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669 | {
"_doc": "selfsync.cljs's `apps` section — the suite identity record's per-app map {<appKey>:{state,ts}}: sanitizeAppsSync shape/size/JSON-safety clamps and the PER-KEY foldAppsSync (newest ts wins that key, equal ts breaks on the greater canon of the entry, a key only one side has is adopted). Sizes are UTF-16 code units of JSON.stringify, id-kit's unit and id-kit's numbers. Size/map/JSON-safety rows carry input_desc + a verdict instead of the input, which is 16 KB+, cyclic or a function. The *_keys arrays exist because deepEqual is key-order-blind and key order is the wire.",
"deterministic": {
"sanitize_cases": [
{
"name": "kept-in-deterministic-order",
"input": {
"zed": {
"state": 1,
"ts": 1735689600000
},
"chat": {
"state": {
"unread": 3
},
"ts": 1735689601000
},
"board": {
"state": "z",
"ts": 1735689602000
}
},
"output": {
"board": {
"state": "z",
"ts": 1735689602000
},
"chat": {
"state": {
"unread": 3
},
"ts": 1735689601000
},
"zed": {
"state": 1,
"ts": 1735689600000
}
},
"output_keys": [
"board",
"chat",
"zed"
]
},
{
"name": "digit-keys-are-not-lexicographic",
"input": {
"2": {
"state": 1,
"ts": 1735689600000
},
"10": {
"state": 1,
"ts": 1735689600000
},
"board": {
"state": 1,
"ts": 1735689600000
},
"a": {
"state": 1,
"ts": 1735689600000
}
},
"output": {
"2": {
"state": 1,
"ts": 1735689600000
},
"10": {
"state": 1,
"ts": 1735689600000
},
"a": {
"state": 1,
"ts": 1735689600000
},
"board": {
"state": 1,
"ts": 1735689600000
}
},
"output_keys": [
"2",
"10",
"a",
"board"
]
},
{
"name": "bad-keys-dropped",
"input": {
"BAD KEY": {
"state": 1,
"ts": 1735689600000
},
"under_score": {
"state": 1,
"ts": 1735689600000
},
"": {
"state": 1,
"ts": 1735689600000
},
"ok": {
"state": 1,
"ts": 1735689600000
}
},
"output": {
"ok": {
"state": 1,
"ts": 1735689600000
}
},
"output_keys": [
"ok"
]
},
{
"name": "proto-keys",
"input": {
"__proto__": {
"state": "p",
"ts": 1735689600000
},
"constructor": {
"state": "c",
"ts": 1735689600000
}
},
"output": {
"constructor": {
"state": "c",
"ts": 1735689600000
}
},
"output_keys": [
"constructor"
]
},
{
"name": "bad-entries-dropped-neighbours-kept",
"input": {
"a": {
"state": 1,
"ts": 0
},
"b": {
"state": 1,
"ts": -1
},
"c": {
"state": 1
},
"d": {
"state": 1,
"ts": "5"
},
"ee": {
"state": 1,
"ts": 1735689600000
},
"f": null
},
"output": {
"ee": {
"state": 1,
"ts": 1735689600000
}
},
"output_keys": [
"ee"
]
},
{
"name": "not-object",
"input": null,
"output": null,
"output_keys": null
},
{
"name": "array",
"input": [],
"output": null,
"output_keys": null
},
{
"name": "empty",
"input": {},
"output": null,
"output_keys": null
},
{
"name": "nothing-survives-is-null",
"input": {
"BAD KEY": {
"state": 1,
"ts": 1735689600000
}
},
"output": null,
"output_keys": null
}
],
"size_cases": [
{
"name": "ascii-at-the-cap",
"input_desc": "state = \"x\".repeat(16382) — JSON is 16382 + 2 = 16384 code units",
"kept": true
},
{
"name": "ascii-one-over",
"input_desc": "state = \"x\".repeat(16383) — JSON is 16385 code units",
"kept": false
},
{
"name": "two-byte-at-the-cap",
"input_desc": "state = \"ș\".repeat(16382) — JSON is 16384 code units (32768 UTF-8 bytes)",
"kept": true
},
{
"name": "two-byte-one-over",
"input_desc": "state = \"ș\".repeat(16383) — JSON is 16385 code units",
"kept": false
}
],
"map_cases": [
{
"name": "map-exactly-at-the-cap",
"input_desc": "5 entries at the per-entry cap + a sixth of 16177 units — 98304 exactly",
"kept_keys": [
"a",
"b",
"c",
"d",
"f",
"g"
],
"serialized_units": 98304
},
{
"name": "over-cap-entry-skipped-smaller-neighbour-kept",
"input_desc": "the same 5 + one 16178-unit entry (1 over what is left) + one 100-unit entry",
"kept_keys": [
"a",
"b",
"c",
"d",
"f",
"i"
],
"serialized_units": 82227
}
],
"safety_cases": [
{
"name": "null-state",
"input_desc": "state = null — JSON-safe, kept",
"kept": true
},
{
"name": "absent-state",
"input_desc": "no state key at all — JSON.stringify(undefined) is undefined",
"kept": false
},
{
"name": "function-state",
"input_desc": "state = () => {} — JSON.stringify gives undefined",
"kept": false
},
{
"name": "function-valued-key",
"input_desc": "state = { f: () => {} } — JSON.stringify gives '{}' but canon() THROWS",
"kept": false
},
{
"name": "bigint-state",
"input_desc": "state = 1n — both serializers throw",
"kept": false
},
{
"name": "cyclic-state",
"input_desc": "state = an object holding itself",
"kept": false
}
],
"fold_cases": [
{
"name": "newer-entry-wins-its-key",
"local": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 1
},
"ts": 1735689601000
}
},
"remote": {
"chat": {
"state": {
"n": 9
},
"ts": 1735689602000
},
"game1": {
"state": {
"n": 3
},
"ts": 1735689600000
}
},
"folded": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 9
},
"ts": 1735689602000
},
"game1": {
"state": {
"n": 3
},
"ts": 1735689600000
}
},
"folded_keys": [
"board",
"chat",
"game1"
]
},
{
"name": "commutes",
"local": {
"chat": {
"state": {
"n": 9
},
"ts": 1735689602000
},
"game1": {
"state": {
"n": 3
},
"ts": 1735689600000
}
},
"remote": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 1
},
"ts": 1735689601000
}
},
"folded": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 9
},
"ts": 1735689602000
},
"game1": {
"state": {
"n": 3
},
"ts": 1735689600000
}
},
"folded_keys": [
"board",
"chat",
"game1"
]
},
{
"name": "per-key-independence",
"local": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 1
},
"ts": 1735689601000
}
},
"remote": {
"board": {
"state": {
"n": 7
},
"ts": 1735689609000
},
"chat": {
"state": {
"n": 0
},
"ts": 1735689600000
}
},
"folded": {
"board": {
"state": {
"n": 7
},
"ts": 1735689609000
},
"chat": {
"state": {
"n": 1
},
"ts": 1735689601000
}
},
"folded_keys": [
"board",
"chat"
]
},
{
"name": "equal-ts-converges-ab",
"local": {
"chat": {
"state": {
"n": 1
},
"ts": 1735689600000
}
},
"remote": {
"chat": {
"state": {
"n": 2
},
"ts": 1735689600000
}
},
"folded": {
"chat": {
"state": {
"n": 2
},
"ts": 1735689600000
}
},
"folded_keys": [
"chat"
]
},
{
"name": "equal-ts-converges-ba",
"local": {
"chat": {
"state": {
"n": 2
},
"ts": 1735689600000
}
},
"remote": {
"chat": {
"state": {
"n": 1
},
"ts": 1735689600000
}
},
"folded": {
"chat": {
"state": {
"n": 2
},
"ts": 1735689600000
}
},
"folded_keys": [
"chat"
]
},
{
"name": "idempotent",
"local": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 1
},
"ts": 1735689601000
}
},
"remote": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 9
},
"ts": 1735689602000
},
"game1": {
"state": {
"n": 3
},
"ts": 1735689600000
}
},
"folded": {
"board": {
"state": {
"n": 2
},
"ts": 1735689603000
},
"chat": {
"state": {
"n": 9
},
"ts": 1735689602000
},
"game1": {
"state": {
"n": 3
},
"ts": 1735689600000
}
},
"folded_keys": [
"board",
"chat",
"game1"
]
},
{
"name": "both-empty",
"local": {},
"remote": {},
"folded": {},
"folded_keys": []
},
{
"name": "proto-keys-dropped-constructor-kept",
"local": {
"__proto__": {
"state": "p",
"ts": 1735689600000
},
"constructor": {
"state": "c",
"ts": 1735689600000
}
},
"remote": {},
"folded": {
"constructor": {
"state": "c",
"ts": 1735689600000
}
},
"folded_keys": [
"constructor"
]
},
{
"name": "digit-keys-are-not-lexicographic",
"local": {
"10": {
"state": 1,
"ts": 1735689600000
},
"board": {
"state": 1,
"ts": 1735689600000
}
},
"remote": {
"2": {
"state": 1,
"ts": 1735689600000
},
"a": {
"state": 1,
"ts": 1735689600000
}
},
"folded": {
"2": {
"state": 1,
"ts": 1735689600000
},
"10": {
"state": 1,
"ts": 1735689600000
},
"a": {
"state": 1,
"ts": 1735689600000
},
"board": {
"state": 1,
"ts": 1735689600000
}
},
"folded_keys": [
"2",
"10",
"a",
"board"
]
}
],
"consts": {
"app_key_re": "^[a-z0-9-]{1,32}$",
"size_unit": "utf16-code-units-of-JSON.stringify",
"state_max_units": 16384,
"apps_max_units": 98304,
"skew_ms": 120000
},
"notes": [
"the `apps` section rides the fsync body next to soc/profile/app — additive, old kits read past it",
"sanitizeAppsSync: plain object only (an array is refused), keys /^[a-z0-9-]{1,32}$/, entries {state,ts} with a finite ts > 0",
"key order is DETERMINISTIC, not lexicographic: entries are inserted sorted, but JS canonical property order hoists all-digit keys numerically ahead of the rest — \"2\" before \"10\" before \"board\"",
"sizes are UTF-16 CODE UNITS of JSON.stringify — never UTF-8 bytes — and the two caps are id-kit's own: 16384 per entry's `state`, 98304 for the whole serialized map. There is NO entry-count cap and no eviction",
"an entry that would push the map past 98304 is skipped and smaller ones after it are still kept, so a second pass over the result changes nothing",
"ts is clamped to NOW, never to now + skew: a section may never be emitted with a timestamp from the future (skew_ms is the PROFILE section's tolerance, kept for it alone)",
"state must satisfy BOTH JSON.stringify (not undefined, no throw) and canon() (which throws where JSON.stringify silently drops) — canon is what the agent's sync fingerprint runs over",
"foldAppsSync folds PER KEY over the union: strictly newer ts wins that key wholesale, equal ts breaks on the greater canon() of the ENTRY (role-independent), a key only one side has is adopted unchanged",
"the fold applies the key charset too, so a `__proto__` own key from JSON.parse can never reach the output's prototype setter; it returns {} rather than null when both sides are empty"
]
}
}
|