pi-google-url-context

Google native URL context extension for the pi coding agent.

This package is the standalone extraction of senpi's former builtin google-url-context extension.

Behavior

The extension does not register a new tool. It intercepts Google provider requests before they are sent and ensures a native urlContext tool is present for google-generative-ai / google-vertex payloads when URL context is enabled via default-on env toggle.

Case	Result
API is google-generative-ai or google-vertex, PI_GOOGLE_URL_CONTEXT is unset/empty/truthy/unknown, and no Tool object has a urlContext key	injects a new Tool entry { urlContext: {} }
Existing Tool object already has urlContext key (any value)	preserves caller payload without duplication or overwrite
Existing Tool object has only functionDeclarations	keeps that object and adds separate { urlContext: {} } entry
PI_GOOGLE_URL_CONTEXT is falsy (0/false/no/off)	no-op
API is non-Google	no-op

Truthy values for PI_GOOGLE_URL_CONTEXT are: 1, true, yes, on (case-insensitive, surrounding whitespace allowed). Unknown values follow documented default-on behavior.

It also appends a system-prompt section for Google sessions indicating native url_context availability when enabled.

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-google-url-context

# From git
pi install git:github.com/code-yeongyu/pi-google-url-context

# Manual placement
git clone https://github.com/code-yeongyu/pi-google-url-context ~/.pi/agent/extensions/pi-google-url-context
cd ~/.pi/agent/extensions/pi-google-url-context && npm install

# Dev / one-shot test
pi -e /path/to/pi-google-url-context/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/google-url-context/index.ts in the senpi-mono fork of pi-mono.

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.