coordination-engine/workplans/archived/260914-COORDINATION-WP-0005-prj-cross-repo-and-agent-mode.md

id	type	title	domain	repo	status	owner	topic_slug	flavor	created	updated	related	origin	origin_ref	state_hub_workstream_id
COORDINATION-WP-0005	workplan	prj- awareness, cross-owner waits, and agent coordination mode	communication	coordination-engine	finished	grok	communication	extension	2026-09-14	2026-09-14	COORDINATION-WP-0002 COORDINATION-WP-0003 STATE-WP-0092 CUST-WP-0072 CUST-ADR-005	residual-policy	the-custodian/history/20260914-open-workplan-chokepoints.md	abb4bdaf-4100-5c93-9773-4213b1a4edf5

prj- awareness, cross-owner waits, and agent coordination mode

Founder direction 2026-09-14: cross-owner coordination is the top theme holding the open-workplan count up. Tackle it with coordination-engine, not more inbox wait notes. The engine must understand prj- workplans as drivers of cross-repository work (ADR-005, project-repository-flavor_v0.1.md). Agent instructions for Codex, Claude, Grok and others change after that mode exists, so they coordinate instead of stranding.

This repo owns observation, leases, wake-up, checkpoints, safety gates and receipts (COORDINATION-WP-0003). State Hub remains the work-record read model. Product implementation stays in participating repos.

Do not enable live worker injection as a side effect of this plan. Do not invent credential vending.

Model prj- workplans as cross-repo drivers

id: COORDINATION-WP-0005-T01
status: done
priority: high
state_hub_task_id: "de21e1da-e66d-51d4-8689-6017346199bd"

Extend spec/coordination-model-v0.1.md (or a v0.2 successor) so a CoordinationCase can be driven by a project-repository workplan: repo_flavor: project / prj-* identity, child workplans in participating repos, and depends_on edges as commitments rather than prose. Distinguish driver (the prj- plan) from implementers (product repos). Record what is out of scope: the engine does not author workplans and does not replace State Hub.

Done when the spec names the driver/implementer split, maps prj- workplans onto cases/commitments, and has a worked example from an existing project repo.

Cross-owner wait handling mode

id: COORDINATION-WP-0005-T02
status: done
priority: high
depends_on: [COORDINATION-WP-0005-T01]
state_hub_task_id: "9e99e12b-b4a2-569a-bce2-dbdc645d75a1"

Define the handling mode that replaces “set status wait and hope”: observe the foreign owner’s record, open or attach a coordination case, lease/wakeup only for selected gita-registered worker targets, checkpoint progress, fail closed on missing authorization, and emit a receipt the hub can project. Cover the common estate pattern: repo A blocked on repo B owner return (security subsystems included). No silent re-assignment of another owner’s tasks.

Done when the mode is specified with entry/exit conditions, safety gates, and a receipt shape, reconciled with the v0.1 worker-coordination service rather than forked.

State Hub adapter for workplans, flavor, and prj-

id: COORDINATION-WP-0005-T03
status: done
priority: medium
depends_on: [COORDINATION-WP-0005-T01, STATE-WP-0092]
state_hub_task_id: "2c5d91a5-2e77-5778-ac52-f95ea5c2ed63"

Read workplans, depends_on, flavor, and repo classification (including prj-) from State Hub. Residual flavor is not a coordination driver unless promoted. Until STATE-WP-0092 is indexed, stay wait on that dependency; T01–T02 may proceed on files and classification standards.

Done when a local test can build a case from hub JSON for a prj- workplan and refuse to treat a residual as actionable demand.

Agent instruction pack

id: COORDINATION-WP-0005-T04
status: done
priority: high
depends_on: [COORDINATION-WP-0005-T02]
state_hub_task_id: "967e709e-1fe8-5ee0-a544-41e7cfe13f4b"

After the mode exists, update agent instructions so Codex, Claude, Grok and other workers can tackle or coordinate cross-repo work:

• the-custodian/AGENTS.md and session protocol
• coordination-engine AGENTS.md
• repo-seed / fleet template snippets used by other repos

Instructions must say: follow the coordination-engine mode; do not mint a stranded wait when a prj- driver exists; do not implement residuals; do not message ops-warden for secrets. Keep the pack short.

Done when the named files describe the mode with a pointer to the spec, and a new session can choose “coordinate via engine” without inventing a parallel process.

2026-09-14: T01–T04 landed. Specs: spec/coordination-model-v0.2.md, spec/cross-owner-wait-mode-v0.1.md. Adapter: coordination_engine.project_driver.build_driver_case (HFACT fixture; residual refused). Agent pack in this AGENTS.md, the-custodian session protocol, and repo-manager scaffold/rapp templates. Live worker injection was not enabled.