[arav-agarwal2]

§8.2.1's template puts disaggregated, expert_parallel, tensor_parallel,
pipeline_parallel, data_parallel and config_summary at the top level of
system_desc.json, so a SUT declares one partitioning for every node type it
has. This moves them inside each node_types entry.

§4.5.3 already assumes they are per node type

The provisioned node-count declaration is explicit about it:

declared at each point in the point's measurement YAML (§8.3), by node
type: a single count for a homogeneous system, one count per node type for a
heterogeneous one.

and then requires:

The declared node count MUST be consistent with the parallelism configuration
declared in system_desc.json (§8.2) — tensor_parallel,
pipeline_parallel, expert_parallel, and data_parallel

A heterogeneous SUT that partitions differently on each node type cannot satisfy
both rules as written: one SUT-wide tensor_parallel has no way to express two
different values, so the consistency requirement is unsatisfiable rather than
merely unchecked. Moving the fields is what makes §4.5.3 expressible.

config_summary moves with them, being the concatenation of the five.
config_summary_notes stays SUT-wide and remains an input to each node type's
config_summary; its table row says so.

Compatibility

A homogeneous SUT has exactly one node_types entry, so it declares the six
fields once — same count, one nesting level deeper. That is every submission in
the corpus today, so nothing in flight becomes unexpressible; bundles do need
re-nesting, which the checker handles — see the companion PR
mlcommons/endpoints-submission-cli#146, which reads both placements.

Verification

• Extracted the §8.2.1 template and parsed it: valid JSON, the six keys appear
  only inside node_types[0], and the remaining top-level keys after
  node_types are node_config, batch, config_summary_notes,
  tps_utilization — batch deliberately not moved.
• pre-commit run --files endpoints_rules.md passes (markdownlint MD013).
• Net diff is 8 lines changed either way: the six moved keys, the trailing-comma
  adjustments around them, and the config_summary row.

🤖 Generated with Claude Code

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[arav-agarwal2]

Updating this as we speak - I'll move config_summary inside.

[arav-agarwal2]

I'm going to remove this section as it's just adding words to the rules without I think a good reason to.