TilingLeafToken

TilingLeafToken = `${typeof TILING_LEAF_PREFIX}${string}`

Defined in: packages/protocol/src/lib/response.ts:89

A tiling-tree leaf: TILING_LEAF_PREFIX followed by the Instance ID the leaf renders.

The prefix is what makes a leaf a leaf. Without it the grammar would have to separate leaves from splits by elimination, which puts every Instance whose ID happens to start H/V — "H:hero", and "V" itself — one string comparison away from being read as an arity-two divider that consumes the two subtrees behind it. Marking leaves instead of constraining Instance IDs keeps the grammar’s needs inside the grammar.

The template literal admits "ID:" with nothing after it, mirroring TilingWeightedSplit’s tolerance of a malformed suffix: classifying a token is separate from reading one, and tilingLeafInstanceId is where a leaf’s payload is read.