packages/session-projection/README.md

# session-projection/

English | [中文](README.zh.md)

Session-projection capability family: the seam through which domain host plugins serve whole current values of log-derived per-session state to client carriers.

| Package | ctx key | Role |
|---|---|---|
| [`session-projection`](session-projection/README.md) | `sessionProjections` | The interface package: the merge-extensible `SessionProjectionMap` type table, the `ProjectionDefinition` unit contract, and the eagerly driven registry carriers read synchronously |
| [`session-projection-cache`](session-projection-cache/README.md) | `sessionProjectionCache` | Persisted projection cache: durable per-session unit checkpoints over the domain data form, throttled write-behind with mandatory turn/end + detach points, and the cold-read ladder (cache row + persistence tail replay) |
feat: dsh-session-projection seam package (ctx.sessionProjections registry) 2026-07-27 16:06:20 +08:00			`# session-projection/`

docs: bilingual counterparts for the projection READMEs; review-driven RFC precision 2026-07-28 01:19:30 +08:00			`English \| [中文](README.zh.md)`

feat: dsh-session-projection seam package (ctx.sessionProjections registry) 2026-07-27 16:06:20 +08:00			`Session-projection capability family: the seam through which domain host plugins serve whole current values of log-derived per-session state to client carriers.`

			`\| Package \| ctx key \| Role \|`
			`\|---\|---\|---\|`
docs: bilingual counterparts for the projection READMEs; review-driven RFC precision 2026-07-28 01:19:30 +08:00			\| [`session-projection`](session-projection/README.md) \| `sessionProjections` \| The interface package: the merge-extensible `SessionProjectionMap` type table, the `ProjectionDefinition` unit contract, and the eagerly driven registry carriers read synchronously \|
feat: dsh-session-projection-cache — durable projection checkpoints and the cold-read ladder 2026-07-28 01:26:19 +08:00			\| [`session-projection-cache`](session-projection-cache/README.md) \| `sessionProjectionCache` \| Persisted projection cache: durable per-session unit checkpoints over the domain data form, throttled write-behind with mandatory turn/end + detach points, and the cold-read ladder (cache row + persistence tail replay) \|