docs: tighten prose audit after master retarget

packages/support/invariants/README.md

@@ -39,7 +39,7 @@ Agent status (per agent):
 
 Model requests (on `llm/stream`):
 
-- **a loop-built request is exactly what the log reconstructs** — a frozen request with a live `sessionId` (the loop-built marker; hand-built one-shots like compaction's summarize are unfrozen and skipped) must carry frozen `messages` deep-equal to the derivation over the log prefix strictly before the in-flight step's `step/start` (rebuilt through a FRESH `Session`, so the live cache cannot vouch for itself — and boundary-correct: content logged after `step/start` legitimately belongs to the next request), and every non-content field must equal the fold of the log's `request/header*` events (see [the reconstructability RFC](../../../docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md)). Registered with `prepend: true` so a short-circuiting `llm/stream` listener (the replay adapter) cannot silence it; prepend orders it against append-registered listeners only — correctness rests on the seq-bounded rebuild, never listener timing.
+- **a loop-built request is exactly what the log reconstructs** — frozen requests with a live `sessionId` must match a fresh derivation bounded before the in-flight `step/start`, while non-content fields match the folded request headers. The check is prepended so ordinary short-circuiting stream listeners cannot skip it; correctness comes from the sequence boundary, not listener order. See the [reconstructability RFC](../../../docs/rfc/implemented/architecture/2026-07-05-reconstructable-requests.md).
 
 On any violation it throws `InvariantError` (`code: 'INVARIANT'`).
 

packages/support/invariants/src/index.ts

@@ -1,19 +1,6 @@
 /**
- * Dev-mode invariants: a pure-listener plugin that asserts relationships in
- * the harness event contract at runtime.
- *
- * Everything is a plugin — this is just listeners on `session/created`,
- * `session/event`, `agent/status`, and the scoped dispatch and request seams.
- * It is **off in production**: enable it in tests and demos, where a contract
- * violation should be a loud failure rather than a subtle one. It doubles as
- * executable documentation of the event taxonomy: the assertions below are
- * the contract.
- *
- * Session owns immutable log storage: it snapshots and deep-freezes every
- * accepted event at the source. This plugin checks relationships that one
- * event's types and immutability cannot express, including turn/step nesting,
- * scoped dispatch, status transitions, and request reconstructability.
- *
+ * Dev-only listener plugin for cross-event lifecycle, scope, and request
+ * invariants that types cannot express.
  * @module @deepseek-ai/dsh-invariants
  */
 

packages/support/invariants/tests/invariants.spec.ts

@@ -803,12 +803,7 @@ describe('request-reconstruction cross-check (llm/stream)', () => {
 
 describe('request cross-check ordering (prepend)', () => {
   it('runs ahead of a short-circuiting llm/stream listener registered before it', async () => {
-    // The replay adapter returns its chunks WITHOUT calling next(), which
-    // would silence a later-registered check — snapshot compositions load
-    // replay before the app bundle that loads invariants. The check prepends,
-    // so it fires ahead of append-registered listeners regardless of load
-    // order. (Prepend orders it against APPENDED listeners only; correctness
-    // rests on the seq-bounded rebuild, not on listener timing.)
+    // The prepended check must run before a short-circuiting replay listener.
     const ctx = new Context()
     await ctx.plugin(SessionStore)
     ctx.on('llm/stream', () => (async function* () {})() as never) // short-circuits, no next()