Add vendor assessment agent

Signed-off-by: Aurélien Sibiril <81782+aureliensibiril@users.noreply.github.com>

pkg/agent/tools/browser/find_links.go

@@ -0,0 +1,97 @@
+// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package browser
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"github.com/chromedp/chromedp"
+	"go.probo.inc/probo/pkg/agent"
+)
+
+type (
+	findLinksParams struct {
+		URL     string `json:"url" jsonschema:"The URL to search for links"`
+		Pattern string `json:"pattern" jsonschema:"Keyword to filter links by (case-insensitive match on href or text)"`
+	}
+)
+
+func FindLinksMatchingTool(b *Browser) agent.Tool {
+	return agent.FunctionTool(
+		"find_links_matching",
+		"Navigate to a URL and extract links whose href or text matches a keyword (case-insensitive).",
+		func(ctx context.Context, p findLinksParams) (agent.ToolResult, error) {
+			if r := b.checkAlive(); r != nil {
+				return *r, nil
+			}
+
+			if r := b.checkURL(p.URL); r != nil {
+				return *r, nil
+			}
+
+			if p.Pattern == "" {
+				return agent.ResultError("pattern must not be empty"), nil
+			}
+
+			ctx, timeoutCancel := withToolTimeout(ctx)
+			defer timeoutCancel()
+
+			tabCtx, cancel := b.NewTab(ctx)
+			defer cancel()
+
+			var links []link
+
+			patternJSON, err := json.Marshal(p.Pattern)
+			if err != nil {
+				return agent.ResultErrorf("cannot encode pattern: %s", err), nil
+			}
+
+			js := fmt.Sprintf(
+				`(() => {
+					const pattern = JSON.parse(%s).toLowerCase();
+					const normalize = s => s.replace(/[-_\s]+/g, "");
+					const normalizedPattern = normalize(pattern);
+					return Array.from(document.querySelectorAll("a[href]"))
+						.filter(a => {
+							const href = a.href.toLowerCase();
+							const text = a.innerText.toLowerCase();
+							return href.includes(pattern) || text.includes(pattern)
+								|| normalize(href).includes(normalizedPattern)
+								|| normalize(text).includes(normalizedPattern);
+						})
+						.map(a => ({
+							href: a.href,
+							text: a.innerText.trim().substring(0, 200)
+						}));
+				})()`,
+				string(patternJSON),
+			)
+
+			err = chromedp.Run(
+				tabCtx,
+				chromedp.Navigate(p.URL),
+				waitForPage(),
+				chromedp.Evaluate(js, &links),
+			)
+			if err != nil {
+				return agent.ResultError(b.classifyError(ctx, p.URL, err)), nil
+			}
+
+			return agent.ResultJSON(links), nil
+		},
+	)
+}