refactor: prune core tool and prompt surface

2026-07-14 02:54:30 +08:00
parent a0359bc4a9
commit 0236a12324
21 changed files with 50 additions and 139 deletions
@@ -31,7 +31,7 @@ export type SurfaceOp =

 ### SurfaceManager: delta-based, not full rebuild

-A `SurfaceManager` class (private to `Session`) maintains the cached linked list. It tracks `_lastProcessedSeq` and processes only the **delta** (new events since the last access) rather than rescanning the entire log. Because the log is append-only, prior events never change — full rebuild is only needed after a wholesale log replacement (e.g., seeding).
+A `SurfaceManager` owned by `Session` maintains the cached linked list. It tracks `_lastProcessedSeq` and processes only the **delta** (new events since the last access) rather than rescanning the entire log. The seed is fixed before the manager is created and the log is append-only afterward, so prior events never change and no invalidation path is needed.

 Delta processing is O(1) when no new events and O(new events) when new events arrive.

@@ -57,9 +57,8 @@ Signal replacement is by **in-place mutation of `exec.signal`**, not by passing
 `timeout-policy` owns both uses of the `TOOL_TIMEOUT` code: the internal deadline code passed to `deadline()`/`timeoutOf()` (scoped so a nested outer deadline reads as an ordinary cancel) and the structured tool-result error code. Its replacement result is:

 ```ts ignore-check
-function toolTimeoutResult(callId: CallId, timeoutMs: number): ToolExecutionResult {
+function toolTimeoutResult(timeoutMs: number): ToolExecutionResult {
  return {
-    callId,
    content: [{ type: 'text', text: `Error: tool call timed out after ${timeoutMs}ms` }],
    isError: true,
    error: { name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' },