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listSize directive parsing improvements #8893

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Merged
morriswchris merged 4 commits into from
Feb 17, 2026
Merged

listSize directive parsing improvements #8893

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38dae33
support array parsing for listSize directive (#8799)
morriswchris Jan 12, 2026
c4221c3
Support nested input paths in @listSize slicingArguments (#8809)
morriswchris Jan 30, 2026
2861eaf
Support nested sizeFields for calculating cost (#8862)
morriswchris Feb 11, 2026
d7573b6
add changeset for list size improvements
morriswchris Feb 17, 2026
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11 changes: 11 additions & 0 deletions .changesets/feat_list_size_parsing_and_nested_paths.md
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### Improve `@listSize` directive parsing and nested path support

Demand control cost calculation now supports:

- **Array parsing for `@listSize`:** List-size directives can use array-style parsing for sizing (e.g. list arguments).
- **Nested input paths:** Nested input paths are supported when resolving list size from query arguments.
- **Nested `sizedFields`:** The `sizedFields` argument on `@listSize` supports nested field paths for more accurate cost estimation.

These changes are backward compatible with existing schemas and directives.

By [@cmorris](https://github.com/cmorris) in https://github.com/apollographql/router/pull/8893
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