pi-openai-api-parallel-tool-calls

OpenAI parallel tool call policy extension for the pi coding agent. It ports the senpi-mono builtin openai-api-parallel-tool-calls extension into a standalone pi extension.

Behavior

The extension does not register a new tool. It intercepts provider requests before they are sent and adds parallel_tool_calls: true when all of these conditions hold:

Case	Result
OpenAI-family API payload has non-empty tools	adds parallel_tool_calls: true
Payload already has parallel_tool_calls	preserves the explicit value
Payload has no tools	leaves payload unchanged
Non-OpenAI API payload	leaves payload unchanged

Covered APIs are openai-completions, openai-responses, openai-codex-responses, and azure-openai-responses.

It also appends a system-prompt section that tells the model to batch independent tool calls and gather enough context before editing.

Installation

The package targets the pi coding agent. Pi loads extensions from ~/.pi/agent/extensions/, project .pi/extensions/, or via the --extension / -e CLI flag.

# From npm (once published)
pi install npm:pi-openai-api-parallel-tool-calls

# From git
pi install git:github.com/code-yeongyu/pi-openai-api-parallel-tool-calls

# Manual placement
git clone https://github.com/code-yeongyu/pi-openai-api-parallel-tool-calls ~/.pi/agent/extensions/pi-openai-api-parallel-tool-calls
cd ~/.pi/agent/extensions/pi-openai-api-parallel-tool-calls && npm install

# Dev / one-shot test
pi -e /path/to/pi-openai-api-parallel-tool-calls/src/index.ts

After installation, restart pi or run /reload inside an interactive session.

Development

npm install
npm test
npm run typecheck
npm run check
pi -e ./src/index.ts

The test suite uses vitest. TypeScript is strict, Node-only, and uses ESM imports with .js suffixes.

Origin

Ported from packages/coding-agent/src/core/extensions/builtin/openai-api-parallel-tool-calls.ts in code-yeongyu/senpi-mono.

License

MIT.

Related

• senpi — the fork/runtime these extensions are extracted from.
• Ultraworkers Discord — community link from the senpi README.
• Dori — the product powered by senpi under the hood.