pi-lovely-web

Lovely Pi extension for accessing the web.

Supply chain

This extension uses plain REST API - not the provider-specific packages. We add zero dependencies, minimizing the supply chain attack surface.

Install

pi install npm:@xl0/pi-lovely-web

Tools

• web_search - Compact search results. Set fetchResult:true to include markdown from the first result when web_fetch is configured.

The plain-text tool output looks like this:

web_search "pi coding agent harness earendil" (web, limit 5)

1.
   title: GitHub - earendil-works/pi: AI agent toolkit
   url: https://github.com/earendil-works/pi
   desc: Pi is an AI agent toolkit for coding: CLI, unified LLM API, TUI/Web UI libraries, Slack bot, and vLLM pods.

2.
   title: packages/coding-agent/README.md at main · earendil-works/pi
   url: https://github.com/earendil-works/pi/blob/main/packages/coding-agent/README.md
   desc: The page describes the pi project from earendil-works, a minimal, extensible terminal coding harness designed to adapt to your workflow.

3.
   title: Pi Coding Agent
   url: https://pi.dev/
   desc: Pi Coding Agent is a minimal, highly customizable terminal coding harness.

• web_fetch - The single web page in markdown format. Set findText to an array of strings to return snippets from the fetched markdown. Optional findMode is fuzzy (default, normalized chunk match), exact (case-sensitive literal), or lower (case-insensitive literal). When smart search is enabled, set smartQuery to have a Pi text model answer/extract from the fetched markdown; findText and smartQuery can be combined.
• web_image - The single image, returned as media content. Respects the Pi image resizing settings:

Configuration

Run /lovely-web in Pi to configure providers interactively:

The settings are stored in ~/.pi/agent/xl0-pi-lovely-web.json (global) or .pi/xl0-pi-lovely-web.json (project):

{
  "webSearchProvider": "firecrawl",
  "webFetchProvider": "firecrawl",
  "webImageEnabled": true,
  "smartSearchEnabled": false,
  "smartSearchModel": "anthropic/claude-sonnet-4-5",
  "smartSearchMaxTokens": 2000,
  "smartSearchSystemPrompt": "Process one web_fetch result for a coding agent.\nUse only facts explicitly stated in the provided page text.\n...",
  "firecrawlApiKey": "fc-...",
  "exaApiKey": "...",
  "tavilyApiKey": "...",
  "braveApiKey": "..."
}

API keys can also be set via environment variables: FIRECRAWL_API_KEY, EXA_API_KEY, TAVILY_API_KEY, BRAVE_API_KEY.

Search defaults to Firecrawl. Fetch defaults to disabled; configure webFetchProvider to enable web_fetch and fetchResult:true first-result fetches from web_search. Set webSearchProvider or webFetchProvider to disabled to remove that tool from Pi's active tool list. Set webImageEnabled:false to disable web_image.

web_fetch also supports findText, an array of strings to search over fetched markdown. It returns deduped plain-text snippets with 500 characters of context; overlapping contexts are merged, each snippet lists matching queries and counts, UI rendering highlights hits, and returned snippets are capped to about 20k raw characters total. findMode defaults to fuzzy; exact preserves case, lower is case-insensitive literal, and fuzzy splits text on blank lines, normalizes accents/case/punctuation, scores chunks by query-token coverage plus typo-tolerant token matches, and highlights matched source tokens in the UI.

When smartSearchEnabled is true, smartQuery post-processes web_fetch output with a Pi text model. It supports grounded summaries, extraction, comparisons, troubleshooting, limits/config/API details, security/migration notes, and verbatim code/command/schema examples. The prompt adapts the output format to the query, uses only explicitly stated page facts, preserves exact concrete fields, quotes/source-contexts important claims when useful without repeating the single fetched URL in every evidence bullet, and says Not found on page. for absent requested info. /lovely-web populates smartSearchModel from authenticated Pi text models and defaults to the current model when unset; invalid stored values warn and fall back to the default. smartSearchSystemPrompt defaults to the built-in prompt and can be edited. findText and smartQuery are independent: both read the raw fetched markdown and their outputs are concatenated.

Smart input is limited to half the selected model context estimate. If model context is unknown, the fallback limit is about 60k estimated tokens. If input is trimmed, the tool result includes a visible note with kept/original character counts.

Old xl0-web-tools.json configs are migrated to xl0-pi-lovely-web.json on load, then deleted.

web_search and web_fetch parameters are provider-specific and update dynamically when you change providers. Changing providers changes the tool schema and potentially may confuse the model if you change the schema mid-session, but unlikely with modern LLMs.

Search params:

Provider	Extra web_search params
Firecrawl	source selects web/news/images; category filters to github/research/pdf; location/country localize; tbs applies Google-style time filters.
Exa	category narrows Exa's result type; country localizes.
Tavily	topic selects general/news/finance; includeImages returns image URLs; country localizes; timeRange limits recency.
Brave Search	source selects web/news/images; country localizes; searchLang sets language; freshness limits recency.

Fetch params:

Provider	Extra web_fetch params
Firecrawl	waitFor waits before scraping, in ms.
Exa	maxAgeHours allows cached page content up to that age.
Tavily	extractDepth selects basic or advanced extraction.

web_image fetches a direct image URL without provider config/API keys and returns a short text note plus image content to vision-capable models, matching Pi's read image behavior. Supported MIME types: PNG, JPEG, WebP, GIF. Defaults to a 5 MB download cap and resizes through Pi's inline image helper before returning content.

Providers

Provider	Search	Fetch	Auth
Firecrawl	✓	✓	Authorization: Bearer
Exa	✓	✓	x-api-key
Tavily	✓	✓	Authorization: Bearer
Brave Search	✓	-	X-Subscription-Token

Related projects

Pi Lovely Dev Tools	interactive debugging helpers /tool /show-sysprompt
Pi Lovely Codex	GPT fast mode and Codex-style apply_patch
Pi Lovely IDE	IDE integration
Pi Lovely Config	scoped config helpers for Pi extensions

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