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creatixchu
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A turn cancelled mid-stream dropped everything the interrupted step had streamed: chunks stayed in the log for replay, but no assistant/message joined the surface, so the next request carried nothing the user had watched stream. Follow-ups after cancel could not connect and forks inherited the gap. Keep the streaming attempt alive across the step's request loop and, when an abort escapes with the attempt uncommitted, finalize its user-visible prefix as the step's ordinary assistant/message citing the logged chunk seqs. BlockAssembler.interruptedBlocks() owns the safe subset next to the max-tokens rule: closed and open text/reasoning blocks with content, in stream order; tool calls, empty blocks, and unknown open blocks drop. Retry clears the attempt first, so an abort after llm/retry finalizes nothing from the reset stream. Tool-phase cancellation and provider failures keep their existing shapes.
Subsystems
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One page per subsystem of the DeepSeek Harness: what it is, the data structures it moves, and — where a ctx service or event scope backs it — a generated Cordis surface section carrying its service and event reference. The folder complements architecture.md, which describes behavior across subsystems (the service map, the session/turn/step lifecycle, the event taxonomy); each page here is the reference for one subsystem's vocabulary and wiring.
| Page | Owns |
|---|---|
| core.md | the packages/core control spine: the package-by-package loop map, agent creation and ownership (AgentHandle), the Agent handle with its delivery/cancellation/interception contracts, and the repo-wide type patterns (…Map → derived-union, branded ids) |
| llm-streaming.md | the packages/llm conversation vocabulary — Message/ContentBlock, the assembled model request, the StreamChunk wire protocol + adapter contract, BlockAssembler, the LlmAdapter provider contract |
| token-meter.md | immutable scalar and positional replay measurements with consumed-log revisions |
| scope.md | scoped registration identity, dispatch carriers, and the owned Scope context |
| typert.md | Remote invocation descriptors, lookup/Context declarations, TypeRT registries, and the Host Gateway/Client API boundaries |
| goal.md | persisted goal identity, lifecycle snapshots, activation, change records, and round attribution |
| commands.md | the human-command registry service: definitions, adapter discovery, direct invocation, results, and parsing views |
| session.md | the full SessionEventMap variant catalog, TurnTrigger/TurnEndReason, deriveMessages(), execution enclosure, and standalone events |
| persistence.md | the durability seam: SessionPersistence, JSONL + SQLite backends, session/flush, crash recovery, SessionHeader |
| settings.md | the user-settings seam: SettingsNamespace registration, layered resolution (defaults → composition base → user document), owner scopes, hot commits |
| credentials.md | the credential seam: CredentialRef references (never values) in configuration, per-operation resolution, UI-safe CredentialInfo, provider source layers |
| session-query.md | logical records, bounded exact-event reads, relationship traces, semantic filters/documents, and full-text result pages |
| session-title.md | durable title snapshots, cited source-message seqs, and the asynchronous provider contract |
| session-reference.md | structured cross-session references: SessionReferenceInput/Candidate, prepared message contexts, the stable error taxonomy |
| system-prompt.md | per-assembly context, tool-provider results, prompt sections, and cooperative assembly |
| tools.md | ToolDefinition full fields, the schema DSL, ToolExecution/ToolResult, tool-presentation UI types, and the guarded execution pipeline |
| user-interaction.md | the UI-backed human question/answer seam: AskUserQuestionRequest, answer/options vocabulary, provider API, error taxonomy |
| approval.md | the one-shot user-approval seam: ApprovalRequest, ApprovalOutcome, per-session policy, audit and answerer contracts |
| bash.md | the bash executor seam: BashExecRequest/Spec, BashRunResult, background BashProcess handles |
| subprocess.md | the subprocess seam: fully-explicit SubprocessSpawnSpec, offset-based output readers, unclassified SubprocessOutcome, and the managed DSH_* environment vocabulary |
| pty.md | persistent terminal ids, backend/session contracts, send readiness, bounded reads, and owner-visible snapshots |
| sandbox.md | per-session policy resolution and the process-confinement seam: file-effect modes, execution/provider policies, ConfinedArgv, enforcement and fail-closed errors |
| code-runtime.md | the code-execution seam: CodeRunRequest/Result, binding namespaces, captured logs, the CodeRunFailure taxonomy |
| filesystem.md | the filesystem seam: FsTarget, read/write/edit outcomes, observed-file state, FsErrorCode |
| lsp.md | the LSP navigation seam: LspQueryRequest/Result, LspProvider/Service, four operations, LspError |
| skills.md | the skill service: discovery priority, SkillSummary/SkillDefinition, session-prefix catalog, model-facing skill loading |
| compaction.md | the compaction seam: the compact/* session events, CompactionResult, the CompactService interface |
| subagent.md | the subagent seam: the named-provider registry, SubagentStartRequest/Result/Run, the start-time-vs-runtime capability split |
| web.md | the web access seam: WebSearchRequest/Result, WebFetchRequest/Result, WebFetchBody, provider availability, WebError |
| spill.md | the spill storage seam: SaveTextSpill, SpillOwner/SpillSource, SpillRef, the branded SpillLocator |
| workflow.md | the workflow seam: WorkflowStartRequest, WorkflowMeta, WorkflowRun/Result, the workflow/* event payloads, WorkflowError fatality |
| tasks.md | the background-task runtime: branded TaskIds, the producer contract, consumer views, ctx.tasks service behavior |
| permission.md | the permission-preset layer: PresetSpec/PresetOption, the derived custom state, the log-only permission/preset event |
| plan.md | plan mode: the log-only plan/mode state, pending-selection flush, PlanModeConfig, the exit_plan_mode review arc |
| invariants.md | the runtime-invariant registry: selection Config, InvariantInstaller/InvariantFailure, the empty-companion contract |
| http-server.md | the HTTP carrier: WebRouteKind/WebRoute, match order, the claimable fallback seat, index taps |
| storage.md | the storage subsystem: the backend contract (StorageBackend), StorageForms, DomainSpec/Domain, domain/changed |
| workspace.md | the workspace registry: Workspace/WorkspaceId, registration and resolution, the session cwd relationship |
| client-modules.md | the web plugin table: dshClient declarations, WebBootGraph wire composition, the bundle route and index tap |
| session-projection.md | the projection seam: SessionProjectionMap, the pure ProjectionDefinition unit, ProjectionSnapshot's consistent cut, the change feed |
| telemetry.md | the session-telemetry capability seam: TelemetryRecord/TelemetrySeverity, the TelemetryBackend contract, the telemetry/record redact waterfall |
Type declarations and their JSDoc on these pages are source-equivalent and drift-checked by
pnpm run verify-type-equiv(see development.md). Ordinary blocks preserve complete declarations;public-apiblocks preserve body-stripped public class declarations. Cordis services and events use each page's generated Cordis surface section.