Skip to content
PointSav Digital Systems

Revision as of · 61ed7fe2

Historical revision — this record as it stood on 25 May 2026, not the current version. View the current record →

Multi-engine session coordination — session locks, boot_id, and role guards

Totebox Orchestration supports multiple AI engines and human operators working concurrently on the same host. The coordination problem is not theoretical — when two sessions touch the same .git/index, the working tree corrupts in ways that are expensive to diagnose.

The protocol is intentionally minimal: each engine writes .agent/engines/<engine-id>/session.lock at startup. The lock carries the engine identifier, session role, parent PID, ISO-8601 start time, and the boot ID from /proc/sys/kernel/random/boot_id. The boot ID is the key — it lets a future session decide whether a lock is stale (a different boot ID means the host rebooted between sessions, making the lock definitively dead) or potentially live (same boot ID, check kill -0 <pid> for process liveness).

The totebox-session model assigns exactly one hub session to the workspace root. That session writes role.lock at .agent/role.lock; a second attempt errors out unless the operator manually clears the lock. Archive sessions are scoped to individual archives and write their locks under that archive's .agent/engines/<engine-id>/session.lock.

What this does not solve: two engines opened in the same archive. The session-lock protocol detects the conflict and warns, but does not physically prevent it — flock on .git/index does that. A planned PreToolUse hook adds a check that refuses any write call in an archive whose session.lock shows a different live engine. The workspace health-check tool includes a cross-user index.lock detector that surfaces same-archive locks held by different operators.

Stale-lock cleanup is automatic when boot IDs disagree, manual otherwise. A cleanup pass on 2026-05-18 removed 8 such locks — 3 from a previous boot, 5 from dead PIDs in the current boot. Hub sessions should run the health-check tool early and clear stale locks before opening any archive.

See also

Important Information

Important Information

Corporate structure. PointSav Digital Systems ("PointSav") is a trade name of Woodfine Capital Projects Inc. ("Woodfine"). PointSav does not itself offer, sell, or solicit any security. Any securities offering associated with Woodfine's real-property direct-hold solutions is made exclusively by Woodfine, and only by means of the applicable Private Placement Memorandum.

No investment advice. This wiki's content is provided for engineering, operational, research, and development purposes. Nothing on this wiki constitutes investment advice or a solicitation to invest in any Woodfine partnership or direct-hold solution.

Intellectual property. The PointSav name, trade name, wordmark, and marks, together with all current and future PointSav- and Totebox-branded products, services, and offerings — and the software, source code, documentation, design system, and all related materials — are proprietary to Woodfine and its affiliates, except for components identified as open source. No rights are granted except as expressly set out in a written license or agreement. See TRADEMARK.md in this repository for the full trademark notice.

Open source components. Portions of the platform are made available under permissive open-source licenses identified in the accompanying repository. Use of those components is governed by their respective license terms.

No warranty; informational use. Content on this wiki is provided for general informational purposes only and does not constitute a representation, warranty, or commitment with respect to product functionality, availability, pricing, or roadmap. Some articles describe planned or intended features, capabilities, and milestones — language such as "planned," "intended," "targeted," "may," and "expected" marks this forward-looking content, which is subject to change and does not constitute a commitment regarding future performance.

Confidentiality. Where an article describes an operational or deployment detail that is not intended for public disclosure, that article is not published on this wiki. Content here is general-purpose engineering documentation, not customer-specific configuration.

Jurisdiction. Woodfine Capital Projects Inc. is organized in British Columbia, Canada. References to the Sovereign Data Foundation on this wiki describe a planned or intended initiative only, not a current equity holder or active governance body.

Changes to this notice. PointSav may update this notice from time to time; the version posted on this page governs.

Not a filing system. This wiki is not a securities filing system, an electronic disclosure repository, or a substitute for SEDAR+ or any other regulatory filing system. Formal securities filings are made through the applicable regulatory filing system, not through this wiki.

Full disclaimer. This notice supplements, and does not replace, the full Disclaimers article. In the event of any conflict, the full Disclaimers article governs.

Read the full disclaimer →