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Removed 40+ markdown files that were cluttering the repo root:
- frontend-*-handoff.md (28 files) — historical API contract handoffs, features all implemented
- backend-to-fe-handoff.md, backend-to-fe-handoff-2.md — old handoff docs
- broken-chat-repair-handoff.md — old repair handoff
- PLAN-mcp.md, PLAN-per-edit-diagnostics.md — old planning docs
- ai-review-report.md, crash-review-report.md — one-time review reports
- tasks.md, HANDOFF.md — outdated status docs (git log is the source of truth)
Kept: AGENTS.md, GLOSSARY.md, ORCHESTRATOR.md, README.md
Also: gitignored ai-review-report.md so future Gemini reviews don't commit it
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backend, dispatch-web → frontend)
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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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compactedFrom
Reworked compaction to match the confirmed design:
- The compacted conversation KEEPS its original ID (messaging between
agents is unaffected — the ID never changes)
- The old full history is forked to a new archive conversation (new UUID)
- The archive inherits the source's compactedFrom, creating a chain:
A → Y → X (walk compactedFrom backward)
- A's history is replaced with [summary + recent N]
- A.compactedFrom = archive ID
forkHistory: inherit compactedFrom from source (not set to sourceId),
so archives chain backward to previous archives.
FE: no tab switching needed — the ID doesn't change. Just reload history.
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Compaction now preserves the full pre-compaction history:
1. Forks the conversation to a new archive ID (complete copy: chunks,
metadata, cwd, reasoning-effort). Archive gets status=closed,
title='Archive: <original>', compactedFrom=<originalId>.
2. Replaces the original conversation's history with [system: summary]
+ recent N messages (same as before).
3. Sets compactedFrom=<archiveId> on the original conversation's metadata.
The original history is never destroyed. The archive is accessible via
GET /conversations/:id using the archive ID.
Wire/contract changes:
- ConversationMeta: add compactedFrom?: string
- CompactionResult: add archiveId: string
- ConversationCompactedMessage: add archiveId
- CompactResponse: add archiveId
Conversation store:
- forkHistory(sourceId, targetId): copies all chunks + metadata to a
new conversation ID
- setCompactedFrom(conversationId, archiveId): marks the conversation
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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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