Add get_kvs_value and set_kvs_value actions for Shelly RPC devices

[bieniu]

Breaking change

Proposed change

Adds following actions:

• get_kvs_value - gets a value from the device's Key-Value-Storage
• set_kvs_value - sets a value in the device's Key-Value-Storage

Feature request: https://community.home-assistant.io/t/support-for-shelly-kvs-values-as-sensors/757687
Waiting for home-assistant-libs/aioshelly#1000

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Add information about Shelly actions home-assistant.io#42046
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[home-assistant]

Hey there @thecode, @chemelli74, @bdraco, mind taking a look at this pull request as it has been labeled with an integration (shelly) you are listed as a code owner for? Thanks!

Code owner commands

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• @home-assistant close Closes the pull request.
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• @home-assistant reopen Reopen the pull request.
• @home-assistant unassign shelly Removes the current integration label and assignees on the pull request, add the integration domain after the command.
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[Copilot]

Pull request overview

This PR adds two new service actions (get_kvs_value and set_kvs_value) to the Shelly integration, enabling users to interact with the Key-Value Storage (KVS) feature available on Shelly RPC devices (Gen2 and newer). The implementation includes comprehensive validation, error handling, test coverage, and user-facing documentation.

Key changes:

• New services module with device validation and error handling for KVS operations
• Support for retrieving and setting KVS values on RPC-enabled Shelly devices
• Quality scale updates marking action-setup and related rules as complete

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
homeassistant/components/shelly/services.py	New services module implementing get_kvs_value and set_kvs_value actions with comprehensive validation (RPC-only, non-sleeping devices) and error handling
homeassistant/components/shelly/__init__.py	Integrates services setup by calling async_setup_services during component initialization
homeassistant/components/shelly/const.py	Adds ATTR_KEY and ATTR_VALUE constants for service parameter definitions
homeassistant/components/shelly/services.yaml	Defines service schemas with device selector and text/object fields for KVS operations
homeassistant/components/shelly/strings.json	Adds service descriptions, field labels, and error messages for KVS functionality
homeassistant/components/shelly/icons.json	Adds import/export icons for get_kvs_value and set_kvs_value services
homeassistant/components/shelly/quality_scale.yaml	Updates quality scale marking action-related rules as complete
tests/components/shelly/test_services.py	Comprehensive test coverage including success cases, validation errors, device compatibility checks, and exception handling

[thecode]

Tested with various payloads, looks great 👍