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refactor: prune core tool and prompt surface

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This commit is contained in:
Tianyi Cui
2026-07-14 02:54:30 +08:00
parent a0359bc4a9
commit 0236a12324
21 changed files with 50 additions and 139 deletions
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2
docs/rfc/implemented/architecture/2026-06-18-session-surface.md
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@@ -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.

3
docs/rfc/implemented/architecture/2026-07-07-tool-call-timeout-policy.md
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@@ -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' },

2
docs/rfc/proposed/simplification/2026-07-12-simplify-session-log-representation.md
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@@ -26,7 +26,7 @@ Amend the session-surface and reconstructable-request RFCs where they describe t
## Acceptance criteria
- `SurfaceManager.nodes` is one ordered seq array with no `SurfaceNode`, link fields, or seq-to-node map; incremental append processing and the internal replace-generation signal remain, while the separate public `invalidate()` deletion stays owned by the dead-surface RFC.
- `SurfaceManager.nodes` is one ordered seq array with no `SurfaceNode`, link fields, or seq-to-node map; incremental append processing and the internal replace-generation signal remain.
- Replaying full changed-header snapshots reconstructs exactly the same requests; no header-delta event/type/codec remains.
- A v0 seed or persisted log containing legacy `request/header-delta` is rejected before replay, with coverage for JSONL and SQLite load paths.
- New-shape v0 JSONL/SQLite replay, provenance, crash repair, compaction, snapshots, invariants, typecheck, coverage, doc-sync, build, and hygiene pass.