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# Conflicts:
# packages/session-orchestrator/src/extension.ts
# packages/session-orchestrator/src/orchestrator.ts
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vision handoff
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limits with oldest-agent-first scheduling
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transport-contract API types
Wave 3 of transparent SSH support (2 parallel owner-agents on disjoint packages).
- session-orchestrator: thread computerId end-to-end through the turn, mirroring
cwd exactly — StartTurnInput/EnqueueInput/handleMessage/TurnLifecyclePayload
gain computerId; runTurnDetached resolves effectiveComputerId via
conversationStore.getEffectiveComputer(convId, override), persists the override,
threads into RunTurnInput + ToolAssembly. Register a remote-degradation
tools-filter (filterRemoteIncompatibleTools) that, when assembly.computerId is
set (REMOTE), drops the 'lsp' tool + any '__'-namespaced MCP tool (local
processes that can't see remote files); LOCAL (computerId undefined) is a
passthrough — byte-identical to today. +21 tests.
- transport-contract: + computerId on ChatRequest (flows to ChatSendMessage) +
computer endpoint API types (ComputerListResponse, ComputerResponse,
ComputerStatusResponse, SetConversationComputerRequest,
ConversationComputerResponse, SetWorkspaceDefaultComputerRequest,
TestComputerResponse) — mirrors the cwd/workspace endpoint types.
- CR-1 (non-blocking, folded into wave 4): MCP filter doesn't preserve computerId
on the returned ToolAssembly.
- cache-warming computerId threading intentionally DEFERRED (user request) —
noted as a known performance-only limitation in tasks.md.
Verified: tsc -b EXIT 0, biome clean, 1620 vitest pass (was 1599, +21).
Refs: notes/ssh-support-plan.md (decisions §0.5/§13). No merge or push.
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session-orchestrator:
- Wire systemPromptService as optional dep (lazy via host.getService)
- Regular turn: construct on first turn (new conversation), get on subsequent
turns, set on providerOpts.systemPrompt (cache-safe)
- Compaction: construct (fresh resolve) + append COMPACTION_SYSTEM_PROMPT
- 12 new tests (construct/get/service-unavailable/compaction)
transport-http:
- GET /system-prompt (returns template or DEFAULT_TEMPLATE)
- PUT /system-prompt (validate + setTemplate, 503 when unavailable)
- GET /system-prompt/variables (static catalog, always available)
- 6 new tests
system-prompt service: added getTemplate/setTemplate to interface + impl.
1396 vitest pass. typecheck + biome clean.
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ModelInfo (kernel contract):
- Add contextWindow?: number field
OpenAI-stream listModels:
- Parse contextWindow from common field names (context_length,
context_window, max_context_length, max_tokens)
Transport-contract:
- ModelsResponse: add optional modelInfo map (model name → { contextWindow? })
- Add ModelMetadata type
- Rename CompactThresholdResponse → CompactPercentResponse
- Rename SetCompactThresholdRequest → SetCompactPercentRequest
Credential store:
- Add getModelInfo(modelName) method — resolves full ModelInfo
(including contextWindow) for a <credential>/<model> string
Transport-http:
- GET /models now includes modelInfo with contextWindow per model
- Rename compact-threshold endpoints → compact-percent
Session-orchestrator:
- Auto-compact now uses contextSize (not overcounted usage.inputTokens)
compared against contextWindow * (percent / 100)
- Default percent: 85 (was flat 350000)
- resolveModelInfo dep added to look up contextWindow
- Passes modelName from the settled turn to the compaction service
Conversation store:
- Rename getCompactThreshold/setCompactThreshold → getCompactPercent/setCompactPercent
- compactThresholdKey → compact-percent key
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Implement roadmap item 10: conversation compaction to reclaim context
window without losing the thread.
Wire (0.11.0):
- Add CompactionResult type
- Add ConversationCompactedMessage WS event
Transport-contract (0.15.0):
- Add CompactResponse, CompactThresholdResponse, SetCompactThresholdRequest
- Add ConversationCompactedMessage to WsServerMessage union
- Re-export CompactionResult
Conversation-store:
- replaceHistory: delete all chunks, reset seq, append new messages
- getCompactThreshold / setCompactThreshold (per-conversation setting)
- compactThresholdKey added to keys.ts
Session-orchestrator:
- CompactionService interface + compactionHandle
- conversationCompacted hook descriptor
- createCompactionService: load history, split old/recent, call provider
to summarize, replaceHistory with [system: summary] + recent N
- Auto-trigger: resolveCompaction lazy dep, fires after turn settles
(checks threshold, non-blocking)
- Hook declared in manifest contributes.hooks + services
Transport-http:
- POST /conversations/:id/compact (manual trigger)
- GET /conversations/:id/compact-threshold (read setting)
- PUT /conversations/:id/compact-threshold (set setting)
Transport-ws:
- Subscribe to conversationCompacted hook
- Broadcast conversation.compacted WS message
CLI:
- dispatch compact <conversationId> command
FE handoff: frontend-compaction-handoff.md
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Implement roadmap item 9: tab persistence across devices.
Wire (0.10.0):
- Add ConversationStatus type (active | idle | closed)
- Add status field to ConversationMeta
Transport-contract (0.14.0):
- Add conversation.statusChanged WS message to WsServerMessage union
- Re-export ConversationStatus
Conversation-store:
- Track status in ConversationMetaRow (default: idle)
- getConversationStatus / setConversationStatus methods
- listConversations accepts { status: ConversationStatus[] } filter
- Old meta rows without status default to idle on read
Session-orchestrator:
- conversationStatusChanged hook descriptor
- Emit on transitions: idle→active (turn start), active→idle (turn settle),
→closed (closeConversation)
- Persist status to store as fire-and-forget side effect
- Declare hook in manifest contributes.hooks
Transport-ws:
- Subscribe to conversationStatusChanged hook
- Broadcast conversation.statusChanged WS message to all clients
Transport-http:
- GET /conversations?status=active,idle filter (parseStatusFilter pure helper)
- POST /conversations/:id/close now sets status to closed
CLI:
- dispatch list defaults to active,idle (excludes closed)
- --status <state> flag to filter by single status
- --all flag to include closed
FE handoff: frontend-conversation-lifecycle-handoff.md
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A per-conversation message queue (new message-queue extension) holds user
messages enqueued while a turn generates; delivered mid-turn as steering at the
tool-result boundary (or carried to a new turn if no tool call fires).
- kernel: RunTurnInput.drainSteering callback (generic; kernel stays pure)
- wire 0.7.0->0.8.0: QueuedMessage, QueuePayload, TurnSteeringEvent (additive)
- transport-contract 0.11.0->0.12.0: POST /conversations/:id/queue + chat.queue WS op
- message-queue ext: queue state + per-conversation custom surface (rendererId message-queue)
- session-orchestrator: enqueue facade + drainSteering wiring + post-seal carry
- transport-http/ws: queue endpoint + chat.queue op (fixes WsClientMessage exhaustive switch)
- host-bin: register message-queue
1043 vitest + 199 transport bun pass; tsc/biome clean; boot smoke clean.
FE courier: frontend-message-queue-handoff.md.
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conversation close (+CR-1 table, CR-2 scope)
CR-4a: warming defaults OFF (opt-in per conversation); re-enabling restores
the persisted interval.
CR-4b: re-arm BEFORE surface notify so post-warm updates carry the FUTURE
nextWarmAt; turnSettled/turnStarted now also push (fresh schedule after seal,
null while generating).
CR-4c: POST /conversations/:id/close — per-turn AbortController wired to the
kernel runTurn signal (partial persist + normal seal, done.reason "aborted"),
new conversationClosed hook, cache-warming disables sync + persists OFF.
Disconnect/chat.unsubscribe semantics unchanged.
CR-4d: no change needed — initial surface echo already at HEAD (stale up2 boot
on the FE probe).
CR-1: loaded-extensions emits a single custom rendererId:"table" field
(TablePayload exported; Name|Version|Trust|Activation, all trust tiers).
CR-2: SurfaceCatalogEntry.scope?: "global"|"conversation" on both surfaces.
Contracts: ui-contract 0.1.0→0.2.0, transport-contract 0.8.0→0.9.0 (additive).
907 tests pass (+13); live-verified against bin/up (warms @5s with future
nextWarmAt; mid-turn close → abortedTurn:true + done.reason aborted).
Courier: frontend-cache-warming-lifecycle-handoff.md.
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nextWarmAt/lastWarmAt surface
FE CR-3 (backend-handoff-cache-warming-timer.md). The inversion: session-orchestrator's
warm() (the single chokepoint for manual /chat/warm AND the automatic timer) emits a
warmCompleted bus event; cache-warming subscribes and does ALL post-warm handling. So a
manual warm now re-arms the timer + refreshes the surface with NO transport-http change
(core can't depend on the standard cache-warming ext).
- session-orchestrator: warmCompleted event hook + emit from warm() on success
- cache-warming: warmCompleted subscriber unifies result handling (manual + automatic);
adds nextWarmAt/lastWarmAt state + a custom 'cache-warming-timer' surface field
- fix: createWarmService was missing the emit dep (deps.emit?. silently no-oped) →
wired it + made emit REQUIRED so it can't regress
Live-verified vs claude haiku: manual POST /chat/warm now logs cache-warming 'warm
complete' ~2s after the turn (not the 4-min timer) → manual warm reaches the warmer.
800 vitest + 109 bun green; tsc -b 0; biome clean.
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Backend-driven warming targeting whatever provider a conversation uses (incl. the
external Claude provider-anthropic). Core engine + on/off + last-cache-% done;
interval-as-view-control pending a ui-contract NumberField (surface-system gap).
Mechanism:
- kernel: expose HostAPI.emit (typed bus event emit; counterpart of on)
- session-orchestrator: turnStarted/turnSettled event hooks (conversationId/cwd/model);
warm() service (cacheWarmHandle) reusing the real-turn assembly (byte-identical prefix,
provider-agnostic), refuses mid-turn, never persists/emits, returns Usage
- cache-warming (new ext): per-conversation timers (arm on settle, cancel on start,
in-flight invalidation), calls warm(), pct=round(clamp(cacheRead/input,0,1)*100),
persists {enabled,intervalMs} (default on/240s), registers a controls surface
- host-bin: register cache-warming; transport-http: HostAPI stub +emit (fan-out)
Honors old-code invariants. 760 vitest + 109 bun = 869 tests; tsc -b EXIT 0; biome clean.
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Skills are markdown in .skills/ dirs (~/.skills + <cwd>/.skills, cwd shadows home;
name = filename). Format: line1 summary, line2 ---, body line3+; load strips the
first two lines; malformed = no summary but still loadable.
Mechanism (first use of the context-assembly filter chain, §3.2):
- kernel: expose HostAPI.applyFilters (delegates to bus.applyFilters)
- session-orchestrator: define/export toolsFilter + ToolAssembly; apply once per turn
before runTurn (cache-stable across steps), threading cwd + conversationId
- skills (new ext): pure parse/merge/render + load_skill tool (live read, path-contained)
+ a toolsFilter filter rewriting load_skill's description + name enum per cwd
- host-bin: register skills in CORE_EXTENSIONS
- transport-http: fix HostAPI test stub for the new applyFilters method (fan-out)
734 vitest + 109 bun = 843 tests; tsc -b EXIT 0; biome clean; clean live boot.
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Expose the backend's authoritative token+timing metrics on the live AgentEvent
stream (observability-only -> now also client-facing). All additive/optional.
- [email protected]: new TurnStepCompleteEvent (type:step-complete) with per-step
ttftMs/decodeMs/genTotalMs; usage += stepId; tool-result += durationMs (exec);
done += durationMs (turn wall-clock) + usage (turn total). RunTurnInput += now?.
[email protected] (re-export bump).
- kernel-runtime: when now injected, measures + emits the above (reuses the
ttft/decode first-token detection); omits timing gracefully without a clock.
- session-orchestrator: adds now? to deps, threads into RunTurnInput; extension
activate injects () => Date.now().
- transport/cli/host-bin: untouched (verbatim pass-through; additive fields).
FE handoff: frontend-metrics-handoff.md. typecheck clean; 520 vitest + 89 bun;
biome 0/0. Replay/persistence = deferred Pass 2 (documented in tasks.md).
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per-turn cwd through orchestrator/transport/host-bin
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sink (250 tests)
Structured, agent-first logging captured durably to an append-only journal file.
Kernel (contracts/logging.ts): leveled/attributed Logger + Span, auto-scoped per extension (host stamps manifest.id, unspoofable), incremental span records (open/close) for crash-reconstructable traces, injected LogSink (pure record-builder). ctx.log on ToolContract; runTurn opens turn/step/tool-call spans and captures the verbatim pre-mutation prompt (the 'before') on the step span.
journal-sink (new package, bootstrap dep — not an extension): LogSink appending NDJSON to a rotating journal; pure serialize + thin fs edge; fail-safe drop, never blocks a turn. host-bin injects it via HostDeps; session-orchestrator threads host.logger (childed per turn) into runTurn.
Redaction is per-extension self-redaction (no shared helper — isolation over DRY). The out-of-process collector + SQLite store + the verbatim 'after' provider.request capture are Phase B / next (notes/observability-design.md §10/§11).
Verified: tsc -b clean, 250 tests (218→+32), biome clean. Live boot: a turn's journal holds host logs + turn/step spans (open+close) + the prompt:before record with the verbatim messages array.
Harness: ORCHESTRATOR §3 rule-scoping map; .dispatch/rules/isolation-over-dry.md; notes/observability-design.md (design D1–D10 + Phase A/B plan).
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input tabId/turnId (CR-3); simplify orchestrator wiring (167 tests)
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build graph (164 tests)
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