# Apply Report: Track 4 Slice 4 — Coordinator UX and State Visibility

## Change

- **Change ID:** `2026-04-23-track-4-slice-4-coordinator-ux`
- **Scope:** Parent-visible coordinator lifecycle summary, blocked-child visibility, next-action hints, and deterministic inspection narrative for local Track 4 orchestration.

## Outcome

Apply work for this change has been completed and the missing audit artifacts have now been persisted.

The implemented slice delivers:

- a deterministic **coordinator summary state** surfaced from coordinator-owned authority;
- explicit **blocked / approval-needed child visibility** for parent inspection;
- normalized parent-readable **next-action hints**;
- a stable parent-facing **inspection narrative** through `delegate_inspect`;
- bounded verification without widening into remote bridge or delegated child authority.

## Implementation Summary

Implementation and testing were already completed in the runtime before this documentation catch-up step. Based on the change proposal, design, tasks, and current verification evidence, the completed apply work covered the following runtime surfaces:

- `clients/agent-runtime/src/agent/coordinator.rs`
  - computes and exposes deterministic parent-visible coordinator summary state;
  - surfaces blocked / approval-needed child state from coordinator-owned read-model authority;
  - preserves stable blocked-child identity and deterministic inspection semantics.
- `clients/agent-runtime/src/tools/delegate_inspect.rs`
  - returns the aggregate coordinator summary contract directly;
  - exposes parent-readable blocked-child and next-action information without requiring callers to reconstruct meaning from raw child transitions.

## Verification Evidence

The following focused verification command was run successfully against the affected runtime slice:

```bash
cargo test --manifest-path clients/agent-runtime/Cargo.toml coordinator -- --nocapture
```

Observed result:

- coordinator-focused runtime test slice passed;
- output included successful coverage for coordinator summary states, blocked-child visibility, approval-needed handling, cancellation visibility, deterministic inspection behavior, and related local orchestration contracts.

## Task State

`tasks.md` for this change is fully checked complete across all listed phases.

## Audit Completion

This report, together with `apply-result.json` and `state.yaml`, closes the missing apply-artifact gap for this change so the OpenSpec audit chain is complete.
