The fixture committed the generated Linux workspace path instead of the
`{{cwd}}` token every other acp recording uses. The normalizer masked it
so replay passed, but the next record or refresh would rewrite the file
for no reason; refresh is now byte-stable on it.
The Agent Note's schema-pin arithmetic predated master's
`toolSchemasSource` sharing: seven of the eight sidecars carry the todo
schema, and scenarios composing an identical header share one rather
than each keeping a copy.
Chinesezjc
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