Stopped reporting short text documents as partial pages

This commit is contained in:
Thorsten Sommer 2026-09-23 21:51:49 +02:00
parent d08382c52c
commit f2fe824708
Signed by untrusted user who does not match committer: tsommer
GPG Key ID: 371BBA77A02C0108
2 changed files with 23 additions and 8 deletions

View File

@ -17,6 +17,16 @@ public sealed class ReadWebPageTool(WebPageRetrievalService webPageRetrievalServ
private const int MAX_CONTENT_CHARACTERS = 100000;
private const int MAX_LOG_URL_LENGTH = 2000;
/// <summary>
/// Below how many characters the content of an HTML page is reported as partial.
/// </summary>
/// <remarks>
/// A page yielding a few sentences was most likely not extracted in full: its layout was
/// not understood, or JavaScript assembles it in the browser. A text document such as a
/// JSON response is exempt, because it arrives whole and a short one is simply short.
/// </remarks>
private const int MIN_COMPLETE_PAGE_CHARACTERS = 500;
private const string TIMEOUT_SECONDS_SETTING = "timeoutSeconds";
private const string MAX_CONTENT_CHARACTERS_SETTING = "maxContentCharacters";
private const string ALLOWED_PRIVATE_HOSTS_SETTING = "allowedPrivateHosts";
@ -44,7 +54,7 @@ public sealed class ReadWebPageTool(WebPageRetrievalService webPageRetrievalServ
Function = new()
{
Name = ToolSelectionRules.READ_WEB_PAGE_TOOL_ID,
DescriptionForLLM = "Load a single HTTP or HTTPS page and return its metadata and main content as Markdown. Static HTML is supported; JavaScript is not executed.",
DescriptionForLLM = "Load a single HTTP or HTTPS URL. HTML pages return their metadata and main content as Markdown; plain text, JSON, XML, CSV, and other text formats return their text unchanged. JavaScript is not executed, and binary files such as PDFs or images are not supported.",
Parameters = ToolParameterSchemaBuilder.Create()
.RequiredString(URL_ARGUMENT, "The full HTTP or HTTPS URL of the web page to read.")
.Build(),
@ -158,11 +168,12 @@ public sealed class ReadWebPageTool(WebPageRetrievalService webPageRetrievalServ
var extractedPage = retrievedPage.ExtractedPage;
var markdown = extractedPage.Markdown;
var originalContentCharacters = markdown.Length;
var isTextDocument = retrievedPage.ContentKind is WebContentKind.TEXT_DOCUMENT;
List<string> warnings = [];
if (string.IsNullOrWhiteSpace(markdown))
warnings.Add("No readable static page content was extracted. The page may require JavaScript, authentication, or browser cookies.");
else if (markdown.Length < 500)
warnings.Add(isTextDocument ? "The response was empty." : "No readable static page content was extracted. The page may require JavaScript, authentication, or browser cookies.");
else if (!isTextDocument && markdown.Length < MIN_COMPLETE_PAGE_CHARACTERS)
warnings.Add("Only a small amount of readable page content was extracted; the result may be incomplete.");
var contentTruncated = false;
@ -198,7 +209,7 @@ public sealed class ReadWebPageTool(WebPageRetrievalService webPageRetrievalServ
return new ToolExecutionResult
{
JsonContent = BuildModelContent(page, modelContent, retrievedPage.RetrievedAtUtc, originalContentCharacters, contentTruncated, warnings),
JsonContent = BuildModelContent(page, retrievedPage.ContentKind, modelContent, retrievedPage.RetrievedAtUtc, originalContentCharacters, contentTruncated, warnings),
Sources = string.IsNullOrWhiteSpace(modelContent.Markdown)
? []
: [new Source(string.IsNullOrWhiteSpace(modelContent.Title) ? page.FinalUrl.ToString() : modelContent.Title, page.FinalUrl.ToString(), SourceOrigin.TOOL)],
@ -206,15 +217,16 @@ public sealed class ReadWebPageTool(WebPageRetrievalService webPageRetrievalServ
};
}
private static JsonNode BuildModelContent(HTMLParserWebPage page, WebPageModelContent modelContent, DateTimeOffset retrievedAtUtc, int originalContentCharacters,
private static JsonNode BuildModelContent(HTMLParserWebPage page, WebContentKind contentKind, WebPageModelContent modelContent, DateTimeOffset retrievedAtUtc, int originalContentCharacters,
bool contentTruncated, IReadOnlyList<string> warnings)
{
var websiteContentAsMarkdown = modelContent.Markdown;
var metadata = new JsonObject();
var mayBeIncompletelyExtracted = contentKind is WebContentKind.HTML_PAGE && originalContentCharacters < MIN_COMPLETE_PAGE_CHARACTERS;
var status = string.IsNullOrWhiteSpace(websiteContentAsMarkdown)
? "empty response"
: contentTruncated || originalContentCharacters < 500
: contentTruncated || mayBeIncompletelyExtracted
? "partial"
: "complete";

View File

@ -57,7 +57,9 @@ public sealed class WebSearchTool(IEnumerable<IWebSearchBackend> backends, WebPa
/// <remarks>
/// A page whose readable content amounts to a few sentences was most likely not extracted
/// in full, whatever the reason, and saying so keeps the model from treating it as the
/// whole story.
/// whole story.<br/><br/>
/// A text document such as a JSON response is exempt: nothing was extracted from it, it
/// arrives whole, and a short one is simply short.
/// </remarks>
private const int MIN_COMPLETE_PAGE_CHARACTERS = 500;
@ -746,7 +748,8 @@ public sealed class WebSearchTool(IEnumerable<IWebSearchBackend> backends, WebPa
return "snippet only";
var originalContentCharacters = result.RetrievedPage.ExtractedPage.Markdown.Length;
return result.ContentTruncated || originalContentCharacters < MIN_COMPLETE_PAGE_CHARACTERS ? "partial or truncated" : "complete";
var mayBeIncompletelyExtracted = result.RetrievedPage.ContentKind is WebContentKind.HTML_PAGE && originalContentCharacters < MIN_COMPLETE_PAGE_CHARACTERS;
return result.ContentTruncated || mayBeIncompletelyExtracted ? "partial or truncated" : "complete";
}
/// <summary>