pySHACL Question

Hello,

If this is not the appropriate forum for this question, please let me know.

I have a gist with all of the relevant files at:
https://gist.github.com/James-Hudson3010/65be952d586859da380d949e7b520320

If I execute:

$ pyshacl -a -f human employees.ttl


I get the following, correct validation report...

Validation Report
Conforms: False
Results (3):
Constraint Violation in MaxInclusiveConstraintComponent (
http://www.w3.org/ns/shacl#MaxInclusiveConstraintComponent):
Severity: sh:Violation
Source Shape: hr:jobGradeShape
Focus Node: d:e4
Value Node: Literal("8", datatype=xsd:integer)
Result Path: hr:jobGrade
Constraint Violation in DatatypeConstraintComponent (
http://www.w3.org/ns/shacl#DatatypeConstraintComponent):
Severity: sh:Violation
Source Shape: hr:jobGradeShape
Focus Node: d:e3
Value Node: Literal("3.14", datatype=xsd:decimal)
Result Path: hr:jobGrade
Constraint Violation in MinCountConstraintComponent (
http://www.w3.org/ns/shacl#MinCountConstraintComponent):
Severity: sh:Violation
Source Shape: hr:jobGradeShape
Focus Node: d:e2
Result Path: hr:jobGrade


However, if I split employees.ttl into three files containing the schema,
shape, and instance data and run:

pyshacl -s shape.ttl -e schema.ttl -a -f human instance.ttl


the result is:

Validation Report
Conforms: True


I assume I am calling pyshacl correctly.

If there are other tools similar to pySHACL that allow me to split the
shape, schema, and instance files, I would be interested in learning about
them. Or, is it a best practice to always put everything into a single file?

Regards,
James