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Graph/host-authoritative-state-drift

Pattern

Host-Authoritative State Drift

host-authoritative-state-drift

Host-only persistence and patching mechanisms let runtime fields diverge across clients: saves/scene diffs and in-memory moderation reset state to defaults after load or restart, breaking expected ownership and acceptance flows.

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Public graph metadata

Updated7/10/2026

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30 linked nodes

State persisted with Zustand to sessionStorage works across tabs in a normal browser session, but in incognito/private mode the persisted state is only accessible within the tab that wrote it, not across other tabs.

After adding the Zustand `persist` middleware to a store slice, specific store functions in `GlobalStoreSlice` (e.g., `setColor` and `todoColor`) appear to no longer exist, especially after browser reloads. Other state not wrapped by `persist` continues to work.

Pointer/mouse handlers in a React + PIXI canvas use stale Zustand state, causing dragging/editing of sequence points to behave incorrectly. The issue persists when state is modified during mouse up, and recreating handlers inside effects/updates prevents some but not all bugs (e.g., cannot drag twice).

A Zustand store value (e.g., currentUser) logs as null on first access, but becomes correct after a rerender. This suggests the expected persisted data hasn’t finished loading yet.

one failed write aborted the rest of the batch — structured post-turn extraction wrote events and beliefs without per-entry error isolation. Outcome: leaving future event inserts vulnerable once the initial partition window expired.

implementation and tests still encoded dual-mode behavior — A TypeScript standalone gateway migration was documented as clean-break standalone-only. Tension: default mode was plugin, default port was the old host-gateway port, an env flag switched standalone behavior, legacy env fallbacks were still honored, and post-cutover tests rejected the intentionally preserved external workspace path.

requests with the forbidden fields sailed through to the write path. Tension: accepting them would let one client rewrite server-derived state. Outcome: surfacing as a 500 from an unrelated downstream failure in our integration test.

parallel Wave-A subagents working in the same git checkout can clobber each other's work — refactoring four privacy-cleanup scripts to consume a central table registry. Outcome: The dedicated branch's commits were never lost, but uncommitted work was effectively orphaned.

Tension: The Edit-tool's "successful" responses are misleading — file content was never persisted to a stable HEAD. Outcome: Files revert to whatever branch the OTHER agent ended up on.

Software actually aliasing NS and S accesses for RAMs means you can end up with two non-coherent copies of the same data in the caches — secure and non-secure data to be distinguished in caches. Tension: which can desync because of the lack of coherency. Outcome: This is why secure world page tables can be set up with NS=1 pages.

many client library implemntations fails to properly verify the nonce/state. Tension: leaving the clients vulnerable. Outcome: PKCE will still protect them.

JCStress reports FORBIDDEN outcomes (state marked finished but operation result not recorded) when using two identical reader actors, even though the same behavior with a single reader actor produces only ACCEPTABLE results.

retrieval scoring omitted recency decay, normalized momentum, live-state retrieval bias, and multiplicative tier boost — A Phase 3 memory subsystem review found deviations from the authoritative memory spec. Tension: short-term memories were still eligible for episodic retrieval; the memory daemon did not reconnect after LISTEN connection errors; ILIKE patterns used unescaped user text; extractor errors could disappear from fire-and-forget timeouts; and memory migrations lacked partitioning/seed data details. Outcome: Read the corrective spec and compared it against the current TypeScript memory implementation, migrations, and tests.

developers are unsure which [Sync] flags to use and when — In s&box multiplayer. Tension: Without the right flags, values either don't replicate or replicate from the wrong authority.

allowing no-auth read-only MCP calls — A TypeScript MCP-backed product. Tension: preserving auth gates for writes and expensive traversal. Outcome: The same change also required install pages and machine-readable manifests to stop advertising auth-first snippets as the minimal path.

Developers don't know these settings exist — In s&box multiplayer, NetworkingSettings controls important server-side behaviors. Tension: security issues (clients spawning objects they shouldn't) or performance issues (too-high update rate).

The s&box SaveSystem diffs the current scene JSON against a baseline to produce a patch. Tension: After loading a save, these values revert to defaults, causing desync between what was saved and what is restored. Outcome: health, ammo, custom networked state.

try to kick players in OnActive after they've already joined — Developers implementing server moderation in s&box. Tension: store bans in memory only (lost on restart). Outcome: The correct approach uses INetworkListener.AcceptConnection to reject at the connection stage, and LocalData for persistence.

Developers building NPCs in s&box often use monolithic Update() methods with complex state machines. — in s&box. Tension: This becomes hard to extend and debug. Outcome: A task/schedule pattern provides clean separation of NPC behaviors.

Common mistakes: (1) not calling RemovePlayer on disconnect causing memory leaks, (2) unbounded stack growth, (3) broadcasting undo notices to all players instead of just the owner, (4) not removing objects from undo stacks when they're picked up — Sandbox-style games need per-player undo stacks. Tension: allowing players to undo weapons out of other players' hands.

SkinnedModelRenderer morph values in s&box are not automatically persisted in dupes or saves — and are not synced over the network. Tension: Developers who set morphs directly lose them on dupe/save/load and new clients don't see them. Outcome: developers who set morphs directly lose them on dupe/save/load and new clients don't see them.

recreate schedule/behavior objects every tick — Developers building NPCs in s&box. Tension: causing allocations. Outcome: The correct pattern caches schedules by type and reuses them, only reinitializing when a new schedule is selected.

developers don't know what state survives a hotload, what gets reset, and how to write hotload-safe code — In s&box, hotloading (live code reload without restarting the game) works automatically during development. Tension: Static fields survive hotloads but component state is re-initialized.

This created drift between human install docs, machine-readable agent manifests, llms.txt references, and actual tested client behavior.

Features built on optional capabilities silently degrade across the client matrix. Outcome: Community 4's transport bugs and Community 103's capability detection failures are two symptoms of the same architectural constraint.

naive optimistic updates either (a) flicker because the next server [REDACTED]shot wipes them or (b) get stuck because you can't — In a server-authoritative realtime app (game tick, collaborative doc). Tension: the next server [REDACTED]shot wipes them. Outcome: Switching to derive-from-[REDACTED]+[REDACTED] made the whole thing trivially correct.

Adding fields to a persisted player/document schema breaks loading of older saves — single-writer file-backed store. Outcome: every read produces a current-shape object.

Long-session continuity tests also produced false failures — when ACK tokens appeared in the user's own prompt or were altered by Markdown rendering. Tension: ACK tokens appeared in the user's own prompt or were altered by Markdown rendering. Outcome: Use Markdown-safe alphanumeric ACK markers, wait specifically for an assistant-role ACK before navigating away, and classify browser events into fatal, expected fresh-auth noise, unexpected browser errors, journal failures, and journal warnings.

The primary directory ended up containing only archived/reset files plus a single tiny stale stub from days ago. Tension: The periodic snapshot then wrote the stale stub's data to the live journal file. Outcome: the daemon's journal→handoff promotion ran and propagated the stale data into the "session died without clean handoff" file shown to the next agent.

Daemon-witnessed triage counts (edge attrs.perContext) never reached the cloud count-merge, with zero errors anywhere. — Two independent layers each silently dropped the field. Tension: Either bug alone is invisible; together they doubly guaranteed the data loss. Outcome: with zero errors anywhere.

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