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2026-05-06 18:56:51 +10:00

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TypeScript

/**
* @jmcombs/pi-tavily-search — Real-time web search for the Pi coding agent.
*
* Registers a `tavily_search` tool that the LLM can call to perform a Tavily
* web search. The Tavily API key is resolved from (in order):
* 1. `AuthStorage` under the "tavily" key (`~/.pi/agent/auth.json`)
* 2. The `TAVILY_API_KEY` environment variable
*
* See README.md for configuration details and recommended secret-storage
* patterns (env var, plain auth.json, or shell-resolved 1Password / Keychain).
*/
import { AuthStorage, type ExtensionAPI } from "@mariozechner/pi-coding-agent";
import { Type, type Static } from "typebox";
const TAVILY_SEARCH_ENDPOINT = "https://api.tavily.com/search";
// ── Tool parameter schema ──────────────────────────────────────────────
const tavilySearchSchema = Type.Object({
query: Type.String({
description: "The search query to perform.",
minLength: 1,
}),
});
export type TavilySearchInput = Static<typeof tavilySearchSchema>;
// ── Tavily API response types ──────────────────────────────────────────
//
// Documented at https://docs.tavily.com/documentation/api-reference/endpoint/search
// We model only the fields we actually consume; unknown fields pass through
// untouched in the `details.raw` field returned by the tool.
interface TavilySearchResult {
title: string;
url: string;
content: string;
score?: number;
raw_content?: string | null;
}
interface TavilySearchResponse {
query?: string;
answer?: string;
results?: TavilySearchResult[];
}
// ── Helpers ────────────────────────────────────────────────────────────
const MISSING_KEY_MESSAGE = [
"Error: No Tavily API key configured.",
"",
"Configure one of the following:",
" • Environment variable: export TAVILY_API_KEY=<your-key>",
' • ~/.pi/agent/auth.json: { "tavily": { "type": "api_key", "key": "<your-key>" } }',
' • Shell-resolved: { "tavily": { "type": "api_key", "key": "!security find-generic-password -ws tavily" } }',
' • 1Password: { "tavily": { "type": "api_key", "key": "!op read \'op://Personal/tavily/credential\'" } }',
].join("\n");
function formatResults(data: TavilySearchResponse, query: string): string {
const results = data.results ?? [];
if (results.length === 0) {
return `No search results found for "${query}".`;
}
const formatted = results
.map((r) => `Title: ${r.title}\nURL: ${r.url}\nContent: ${r.content}\n`)
.join("\n---\n");
const answer = data.answer ? `Answer: ${data.answer}\n\n` : "";
return `${answer}Search results for "${query}":\n\n${formatted}`;
}
// ── Extension factory ──────────────────────────────────────────────────
export default function (pi: ExtensionAPI): void {
const authStorage = AuthStorage.create();
pi.registerTool({
name: "tavily_search",
label: "Tavily Web Search",
description:
"Performs a web search using the Tavily API to get real-time information from the internet.",
parameters: tavilySearchSchema,
async execute(_toolCallId, params, signal, _onUpdate, _ctx) {
const apiKey = (await authStorage.getApiKey("tavily")) ?? process.env.TAVILY_API_KEY;
if (!apiKey) {
return {
content: [{ type: "text", text: MISSING_KEY_MESSAGE }],
details: { error: "missing_api_key" },
isError: true,
};
}
try {
const response = await fetch(TAVILY_SEARCH_ENDPOINT, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
api_key: apiKey,
query: params.query,
search_depth: "advanced",
max_results: 5,
}),
signal,
});
if (!response.ok) {
const errorText = await response.text();
return {
content: [
{
type: "text",
text: `Tavily API error: ${String(response.status)} ${response.statusText}\n${errorText}`,
},
],
details: { status: response.status, body: errorText },
isError: true,
};
}
const data = (await response.json()) as TavilySearchResponse;
return {
content: [{ type: "text", text: formatResults(data, params.query) }],
details: { raw: data },
};
} catch (error) {
const message = error instanceof Error ? error.message : String(error);
return {
content: [{ type: "text", text: `Error performing Tavily search: ${message}` }],
details: { error: message },
isError: true,
};
}
},
});
}