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/**
* Failure vocabulary.
*
* Every one of these is *thrown*, never returned. pi only sets `isError: true`
* on a tool result when `execute()` throws — a returned object with an `error`
* field looks to the model exactly like a successful search that found nothing.
*
* `SearchChallengeError` is the one the agent is expected to act on rather than
* just report: it means a human has to touch the browser before search can work
* again, so its message says so in words the agent can pass to the operator.
*/
/** The search engine served a captcha, consent wall, or other human check. */
export class SearchChallengeError extends Error {
override readonly name = "SearchChallengeError";
/** Machine-readable flavour of the challenge, for callers that branch on it. */
readonly challenge: string;
/** The page the human needs to visit to clear it. */
readonly pageUrl: string;
/** Which browser is blocked, e.g. "10.88.0.25:9223 (built-in default)". */
readonly endpoint: string;
constructor(options: { challenge: string; pageUrl: string; endpoint: string; detail?: string | undefined }) {
super(
[
`Search is blocked by a human verification challenge (${options.challenge}).`,
options.detail ? `Page said: ${options.detail}` : null,
`This cannot be solved by the agent — a person has to clear it in the browser at ${options.endpoint}.`,
`Ask the user to open ${options.pageUrl} in that Chrome, complete the challenge or accept the consent dialog,`,
`then retry the search. The cookie it sets persists in that browser profile, so one pass unblocks later searches.`,
]
.filter((line) => line !== null)
.join(" "),
);
this.challenge = options.challenge;
this.pageUrl = options.pageUrl;
this.endpoint = options.endpoint;
}
}
/** The browser could not be reached or spoke CDP badly. */
export class BrowserUnavailableError extends Error {
override readonly name = "BrowserUnavailableError";
}
/** The search itself ran but produced nothing usable. */
export class NoResultsError extends Error {
override readonly name = "NoResultsError";
}
/** The per-search deadline expired, or the user pressed Esc. */
export class SearchAbortedError extends Error {
override readonly name = "SearchAbortedError";
}
export const messageOf = (e: unknown): string => (e instanceof Error ? e.message : String(e));
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