The File Activity card derived its ops client-side from the served tool
nodes joined with the conversation WINDOW: a call whose arguments had aged
out of the loaded tail named no target and vanished from the card silently,
so the "up to latest" scope actually covered only the chat window. The join
was also the only meta/subCalls carrier, and the per-call op assembly was
written twice (top-level and Code-Mode nested paths).
The derivation moves to the host fold, which sees every lifecycle event with
its full payload: `tool/call` arms name + raw arguments (the pending-call
map's entries grow `argsRaw`), `tool/result` books the ops off the armed
arguments plus the result's presentation meta (grep's by-file match groups,
glob's path list, read's exact window), and `tool/code-dispatch` buffers
nested Code-Mode ops under their run_code root until the parent result
flushes them with `parent` + the program description. The log is bounded
(`maxFileOps`, default 400) with a `fileOpsFloor` coverage stamp, rides the
detail payload (and the inline value on channel-less hosts), and is plain
JSON end to end. stateVersion bumps to 14; cached rows refold from the log
to rebuild the op log.
The per-call parsing is ONE shared module (shared/fileOps.ts — opsOfCall
plus the kind/path/delta/read-window/search-attribution primitives),
consumed by the host fold and by the client's inline-generation fallback
(the legacy window derivation stays for old hosts, now through the same
parser, closing the duplicated assembly). The client aggregates + filters
(`activityOfOps` joins the archive's `gone` stamps at render time; nested
ops scope by their parent result's seq, matching the legacy node-level
rule); the card, its chips, rows, deltas, and locate bridge render
unchanged.
Verified: 1142 tests with per-file 100% coverage (new parser matrix,
fold-ops, aggregation, end-to-end through the real registry + detail
endpoint); the compat vocabulary probe gains tool/code-dispatch (present at
the 0.1.2-rc.1 tag). Live on the real deployment: the big session's card
grew from 4 window-bound files to 37 files / 135 ops spanning every turn,
and folding the real Code-Mode logs books nested ops with parent + program
stamps (e.g. 136 nested reads across one session, errors flagged).
Known upstream boundary (unchanged): `tool/code-dispatch` persists no
result meta, so nested reads keep the limit-estimate footprint and nested
searches the call-target form until the harness carries meta there.
Bowen Liang
5c99a476f3