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Malte UblandClaude Opus 5.5
9fab4348d3
`const { hasOwnProperty } = Object.prototype`, `Object.prototype.constructor`
and `hasOwnProperty.call(Object.prototype, "constructor")` hit the runtime
"Object.prototype reflection and mutation" fence (acorn, ini,
safe-stable-stringify and qs read the prototype this way). Reads of the
prototype's constructor and shared methods now answer the same interned
values the inherited reads answer, own-property checks see its twelve own
members (none enumerable), and Object.prototype.toString.call(error)
answers "[object Error]" instead of "[object Object]". Mutation and the
remaining reflection (isPrototypeOf, __proto__, accessors) stay fenced.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>