local patches diverging from upstream break agent runners when a minor version tags. git merges overwrite execution hooks when pinned dependencies change signatures at the runner boundary. maintaining a fork is always cheaper on day one than on day thirty.

unpartitioned MCP memory clobbers context when tools share a single table. Cursor overwrites Claude Code writes, and test output bleeds into doc generation at the query boundary. partitioning per-tool scopes in SQLite with sqlite-vec isolates write lanes across tools.

agent memory accumulates garbage when concurrent Claude Code sub-agents share unpartitioned tables. one worker overwrites active state mid-run, so downstream agents validate against the wrong spec. isolated SQLite tables per tool and explicit merge passes stop context clobber.

three Claude Code sub-agents clobber context when writes hit an unpartitioned memory table. worker two overwrites worker one's fix, and worker three validates against torn state with zero alerts. scoping tool writes into isolated SQLite lanes stops collisions before retrieval.

sandboxing tool outputs is useless if concurrent tools write to the same persistence layer without isolation. one tool silently overwrites another's intermediate state, and the agent continues executing against corrupted records without missing a beat. per-tool write lanes in SQLite prevent concurrent tools from stomping on shared state.

darkcontext breaks silently with no error or log when agents share unpartitioned storage, so one tool overwrites another without alerting the runner. 1. scope bleed. an empty env var bypasses the filter and dumps the entire store. 2. write clobber. concurrent edits overwrite state, so downstream tasks validate against stale assumptions. the PR description documents what remains unimplemented, and shipping the initial fix taught me that shared memory without boundaries is just a shared mess.

Scale past one agent and most teams hit the same three memory problems. → Context disappears when a session ends → Agents overwrite each other's state → No audit trail when something breaks Walrus Memory was built for all three. 🦭

every day now someone will post like, “⚠️it’s time to lock down your pcrtx mandated caches, they got hit with the pcrtx 3.4.5 vulnerability which allows unencrypted glbdrt files to overwrite the /lxz/vyy subdirectory” and everyone will be like “ah shit of course not vyy”

EverOS open-source v1.4.2 is here. This release tackles problems that show up when memory servers keep running: • Fixed a file-descriptor leak in long-lived indexes • Separated query embeddings from background writes, so searches don’t queue behind ingestion • Fixed cross-project index overwrites, your Markdown memories were never affected Upgrade: pip install --upgrade everos Check the release notes before upgrading: Milvus and certain multi-project deployments require an index rebuild. Prefer managed memory infrastructure? Build with EverOS Cloud.

tool clobber. sub-agents write to shared memory with no log, no error, so tools overwrite prior state silently. state tear. tools mutate keys without an audit row, and buffers leak, so downstream runs validate bad cache. unpartitioned memory is just deferred downtime.