky quoted content through the strings parameter.
It takes a TypeScript code body, not a full function. Pi type-checks it first, so type errors are reported before execution and invalid code has no side effects; runtime errors come back as tool errors, and print or console.log output is captured before the return value.
Use the strings parameter: put the content in strings as JSON and read it inside code as π.name, so backticks, ${...}, nested quotes and code blocks only need JSON escaping rather than JavaScript string-literal escaping.
pi -p --run 'daily-mail date=2026-08-10' runs a skill or TypeScript entry off-model; the job name and arguments are one quoted string, read from args (for example args.date). A skill that sets handoff: true sends its markdown body to the normal model turn afterward with {{result}}, {{result.json}} and {{args}}.
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