github/github-mcp-server · error

after cursor is invalid

Error message

after cursor is invalid

What it means

Error "after cursor is invalid" thrown in github/github-mcp-server.

Source

Thrown at pkg/github/repositories.go:2363

}

// maxBlameRanges caps the number of matching blame ranges considered for one response.
const maxBlameRanges = 1000

const blameCursorPrefix = "blame-range:"

func encodeBlameCursor(offset int) string {
	return base64.RawURLEncoding.EncodeToString(fmt.Appendf(nil, "%s%d", blameCursorPrefix, offset))
}

func decodeBlameCursor(cursor string) (int, error) {
	if cursor == "" {
		return 0, nil
	}

	decoded, err := base64.RawURLEncoding.DecodeString(cursor)
	if err != nil {
		return 0, fmt.Errorf("after cursor is invalid")
	}

	value := string(decoded)
	if !strings.HasPrefix(value, blameCursorPrefix) {
		return 0, fmt.Errorf("after cursor is invalid")
	}

	offset, err := strconv.Atoi(strings.TrimPrefix(value, blameCursorPrefix))
	if err != nil || offset < 0 {
		return 0, fmt.Errorf("after cursor is invalid")
	}

	return offset, nil
}

// BlameAuthor describes the author of a commit referenced by a BlameRange.
type BlameAuthor struct {
	Name  string  `json:"name"`

View on GitHub (pinned to 0ea1f775a7)

When it happens

Trigger: Thrown at pkg/github/repositories.go:2363 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of github/github-mcp-server@0ea1f775a7 (2026-08-15). Data as JSON: /api/errors/7293f21c7ae28deb. Report an issue: GitHub.