Codemode input is now the script itself, optionally starting with a // @options {"timeout": N} line, and the tool declares a Lark grammar so capable models write raw JavaScript. Scripts can keep JSON values with store()/load(); successful writes are appended as codemode-store custom entries and read back from the current branch.
The MCP client, transports, and OAuth code load only when mcp.json lists a server, and connecting starts after the first render. The codemode sandbox loads on the first script; the tool description only needs the new pi-codemode/declarations entry. TUI startup matches main again.
Replaces the node:vm context with quickjs-wasi, so the sandbox is a separate wasm instance instead of a same-process V8 context. The worker stays to keep the host thread responsive; a shared interrupt flag stops spinning scripts on Bun, where worker.terminate() cannot interrupt wasm.
The Node bundle and the Bun binary build the worker as a separate entrypoint, and the Bun binary embeds quickjs.wasm.
Adds a built-in, opt-in codemode tool that runs model-written JavaScript in the codemode sandbox. Scripts call the other active tools as tools.<name>(args), including concurrently with Promise.all; only the return value, console output, and images attached with image() reach the model.
Nested calls run through the agent loop via a new AgentToolContext (5th execute argument, ctx.executeTool for extension tools), so argument validation and the beforeToolCall/afterToolCall hooks apply. Hooks and tool_call/tool_result events carry the parent call id.
Tools can declare outputSchema and return structuredContent; codemode passes that to scripts and falls back to text content otherwise. The codemode package gains globals, declaration rendering from JSON Schema, and optional deadlines.
