Add the opt-in prefix-variance template rule. It runs after the other
opt-in rules and templates a literal at a position that another tool,
of any method or segment count, templates by one of those rules after
the same preceding parts, when the literal is one of that parameter's
observed values or carries a digit and is spelled like one. The
parameter takes the shared parameter's name, tools that now match merge,
and a merged position keeps a tool's own rule when one templated it.
A write to the one entity a session edited, such as
PATCH /api/v1/collections/0RZ576QZQA5KG, becomes
patch_collections_by_collection_id on the read's template instead of a
literal single-entity tool.
Tool naming moves to its own module, and the three comparing passes
share the 32-segment split. Manifests that do not list the rule are
unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
