# Implementation plan: <title>

**Spec:** <NNN-lower-kebab-case>
**Status:** Proposed

## Current system

<Relevant components, extension points, and constraints verified in source.>

## Proposed design

<Components and responsibilities.>

## Data, API, events, and configuration

<Exact changes or "None" for each applicable surface.>

## Lifecycle and failure behavior

<Startup, normal execution, cancellation, teardown, and recovery.>

## Security and privacy

<Trust model, permissions, sensitive data, and abuse cases.>

## Compatibility and migration

<Format or API consequences and migration plan.>

## Verification

- Unit: <coverage>
- Integration: <coverage>
- End-to-end or snapshot: <coverage>
- Manual: <coverage>

## Documentation and release

<Affected docs, package metadata, examples, and release notes.>

## Rejected alternatives

- <Alternative and durable reason for rejection.>