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fix(translator): resolve invalid function name errors by sanitizing Claude tool names

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This commit centralizes tool name sanitization in SanitizeFunctionName,
applying character compliance, starting character rules, and length limits.
It also fixes a regression in gemini_schema tests and preserves MCP-specific
shortening logic while ensuring compliance.

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
This commit is contained in:
Saboor Hassan
2025-12-31 02:14:46 +05:00
parent d241359153
commit 3b9253c2be
5 changed files with 47 additions and 9 deletions
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23
internal/util/util.go
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@@ -25,19 +25,26 @@ func SanitizeFunctionName(name string) string {
if name == "" {
return ""
}
// Replace invalid characters with underscore
sanitized := functionNameSanitizer.ReplaceAllString(name, "_")
// Ensure it starts with a letter or underscore
first := sanitized[0]
if !((first >= 'a' && first <= 'z') || (first >= 'A' && first <= 'Z') || first == '_') {
// If it starts with an allowed character but not allowed at the beginning,
// we must prepend an underscore.
// To stay within the 64-character limit while prepending, we may need to truncate first.
if len(sanitized) >= 64 {
sanitized = sanitized[:63]
// Re-reading requirements: Must start with a letter or an underscore.
if len(sanitized) > 0 {
first := sanitized[0]
if !((first >= 'a' && first <= 'z') || (first >= 'A' && first <= 'Z') || first == '_') {
// If it starts with an allowed character but not allowed at the beginning (digit, dot, colon, dash),
// we must prepend an underscore.
// To stay within the 64-character limit while prepending, we must truncate first.
if len(sanitized) >= 64 {
sanitized = sanitized[:63]
}
sanitized = "_" + sanitized
}
sanitized = "_" + sanitized
} else {
sanitized = "_"
}
// Truncate to 64 characters