---
name: CTO Core Route Admission Guard Issues
status: validated
lifecycle_classification: sot
owner: jp
created: 2026-06-02
last_reviewed: 2026-06-02
core_promotion_status: not-promoted
source: .sot/03-PROTOCOLS/CTO-CORE-ROUTE-ADMISSION-GUARD-PRD.md
---

# CTO Core Route Admission Guard Issues

Local planning SOT only. Not a Core Protocol. Not active Core authority.

Core Route Admission Guard.

## Issue: CTO-WORK-089 - Core Route Admission Guard PRD

Type: AFK.

Status: validated.

Acceptance:

- Define Core Route Admission Guard.
- Require `core_route_admission_status: not_admitted`.
- Require `guard_status: blocked`.
- Require `blocked_reason: active_or_conflicting_core_work_present`.
- Require `do_not_touch_other_agent_work: true`.
- Require `ready_for_core_route_review: true`.
- Require `recommended_next_decision: open_governed_core_prd_route`.
- Require candidate-only recommendation until guard passes.
- Require `idle_governed_core_route_required: true`.
- Require `no_active_conflicting_core_worktree_required: true`.
- Require `runtime_default_activation: false`.
- Require `core_promotion_status: not-promoted`.
- Require `next_allowed_action: wait_or_open_later_core_route_when_idle`.
- Forbid Core mutation, Core reservation, Core promotion, other-agent worktree mutation, other-agent process termination, Case default activation, Case execution, target repository mutation, and mutation of `../core/`.

## Issue: CTO-WORK-090 - Core Route Admission Guard Record

Type: AFK.

Status: validated.

Blocked by: `CTO-WORK-089`.

Acceptance:

- Create the Core Route Admission Guard record.
- Record fail-closed status.
- Record `core_route_admission_status: not_admitted`.
- Record `ready_for_core_route_review: true`.
- Record `recommended_next_decision: open_governed_core_prd_route`.
- Record future read-only checks: Core worktree list, Core main status, active Core worktree status, Core Sequence Protocol route, and running Core validation processes.
- Record idle governed Core route required.
- Record no active conflicting Core worktree required.
- Record no Core mutation.
- Record no Core reservation.
- Record no Core promotion.
- Record Runtime default activation remains false.
- Record Do not activate Case as default backend.

## Issue: CTO-WORK-091 - Core Route Admission Guard Closeout

Type: AFK.

Status: validated.

Blocked by: `CTO-WORK-090`.

Acceptance:

- Create closeout.
- Reference `CTO-WORK-085`, `CTO-WORK-086`, `CTO-WORK-087`, `CTO-WORK-088`, `CTO-WORK-089`, and `CTO-WORK-090`.
- Record active or conflicting Core work blocks this route.
- Record S135 conflict avoidance.
- Record `next_allowed_action: wait_or_open_later_core_route_when_idle`.
- Record no Core mutation, no Core reservation, no Core promotion, and no runtime default activation.

## Issue: CTO-WORK-092 - Core Route Admission Guard Validation

Type: AFK.

Status: validated.

Blocked by: `CTO-WORK-091`.

Acceptance:

- Update `tools/validate_cto_child.py`.
- Register `CTO-WORK-089`, `CTO-WORK-090`, `CTO-WORK-091`, and `CTO-WORK-092`.
- Require PRD, issue, guard, and closeout phrases.
- Require Workboard statuses validated.
- Require `python3 tools/validate_cto_child.py` to pass.
- Require Core caveman prose discipline before final claim.

## Granularity Check

This is one vertical child-local guard: define the guard, record the fail-closed route state, close out the evidence, and validate it. It does not edit Core and does not overlap active Core S135 work.