Heyang Wang 9f8f65dde0 feat: support fork from any conversation (#8817) ... * feat(web-shell): branch from completed assistant responses Add durable response checkpoints so Web Shell sessions can branch from eligible completed Assistant turns without mutating the source history. - Record and validate checkpoints behind serialized topology fences - Preserve historical anchors through replay, daemon, SDK, and UI layers - Publish bounded forks with crash-safe ownership and referenced backups - Serialize prompt, rewind, branch, automatic turn, and close mutations - Cover stale anchors, replay pagination, cleanup, and pending UI states Note: Responses recorded before this change remain non-branchable. # Conflicts: # packages/acp-bridge/src/bridge.ts # packages/acp-bridge/src/bridgeTypes.ts # packages/cli/src/acp-integration/acpAgent.test.ts # packages/cli/src/acp-integration/acpAgent.ts # packages/cli/src/serve/routes/session.ts # packages/cli/src/serve/server.test.ts # packages/core/src/services/chatRecordingService.ts # packages/core/src/services/sessionService.test.ts # packages/core/src/services/sessionService.ts # packages/sdk-typescript/src/daemon/DaemonClient.ts # packages/web-shell/client/components/MessageItem.tsx # packages/web-shell/client/components/MessageList.tsx * fix(session): preserve historical branch checkpoints Keep Assistant-response branching intact across the daemon stack after rebases, including history serialization and persisted-session ownership. - Forward durable checkpoint IDs through Bridge, SDK, and UI layers - Serialize live history mutations and retain valid nested branch anchors - Preserve persisted branches during generation cleanup - Add cross-layer regression tests for replay and stale checkpoints * fix(web-shell): harden response session branching * chore: remove PR comment evaluation artifact Keep the PR review report as a local ignored backup instead of shipping it with the feature branch. - Remove the generated PR comment evaluation from tracked files - Preserve the report under the ignored analyze directory * fix(web-shell): guard historical branch mutations Historical branch requests could outlive the client timeout during an active turn, and interactive forks lacked the recorder's cross-process writer-lease barrier. - Hide Assistant Branch actions while a turn is active - Run interactive fork creation inside the recorder write barrier - Use the concrete checkpoint recorder contract in Session - Document committed-session ownership and implemented design status * perf(core): index historical branch points during transcript scan Build branch catalogs during the frozen index scan so the first history page no longer reopens and materializes the complete active chain. - Retain a compact projection for shared branch-point resolution - Correlate live branch anchors with the completed prompt and final reply - Complete recorder mocks required by the concrete Session contract - Update the reviewed design with performance and correlation invariants * fix(core): address review findings — dead code, boundary remap, promptId guard, stale toast (#8274) * fix(core): address review findings — dead code, boundary remap, promptId guard, stale toast (#8274) * fix(core): address review findings — archived GC, subtype registration, UUID validation, dead code (#8274) * test: strengthen branch-point and fork coverage from review (#8274) Add focused tests requested in PR review: - branch catalog resolves checkpoints that fall on a later page - accept a parallel tool batch closed within a single turn - exercise the linkSync->copyFileSync fork backup fallback success path - prove a remapped checkpoint stays usable via a nested fork - isolate each branch-point validation conjunct across bridge and SDK * fix: address round-4 review feedback for session branching (#8274) - Make the directory-fsync durability test platform-aware (skip on win32), since fsyncDirectoryBestEffort swallows the injected error on Windows and the rejection path is non-Windows by design. - Reject atRecordId on the side-task fork path instead of silently discarding it, so the API surface no longer implies acceptance. - Correct the design doc: name the real promptQueue FIFO (not the nonexistent historyMutationQueue) and describe filtered checkpoint boundaries as remapped to the nearest retained predecessor, not unconditionally null. - Add focused tests: branch-point assistantRecordUuid mismatch rejection, and insight-block branchRecordId anchoring (insight-only block must not anchor onto the previous reply). * fix: address round-5 review feedback for session branching (#8274) * fix: address round-6 review feedback for session branching (#8274) * fix: address round-7 review feedback for session branching (#8274) * fix(core): harden branch-point resolution against malformed transcript shapes (#8274) - Filter null/non-object part elements in the shared branch resolver so a transcript containing null parts no longer makes forkSession throw a TypeError for every checkpoint. - Tag tool calls carried in from the pre-boundary prefix so a dangling call left by a crashed turn no longer permanently disables checkpoint recording; only calls issued inside the turn must close. - Merge duplicate-uuid records first-wins for identity fields in the transcript reader, matching the byUuid index and fork aggregation, so the reader never advertises a branch marker the fork path must reject. * fix: address round-8 review feedback for session branching (#8274) Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com> * fix: address round-9 review feedback for session branching (#8274) * test(core): pin branch GC isolation from throwing warning callbacks (#8274) * fix(acp-bridge): reject rewind at admission while a prompt is active (#8274) * fix(web-shell): harden session branch publication Preserve direct ACP prompt preemption while fencing branch and rewind history mutations at the Session boundary. Convert branch publication, backup staging, cleanup, and stale-claim GC to asynchronous filesystem APIs, and surface unsupported hard-link commits as typed ACP and HTTP errors. Expand regression coverage and update the reviewed design contract. * fix(web-shell): harden historical response branching Reject branches during prompt admission and keep dispatched mutations owned until their real outcome is known. - remove detached timeouts across ACP, SDK, and WebUI - bound branch cleanup and make title scans asynchronous - avoid full branch-point scans during transcript pagination - add regression coverage from Core through the real daemon and browser * fix: address round-11 review feedback for session branching (#8274) * fix: address round-12 review feedback for session branching (#8274) * refactor(branching): remove branch-specific overdesign Simplify historical session branching around the minimum persistence, recording, and navigation invariants required by the Web Shell flow. - Replace branch claims and garbage collection with staged publication - Validate completed turns incrementally instead of reloading transcripts - Separate persisted branch creation from live session restoration - Bound SDK waits and prevent late results from replacing navigation - Remove unused checkpoint prompt IDs while reading legacy records Note: A pre-commit crash may leave hidden staging or orphan backups. * chore(sdk): update browser bundle budget Account for the combined historical branching and transcript projection APIs after merging main while keeping the browser bundle size guard narrowly bounded. * fix(branching): address review lifecycle gaps Harden historical session branching against cancellation, observer, navigation, and shutdown races found during review. - Normalize cancellation keys and bound close-time mutation waits - Preserve anchors after observer completion and load persisted forks - Report success only when the guarded session switch starts - Cover recorder cursors, fork cleanup, admission, and rollback - Align daemon events and branch errors with runtime behavior * refactor(session): simplify branching safeguards Reduce the session branching surface after review while preserving the critical concurrency, durability, and ownership guarantees. - Remove the unused full-chain resolver and test production entry points - Copy backups from verified open handles instead of using hard links - Reuse the bounded title scan instead of maintaining an async mirror - Deduplicate UI branch requests and fail fast for busy automatic turns - Consolidate repeated mutation tests and retain critical race coverage - Document the retained invariants and rejected overdesign explicitly * test(branching): simplify regression coverage Reduce duplicated branching tests while retaining regression coverage for the safety, concurrency, and lifecycle fixes introduced by this feature. - Consolidate symmetric bridge and agent scenarios with table-driven cases - Remove repeated cross-layer assertions and brittle implementation spies - Drop redundant UI permutations and branch-only visual snapshots * fix(serve): handle branch busy admission * fix(sdk): preserve v1 branch session contract Keep existing latest-state branch callers source- and wire-compatible while retaining the persisted-only behavior for historical checkpoint branches. - Restore no-anchor branches before returning their live client identity - Add a separate typed result for persisted historical branch requests - Clean up restored attachments on stale navigation and disconnect races - Cover immediate continuation and historical persistence independently * fix(daemon): guard branching history mutations Prevent branch creation and automatic Goal turns from racing session teardown or interactive history mutations. - Reject branch admission while a conditional close is authorized - Serialize Goal continuations behind the history mutation gate - Limit branch checkpoints to interactive prompts - Add regressions for close and Goal scheduling races * fix(branching): preserve fork and checkpoint semantics Keep branch checkpoints and file-history snapshots correct across resumed, forked, and non-interactive session flows. - Track the restored active-chain base before the first appended turn - Preserve backup file modes during fork publication - Exclude authenticated channel prompts from checkpoint recording - Add regressions for all three review failures * fix(branching): harden branch and rewind behavior Handle the remaining branch and rewind review findings without widening the feature contract. - Ignore benign concurrent branch rejections in the Web Shell - Validate rewind prompt IDs before using string operations - Pin mutation ordering, cleanup, compaction, and checkpoint invariants - Align sourced-fork fixtures with the canonical side_task value --------- Co-authored-by: heyang.why <heyang.why@alibaba-inc.com> Co-authored-by: Shaojin Wen <shaojin.wensj@alibaba-inc.com> Co-authored-by: 易良 <1204183885@qq.com> Co-authored-by: qwen-code-ci-bot <qwen-code-ci-bot@users.noreply.github.com> Co-authored-by: qwen-code-bot <qwen-code-bot@users.noreply.github.com> Co-authored-by: qwen-code-dev-bot <qwen-code-dev@service.alibaba.com> Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>		2026-08-15 10:01:49 +00:00
..
daemon	feat: support fork from any conversation (#8817)	2026-08-15 10:01:49 +00:00
daemon-client-adapters	docs(serve): Close multi-workspace hardening gaps (#7019)	2026-07-16 17:33:53 +00:00
daemon-ui	fix(web-shell): stop rendering unrecognized daemon events in transcripts (#8812)	2026-08-10 00:51:57 +00:00
development	feat(telemetry): Trace main agent invocations (#9107)	2026-08-14 02:50:22 +00:00
examples	docs(serve): Close multi-workspace hardening gaps (#7019)	2026-07-16 17:33:53 +00:00
tools	fix(core): Avoid replaying unsafe MCP tool calls (#8387)	2026-08-03 11:04:38 +00:00
_meta.ts	docs(daemon): Refresh daemon docs in English (#5144)	2026-06-15 22:38:01 +08:00
architecture.md	docs: refresh architecture overview (#8325)	2026-08-02 02:45:00 +00:00
channel-plugins.md	docs(channels): Document loops and proactive delivery (#7628)	2026-07-26 07:32:18 +00:00
contributing.md	revert: remove local PR verification gate (#7031)	2026-07-16 11:24:38 +00:00
qwen-serve-protocol.md	feat(daemon): guard cross-worktree Git mutations (#8687)	2026-08-14 09:55:59 +00:00
roadmap.md	docs: standardize GitHub Actions capitalization (#6367)	2026-07-06 06:55:07 +00:00
sdk-java.md	fix(serve): Coordinate caller-supplied session IDs (#8415)	2026-08-09 07:31:30 +00:00
sdk-python.md	doc[sdk-python] Expand Python SDK usage documentation (#3995)	2026-05-12 15:27:00 +08:00
sdk-typescript.md	fix(serve): Coordinate caller-supplied session IDs (#8415)	2026-08-09 07:31:30 +00:00