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Mark Fogle
f98b73b3d3
headless-simple's "Give me a fun fact." pill rendered the wrong text
("Here's a fun fact: honey never spoils…") and the e2e failed. Root cause:
d4/mastra/chat.json keyed the prebuilt-sidebar agentic-chat fixture on the
bare "fun fact", which is a substring of the headless-simple pill "Give me a
fun fact." Because d4 loads before d6, that fixture shadowed headless-simple's
own d6 fixture ("A fun fact: Honey never spoils!").
Re-key it to the unique "fun fact for the prebuilt sidebar" phrase (mirrors
gold langgraph-python), so it no longer substring-collides. The prebuilt-sidebar
demo pill "Give me a fun fact." now shares headless-simple's d6 fun-fact
fixture, exactly as gold does; prebuilt-sidebar/popup e2e unaffected.
Verified (Node 22 + next start + aimock 1.37.4 replay): headless-simple 4/4,
prebuilt-sidebar 4/4, prebuilt-popup 4/4 — and the full mastra card/chat suite
green (tool-rendering 6/6, tool-rendering-reasoning-chain 5/5, headless-complete
5/5, beautiful-chat 8/8, agentic-chat 4/4). Only a userMessage key changed
(more specific → strictly fewer aimock substring-shadows, well under the
KNOWN_SHADOW_CEILING).
--no-verify: sparse showcase checkout has no monorepo lefthook/commitlint binaries.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>