composiohq--composio/.changeset/toolkit-version-case-insensitive.md

@composio/core

@composio/core
patch

Resolve toolkit version pins case-insensitively. Version maps are keyed by normalized (lowercase) slugs, but getToolkitVersion previously looked them up with the raw slug, so a pin configured under a different casing (e.g. { GitHub: '20250101_00' } or COMPOSIO_TOOLKIT_VERSION_GITHUB) could silently fall back to 'latest'. Normalization is now centralized in a single normalizeToolkitSlug helper used symmetrically on both the write (map-building) and read (lookup) paths, so the two sides can no longer drift. This mirrors the equivalent fix in the Python SDK.