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refactor(session): make surface the sole derivation path, drop legacy fallback

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Hypatia May
2026-06-23 13:05:59 +08:00
parent 09d497d5c5
commit 6089e226bc
11 changed files with 87 additions and 145 deletions
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2
docs/cordis-catalog/events-and-services.md
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@@ -390,7 +390,7 @@ get(id: SessionId): Session | undefined
list(): Session[]
```
Source: [`packages/core/session/src/index.ts:303`](../../packages/core/session/src/index.ts)
Source: [`packages/core/session/src/index.ts:300`](../../packages/core/session/src/index.ts)
### `ctx.systemPrompt` — `SystemPrompt`

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docs/rfc/implemented/architecture/2026-06-18-session-surface.md
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@@ -53,7 +53,7 @@ The dev-mode invariants plugin validates: `sourceEventSeqs` references (non-empt
## Consequences
- **`packages/core/session`**: New `surface.ts` (`SurfaceManager`), new types (`SurfaceOp`, `SurfaceAppendOpts`), new fields on `SessionEvent`, modified `append()` (third optional `SurfaceAppendOpts` param), refactored `deriveMessages()` (surface path + legacy fallback), surface-aware `repair.ts`.
- **`packages/core/session`**: New `surface.ts` (`SurfaceManager`), new types (`SurfaceOp`, `SurfaceIntent`), new fields on `SessionEvent`, modified `append()` (third required `SurfaceIntent` param), refactored `deriveMessages()` (surface path + legacy fallback), surface-aware `repair.ts`.
- **`packages/core/agent-loop`**: All surface-capable appends pass surface opts. Chunk seqs are collected for `assistant/message` provenance; `tool/call` seqs are captured for `tool/result` provenance.
- **`packages/session-persistence/session-persistence-sqlite`**: Two new nullable TEXT columns (`source_event_seqs`, `surface_op`) on the `events` table; `SCHEMA_VERSION` bumped (bump-and-reject, no migration).
- **`packages/support/invariants`**: Surface-related validation rules.