Research: SDK bundle size — what's possible, what's worth doing#2183

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mattheworiordan wants to merge 13 commits intomainfrom

research/sdk-size-experiments

Commits on Mar 14, 2026

experiment(size): #1 — Log stripping on ably.min.js

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experiment(size): #2 — Switch minifier from esbuild to swc

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experiment(size): #3 — Property mangling (_-prefixed)

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experiment(size): #4 — Error message centralization

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experiment(size): #5 — Logger string constants

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experiment(size): #6 — Code deduplication

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experiment(size): #8 — Remove MessagePack from browser bundle

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chore: optimize browser msgpack and bufferutils for smaller bundle size

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chore: further optimize browser msgpack and bufferutils (5 iterations)

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fix(size): Fix swc source map composition using @ampproject/remapping

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experiment(size): Property mangling deep assessment + sideEffects + CI size tracking

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experiment(size): Property mangling PoC on ConnectionManager.ts

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experiment(size): Property mangling PoC — _-prefix ConnectionManager.ts

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