chore(tools/sourcegraph): improve tool description

Christian Rocha created

Change summary

internal/agent/tools/sourcegraph.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

internal/agent/tools/sourcegraph.md 🔗

@@ -1,4 +1,4 @@
-Search code across public repositories using Sourcegraph's GraphQL API.
+Search code across public GitHub repositories via Sourcegraph; supports regex, language/repo/file filters, and symbol search (max 20 results). Only searches public repos.
 
 <usage>
 - Provide search query using Sourcegraph syntax